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TTY/Serial patches for 4.15-rc1 

Here is the big tty/serial driver pull request for 4.15-rc1.
 
 Lots of serial driver updates in here, some small vt cleanups, and a
 raft of SPDX and license boilerplate cleanups, messing up the diffstat a
 bit.
 
 Nothing major, with no realy functional changes except better hardware
 support for some platforms.
 
 All of these have been in linux-next for a while with no reported
 issues.
 
 Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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Merge tag 'tty-4.15-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/tty

Pull tty/serial updates from Greg KH:
 "Here is the big tty/serial driver pull request for 4.15-rc1.

  Lots of serial driver updates in here, some small vt cleanups, and a
  raft of SPDX and license boilerplate cleanups, messing up the diffstat
  a bit.

  Nothing major, with no realy functional changes except better hardware
  support for some platforms.

  All of these have been in linux-next for a while with no reported
  issues"

* tag 'tty-4.15-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/tty: (110 commits)
  tty: ehv_bytechan: fix spelling mistake
  tty: serial: meson: allow baud-rates lower than 9600
  serial: 8250_fintek: Fix crash with baud rate B0
  serial: 8250_fintek: Disable delays for ports != 0
  serial: 8250_fintek: Return -EINVAL on invalid configuration
  tty: Remove redundant license text
  tty: serdev: Remove redundant license text
  tty: hvc: Remove redundant license text
  tty: serial: Remove redundant license text
  tty: add SPDX identifiers to all remaining files in drivers/tty/
  tty: serial: jsm: remove redundant pointer ts
  tty: serial: jsm: add space before the open parenthesis '('
  tty: serial: jsm: fix coding style
  tty: serial: jsm: delete space between function name and '('
  tty: serial: jsm: add blank line after declarations
  tty: serial: jsm: change the type of local variable
  tty: serial: imx: remove dead code imx_dma_rxint
  tty: serial: imx: disable ageing timer interrupt if dma in use
  serial: 8250: fix potential deadlock in rs485-mode
  serial: m32r_sio: Drop redundant .data assignment
  ...
hifive-unleashed-5.1
Linus Torvalds 2017-11-13 21:05:31 -08:00
parent 449fcf3ab0 57f5d648c4
commit fb0255fb29
202 changed files with 1279 additions and 1671 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

2
Documentation/devicetree/bindings/dma/stm32-dma.txt
View File

@ -71,7 +71,7 @@ channel: a phandle to the DMA controller plus the following four integer cells:
Example:
usart1: serial@40011000 {
compatible = "st,stm32-usart", "st,stm32-uart";
compatible = "st,stm32-uart";
reg = <0x40011000 0x400>;
interrupts = <37>;
clocks = <&clk_pclk2>;

1
Documentation/devicetree/bindings/serial/atmel-usart.txt
View File

@ -24,6 +24,7 @@ Optional properties:
- dma-names: "rx" for RX channel, "tx" for TX channel.
- atmel,fifo-size: maximum number of data the RX and TX FIFOs can store for FIFO
capable USARTs.
- rs485-rts-delay, rs485-rx-during-tx, linux,rs485-enabled-at-boot-time: see rs485.txt
<chip> compatible description:
- at91rm9200: legacy USART support

1
Documentation/devicetree/bindings/serial/fsl-imx-uart.txt
View File

@ -9,6 +9,7 @@ Optional properties:
- fsl,irda-mode : Indicate the uart supports irda mode
- fsl,dte-mode : Indicate the uart works in DTE mode. The uart works
in DCE mode by default.
- rs485-rts-delay, rs485-rx-during-tx, linux,rs485-enabled-at-boot-time: see rs485.txt
Please check Documentation/devicetree/bindings/serial/serial.txt
for the complete list of generic properties.

1
Documentation/devicetree/bindings/serial/fsl-lpuart.txt
View File

@ -16,6 +16,7 @@ Required properties:
Optional properties:
- dmas: A list of two dma specifiers, one for each entry in dma-names.
- dma-names: should contain "tx" and "rx".
- rs485-rts-delay, rs485-rx-during-tx, linux,rs485-enabled-at-boot-time: see rs485.txt
Note: Optional properties for DMA support. Write them both or both not.

1
Documentation/devicetree/bindings/serial/omap_serial.txt
View File

@ -19,6 +19,7 @@ Optional properties:
- dmas : DMA specifier, consisting of a phandle to the DMA controller
node and a DMA channel number.
- dma-names : "rx" for receive channel, "tx" for transmit channel.
- rs485-rts-delay, rs485-rx-during-tx, linux,rs485-enabled-at-boot-time: see rs485.txt
Example:

10
Documentation/devicetree/bindings/serial/st,stm32-usart.txt
View File

@ -2,14 +2,10 @@
Required properties:
- compatible: can be either:
- "st,stm32-usart",
- "st,stm32-uart",
- "st,stm32f7-usart",
- "st,stm32f7-uart",
- "st,stm32h7-usart"
- "st,stm32h7-uart".
depending on whether the device supports synchronous mode
and is compatible with stm32(f4), stm32f7 or stm32h7.
depending is compatible with stm32(f4), stm32f7 or stm32h7.
- reg: The address and length of the peripheral registers space
- interrupts:
- The interrupt line for the USART instance,
@ -33,7 +29,7 @@ usart4: serial@40004c00 {
};
usart2: serial@40004400 {
compatible = "st,stm32-usart", "st,stm32-uart";
compatible = "st,stm32-uart";
reg = <0x40004400 0x400>;
interrupts = <38>;
clocks = <&clk_pclk1>;
@ -43,7 +39,7 @@ usart2: serial@40004400 {
};
usart1: serial@40011000 {
compatible = "st,stm32-usart", "st,stm32-uart";
compatible = "st,stm32-uart";
reg = <0x40011000 0x400>;
interrupts = <37>;
clocks = <&rcc 0 164>;

12
arch/arm/boot/dts/stm32f429.dtsi
View File

@ -314,7 +314,7 @@
};
usart2: serial@40004400 {
compatible = "st,stm32-usart", "st,stm32-uart";
compatible = "st,stm32-uart";
reg = <0x40004400 0x400>;
interrupts = <38>;
clocks = <&rcc 0 STM32F4_APB1_CLOCK(UART2)>;
@ -322,7 +322,7 @@
};
usart3: serial@40004800 {
compatible = "st,stm32-usart", "st,stm32-uart";
compatible = "st,stm32-uart";
reg = <0x40004800 0x400>;
interrupts = <39>;
clocks = <&rcc 0 STM32F4_APB1_CLOCK(UART3)>;
@ -386,7 +386,7 @@
};
usart7: serial@40007800 {
compatible = "st,stm32-usart", "st,stm32-uart";
compatible = "st,stm32-uart";
reg = <0x40007800 0x400>;
interrupts = <82>;
clocks = <&rcc 0 STM32F4_APB1_CLOCK(UART7)>;
@ -394,7 +394,7 @@
};
usart8: serial@40007c00 {
compatible = "st,stm32-usart", "st,stm32-uart";
compatible = "st,stm32-uart";
reg = <0x40007c00 0x400>;
interrupts = <83>;
clocks = <&rcc 0 STM32F4_APB1_CLOCK(UART8)>;
@ -444,7 +444,7 @@
};
usart1: serial@40011000 {
compatible = "st,stm32-usart", "st,stm32-uart";
compatible = "st,stm32-uart";
reg = <0x40011000 0x400>;
interrupts = <37>;
clocks = <&rcc 0 STM32F4_APB2_CLOCK(USART1)>;
@ -455,7 +455,7 @@
};
usart6: serial@40011400 {
compatible = "st,stm32-usart", "st,stm32-uart";
compatible = "st,stm32-uart";
reg = <0x40011400 0x400>;
interrupts = <71>;
clocks = <&rcc 0 STM32F4_APB2_CLOCK(USART6)>;

12
arch/arm/boot/dts/stm32f746.dtsi
View File

@ -136,7 +136,7 @@
};
usart2: serial@40004400 {
compatible = "st,stm32f7-usart", "st,stm32f7-uart";
compatible = "st,stm32f7-uart";
reg = <0x40004400 0x400>;
interrupts = <38>;
clocks = <&rcc 1 CLK_USART2>;
@ -144,7 +144,7 @@
};
usart3: serial@40004800 {
compatible = "st,stm32f7-usart", "st,stm32f7-uart";
compatible = "st,stm32f7-uart";
reg = <0x40004800 0x400>;
interrupts = <39>;
clocks = <&rcc 1 CLK_USART3>;
@ -177,7 +177,7 @@
};
usart7: serial@40007800 {
compatible = "st,stm32f7-usart", "st,stm32f7-uart";
compatible = "st,stm32f7-uart";
reg = <0x40007800 0x400>;
interrupts = <82>;
clocks = <&rcc 1 CLK_UART7>;
@ -185,7 +185,7 @@
};
usart8: serial@40007c00 {
compatible = "st,stm32f7-usart", "st,stm32f7-uart";
compatible = "st,stm32f7-uart";
reg = <0x40007c00 0x400>;
interrupts = <83>;
clocks = <&rcc 1 CLK_UART8>;
@ -193,7 +193,7 @@
};
usart1: serial@40011000 {
compatible = "st,stm32f7-usart", "st,stm32f7-uart";
compatible = "st,stm32f7-uart";
reg = <0x40011000 0x400>;
interrupts = <37>;
clocks = <&rcc 1 CLK_USART1>;
@ -201,7 +201,7 @@
};
usart6: serial@40011400 {
compatible = "st,stm32f7-usart", "st,stm32f7-uart";
compatible = "st,stm32f7-uart";
reg = <0x40011400 0x400>;
interrupts = <71>;
clocks = <&rcc 1 CLK_USART6>;

4
arch/arm/boot/dts/stm32h743.dtsi
View File

@ -67,7 +67,7 @@
};
usart2: serial@40004400 {
compatible = "st,stm32f7-usart", "st,stm32f7-uart";
compatible = "st,stm32f7-uart";
reg = <0x40004400 0x400>;
interrupts = <38>;
status = "disabled";
@ -99,7 +99,7 @@
};
usart1: serial@40011000 {
compatible = "st,stm32f7-usart", "st,stm32f7-uart";
compatible = "st,stm32f7-uart";
reg = <0x40011000 0x400>;
interrupts = <37>;
status = "disabled";

37
drivers/acpi/scan.c
View File

@ -1505,41 +1505,38 @@ static void acpi_init_coherency(struct acpi_device *adev)
adev->flags.coherent_dma = cca;
}
static int acpi_check_spi_i2c_slave(struct acpi_resource *ares, void *data)
static int acpi_check_serial_bus_slave(struct acpi_resource *ares, void *data)
{
bool *is_spi_i2c_slave_p = data;
bool *is_serial_bus_slave_p = data;
if (ares->type != ACPI_RESOURCE_TYPE_SERIAL_BUS)
return 1;
/*
* devices that are connected to UART still need to be enumerated to
* platform bus
*/
if (ares->data.common_serial_bus.type != ACPI_RESOURCE_SERIAL_TYPE_UART)
*is_spi_i2c_slave_p = true;
*is_serial_bus_slave_p = true;
/* no need to do more checking */
return -1;
}
static bool acpi_is_spi_i2c_slave(struct acpi_device *device)
static bool acpi_is_serial_bus_slave(struct acpi_device *device)
{
struct list_head resource_list;
bool is_spi_i2c_slave = false;
bool is_serial_bus_slave = false;
/* Macs use device properties in lieu of _CRS resources */
if (x86_apple_machine &&
(fwnode_property_present(&device->fwnode, "spiSclkPeriod") ||
fwnode_property_present(&device->fwnode, "i2cAddress")))
fwnode_property_present(&device->fwnode, "i2cAddress") ||
fwnode_property_present(&device->fwnode, "baud")))
return true;
INIT_LIST_HEAD(&resource_list);
acpi_dev_get_resources(device, &resource_list, acpi_check_spi_i2c_slave,
&is_spi_i2c_slave);
acpi_dev_get_resources(device, &resource_list,
acpi_check_serial_bus_slave,
&is_serial_bus_slave);
acpi_dev_free_resource_list(&resource_list);
return is_spi_i2c_slave;
return is_serial_bus_slave;
}
void acpi_init_device_object(struct acpi_device *device, acpi_handle handle,
@ -1557,7 +1554,7 @@ void acpi_init_device_object(struct acpi_device *device, acpi_handle handle,
acpi_bus_get_flags(device);
device->flags.match_driver = false;
device->flags.initialized = true;
device->flags.spi_i2c_slave = acpi_is_spi_i2c_slave(device);
device->flags.serial_bus_slave = acpi_is_serial_bus_slave(device);
acpi_device_clear_enumerated(device);
device_initialize(&device->dev);
dev_set_uevent_suppress(&device->dev, true);
@ -1841,10 +1838,10 @@ static acpi_status acpi_bus_check_add(acpi_handle handle, u32 lvl_not_used,
static void acpi_default_enumeration(struct acpi_device *device)
{
/*
* Do not enumerate SPI/I2C slaves as they will be enumerated by their
* respective parents.
* Do not enumerate SPI/I2C/UART slaves as they will be enumerated by
* their respective parents.
*/
if (!device->flags.spi_i2c_slave) {
if (!device->flags.serial_bus_slave) {
acpi_create_platform_device(device, NULL);
acpi_device_set_enumerated(device);
} else {
@ -1941,7 +1938,7 @@ static void acpi_bus_attach(struct acpi_device *device)
return;
device->flags.match_driver = true;
if (ret > 0 && !device->flags.spi_i2c_slave) {
if (ret > 0 && !device->flags.serial_bus_slave) {
acpi_device_set_enumerated(device);
goto ok;
}
@ -1950,7 +1947,7 @@ static void acpi_bus_attach(struct acpi_device *device)
if (ret < 0)
return;
if (!device->pnp.type.platform_id && !device->flags.spi_i2c_slave)
if (!device->pnp.type.platform_id && !device->flags.serial_bus_slave)
acpi_device_set_enumerated(device);
else
acpi_default_enumeration(device);

