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gpio: sx150x: move platform data into driver 

The sx150x has some platform data definition in <linux/i2c/sx150x.h>
but this file is only included from the driver in the whole kernel
so move its contents into the driver.

Cc: Wei Chen <Wei.Chen@csr.com>
Cc: Peter Rosin <peda@axentia.se>
Acked-by: Wolfram Sang <wsa@the-dreams.de>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
hifive-unleashed-5.1
Linus Walleij 2016-04-09 10:52:26 +02:00
parent f30e49f129
commit d17322feec
2 changed files with 59 additions and 83 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

60
drivers/gpio/gpio-sx150x.c
View File

@ -25,7 +25,6 @@
#include <linux/irq.h>
#include <linux/mutex.h>
#include <linux/slab.h>
#include <linux/i2c/sx150x.h>
#include <linux/of.h>
#include <linux/of_address.h>
#include <linux/of_irq.h>
@ -85,6 +84,65 @@ struct sx150x_device_data {
} pri;
};
/**
* struct sx150x_platform_data - config data for SX150x driver
* @gpio_base: The index number of the first GPIO assigned to this
* GPIO expander. The expander will create a block of
* consecutively numbered gpios beginning at the given base,
* with the size of the block depending on the model of the
* expander chip.
* @oscio_is_gpo: If set to true, the driver will configure OSCIO as a GPO
* instead of as an oscillator, increasing the size of the
* GP(I)O pool created by this expander by one. The
* output-only GPO pin will be added at the end of the block.
* @io_pullup_ena: A bit-mask which enables or disables the pull-up resistor
* for each IO line in the expander. Setting the bit at
* position n will enable the pull-up for the IO at
* the corresponding offset. For chips with fewer than
* 16 IO pins, high-end bits are ignored.
* @io_pulldn_ena: A bit-mask which enables-or disables the pull-down
* resistor for each IO line in the expander. Setting the
* bit at position n will enable the pull-down for the IO at
* the corresponding offset. For chips with fewer than
* 16 IO pins, high-end bits are ignored.
* @io_open_drain_ena: A bit-mask which enables-or disables open-drain
* operation for each IO line in the expander. Setting the
* bit at position n enables open-drain operation for
* the IO at the corresponding offset. Clearing the bit
* enables regular push-pull operation for that IO.
* For chips with fewer than 16 IO pins, high-end bits
* are ignored.
* @io_polarity: A bit-mask which enables polarity inversion for each IO line
* in the expander. Setting the bit at position n inverts
* the polarity of that IO line, while clearing it results
* in normal polarity. For chips with fewer than 16 IO pins,
* high-end bits are ignored.
* @irq_summary: The 'summary IRQ' line to which the GPIO expander's INT line
* is connected, via which it reports interrupt events
* across all GPIO lines. This must be a real,
* pre-existing IRQ line.
* Setting this value < 0 disables the irq_chip functionality
* of the driver.
* @irq_base: The first 'virtual IRQ' line at which our block of GPIO-based
* IRQ lines will appear. Similarly to gpio_base, the expander
* will create a block of irqs beginning at this number.
* This value is ignored if irq_summary is < 0.
* @reset_during_probe: If set to true, the driver will trigger a full
* reset of the chip at the beginning of the probe
* in order to place it in a known state.
*/
struct sx150x_platform_data {
unsigned gpio_base;
bool oscio_is_gpo;
u16 io_pullup_ena;
u16 io_pulldn_ena;
u16 io_open_drain_ena;
u16 io_polarity;
int irq_summary;
unsigned irq_base;
bool reset_during_probe;
};
struct sx150x_chip {
struct gpio_chip gpio_chip;
struct i2c_client *client;

82
include/linux/i2c/sx150x.h
View File

@ -1,82 +0,0 @@
/*
* Driver for the Semtech SX150x I2C GPIO Expanders
*
* Copyright (c) 2010, Code Aurora Forum. 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.
*
* 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 Street, Fifth Floor, Boston, MA
* 02110-1301, USA.
*/
#ifndef __LINUX_I2C_SX150X_H
#define __LINUX_I2C_SX150X_H
/**
* struct sx150x_platform_data - config data for SX150x driver
* @gpio_base: The index number of the first GPIO assigned to this
* GPIO expander. The expander will create a block of
* consecutively numbered gpios beginning at the given base,
* with the size of the block depending on the model of the
* expander chip.
* @oscio_is_gpo: If set to true, the driver will configure OSCIO as a GPO
* instead of as an oscillator, increasing the size of the
* GP(I)O pool created by this expander by one. The
* output-only GPO pin will be added at the end of the block.
* @io_pullup_ena: A bit-mask which enables or disables the pull-up resistor
* for each IO line in the expander. Setting the bit at
* position n will enable the pull-up for the IO at
* the corresponding offset. For chips with fewer than
* 16 IO pins, high-end bits are ignored.
* @io_pulldn_ena: A bit-mask which enables-or disables the pull-down
* resistor for each IO line in the expander. Setting the
* bit at position n will enable the pull-down for the IO at
* the corresponding offset. For chips with fewer than
* 16 IO pins, high-end bits are ignored.
* @io_open_drain_ena: A bit-mask which enables-or disables open-drain
* operation for each IO line in the expander. Setting the
* bit at position n enables open-drain operation for
* the IO at the corresponding offset. Clearing the bit
* enables regular push-pull operation for that IO.
* For chips with fewer than 16 IO pins, high-end bits
* are ignored.
* @io_polarity: A bit-mask which enables polarity inversion for each IO line
* in the expander. Setting the bit at position n inverts
* the polarity of that IO line, while clearing it results
* in normal polarity. For chips with fewer than 16 IO pins,
* high-end bits are ignored.
* @irq_summary: The 'summary IRQ' line to which the GPIO expander's INT line
* is connected, via which it reports interrupt events
* across all GPIO lines. This must be a real,
* pre-existing IRQ line.
* Setting this value < 0 disables the irq_chip functionality
* of the driver.
* @irq_base: The first 'virtual IRQ' line at which our block of GPIO-based
* IRQ lines will appear. Similarly to gpio_base, the expander
* will create a block of irqs beginning at this number.
* This value is ignored if irq_summary is < 0.
* @reset_during_probe: If set to true, the driver will trigger a full
* reset of the chip at the beginning of the probe
* in order to place it in a known state.
*/
struct sx150x_platform_data {
unsigned gpio_base;
bool oscio_is_gpo;
u16 io_pullup_ena;
u16 io_pulldn_ena;
u16 io_open_drain_ena;
u16 io_polarity;
int irq_summary;
unsigned irq_base;
bool reset_during_probe;
};
#endif /* __LINUX_I2C_SX150X_H */