1
drivers/tty/amiserial.c
View File

@ -1,3 +1,4 @@
// SPDX-License-Identifier: GPL-2.0
/*
* Serial driver for the amiga builtin port.
*

3
drivers/tty/bfin_jtag_comm.c
View File

@ -1,11 +1,10 @@
// SPDX-License-Identifier: GPL-2.0+
/*
* TTY over Blackfin JTAG Communication
*
* Copyright 2008-2009 Analog Devices Inc.
*
* Enter bugs at http://blackfin.uclinux.org/
*
* Licensed under the GPL-2 or later.
*/
#define DRV_NAME "bfin-jtag-comm"

17
drivers/tty/cyclades.c
View File

@ -1,3 +1,4 @@
// SPDX-License-Identifier: GPL-2.0
#undef BLOCKMOVE
#define Z_WAKE
#undef Z_EXT_CHARS_IN_BUFFER
@ -286,8 +287,7 @@ static long cyz_polling_cycle = CZ_DEF_POLL;
static DEFINE_TIMER(cyz_timerlist, cyz_poll);
#else /* CONFIG_CYZ_INTR */
static void cyz_rx_restart(unsigned long);
static struct timer_list cyz_rx_full_timer[NR_PORTS];
static void cyz_rx_restart(struct timer_list *);
#endif /* CONFIG_CYZ_INTR */
static void cyy_writeb(struct cyclades_port *port, u32 reg, u8 val)
@ -992,10 +992,8 @@ static void cyz_handle_rx(struct cyclades_port *info)
else
char_count = rx_put - rx_get + rx_bufsize;
if (char_count >= readl(&buf_ctrl->rx_threshold) &&
!timer_pending(&cyz_rx_full_timer[
info->line]))
mod_timer(&cyz_rx_full_timer[info->line],
jiffies + 1);
!timer_pending(&info->rx_full_timer))
mod_timer(&info->rx_full_timer, jiffies + 1);
#endif
info->idle_stats.recv_idle = jiffies;
tty_schedule_flip(&info->port);
@ -1197,9 +1195,9 @@ static irqreturn_t cyz_interrupt(int irq, void *dev_id)
return IRQ_HANDLED;
} /* cyz_interrupt */
static void cyz_rx_restart(unsigned long arg)
static void cyz_rx_restart(struct timer_list *t)
{
struct cyclades_port *info = (struct cyclades_port *)arg;
struct cyclades_port *info = from_timer(info, t, rx_full_timer);
struct cyclades_card *card = info->card;
int retval;
__u32 channel = info->line - card->first_line;
@ -3097,8 +3095,7 @@ static int cy_init_card(struct cyclades_card *cinfo)
else
info->xmit_fifo_size = 4 * CYZ_FIFO_SIZE;
#ifdef CONFIG_CYZ_INTR
setup_timer(&cyz_rx_full_timer[port],
cyz_rx_restart, (unsigned long)info);
timer_setup(&info->rx_full_timer, cyz_rx_restart, 0);
#endif
} else {
unsigned short chip_number;

9
drivers/tty/ehv_bytechan.c
View File

@ -1,13 +1,10 @@
// SPDX-License-Identifier: GPL-2.0
/* ePAPR hypervisor byte channel device driver
*
* Copyright 2009-2011 Freescale Semiconductor, Inc.
*
* Author: Timur Tabi <timur@freescale.com>
*
* This file is licensed under the terms of the GNU General Public License
* version 2. This program is licensed "as is" without any warranty of any
* kind, whether express or implied.
*
* This driver support three distinct interfaces, all of which are related to
* ePAPR hypervisor byte channels.
*
@ -328,7 +325,7 @@ console_initcall(ehv_bc_console_init);
/******************************** TTY DRIVER ********************************/
/*
* byte channel receive interupt handler
* byte channel receive interrupt handler
*
* This ISR is called whenever data is available on a byte channel.
*/
@ -428,7 +425,7 @@ static void ehv_bc_tx_dequeue(struct ehv_bc_data *bc)
}
/*
* byte channel transmit interupt handler
* byte channel transmit interrupt handler
*
* This ISR is called whenever space becomes available for transmitting
* characters on a byte channel.

11
drivers/tty/goldfish.c
View File

@ -1,17 +1,8 @@
// SPDX-License-Identifier: GPL-2.0
/*
* Copyright (C) 2007 Google, Inc.
* Copyright (C) 2012 Intel, Inc.
* Copyright (C) 2017 Imagination Technologies Ltd.
*
* This software is licensed under the terms of the GNU General Public
* License version 2, as published by the Free Software Foundation, and
* may be copied, distributed, and modified under those terms.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
*/
#include <linux/console.h>

3
drivers/tty/hvc/hvc_bfin_jtag.c
View File

@ -1,11 +1,10 @@
// SPDX-License-Identifier: GPL-2.0+
/*
* Console via Blackfin JTAG Communication
*
* Copyright 2008-2011 Analog Devices Inc.
*
* Enter bugs at http://blackfin.uclinux.org/
*
* Licensed under the GPL-2 or later.
*/
#include <linux/console.h>

15
drivers/tty/hvc/hvc_console.c
View File

@ -1,3 +1,4 @@
// SPDX-License-Identifier: GPL-2.0+
/*
* Copyright (C) 2001 Anton Blanchard <anton@au.ibm.com>, IBM
* Copyright (C) 2001 Paul Mackerras <paulus@au.ibm.com>, IBM
@ -6,20 +7,6 @@
*
* Additional Author(s):
* Ryan S. Arnold <rsa@us.ibm.com>
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; either version 2 of the License, or
* (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software
* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
*/
#include <linux/console.h>

15
drivers/tty/hvc/hvc_console.h
View File

@ -1,3 +1,4 @@
// SPDX-License-Identifier: GPL-2.0+
/*
* hvc_console.h
* Copyright (C) 2005 IBM Corporation
@ -8,20 +9,6 @@
* hvc_console header information:
* moved here from arch/powerpc/include/asm/hvconsole.h
* and drivers/char/hvc_console.c
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; either version 2 of the License, or
* (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software
* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
*/
#ifndef HVC_CONSOLE_H

13
drivers/tty/hvc/hvc_dcc.c
View File

@ -1,14 +1,5 @@
/* Copyright (c) 2010, 2014 The Linux Foundation. All rights reserved.
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License version 2 and
* only version 2 as published by the Free Software Foundation.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*/
// SPDX-License-Identifier: GPL-2.0
/* Copyright (c) 2010, 2014 The Linux Foundation. All rights reserved. */
#include <linux/init.h>

16
drivers/tty/hvc/hvc_opal.c
View File

@ -1,22 +1,8 @@
// SPDX-License-Identifier: GPL-2.0+
/*
* opal driver interface to hvc_console.c
*
* Copyright 2011 Benjamin Herrenschmidt <benh@kernel.crashing.org>, IBM Corp.
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; either version 2 of the License, or
* (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software
* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
*
*/
#undef DEBUG

15
drivers/tty/hvc/hvc_rtas.c
View File

@ -1,3 +1,4 @@
// SPDX-License-Identifier: GPL-2.0+
/*
* IBM RTAS driver interface to hvc_console.c
*
@ -11,20 +12,6 @@
*
* inspired by drivers/char/hvc_console.c
* written by Anton Blanchard and Paul Mackerras
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; either version 2 of the License, or
* (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software
* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
*/
#include <linux/console.h>

11
drivers/tty/hvc/hvc_tile.c
View File

@ -1,16 +1,7 @@
// SPDX-License-Identifier: GPL-2.0
/*
* Copyright 2010 Tilera Corporation. All Rights Reserved.
*
* This program is free software; you can redistribute it and/or
* modify it under the terms of the GNU General Public License
* as published by the Free Software Foundation, version 2.
*
* This program is distributed in the hope that it will be useful, but
* WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE, GOOD TITLE or
* NON INFRINGEMENT. See the GNU General Public License for
* more details.
*
* Tilera TILE Processor hypervisor console
*/

15
drivers/tty/hvc/hvc_udbg.c
View File

@ -1,21 +1,8 @@
// SPDX-License-Identifier: GPL-2.0+
/*
* udbg interface to hvc_console.c
*
* (C) Copyright David Gibson, IBM Corporation 2008.
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; either version 2 of the License, or
* (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software
* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
*/
#include <linux/console.h>

15
drivers/tty/hvc/hvc_vio.c
View File

@ -1,3 +1,4 @@
// SPDX-License-Identifier: GPL-2.0+
/*
* vio driver interface to hvc_console.c
*
@ -14,20 +15,6 @@
* Additional Author(s):
* Ryan S. Arnold <rsa@us.ibm.com>
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; either version 2 of the License, or
* (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software
* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
*
* TODO:
*
* - handle error in sending hvsi protocol packets

15
drivers/tty/hvc/hvc_xen.c
View File

@ -1,21 +1,8 @@
// SPDX-License-Identifier: GPL-2.0+
/*
* xen console driver interface to hvc_console.c
*
* (c) 2007 Gerd Hoffmann <kraxel@suse.de>
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; either version 2 of the License, or
* (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software
* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
*/
#include <linux/console.h>

15
drivers/tty/hvc/hvcs.c
View File

@ -1,22 +1,9 @@
// SPDX-License-Identifier: GPL-2.0+
/*
* IBM eServer Hypervisor Virtual Console Server Device Driver
* Copyright (C) 2003, 2004 IBM Corp.
* Ryan S. Arnold (rsa@us.ibm.com)
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; either version 2 of the License, or
* (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software
* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
*
* Author(s) : Ryan S. Arnold <rsa@us.ibm.com>
*
* This is the device driver for the IBM Hypervisor Virtual Console Server,

15
drivers/tty/hvc/hvsi.c
View File

@ -1,19 +1,6 @@
// SPDX-License-Identifier: GPL-2.0+
/*
* Copyright (C) 2004 Hollis Blanchard <hollisb@us.ibm.com>, IBM
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; either version 2 of the License, or
* (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software
* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
*/
/* Host Virtual Serial Interface (HVSI) is a protocol between the hosted OS

1
drivers/tty/ipwireless/main.c
View File

@ -1,3 +1,4 @@
// SPDX-License-Identifier: GPL-2.0
/*
* IPWireless 3G PCMCIA Network Driver
*

6
drivers/tty/isicom.c
View File

@ -1,9 +1,5 @@
// SPDX-License-Identifier: GPL-2.0+
/*
* This program is free software; you can redistribute it and/or
* modify it under the terms of the GNU General Public License
* as published by the Free Software Foundation; either version
* 2 of the License, or (at your option) any later version.
*
* Original driver code supplied by Multi-Tech
*
* Changes

16
drivers/tty/metag_da.c
View File

@ -1,12 +1,8 @@
// SPDX-License-Identifier: GPL-2.0
/*
* dashtty.c - tty driver for Dash channels interface.
*
* Copyright (C) 2007,2008,2012 Imagination Technologies
*
* This file is subject to the terms and conditions of the GNU General Public
* License. See the file COPYING in the main directory of this archive
* for more details.
*
*/
#include <linux/atomic.h>
@ -309,7 +305,7 @@ static int put_data(void *arg)
/*
* This gets called every DA_TTY_POLL and polls the channels for data
*/
static void dashtty_timer(unsigned long ignored)
static void dashtty_timer(struct timer_list *poll_timer)
{
int channel;
@ -323,12 +319,12 @@ static void dashtty_timer(unsigned long ignored)
if (channel >= 0)
fetch_data(channel);
mod_timer(&poll_timer, jiffies + DA_TTY_POLL);
mod_timer(poll_timer, jiffies + DA_TTY_POLL);
}
static void add_poll_timer(struct timer_list *poll_timer)
{
setup_pinned_timer(poll_timer, dashtty_timer, 0);
timer_setup(poll_timer, dashtty_timer, TIMER_PINNED);
poll_timer->expires = jiffies + DA_TTY_POLL;
/*
@ -461,7 +457,7 @@ static void dashtty_hangup(struct tty_struct *tty)
* buffers. It is used to delay the expensive writeout until the writer has
* stopped writing.
*/
static void dashtty_put_timer(unsigned long ignored)
static void dashtty_put_timer(struct timer_list *unused)
{
if (atomic_read(&dashtty_xmit_cnt))
wake_up_interruptible(&dashtty_waitqueue);
@ -603,7 +599,7 @@ static int __init dashtty_init(void)
complete(&dport->xmit_empty);
}
setup_timer(&put_timer, dashtty_put_timer, 0);
timer_setup(&put_timer, dashtty_put_timer, 0);
init_waitqueue_head(&dashtty_waitqueue);
dashtty_thread = kthread_create(put_data, NULL, "ttyDA");

13
drivers/tty/mips_ejtag_fdc.c
View File

@ -1,11 +1,8 @@
// SPDX-License-Identifier: GPL-2.0
/*
* TTY driver for MIPS EJTAG Fast Debug Channels.
*
* Copyright (C) 2007-2015 Imagination Technologies Ltd
*
* This file is subject to the terms and conditions of the GNU General Public
* License. See the file COPYING in the main directory of this archive for more
* details.
*/
#include <linux/atomic.h>
@ -683,9 +680,9 @@ static irqreturn_t mips_ejtag_fdc_isr(int irq, void *dev_id)
* It simply triggers the common FDC handler code and arranges for further
* polling.
*/
static void mips_ejtag_fdc_tty_timer(unsigned long opaque)
static void mips_ejtag_fdc_tty_timer(struct timer_list *t)
{
struct mips_ejtag_fdc_tty *priv = (void *)opaque;
struct mips_ejtag_fdc_tty *priv = from_timer(priv, t, poll_timer);
mips_ejtag_fdc_handle(priv);
if (!priv->removing)
@ -1002,8 +999,8 @@ static int mips_ejtag_fdc_tty_probe(struct mips_cdmm_device *dev)
raw_spin_unlock_irq(&priv->lock);
} else {
/* If we didn't get an usable IRQ, poll instead */
setup_pinned_timer(&priv->poll_timer, mips_ejtag_fdc_tty_timer,
(unsigned long)priv);
timer_setup(&priv->poll_timer, mips_ejtag_fdc_tty_timer,
TIMER_PINNED);
priv->poll_timer.expires = jiffies + FDC_TTY_POLL;
/*
* Always attach the timer to the right CPU. The channels are

6
drivers/tty/moxa.c
View File

@ -1,3 +1,4 @@
// SPDX-License-Identifier: GPL-2.0+
/*****************************************************************************/
/*
* moxa.c -- MOXA Intellio family multiport serial driver.
@ -7,11 +8,6 @@
*
* This code is loosely based on the Linux serial driver, written by
* Linus Torvalds, Theodore T'so and others.
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; either version 2 of the License, or
* (at your option) any later version.
*/
/*

22
drivers/tty/mxser.c
View File

@ -1,3 +1,4 @@
// SPDX-License-Identifier: GPL-2.0+
/*
* mxser.c -- MOXA Smartio/Industio family multiport serial driver.
*
@ -8,11 +9,6 @@
* Linux serial driver, written by Linus Torvalds, Theodore T'so and
* others.
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; either version 2 of the License, or
* (at your option) any later version.
*
* Fed through a cleanup, indent and remove of non 2.6 code by Alan Cox
* <alan@lxorguk.ukuu.org.uk>. The original 1.8 code is available on
* www.moxa.com.
@ -642,8 +638,7 @@ static int mxser_set_baud(struct tty_struct *tty, long newspd)
* This routine is called to set the UART divisor registers to match
* the specified baud rate for a serial port.
*/
static int mxser_change_speed(struct tty_struct *tty,
struct ktermios *old_termios)
static int mxser_change_speed(struct tty_struct *tty)
{
struct mxser_port *info = tty->driver_data;
unsigned cflag, cval, fcr;
@ -945,7 +940,7 @@ static int mxser_activate(struct tty_port *port, struct tty_struct *tty)
/*
* and set the speed of the serial port
*/
mxser_change_speed(tty, NULL);
mxser_change_speed(tty);
spin_unlock_irqrestore(&info->slock, flags);
return 0;
@ -1288,7 +1283,7 @@ static int mxser_set_serial_info(struct tty_struct *tty,
if (tty_port_initialized(port)) {
if (flags != (port->flags & ASYNC_SPD_MASK)) {
spin_lock_irqsave(&info->slock, sl_flags);
mxser_change_speed(tty, NULL);
mxser_change_speed(tty);
spin_unlock_irqrestore(&info->slock, sl_flags);
}
} else {
@ -1946,7 +1941,7 @@ static void mxser_set_termios(struct tty_struct *tty, struct ktermios *old_termi
unsigned long flags;
spin_lock_irqsave(&info->slock, flags);
mxser_change_speed(tty, old_termios);
mxser_change_speed(tty);
spin_unlock_irqrestore(&info->slock, flags);
if ((old_termios->c_cflag & CRTSCTS) && !C_CRTSCTS(tty)) {
@ -2375,8 +2370,7 @@ static void mxser_release_ISA_res(struct mxser_board *brd)
mxser_release_vector(brd);
}
static int mxser_initbrd(struct mxser_board *brd,
struct pci_dev *pdev)
static int mxser_initbrd(struct mxser_board *brd)
{
struct mxser_port *info;
unsigned int i;
@ -2640,7 +2634,7 @@ static int mxser_probe(struct pci_dev *pdev,
}
/* mxser_initbrd will hook ISR. */
retval = mxser_initbrd(brd, pdev);
retval = mxser_initbrd(brd);
if (retval)
goto err_rel3;
@ -2746,7 +2740,7 @@ static int __init mxser_module_init(void)
brd->info->name, ioaddr[b]);
/* mxser_initbrd will hook ISR. */
if (mxser_initbrd(brd, NULL) < 0) {
if (mxser_initbrd(brd) < 0) {
mxser_release_ISA_res(brd);
brd->info = NULL;
continue;

18
drivers/tty/n_gsm.c
View File

@ -1,20 +1,8 @@
// SPDX-License-Identifier: GPL-2.0
/*
* n_gsm.c GSM 0710 tty multiplexor
* Copyright (c) 2009/10 Intel Corporation
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License version 2 as
* published by the Free Software Foundation.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software
* Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
*
* * THIS IS A DEVELOPMENT SNAPSHOT IT IS NOT A FINAL RELEASE *
*
* TO DO:
@ -1646,9 +1634,7 @@ static struct gsm_dlci *gsm_dlci_alloc(struct gsm_mux *gsm, int addr)
}
skb_queue_head_init(&dlci->skb_list);
init_timer(&dlci->t1);
dlci->t1.function = gsm_dlci_t1;
dlci->t1.data = (unsigned long)dlci;
setup_timer(&dlci->t1, gsm_dlci_t1, (unsigned long)dlci);
tty_port_init(&dlci->port);
dlci->port.ops = &gsm_port_ops;
dlci->gsm = gsm;

3
drivers/tty/n_hdlc.c
View File

@ -1,3 +1,4 @@
// SPDX-License-Identifier: GPL-1.0+
/* generic HDLC line discipline for Linux
*
* Written by Paul Fulghum paulkf@microgate.com
@ -11,8 +12,6 @@
*
* Original release 01/11/99
*
* This code is released under the GNU General Public License (GPL)
*
* This module implements the tty line discipline N_HDLC for use with
* tty device drivers that support bit-synchronous HDLC communications.
*

14
drivers/tty/n_null.c
View File

@ -1,3 +1,4 @@
// SPDX-License-Identifier: GPL-2.0
#include <linux/types.h>
#include <linux/errno.h>
#include <linux/tty.h>
@ -7,19 +8,6 @@
* n_null.c - Null line discipline used in the failure path
*
* Copyright (C) Intel 2017
*
* ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License version 2
* as published by the Free Software Foundation.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
*/
static int n_null_open(struct tty_struct *tty)

4
drivers/tty/n_r3964.c
View File

@ -1,3 +1,4 @@
// SPDX-License-Identifier: GPL-1.0+
/* r3964 linediscipline for linux
*
* -----------------------------------------------------------
@ -5,9 +6,6 @@
* Philips Automation Projects
* Kassel (Germany)
* -----------------------------------------------------------
* This software may be used and distributed according to the terms of
* the GNU General Public License, incorporated herein by reference.
*
* Author:
* L. Haag
*

12
drivers/tty/n_tracerouter.c
View File

@ -1,3 +1,4 @@
// SPDX-License-Identifier: GPL-2.0
/*
* n_tracerouter.c - Trace data router through tty space
*
@ -5,17 +6,6 @@
*
* ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License version 2
* as published by the Free Software Foundation.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
*
* This trace router uses the Linux line discipline framework to route
* trace data coming from a HW Modem to a PTI (Parallel Trace Module) port.
* The solution is not specific to a HW modem and this line disciple can

12
drivers/tty/n_tracesink.c
View File

@ -1,3 +1,4 @@
// SPDX-License-Identifier: GPL-2.0
/*
* n_tracesink.c - Trace data router and sink path through tty space.
*
@ -5,17 +6,6 @@
*
* ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License version 2
* as published by the Free Software Foundation.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
*
* The trace sink uses the Linux line discipline framework to receive
* trace data coming from the PTI source line discipline driver
* to a user-desired tty port, like USB.

12
drivers/tty/n_tracesink.h
View File

@ -1,3 +1,4 @@
// SPDX-License-Identifier: GPL-2.0
/*
* n_tracesink.h - Kernel driver API to route trace data in kernel space.
*
@ -5,17 +6,6 @@
*
* ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License version 2
* as published by the Free Software Foundation.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
*
* The PTI (Parallel Trace Interface) driver directs trace data routed from
* various parts in the system out through the Intel Penwell PTI port and
* out of the mobile device for analysis with a debugging tool

4
drivers/tty/n_tty.c
View File

@ -1,3 +1,4 @@
// SPDX-License-Identifier: GPL-1.0+
/*
* n_tty.c --- implements the N_TTY line discipline.
*
@ -15,9 +16,6 @@
* This file also contains code originally written by Linus Torvalds,
* Copyright 1991, 1992, 1993, and by Julian Cowley, Copyright 1994.
*
* This file may be redistributed under the terms of the GNU General Public
* License.
*
* Reduced memory usage for older ARM systems - Russell King.
*
* 2000/01/20 Fixed SMP locking on put_tty_queue using bits of

15
drivers/tty/nozomi.c
View File

@ -1,3 +1,4 @@
// SPDX-License-Identifier: (GPL-2.0+ OR BSD-3-Clause)
/*
* nozomi.c -- HSDPA driver Broadband Wireless Data Card - Globe Trotter
*
@ -21,20 +22,6 @@
* Copyright (c) 2006 Option Wireless n/v
* All rights Reserved.
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; either version 2 of the License, or
* (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software
* Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
*
* --------------------------------------------------------------------------
*/

15
drivers/tty/rocket.c
View File

@ -1,23 +1,10 @@
// SPDX-License-Identifier: (GPL-2.0+ OR BSD-3-Clause)
/*
* RocketPort device driver for Linux
*
* Written by Theodore Ts'o, 1995, 1996, 1997, 1998, 1999, 2000.
*
* Copyright (C) 1995, 1996, 1997, 1998, 1999, 2000, 2003 by Comtrol, Inc.
*
* This program is free software; you can redistribute it and/or
* modify it under the terms of the GNU General Public License as
* published by the Free Software Foundation; either version 2 of the
* License, or (at your option) any later version.
*
* This program is distributed in the hope that it will be useful, but
* WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software
* Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
*/
/*

8
drivers/tty/serdev/Kconfig
View File

@ -6,11 +6,19 @@ menuconfig SERIAL_DEV_BUS
help
Core support for devices connected via a serial port.
Note that you typically also want to enable TTY port controller support.
if SERIAL_DEV_BUS
config SERIAL_DEV_CTRL_TTYPORT
bool "Serial device TTY port controller"
help
Say Y here if you want to use the Serial device bus with common TTY
drivers (e.g. serial drivers).
If unsure, say Y.
depends on TTY
depends on SERIAL_DEV_BUS != m
default y
endif

152
drivers/tty/serdev/core.c
View File

@ -1,19 +1,12 @@
// SPDX-License-Identifier: GPL-2.0
/*
* Copyright (C) 2016-2017 Linaro Ltd., Rob Herring <robh@kernel.org>
*
* Based on drivers/spmi/spmi.c:
* Copyright (c) 2012-2015, The Linux Foundation. All rights reserved.
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License version 2 and
* only version 2 as published by the Free Software Foundation.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*/
#include <linux/acpi.h>
#include <linux/errno.h>
#include <linux/idr.h>
#include <linux/kernel.h>
@ -49,13 +42,22 @@ static const struct device_type serdev_ctrl_type = {
static int serdev_device_match(struct device *dev, struct device_driver *drv)
{
/* TODO: ACPI and platform matching */
/* TODO: platform matching */
if (acpi_driver_match_device(dev, drv))
return 1;
return of_driver_match_device(dev, drv);
}
static int serdev_uevent(struct device *dev, struct kobj_uevent_env *env)
{
/* TODO: ACPI and platform modalias */
int rc;
/* TODO: platform modalias */
rc = acpi_device_uevent_modalias(dev, env);
if (rc != -ENODEV)
return rc;
return of_device_uevent_modalias(dev, env);
}
@ -65,21 +67,32 @@ static int serdev_uevent(struct device *dev, struct kobj_uevent_env *env)
*/
int serdev_device_add(struct serdev_device *serdev)
{
struct serdev_controller *ctrl = serdev->ctrl;
struct device *parent = serdev->dev.parent;
int err;
dev_set_name(&serdev->dev, "%s-%d", dev_name(parent), serdev->nr);
/* Only a single slave device is currently supported. */
if (ctrl->serdev) {
dev_err(&serdev->dev, "controller busy\n");
return -EBUSY;
}
ctrl->serdev = serdev;
err = device_add(&serdev->dev);
if (err < 0) {
dev_err(&serdev->dev, "Can't add %s, status %d\n",
dev_name(&serdev->dev), err);
goto err_device_add;
goto err_clear_serdev;
}
dev_dbg(&serdev->dev, "device %s registered\n", dev_name(&serdev->dev));
err_device_add:
return 0;
err_clear_serdev:
ctrl->serdev = NULL;
return err;
}
EXPORT_SYMBOL_GPL(serdev_device_add);
@ -90,7 +103,10 @@ EXPORT_SYMBOL_GPL(serdev_device_add);
*/
void serdev_device_remove(struct serdev_device *serdev)
{
struct serdev_controller *ctrl = serdev->ctrl;
device_unregister(&serdev->dev);
ctrl->serdev = NULL;
}
EXPORT_SYMBOL_GPL(serdev_device_remove);
@ -260,6 +276,12 @@ static int serdev_drv_remove(struct device *dev)
static ssize_t modalias_show(struct device *dev,
struct device_attribute *attr, char *buf)
{
int len;
len = acpi_device_modalias(dev, buf, PAGE_SIZE - 1);
if (len != -ENODEV)
return len;
return of_device_modalias(dev, buf, PAGE_SIZE);
}
DEVICE_ATTR_RO(modalias);
@ -295,7 +317,6 @@ struct serdev_device *serdev_device_alloc(struct serdev_controller *ctrl)
return NULL;
serdev->ctrl = ctrl;
ctrl->serdev = serdev;
device_initialize(&serdev->dev);
serdev->dev.parent = &ctrl->dev;
serdev->dev.bus = &serdev_bus_type;
@ -329,6 +350,15 @@ struct serdev_controller *serdev_controller_alloc(struct device *parent,
if (!ctrl)
return NULL;
id = ida_simple_get(&ctrl_ida, 0, 0, GFP_KERNEL);
if (id < 0) {
dev_err(parent,
"unable to allocate serdev controller identifier.\n");
goto err_free;
}
ctrl->nr = id;
device_initialize(&ctrl->dev);
ctrl->dev.type = &serdev_ctrl_type;
ctrl->dev.bus = &serdev_bus_type;
@ -336,19 +366,15 @@ struct serdev_controller *serdev_controller_alloc(struct device *parent,
ctrl->dev.of_node = parent->of_node;
serdev_controller_set_drvdata(ctrl, &ctrl[1]);
id = ida_simple_get(&ctrl_ida, 0, 0, GFP_KERNEL);
if (id < 0) {
dev_err(parent,
"unable to allocate serdev controller identifier.\n");
serdev_controller_put(ctrl);
return NULL;
}
ctrl->nr = id;
dev_set_name(&ctrl->dev, "serial%d", id);
dev_dbg(&ctrl->dev, "allocated controller 0x%p id %d\n", ctrl, id);
return ctrl;
err_free:
kfree(ctrl);
return NULL;
}
EXPORT_SYMBOL_GPL(serdev_controller_alloc);
@ -385,6 +411,75 @@ static int of_serdev_register_devices(struct serdev_controller *ctrl)
return 0;
}
#ifdef CONFIG_ACPI
static acpi_status acpi_serdev_register_device(struct serdev_controller *ctrl,
struct acpi_device *adev)
{
struct serdev_device *serdev = NULL;
int err;
if (acpi_bus_get_status(adev) || !adev->status.present ||
acpi_device_enumerated(adev))
return AE_OK;
serdev = serdev_device_alloc(ctrl);
if (!serdev) {
dev_err(&ctrl->dev, "failed to allocate serdev device for %s\n",
dev_name(&adev->dev));
return AE_NO_MEMORY;
}
ACPI_COMPANION_SET(&serdev->dev, adev);
acpi_device_set_enumerated(adev);
err = serdev_device_add(serdev);
if (err) {
dev_err(&serdev->dev,
"failure adding ACPI serdev device. status %d\n", err);
serdev_device_put(serdev);
}
return AE_OK;
}
static acpi_status acpi_serdev_add_device(acpi_handle handle, u32 level,
void *data, void **return_value)
{
struct serdev_controller *ctrl = data;
struct acpi_device *adev;
if (acpi_bus_get_device(handle, &adev))
return AE_OK;
return acpi_serdev_register_device(ctrl, adev);
}
static int acpi_serdev_register_devices(struct serdev_controller *ctrl)
{
acpi_status status;
acpi_handle handle;
handle = ACPI_HANDLE(ctrl->dev.parent);
if (!handle)
return -ENODEV;
status = acpi_walk_namespace(ACPI_TYPE_DEVICE, handle, 1,
acpi_serdev_add_device, NULL, ctrl, NULL);
if (ACPI_FAILURE(status))
dev_dbg(&ctrl->dev, "failed to enumerate serdev slaves\n");
if (!ctrl->serdev)
return -ENODEV;
return 0;
}
#else
static inline int acpi_serdev_register_devices(struct serdev_controller *ctrl)
{
return -ENODEV;
}
#endif /* CONFIG_ACPI */
/**
* serdev_controller_add() - Add an serdev controller
* @ctrl: controller to be registered.
@ -394,7 +489,7 @@ static int of_serdev_register_devices(struct serdev_controller *ctrl)
*/
int serdev_controller_add(struct serdev_controller *ctrl)
{
int ret;
int ret_of, ret_acpi, ret;
/* Can't register until after driver model init */
if (WARN_ON(!is_registered))
@ -404,9 +499,14 @@ int serdev_controller_add(struct serdev_controller *ctrl)
if (ret)
return ret;
ret = of_serdev_register_devices(ctrl);
if (ret)
ret_of = of_serdev_register_devices(ctrl);
ret_acpi = acpi_serdev_register_devices(ctrl);
if (ret_of && ret_acpi) {
dev_dbg(&ctrl->dev, "no devices registered: of:%d acpi:%d\n",
ret_of, ret_acpi);
ret = -ENODEV;
goto out_dev_del;
}
dev_dbg(&ctrl->dev, "serdev%d registered: dev:%p\n",
ctrl->nr, &ctrl->dev);

31
drivers/tty/serdev/serdev-ttyport.c
View File

@ -1,14 +1,6 @@
// SPDX-License-Identifier: GPL-2.0
/*
* Copyright (C) 2016-2017 Linaro Ltd., Rob Herring <robh@kernel.org>
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License version 2 and
* only version 2 as published by the Free Software Foundation.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*/
#include <linux/kernel.h>
#include <linux/serdev.h>
@ -96,16 +88,21 @@ static int ttyport_open(struct serdev_controller *ctrl)
struct serport *serport = serdev_controller_get_drvdata(ctrl);
struct tty_struct *tty;
struct ktermios ktermios;
int ret;
tty = tty_init_dev(serport->tty_drv, serport->tty_idx);
if (IS_ERR(tty))
return PTR_ERR(tty);
serport->tty = tty;
if (tty->ops->open)
tty->ops->open(serport->tty, NULL);
else
tty_port_open(serport->port, tty, NULL);
if (!tty->ops->open || !tty->ops->close) {
ret = -ENODEV;
goto err_unlock;
}
ret = tty->ops->open(serport->tty, NULL);
if (ret)
goto err_close;
/* Bring the UART into a known 8 bits no parity hw fc state */
ktermios = tty->termios;
@ -122,6 +119,14 @@ static int ttyport_open(struct serdev_controller *ctrl)
tty_unlock(serport->tty);
return 0;
err_close:
tty->ops->close(tty, NULL);
err_unlock:
tty_unlock(tty);
tty_release_struct(tty, serport->tty_idx);
return ret;
}
static void ttyport_close(struct serdev_controller *ctrl)

1
drivers/tty/serial/21285.c
View File

@ -1,3 +1,4 @@
// SPDX-License-Identifier: GPL-2.0
/*
* Driver for the serial port on the 21285 StrongArm-110 core logic chip.
*

6
drivers/tty/serial/8250/8250.h
View File

@ -1,14 +1,10 @@
// SPDX-License-Identifier: GPL-2.0+
/*
* Driver for 8250/16550-type serial ports
*
* Based on drivers/char/serial.c, by Linus Torvalds, Theodore Ts'o.
*
* Copyright (C) 2001 Russell King.
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; either version 2 of the License, or
* (at your option) any later version.
*/
#include <linux/serial_8250.h>

5
drivers/tty/serial/8250/8250_accent.c
View File

@ -1,10 +1,7 @@
// SPDX-License-Identifier: GPL-2.0
/*
* Copyright (C) 2005 Russell King.
* Data taken from include/asm-i386/serial.h
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License version 2 as
* published by the Free Software Foundation.
*/
#include <linux/module.h>
#include <linux/init.h>

5
drivers/tty/serial/8250/8250_acorn.c
View File

@ -1,11 +1,8 @@
// SPDX-License-Identifier: GPL-2.0
/*
* linux/drivers/serial/acorn.c
*
* Copyright (C) 1996-2003 Russell King.
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License version 2 as
* published by the Free Software Foundation.
*/
#include <linux/module.h>
#include <linux/types.h>

6
drivers/tty/serial/8250/8250_aspeed_vuart.c
View File

@ -1,13 +1,9 @@
// SPDX-License-Identifier: GPL-2.0+
/*
* Serial Port driver for Aspeed VUART device
*
* Copyright (C) 2016 Jeremy Kerr <jk@ozlabs.org>, IBM Corp.
* Copyright (C) 2006 Arnd Bergmann <arnd@arndb.de>, IBM Corp.
*
* This program is free software; you can redistribute it and/or
* modify it under the terms of the GNU General Public License
* as published by the Free Software Foundation; either version
* 2 of the License, or (at your option) any later version.
*/
#include <linux/device.h>
#include <linux/module.h>

6
drivers/tty/serial/8250/8250_bcm2835aux.c
View File

@ -1,3 +1,4 @@
// SPDX-License-Identifier: GPL-2.0
/*
* Serial port driver for BCM2835AUX UART
*
@ -5,11 +6,6 @@
*
* Based on 8250_lpc18xx.c:
* Copyright (C) 2015 Joachim Eastwood <manabian@gmail.com>
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License version 2 as
* published by the Free Software Foundation.
*
*/
#include <linux/clk.h>

5
drivers/tty/serial/8250/8250_boca.c
View File

@ -1,10 +1,7 @@
// SPDX-License-Identifier: GPL-2.0
/*
* Copyright (C) 2005 Russell King.
* Data taken from include/asm-i386/serial.h
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License version 2 as
* published by the Free Software Foundation.
*/
#include <linux/module.h>
#include <linux/init.h>

23
drivers/tty/serial/8250/8250_core.c
View File

@ -1,3 +1,4 @@
// SPDX-License-Identifier: GPL-2.0+
/*
* Universal/legacy driver for 8250/16550-type serial ports
*
@ -11,11 +12,6 @@
* userspace-configurable "phantom" ports
* "serial8250" platform devices
* serial8250_register_8250_port() ports
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; either version 2 of the License, or
* (at your option) any later version.
*/
#include <linux/module.h>
@ -262,17 +258,17 @@ static void serial_unlink_irq_chain(struct uart_8250_port *up)
* barely passable results for a 16550A. (Although at the expense
* of much CPU overhead).
*/
static void serial8250_timeout(unsigned long data)
static void serial8250_timeout(struct timer_list *t)
{
struct uart_8250_port *up = (struct uart_8250_port *)data;
struct uart_8250_port *up = from_timer(up, t, timer);
up->port.handle_irq(&up->port);
mod_timer(&up->timer, jiffies + uart_poll_timeout(&up->port));
}
static void serial8250_backup_timeout(unsigned long data)
static void serial8250_backup_timeout(struct timer_list *t)
{
struct uart_8250_port *up = (struct uart_8250_port *)data;
struct uart_8250_port *up = from_timer(up, t, timer);
unsigned int iir, ier = 0, lsr;
unsigned long flags;
@ -329,8 +325,7 @@ static int univ8250_setup_irq(struct uart_8250_port *up)
if (up->bugs & UART_BUG_THRE) {
pr_debug("ttyS%d - using backup timer\n", serial_index(port));
up->timer.function = serial8250_backup_timeout;
up->timer.data = (unsigned long)up;
up->timer.function = (TIMER_FUNC_TYPE)serial8250_backup_timeout;
mod_timer(&up->timer, jiffies +
uart_poll_timeout(port) + HZ / 5);
}
@ -341,7 +336,6 @@ static int univ8250_setup_irq(struct uart_8250_port *up)
* driver used to do this with IRQ0.
*/
if (!port->irq) {
up->timer.data = (unsigned long)up;
mod_timer(&up->timer, jiffies + uart_poll_timeout(port));
} else
retval = serial_link_irq_chain(up);
@ -354,7 +348,7 @@ static void univ8250_release_irq(struct uart_8250_port *up)
struct uart_port *port = &up->port;
del_timer_sync(&up->timer);
up->timer.function = serial8250_timeout;
up->timer.function = (TIMER_FUNC_TYPE)serial8250_timeout;
if (port->irq)
serial_unlink_irq_chain(up);
}
@ -525,8 +519,7 @@ static void __init serial8250_isa_init_ports(void)
base_ops = port->ops;
port->ops = &univ8250_port_ops;
init_timer(&up->timer);
up->timer.function = serial8250_timeout;
timer_setup(&up->timer, serial8250_timeout, 0);
up->ops = &univ8250_driver_ops;

6
drivers/tty/serial/8250/8250_dma.c
View File

@ -1,12 +1,8 @@
// SPDX-License-Identifier: GPL-2.0+
/*
* 8250_dma.c - DMA Engine API support for 8250.c
*
* Copyright (C) 2013 Intel Corporation
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; either version 2 of the License, or
* (at your option) any later version.
*/
#include <linux/tty.h>
#include <linux/tty_flip.h>

36
drivers/tty/serial/8250/8250_dw.c
View File

@ -1,14 +1,10 @@
// SPDX-License-Identifier: GPL-2.0+
/*
* Synopsys DesignWare 8250 driver.
*
* Copyright 2011 Picochip, Jamie Iles.
* Copyright 2013 Intel Corporation
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; either version 2 of the License, or
* (at your option) any later version.
*
* The Synopsys DesignWare 8250 has an extra feature whereby it detects if the
* LCR is written whilst busy. If it is, then a busy detect interrupt is
* raised, the LCR needs to be rewritten and the uart status register read.
@ -256,25 +252,31 @@ static void dw8250_set_termios(struct uart_port *p, struct ktermios *termios,
struct ktermios *old)
{
unsigned int baud = tty_termios_baud_rate(termios);
unsigned int target_rate, min_rate, max_rate;
struct dw8250_data *d = p->private_data;
long rate;
int ret;
int i, ret;
if (IS_ERR(d->clk) || !old)
goto out;
clk_disable_unprepare(d->clk);
rate = clk_round_rate(d->clk, baud * 16);
if (rate < 0)
ret = rate;
else if (rate == 0)
ret = -ENOENT;
else
ret = clk_set_rate(d->clk, rate);
clk_prepare_enable(d->clk);
/* Find a clk rate within +/-1.6% of an integer multiple of baudx16 */
target_rate = baud * 16;
min_rate = target_rate - (target_rate >> 6);
max_rate = target_rate + (target_rate >> 6);
if (!ret)
p->uartclk = rate;
for (i = 1; i <= UART_DIV_MAX; i++) {
rate = clk_round_rate(d->clk, i * target_rate);
if (rate >= i * min_rate && rate <= i * max_rate)
break;
}
if (i <= UART_DIV_MAX) {
clk_disable_unprepare(d->clk);
ret = clk_set_rate(d->clk, rate);
clk_prepare_enable(d->clk);
if (!ret)
p->uartclk = rate;
}
out:
p->status &= ~UPSTAT_AUTOCTS;

5
drivers/tty/serial/8250/8250_early.c
View File

@ -1,13 +1,10 @@
// SPDX-License-Identifier: GPL-2.0
/*
* Early serial console for 8250/16550 devices
*
* (c) Copyright 2004 Hewlett-Packard Development Company, L.P.
* Bjorn Helgaas <bjorn.helgaas@hp.com>
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License version 2 as
* published by the Free Software Foundation.
*
* Based on the 8250.c serial driver, Copyright (C) 2001 Russell King,
* and on early_printk.c by Andi Kleen.
*

14
drivers/tty/serial/8250/8250_em.c
View File

@ -1,20 +1,8 @@
// SPDX-License-Identifier: GPL-2.0
/*
* Renesas Emma Mobile 8250 driver
*
* Copyright (C) 2012 Magnus Damm
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; either version 2 of the License
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software
* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
*/
#include <linux/device.h>

5
drivers/tty/serial/8250/8250_exar.c
View File

@ -1,13 +1,10 @@
// SPDX-License-Identifier: GPL-2.0
/*
* Probe module for 8250/16550-type Exar chips PCI serial ports.
*
* Based on drivers/tty/serial/8250/8250_pci.c,
*
* Copyright (C) 2017 Sudip Mukherjee, All Rights Reserved.
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; either version 2 of the License.
*/
#include <linux/acpi.h>
#include <linux/dmi.h>

5
drivers/tty/serial/8250/8250_exar_st16c554.c
View File

@ -1,13 +1,10 @@
// SPDX-License-Identifier: GPL-2.0
/*
* Written by Paul B Schroeder < pschroeder "at" uplogix "dot" com >
* Based on 8250_boca.
*
* Copyright (C) 2005 Russell King.
* Data taken from include/asm-i386/serial.h
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License version 2 as
* published by the Free Software Foundation.
*/
#include <linux/module.h>
#include <linux/init.h>

123
drivers/tty/serial/8250/8250_fintek.c
View File

@ -1,12 +1,8 @@
// SPDX-License-Identifier: GPL-2.0
/*
* Probe for F81216A LPC to 4 UART
*
* Copyright (C) 2014-2016 Ricardo Ribalda, Qtechnology A/S
*
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; either version 2 of the License.
*/
#include <linux/module.h>
#include <linux/pci.h>
@ -40,6 +36,16 @@
#define IRQ_LEVEL_LOW 0
#define IRQ_EDGE_HIGH BIT(5)
/*
* F81216H clock source register, the value and mask is the same with F81866,
* but it's on F0h.
*
* Clock speeds for UART (register F0h)
* 00: 1.8432MHz.
* 01: 18.432MHz.
* 10: 24MHz.
* 11: 14.769MHz.
*/
#define RS485 0xF0
#define RTS_INVERT BIT(5)
#define RS485_URA BIT(4)
@ -118,6 +124,9 @@ static int fintek_8250_enter_key(u16 base_port, u8 key)
if (!request_muxed_region(base_port, 2, "8250_fintek"))
return -EBUSY;
/* Force to deactive all SuperIO in this base_port */
outb(EXIT_KEY, base_port + ADDR_PORT);
outb(key, base_port + ADDR_PORT);
outb(key, base_port + ADDR_PORT);
return 0;
@ -188,14 +197,27 @@ static int fintek_8250_rs485_config(struct uart_port *port,
if (!pdata)
return -EINVAL;
if (rs485->flags & SER_RS485_ENABLED)
/* Hardware do not support same RTS level on send and receive */
if (!(rs485->flags & SER_RS485_RTS_ON_SEND) ==
!(rs485->flags & SER_RS485_RTS_AFTER_SEND))
return -EINVAL;
if (rs485->flags & SER_RS485_ENABLED) {
memset(rs485->padding, 0, sizeof(rs485->padding));
else
config |= RS485_URA;
} else {
memset(rs485, 0, sizeof(*rs485));
}
rs485->flags &= SER_RS485_ENABLED | SER_RS485_RTS_ON_SEND |
SER_RS485_RTS_AFTER_SEND;
/* Only the first port supports delays */
if (pdata->index) {
rs485->delay_rts_before_send = 0;
rs485->delay_rts_after_send = 0;
}
if (rs485->delay_rts_before_send) {
rs485->delay_rts_before_send = 1;
config |= TXW4C_IRA;
@ -206,12 +228,6 @@ static int fintek_8250_rs485_config(struct uart_port *port,
config |= RXW4C_IRA;
}
if ((!!(rs485->flags & SER_RS485_RTS_ON_SEND)) ==
(!!(rs485->flags & SER_RS485_RTS_AFTER_SEND)))
rs485->flags &= SER_RS485_ENABLED;
else
config |= RS485_URA;
if (rs485->flags & SER_RS485_RTS_ON_SEND)
config |= RTS_INVERT;
@ -280,13 +296,91 @@ static void fintek_8250_goto_highspeed(struct uart_8250_port *uart,
F81866_UART_CLK_MASK,
F81866_UART_CLK_14_769MHZ);
uart->port.uartclk = 921600 * 16;
uart->port.uartclk = 921600 * 16;
break;
default: /* leave clock speed untouched */
break;
}
}
void fintek_8250_set_termios(struct uart_port *port, struct ktermios *termios,
struct ktermios *old)
{
struct fintek_8250 *pdata = port->private_data;
unsigned int baud = tty_termios_baud_rate(termios);
int i;
u8 reg;
static u32 baudrate_table[] = {115200, 921600, 1152000, 1500000};
static u8 clock_table[] = { F81866_UART_CLK_1_8432MHZ,
F81866_UART_CLK_14_769MHZ, F81866_UART_CLK_18_432MHZ,
F81866_UART_CLK_24MHZ };
/*
* We'll use serial8250_do_set_termios() for baud = 0, otherwise It'll
* crash on baudrate_table[i] % baud with "division by zero".
*/
if (!baud)
goto exit;
switch (pdata->pid) {
case CHIP_ID_F81216H:
reg = RS485;
break;
case CHIP_ID_F81866:
reg = F81866_UART_CLK;
break;
default:
/* Don't change clocksource with unknown PID */
dev_warn(port->dev,
"%s: pid: %x Not support. use default set_termios.\n",
__func__, pdata->pid);
goto exit;
}
for (i = 0; i < ARRAY_SIZE(baudrate_table); ++i) {
if (baud > baudrate_table[i] || baudrate_table[i] % baud != 0)
continue;
if (port->uartclk == baudrate_table[i] * 16)
break;
if (fintek_8250_enter_key(pdata->base_port, pdata->key))
continue;
port->uartclk = baudrate_table[i] * 16;
sio_write_reg(pdata, LDN, pdata->index);
sio_write_mask_reg(pdata, reg, F81866_UART_CLK_MASK,
clock_table[i]);
fintek_8250_exit_key(pdata->base_port);
break;
}
if (i == ARRAY_SIZE(baudrate_table)) {
baud = tty_termios_baud_rate(old);
tty_termios_encode_baud_rate(termios, baud, baud);
}
exit:
serial8250_do_set_termios(port, termios, old);
}
static void fintek_8250_set_termios_handler(struct uart_8250_port *uart)
{
struct fintek_8250 *pdata = uart->port.private_data;
switch (pdata->pid) {
case CHIP_ID_F81216H:
case CHIP_ID_F81866:
uart->port.set_termios = fintek_8250_set_termios;
break;
default:
break;
}
}
static int probe_setup_port(struct fintek_8250 *pdata,
struct uart_8250_port *uart)
{
@ -373,6 +467,7 @@ int fintek_8250_probe(struct uart_8250_port *uart)
memcpy(pdata, &probe_data, sizeof(probe_data));
uart->port.private_data = pdata;
fintek_8250_set_rs485_handler(uart);
fintek_8250_set_termios_handler(uart);
return 0;
}

5
drivers/tty/serial/8250/8250_fourport.c
View File

@ -1,10 +1,7 @@
// SPDX-License-Identifier: GPL-2.0
/*
* Copyright (C) 2005 Russell King.
* Data taken from include/asm-i386/serial.h
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License version 2 as
* published by the Free Software Foundation.
*/
#include <linux/module.h>
#include <linux/init.h>

5
drivers/tty/serial/8250/8250_fsl.c
View File

@ -1,3 +1,4 @@
// SPDX-License-Identifier: GPL-2.0
#include <linux/serial_reg.h>
#include <linux/serial_8250.h>
@ -6,10 +7,6 @@
/*
* Freescale 16550 UART "driver", Copyright (C) 2011 Paul Gortmaker.
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License version 2 as
* published by the Free Software Foundation.
*
* This isn't a full driver; it just provides an alternate IRQ
* handler to deal with an errata. Everything else is just
* using the bog standard 8250 support.

6
drivers/tty/serial/8250/8250_gsc.c
View File

@ -1,12 +1,8 @@
// SPDX-License-Identifier: GPL-2.0+
/*
* Serial Device Initialisation for Lasi/Asp/Wax/Dino
*
* (c) Copyright Matthew Wilcox <willy@debian.org> 2001-2002
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; either version 2 of the License, or
* (at your option) any later version.
*/
#include <linux/errno.h>

1
drivers/tty/serial/8250/8250_hp300.c
View File

@ -1,3 +1,4 @@
// SPDX-License-Identifier: GPL-2.0
/*
* Driver for the 98626/98644/internal serial interface on hp300/hp400
* (based on the National Semiconductor INS8250/NS16550AF/WD16C552 UARTs)

5
drivers/tty/serial/8250/8250_hub6.c
View File

@ -1,10 +1,7 @@
// SPDX-License-Identifier: GPL-2.0
/*
* Copyright (C) 2005 Russell King.
* Data taken from include/asm-i386/serial.h
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License version 2 as
* published by the Free Software Foundation.
*/
#include <linux/module.h>
#include <linux/init.h>

10
drivers/tty/serial/8250/8250_ingenic.c
View File

@ -1,17 +1,9 @@
// SPDX-License-Identifier: GPL-2.0+
/*
* Copyright (C) 2010 Lars-Peter Clausen <lars@metafoo.de>
* Copyright (C) 2015 Imagination Technologies
*
* Ingenic SoC UART support
*
* This program is free software; you can redistribute it and/or modify it
* under the terms of the GNU General Public License as published by the
* Free Software Foundation; either version 2 of the License, or (at your
* option) any later version.
*
* You should have received a copy of the GNU General Public License along
* with this program; if not, write to the Free Software Foundation, Inc.,
* 675 Mass Ave, Cambridge, MA 02139, USA.
*/
#include <linux/clk.h>

6
drivers/tty/serial/8250/8250_lpc18xx.c
View File

@ -1,3 +1,4 @@
// SPDX-License-Identifier: GPL-2.0
/*
* Serial port driver for NXP LPC18xx/43xx UART
*
@ -6,11 +7,6 @@
* Based on 8250_mtk.c:
* Copyright (c) 2014 MundoReader S.L.
* Matthias Brugger <matthias.bgg@gmail.com>
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License version 2 as
* published by the Free Software Foundation.
*
*/
#include <linux/clk.h>

5
drivers/tty/serial/8250/8250_lpss.c
View File

@ -1,12 +1,9 @@
// SPDX-License-Identifier: GPL-2.0
/*
* 8250_lpss.c - Driver for UART on Intel Braswell and various other Intel SoCs
*
* Copyright (C) 2016 Intel Corporation
* Author: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License version 2 as
* published by the Free Software Foundation.
*/
#include <linux/bitops.h>

11
drivers/tty/serial/8250/8250_mid.c
View File

@ -1,12 +1,9 @@
// SPDX-License-Identifier: GPL-2.0
/*
* 8250_mid.c - Driver for UART on Intel Penwell and various other Intel SOCs
*
* Copyright (C) 2015 Intel Corporation
* Author: Heikki Krogerus <heikki.krogerus@linux.intel.com>
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License version 2 as
* published by the Free Software Foundation.
*/
#include <linux/bitops.h>
@ -23,10 +20,11 @@
#define PCI_DEVICE_ID_INTEL_PNW_UART2 0x081c
#define PCI_DEVICE_ID_INTEL_PNW_UART3 0x081d
#define PCI_DEVICE_ID_INTEL_TNG_UART 0x1191
#define PCI_DEVICE_ID_INTEL_CDF_UART 0x18d8
#define PCI_DEVICE_ID_INTEL_DNV_UART 0x19d8
/* Intel MID Specific registers */
#define INTEL_MID_UART_DNV_FISR 0x08
#define INTEL_MID_UART_FISR 0x08
#define INTEL_MID_UART_PS 0x30
#define INTEL_MID_UART_MUL 0x34
#define INTEL_MID_UART_DIV 0x38
@ -130,7 +128,7 @@ static int dnv_handle_irq(struct uart_port *p)
{
struct mid8250 *mid = p->private_data;
struct uart_8250_port *up = up_to_u8250p(p);
unsigned int fisr = serial_port_in(p, INTEL_MID_UART_DNV_FISR);
unsigned int fisr = serial_port_in(p, INTEL_MID_UART_FISR);
u32 status;
int ret = 0;
int err;
@ -377,6 +375,7 @@ static const struct pci_device_id pci_ids[] = {
MID_DEVICE(PCI_DEVICE_ID_INTEL_PNW_UART2, pnw_board),
MID_DEVICE(PCI_DEVICE_ID_INTEL_PNW_UART3, pnw_board),
MID_DEVICE(PCI_DEVICE_ID_INTEL_TNG_UART, tng_board),
MID_DEVICE(PCI_DEVICE_ID_INTEL_CDF_UART, dnv_board),
MID_DEVICE(PCI_DEVICE_ID_INTEL_DNV_UART, dnv_board),
{ },
};

5
drivers/tty/serial/8250/8250_moxa.c
View File

@ -1,11 +1,8 @@
// SPDX-License-Identifier: GPL-2.0
/*
* 8250_moxa.c - MOXA Smartio/Industio MUE multiport serial driver.
*
* Author: Mathieu OTHACEHE <m.othacehe@gmail.com>
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License version 2 as
* published by the Free Software Foundation.
*/
#include <linux/module.h>

13
drivers/tty/serial/8250/8250_mtk.c
View File

@ -1,18 +1,9 @@
// SPDX-License-Identifier: GPL-2.0+
/*
* Mediatek 8250 driver.
*
* Copyright (c) 2014 MundoReader S.L.
* Author: Matthias Brugger <matthias.bgg@gmail.com>
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; either version 2 of the License, or
* (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*/
#include <linux/clk.h>
#include <linux/io.h>
@ -61,7 +52,7 @@ mtk8250_set_termios(struct uart_port *port, struct ktermios *termios,
* registers to their default values.
*/
baud = uart_get_baud_rate(port, termios, old,
port->uartclk / 16 / 0xffff,
port->uartclk / 16 / UART_DIV_MAX,
port->uartclk);
if (baud <= 115200) {

7
drivers/tty/serial/8250/8250_of.c
View File

@ -1,13 +1,8 @@
// SPDX-License-Identifier: GPL-2.0+
/*
* Serial Port driver for Open Firmware platform devices
*
* Copyright (C) 2006 Arnd Bergmann <arnd@arndb.de>, IBM Corp.
*
* This program is free software; you can redistribute it and/or
* modify it under the terms of the GNU General Public License
* as published by the Free Software Foundation; either version
* 2 of the License, or (at your option) any later version.
*
*/
#include <linux/console.h>
#include <linux/module.h>

5
drivers/tty/serial/8250/8250_omap.c
View File

@ -1,3 +1,4 @@
// SPDX-License-Identifier: GPL-2.0
/*
* 8250-core based driver for the OMAP internal UART
*
@ -199,7 +200,7 @@ static void omap_8250_get_divisor(struct uart_port *port, unsigned int baud,
* Old custom speed handling.
*/
if (baud == 38400 && (port->flags & UPF_SPD_MASK) == UPF_SPD_CUST) {
priv->quot = port->custom_divisor & 0xffff;
priv->quot = port->custom_divisor & UART_DIV_MAX;
/*
* I assume that nobody is using this. But hey, if somebody
* would like to specify the divisor _and_ the mode then the
@ -358,7 +359,7 @@ static void omap_8250_set_termios(struct uart_port *port,
* Ask the core to calculate the divisor for us.
*/
baud = uart_get_baud_rate(port, termios, old,
port->uartclk / 16 / 0xffff,
port->uartclk / 16 / UART_DIV_MAX,
port->uartclk / 13);
omap_8250_get_divisor(port, baud, priv);

6
drivers/tty/serial/8250/8250_pci.c
View File

@ -1,13 +1,10 @@
// SPDX-License-Identifier: GPL-2.0
/*
* Probe module for 8250/16550-type PCI serial ports.
*
* Based on drivers/char/serial.c, by Linus Torvalds, Theodore Ts'o.
*
* Copyright (C) 2001 Russell King, All Rights Reserved.
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; either version 2 of the License.
*/
#undef DEBUG
#include <linux/module.h>
@ -3368,6 +3365,7 @@ static const struct pci_device_id blacklist[] = {
{ PCI_VDEVICE(INTEL, 0x081c), },
{ PCI_VDEVICE(INTEL, 0x081d), },
{ PCI_VDEVICE(INTEL, 0x1191), },
{ PCI_VDEVICE(INTEL, 0x18d8), },
{ PCI_VDEVICE(INTEL, 0x19d8), },
/* Intel platforms with DesignWare UART */

5
drivers/tty/serial/8250/8250_pnp.c
View File

@ -1,3 +1,4 @@
// SPDX-License-Identifier: GPL-2.0
/*
* Probe for 8250/16550-type ISAPNP serial ports.
*
@ -6,10 +7,6 @@
* Copyright (C) 2001 Russell King, All Rights Reserved.
*
* Ported to the Linux PnP Layer - (C) Adam Belay.
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; either version 2 of the License.
*/
#include <linux/module.h>
#include <linux/pci.h>

16
drivers/tty/serial/8250/8250_port.c
View File

@ -1,14 +1,10 @@
// SPDX-License-Identifier: GPL-2.0+
/*
* Base port operations for 8250/16550-type serial ports
*
* Based on drivers/char/serial.c, by Linus Torvalds, Theodore Ts'o.
* Split from 8250_core.c, Copyright (C) 2001 Russell King.
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; either version 2 of the License, or
* (at your option) any later version.
*
* A note about mapbase / membase
*
* mapbase is the physical address of the IO port.
@ -1516,7 +1512,6 @@ static inline void __stop_tx(struct uart_8250_port *p)
return;
em485->active_timer = NULL;
hrtimer_cancel(&em485->start_tx_timer);
__stop_tx_rs485(p);
}
@ -1580,8 +1575,6 @@ static inline void start_tx_rs485(struct uart_port *port)
serial8250_stop_rx(&up->port);
em485->active_timer = NULL;
if (hrtimer_is_queued(&em485->stop_tx_timer))
hrtimer_cancel(&em485->stop_tx_timer);
mcr = serial8250_in_MCR(up);
if (!!(up->port.rs485.flags & SER_RS485_RTS_ON_SEND) !=
@ -2586,8 +2579,11 @@ static void serial8250_set_divisor(struct uart_port *port, unsigned int baud,
serial_dl_write(up, quot);
/* XR17V35x UARTs have an extra fractional divisor register (DLD) */
if (up->port.type == PORT_XR17V35X)
if (up->port.type == PORT_XR17V35X) {
/* Preserve bits not related to baudrate; DLD[7:4]. */
quot_frac |= serial_port_in(port, 0x2) & 0xf0;
serial_port_out(port, 0x2, quot_frac);
}
}
static unsigned int serial8250_get_baud_rate(struct uart_port *port,
@ -2601,7 +2597,7 @@ static unsigned int serial8250_get_baud_rate(struct uart_port *port,
* causing transmission errors.
*/
return uart_get_baud_rate(port, termios, old,
port->uartclk / 16 / 0xffff,
port->uartclk / 16 / UART_DIV_MAX,
port->uartclk);
}

7
drivers/tty/serial/8250/8250_pxa.c
View File

@ -1,3 +1,4 @@
// SPDX-License-Identifier: GPL-2.0+
/*
* drivers/tty/serial/8250/8250_pxa.c -- driver for PXA on-board UARTS
* Copyright: (C) 2013 Sergei Ianovich <ynvich@gmail.com>
@ -7,12 +8,6 @@
* Copyright: (C) 2003 Monta Vista Software, Inc.
*
* Based on drivers/serial/8250.c by Russell King.
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; either version 2 of the License, or
* (at your option) any later version.
*
*/
#include <linux/device.h>

11
drivers/tty/serial/8250/8250_uniphier.c
View File

@ -1,15 +1,6 @@
// SPDX-License-Identifier: GPL-2.0+
/*
* Copyright (C) 2015 Masahiro Yamada <yamada.masahiro@socionext.com>
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; either version 2 of the License, or
* (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*/
#include <linux/clk.h>

1
drivers/tty/serial/8250/serial_cs.c
View File

@ -1,3 +1,4 @@
// SPDX-License-Identifier: (GPL-2.0 OR MPL-1.1)
/*======================================================================
A driver for PCMCIA serial devices

6
drivers/tty/serial/altera_jtaguart.c
View File

@ -1,3 +1,4 @@
// SPDX-License-Identifier: GPL-2.0+
/*
* altera_jtaguart.c -- Altera JTAG UART driver
*
@ -6,11 +7,6 @@
* (C) Copyright 2003-2007, Greg Ungerer <gerg@snapgear.com>
* (C) Copyright 2008, Thomas Chou <thomas@wytron.com.tw>
* (C) Copyright 2010, Tobias Klauser <tklauser@distanz.ch>
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; either version 2 of the License, or
* (at your option) any later version.
*/
#include <linux/kernel.h>

14
drivers/tty/serial/altera_uart.c
View File

@ -1,3 +1,4 @@
// SPDX-License-Identifier: GPL-2.0+
/*
* altera_uart.c -- Altera UART driver
*
@ -6,11 +7,6 @@
* (C) Copyright 2003-2007, Greg Ungerer <gerg@snapgear.com>
* (C) Copyright 2008, Thomas Chou <thomas@wytron.com.tw>
* (C) Copyright 2010, Tobias Klauser <tklauser@distanz.ch>
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; either version 2 of the License, or
* (at your option) any later version.
*/
#include <linux/kernel.h>
@ -288,10 +284,10 @@ static irqreturn_t altera_uart_interrupt(int irq, void *data)
return IRQ_RETVAL(isr);
}
static void altera_uart_timer(unsigned long data)
static void altera_uart_timer(struct timer_list *t)
{
struct uart_port *port = (void *)data;
struct altera_uart *pp = container_of(port, struct altera_uart, port);
struct altera_uart *pp = from_timer(pp, t, tmr);
struct uart_port *port = &pp->port;
altera_uart_interrupt(0, port);
mod_timer(&pp->tmr, jiffies + uart_poll_timeout(port));
@ -314,7 +310,7 @@ static int altera_uart_startup(struct uart_port *port)
int ret;
if (!port->irq) {
setup_timer(&pp->tmr, altera_uart_timer, (unsigned long)port);
timer_setup(&pp->tmr, altera_uart_timer, 0);
mod_timer(&pp->tmr, jiffies + uart_poll_timeout(port));
return 0;
}

15
drivers/tty/serial/amba-pl010.c
View File

@ -1,3 +1,4 @@
// SPDX-License-Identifier: GPL-2.0+
/*
* Driver for AMBA serial ports
*
@ -6,20 +7,6 @@
* Copyright 1999 ARM Limited
* Copyright (C) 2000 Deep Blue Solutions Ltd.
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; either version 2 of the License, or
* (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software
* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
*
* This is a generic driver for ARM AMBA-type serial ports. They
* have a lot of 16550-like features, but are not register compatible.
* Note that although they do have CTS, DCD and DSR inputs, they do

32
drivers/tty/serial/amba-pl011.c
View File

@ -1,3 +1,4 @@
// SPDX-License-Identifier: GPL-2.0+
/*
* Driver for AMBA serial ports
*
@ -7,20 +8,6 @@
* Copyright (C) 2000 Deep Blue Solutions Ltd.
* Copyright (C) 2010 ST-Ericsson SA
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; either version 2 of the License, or
* (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software
* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
*
* This is a generic driver for ARM AMBA-type serial ports. They
* have a lot of 16550-like features, but are not register compatible.
* Note that although they do have CTS, DCD and DSR inputs, they do
@ -281,7 +268,6 @@ struct uart_amba_port {
unsigned int old_status;
unsigned int fifosize; /* vendor-specific */
unsigned int old_cr; /* state during shutdown */
bool autorts;
unsigned int fixed_baud; /* vendor-set fixed baud rate */
char type[12];
#ifdef CONFIG_DMA_ENGINE
@ -1078,9 +1064,9 @@ static inline void pl011_dma_rx_stop(struct uart_amba_port *uap)
* Every polling, It checks the residue in the dma buffer and transfer
* data to the tty. Also, last_residue is updated for the next polling.
*/
static void pl011_dma_rx_poll(unsigned long args)
static void pl011_dma_rx_poll(struct timer_list *t)
{
struct uart_amba_port *uap = (struct uart_amba_port *)args;
struct uart_amba_port *uap = from_timer(uap, t, dmarx.timer);
struct tty_port *port = &uap->port.state->port;
struct pl011_dmarx_data *dmarx = &uap->dmarx;
struct dma_chan *rxchan = uap->dmarx.chan;
@ -1192,9 +1178,7 @@ skip_rx:
dev_dbg(uap->port.dev, "could not trigger initial "
"RX DMA job, fall back to interrupt mode\n");
if (uap->dmarx.poll_rate) {
init_timer(&(uap->dmarx.timer));
uap->dmarx.timer.function = pl011_dma_rx_poll;
uap->dmarx.timer.data = (unsigned long)uap;
timer_setup(&uap->dmarx.timer, pl011_dma_rx_poll, 0);
mod_timer(&uap->dmarx.timer,
jiffies +
msecs_to_jiffies(uap->dmarx.poll_rate));
@ -1588,7 +1572,7 @@ static void pl011_set_mctrl(struct uart_port *port, unsigned int mctrl)
TIOCMBIT(TIOCM_OUT2, UART011_CR_OUT2);
TIOCMBIT(TIOCM_LOOP, UART011_CR_LBE);
if (uap->autorts) {
if (port->status & UPSTAT_AUTORTS) {
/* We need to disable auto-RTS if we want to turn RTS off */
TIOCMBIT(TIOCM_RTS, UART011_CR_RTSEN);
}
@ -1842,7 +1826,7 @@ static void pl011_disable_uart(struct uart_amba_port *uap)
{
unsigned int cr;
uap->autorts = false;
uap->port.status &= ~(UPSTAT_AUTOCTS | UPSTAT_AUTORTS);
spin_lock_irq(&uap->port.lock);
cr = pl011_read(uap, REG_CR);
uap->old_cr = cr;
@ -2028,10 +2012,10 @@ pl011_set_termios(struct uart_port *port, struct ktermios *termios,
old_cr |= UART011_CR_RTSEN;
old_cr |= UART011_CR_CTSEN;
uap->autorts = true;
port->status |= UPSTAT_AUTOCTS | UPSTAT_AUTORTS;
} else {
old_cr &= ~(UART011_CR_CTSEN | UART011_CR_RTSEN);
uap->autorts = false;
port->status &= ~(UPSTAT_AUTOCTS | UPSTAT_AUTORTS);
}
if (uap->vendor->oversampling) {

1
drivers/tty/serial/apbuart.c
View File

@ -1,3 +1,4 @@
// SPDX-License-Identifier: GPL-2.0
/*
* Driver for GRLIB serial ports (APBUART)
*

5
drivers/tty/serial/ar933x_uart.c
View File

@ -1,13 +1,10 @@
// SPDX-License-Identifier: GPL-2.0
/*
* Atheros AR933X SoC built-in UART driver
*
* Copyright (C) 2011 Gabor Juhos <juhosg@openwrt.org>
*
* Based on drivers/char/serial.c, by Linus Torvalds, Theodore Ts'o.
*
* This program is free software; you can redistribute it and/or modify it
* under the terms of the GNU General Public License version 2 as published
* by the Free Software Foundation.
*/
#include <linux/module.h>

5
drivers/tty/serial/arc_uart.c
View File

@ -1,12 +1,9 @@
// SPDX-License-Identifier: GPL-2.0
/*
* ARC On-Chip(fpga) UART Driver
*
* Copyright (C) 2010-2012 Synopsys, Inc. (www.synopsys.com)
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License version 2 as
* published by the Free Software Foundation.
*
* vineetg: July 10th 2012
* -Decoupled the driver from arch/arc
* +Using platform_get_resource() for irq/membase (thx to bfin_uart.c)

65
drivers/tty/serial/atmel_serial.c
View File

@ -1,3 +1,4 @@
// SPDX-License-Identifier: GPL-2.0+
/*
* Driver for Atmel AT91 Serial ports
* Copyright (C) 2003 Rick Bronson
@ -6,21 +7,6 @@
* Based on drivers/char/serial.c, by Linus Torvalds, Theodore Ts'o.
*
* DMA support added by Chip Coldwell.
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; either version 2 of the License, or
* (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software
* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
*
*/
#include <linux/tty.h>
#include <linux/ioport.h>
@ -171,6 +157,7 @@ struct atmel_uart_port {
bool has_hw_timer;
struct timer_list uart_timer;
bool tx_stopped;
bool suspended;
unsigned int pending;
unsigned int pending_status;
@ -380,6 +367,10 @@ static int atmel_config_rs485(struct uart_port *port,
*/
static u_int atmel_tx_empty(struct uart_port *port)
{
struct atmel_uart_port *atmel_port = to_atmel_uart_port(port);
if (atmel_port->tx_stopped)
return TIOCSER_TEMT;
return (atmel_uart_readl(port, ATMEL_US_CSR) & ATMEL_US_TXEMPTY) ?
TIOCSER_TEMT :
0;
@ -485,6 +476,7 @@ static void atmel_stop_tx(struct uart_port *port)
* is fully transmitted.
*/
atmel_uart_writel(port, ATMEL_US_CR, ATMEL_US_TXDIS);
atmel_port->tx_stopped = true;
/* Disable interrupts */
atmel_uart_writel(port, ATMEL_US_IDR, atmel_port->tx_done_mask);
@ -521,6 +513,7 @@ static void atmel_start_tx(struct uart_port *port)
/* re-enable the transmitter */
atmel_uart_writel(port, ATMEL_US_CR, ATMEL_US_TXEN);
atmel_port->tx_stopped = false;
}
/*
@ -1178,10 +1171,11 @@ chan_err:
return -EINVAL;
}
static void atmel_uart_timer_callback(unsigned long data)
static void atmel_uart_timer_callback(struct timer_list *t)
{
struct uart_port *port = (void *)data;
struct atmel_uart_port *atmel_port = to_atmel_uart_port(port);
struct atmel_uart_port *atmel_port = from_timer(atmel_port, t,
uart_timer);
struct uart_port *port = &atmel_port->uart;
if (!atomic_read(&atmel_port->tasklet_shutdown)) {
tasklet_schedule(&atmel_port->tasklet_rx);
@ -1667,29 +1661,6 @@ static void atmel_init_property(struct atmel_uart_port *atmel_port,
}
}
static void atmel_init_rs485(struct uart_port *port,
struct platform_device *pdev)
{
struct device_node *np = pdev->dev.of_node;
struct serial_rs485 *rs485conf = &port->rs485;
u32 rs485_delay[2];
/* rs485 properties */
if (of_property_read_u32_array(np, "rs485-rts-delay",
rs485_delay, 2) == 0) {
rs485conf->delay_rts_before_send = rs485_delay[0];
rs485conf->delay_rts_after_send = rs485_delay[1];
rs485conf->flags = 0;
}
if (of_get_property(np, "rs485-rx-during-tx", NULL))
rs485conf->flags |= SER_RS485_RX_DURING_TX;
if (of_get_property(np, "linux,rs485-enabled-at-boot-time", NULL))
rs485conf->flags |= SER_RS485_ENABLED;
}
static void atmel_set_ops(struct uart_port *port)
{
struct atmel_uart_port *atmel_port = to_atmel_uart_port(port);
@ -1866,10 +1837,9 @@ static int atmel_startup(struct uart_port *port)
atmel_uart_writel(port, ATMEL_US_CR, ATMEL_US_RSTSTA | ATMEL_US_RSTRX);
/* enable xmit & rcvr */
atmel_uart_writel(port, ATMEL_US_CR, ATMEL_US_TXEN | ATMEL_US_RXEN);
atmel_port->tx_stopped = false;
setup_timer(&atmel_port->uart_timer,
atmel_uart_timer_callback,
(unsigned long)port);
timer_setup(&atmel_port->uart_timer, atmel_uart_timer_callback, 0);
if (atmel_use_pdc_rx(port)) {
/* set UART timeout */
@ -2122,6 +2092,7 @@ static void atmel_set_termios(struct uart_port *port, struct ktermios *termios,
/* disable receiver and transmitter */
atmel_uart_writel(port, ATMEL_US_CR, ATMEL_US_TXDIS | ATMEL_US_RXDIS);
atmel_port->tx_stopped = true;
/* mode */
if (port->rs485.flags & SER_RS485_ENABLED) {
@ -2207,6 +2178,7 @@ static void atmel_set_termios(struct uart_port *port, struct ktermios *termios,
atmel_uart_writel(port, ATMEL_US_BRGR, quot);
atmel_uart_writel(port, ATMEL_US_CR, ATMEL_US_RSTSTA | ATMEL_US_RSTRX);
atmel_uart_writel(port, ATMEL_US_CR, ATMEL_US_TXEN | ATMEL_US_RXEN);
atmel_port->tx_stopped = false;
/* restore interrupts */
atmel_uart_writel(port, ATMEL_US_IER, imr);
@ -2373,7 +2345,7 @@ static int atmel_init_port(struct atmel_uart_port *atmel_port,
atmel_init_property(atmel_port, pdev);
atmel_set_ops(port);
atmel_init_rs485(port, pdev);
of_get_rs485_mode(pdev->dev.of_node, &port->rs485);
port->iotype = UPIO_MEM;
port->flags = UPF_BOOT_AUTOCONF | UPF_IOREMAP;
@ -2450,6 +2422,7 @@ static void atmel_console_write(struct console *co, const char *s, u_int count)
/* Make sure that tx path is actually able to send characters */
atmel_uart_writel(port, ATMEL_US_CR, ATMEL_US_TXEN);
atmel_port->tx_stopped = false;
uart_console_write(port, s, count, atmel_console_putchar);
@ -2511,6 +2484,7 @@ static int __init atmel_console_setup(struct console *co, char *options)
{
int ret;
struct uart_port *port = &atmel_ports[co->index].uart;
struct atmel_uart_port *atmel_port = to_atmel_uart_port(port);
int baud = 115200;
int bits = 8;
int parity = 'n';
@ -2528,6 +2502,7 @@ static int __init atmel_console_setup(struct console *co, char *options)
atmel_uart_writel(port, ATMEL_US_IDR, -1);
atmel_uart_writel(port, ATMEL_US_CR, ATMEL_US_RSTSTA | ATMEL_US_RSTRX);
atmel_uart_writel(port, ATMEL_US_CR, ATMEL_US_TXEN | ATMEL_US_RXEN);
atmel_port->tx_stopped = false;
if (options)
uart_parse_options(options, &baud, &parity, &bits, &flow);

6
drivers/tty/serial/atmel_serial.h
View File

@ -1,3 +1,4 @@
// SPDX-License-Identifier: GPL-2.0+
/*
* include/linux/atmel_serial.h
*
@ -6,11 +7,6 @@
*
* USART registers.
* Based on AT91RM9200 datasheet revision E.
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; either version 2 of the License, or
* (at your option) any later version.
*/
#ifndef ATMEL_SERIAL_H

5
drivers/tty/serial/bcm63xx_uart.c
View File

@ -1,8 +1,5 @@
// SPDX-License-Identifier: GPL-2.0
/*
* This file is subject to the terms and conditions of the GNU General Public
* License. See the file "COPYING" in the main directory of this archive
* for more details.
*
* Derived from many drivers using generic_serial interface.
*
* Copyright (C) 2008 Maxime Bizon <mbizon@freebox.fr>

5
drivers/tty/serial/bfin_sport_uart.c
View File

@ -1,11 +1,10 @@
// SPDX-License-Identifier: GPL-2.0+
/*
* Blackfin On-Chip Sport Emulated UART Driver
*
* Copyright 2006-2009 Analog Devices Inc.
*
* Enter bugs at http://blackfin.uclinux.org/
*
* Licensed under the GPL-2 or later.
*/
/*
@ -584,7 +583,7 @@ static void sport_set_termios(struct uart_port *port,
spin_unlock_irqrestore(&up->port.lock, flags);
}
struct uart_ops sport_uart_ops = {
static const struct uart_ops sport_uart_ops = {
.tx_empty = sport_tx_empty,
.set_mctrl = sport_set_mctrl,
.get_mctrl = sport_get_mctrl,

3
drivers/tty/serial/bfin_sport_uart.h
View File

@ -1,11 +1,10 @@
// SPDX-License-Identifier: GPL-2.0+
/*
* Blackfin On-Chip Sport Emulated UART Driver
*
* Copyright 2006-2008 Analog Devices Inc.
*
* Enter bugs at http://blackfin.uclinux.org/
*
* Licensed under the GPL-2 or later.
*/
/*

10
drivers/tty/serial/bfin_uart.c
View File

@ -1,11 +1,10 @@
// SPDX-License-Identifier: GPL-2.0+
/*
* Blackfin On-Chip Serial Driver
*
* Copyright 2006-2011 Analog Devices Inc.
*
* Enter bugs at http://blackfin.uclinux.org/
*
* Licensed under the GPL-2 or later.
*/
#if defined(CONFIG_SERIAL_BFIN_CONSOLE) && defined(CONFIG_MAGIC_SYSRQ)
@ -456,8 +455,9 @@ static void bfin_serial_dma_rx_chars(struct bfin_serial_port *uart)
tty_flip_buffer_push(&uart->port.state->port);
}
void bfin_serial_rx_dma_timeout(struct bfin_serial_port *uart)
void bfin_serial_rx_dma_timeout(struct timer_list *t)
{
struct bfin_serial_port *uart = from_timer(uart, t, rx_dma_timer);
int x_pos, pos;
unsigned long flags;
@ -624,8 +624,6 @@ static int bfin_serial_startup(struct uart_port *port)
set_dma_start_addr(uart->rx_dma_channel, (unsigned long)uart->rx_dma_buf.buf);
enable_dma(uart->rx_dma_channel);
uart->rx_dma_timer.data = (unsigned long)(uart);
uart->rx_dma_timer.function = (void *)bfin_serial_rx_dma_timeout;
uart->rx_dma_timer.expires = jiffies + DMA_RX_FLUSH_JIFFIES;
add_timer(&(uart->rx_dma_timer));
#else
@ -1316,7 +1314,7 @@ static int bfin_serial_probe(struct platform_device *pdev)
}
uart->rx_dma_channel = res->start;
init_timer(&(uart->rx_dma_timer));
timer_setup(&uart->rx_dma_timer, bfin_serial_rx_dma_timeout, 0);
#endif
#if defined(SERIAL_BFIN_CTSRTS) || \

6
drivers/tty/serial/clps711x.c
View File

@ -1,3 +1,4 @@
// SPDX-License-Identifier: GPL-2.0+
/*
* Driver for CLPS711x serial ports
*
@ -5,11 +6,6 @@
*
* Copyright 1999 ARM Limited
* Copyright (C) 2000 Deep Blue Solutions Ltd.
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; either version 2 of the License, or
* (at your option) any later version.
*/
#if defined(CONFIG_SERIAL_CLPS711X_CONSOLE) && defined(CONFIG_MAGIC_SYSRQ)

6
drivers/tty/serial/cpm_uart/cpm_uart.h
View File

@ -1,3 +1,4 @@
// SPDX-License-Identifier: GPL-2.0
/*
* Driver for CPM (SCC/SMC) serial ports
*
@ -5,11 +6,6 @@
*
* 2006 (c) MontaVista Software, Inc.
* Vitaly Bordug <vbordug@ru.mvista.com>
*
* This file is licensed under the terms of the GNU General Public License
* version 2. This program is licensed "as is" without any warranty of any
* kind, whether express or implied.
*
*/
#ifndef CPM_UART_H
#define CPM_UART_H

16
drivers/tty/serial/cpm_uart/cpm_uart_core.c
View File

@ -1,3 +1,4 @@
// SPDX-License-Identifier: GPL-2.0+
/*
* Driver for CPM (SCC/SMC) serial ports; core driver
*
@ -12,21 +13,6 @@
* (C) 2004 Intracom, S.A.
* (C) 2005-2006 MontaVista Software, Inc.
* Vitaly Bordug <vbordug@ru.mvista.com>
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; either version 2 of the License, or
* (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software
* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
*
*/
#include <linux/module.h>

16
drivers/tty/serial/cpm_uart/cpm_uart_cpm1.c
View File

@ -1,3 +1,4 @@
// SPDX-License-Identifier: GPL-2.0+
/*
* Driver for CPM (SCC/SMC) serial ports; CPM1 definitions
*
@ -8,21 +9,6 @@
* (C) 2004 Intracom, S.A.
* (C) 2006 MontaVista Software, Inc.
* Vitaly Bordug <vbordug@ru.mvista.com>
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; either version 2 of the License, or
* (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software
* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
*
*/
#include <linux/module.h>

16
drivers/tty/serial/cpm_uart/cpm_uart_cpm2.c
View File

@ -1,3 +1,4 @@
// SPDX-License-Identifier: GPL-2.0+
/*
* Driver for CPM (SCC/SMC) serial ports; CPM2 definitions
*
@ -8,21 +9,6 @@
* (C) 2004 Intracom, S.A.
* (C) 2006 MontaVista Software, Inc.
* Vitaly Bordug <vbordug@ru.mvista.com>
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; either version 2 of the License, or
* (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software
* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
*
*/
#include <linux/module.h>

6
drivers/tty/serial/digicolor-usart.c
View File

@ -1,14 +1,10 @@
// SPDX-License-Identifier: GPL-2.0+
/*
* Driver for Conexant Digicolor serial ports (USART)
*
* Author: Baruch Siach <baruch@tkos.co.il>
*
* Copyright (C) 2014 Paradox Innovation Ltd.
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; either version 2 of the License, or
* (at your option) any later version.
*/
#include <linux/module.h>

1
drivers/tty/serial/dz.c
View File

@ -1,3 +1,4 @@
// SPDX-License-Identifier: GPL-2.0
/*
* dz.c: Serial port driver for DECstations equipped
* with the DZ chipset.

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