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for-4.21/libata-20181221 

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Merge tag 'for-4.21/libata-20181221' of git://git.kernel.dk/linux-block

Pull libata updates from Jens Axboe:
 "Here are the libata changes for this merge window. Nothing major in
  here. This contains:

   - GPIO descriptor conversions (Linus Walleij)

   - rcar deferred probing fix (Sergei Shtylyov)"

* tag 'for-4.21/libata-20181221' of git://git.kernel.dk/linux-block:
  sata_rcar: fix deferred probing
  ata: palmld: Introduce state container
  ata: palmld: Convert to GPIO descriptors
  ata: rb532_cf: Convert to use GPIO descriptors
  ata: sata_highbank: Convert to use GPIO descriptors
  ata: pxa: Drop <linux/gpio.h> include
hifive-unleashed-5.1
Linus Torvalds 2018-12-28 14:06:43 -08:00
parent 956eb6cb36 9f83cfdb1a
commit fe2b0cdabc
9 changed files with 96 additions and 104 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

2
arch/arm/mach-pxa/palm27x.h
View File

@ -12,6 +12,8 @@
#ifndef __INCLUDE_MACH_PALM27X__
#define __INCLUDE_MACH_PALM27X__
#include <linux/gpio/machine.h>
#if defined(CONFIG_MMC_PXA) || defined(CONFIG_MMC_PXA_MODULE)
extern void __init palm27x_mmc_init(int detect, int ro, int power,
int power_inverted);

12
arch/arm/mach-pxa/palmld.c
View File

@ -288,8 +288,20 @@ static struct platform_device palmld_ide_device = {
.id = -1,
};
static struct gpiod_lookup_table palmld_ide_gpio_table = {
.dev_id = "pata_palmld",
.table = {
GPIO_LOOKUP("gpio-pxa", GPIO_NR_PALMLD_IDE_PWEN,
"power", GPIO_ACTIVE_HIGH),
GPIO_LOOKUP("gpio-pxa", GPIO_NR_PALMLD_IDE_RESET,
"reset", GPIO_ACTIVE_LOW),
{ },
},
};
static void __init palmld_ide_init(void)
{
gpiod_add_lookup_table(&palmld_ide_gpio_table);
platform_device_register(&palmld_ide_device);
}
#else

6
arch/mips/include/asm/mach-rc32434/rb.h
View File

@ -71,12 +71,6 @@ struct korina_device {
struct net_device *dev;
};
struct cf_device {
int gpio_pin;
void *dev;
struct gendisk *gd;
};
struct mpmc_device {
unsigned char state;
spinlock_t lock;

12
arch/mips/rb532/devices.c
View File

@ -23,6 +23,7 @@
#include <linux/mtd/platnand.h>
#include <linux/mtd/mtd.h>
#include <linux/gpio.h>
#include <linux/gpio/machine.h>
#include <linux/gpio_keys.h>
#include <linux/input.h>
#include <linux/serial_8250.h>
@ -127,14 +128,18 @@ static struct resource cf_slot0_res[] = {
}
};
static struct cf_device cf_slot0_data = {
.gpio_pin = CF_GPIO_NUM
static struct gpiod_lookup_table cf_slot0_gpio_table = {
.dev_id = "pata-rb532-cf",
.table = {
GPIO_LOOKUP("gpio0", CF_GPIO_NUM,
NULL, GPIO_ACTIVE_HIGH),
{ },
},
};
static struct platform_device cf_slot0 = {
.id = -1,
.name = "pata-rb532-cf",
.dev.platform_data = &cf_slot0_data,
.resource = cf_slot0_res,
.num_resources = ARRAY_SIZE(cf_slot0_res),
};
@ -305,6 +310,7 @@ static int __init plat_setup_devices(void)
dev_set_drvdata(&korina_dev0.dev, &korina_dev0_data);
gpiod_add_lookup_table(&cf_slot0_gpio_table);
return platform_add_devices(rb532_devs, ARRAY_SIZE(rb532_devs));
}

83
drivers/ata/pata_palmld.c
View File

@ -26,16 +26,17 @@
#include <linux/irq.h>
#include <linux/platform_device.h>
#include <linux/delay.h>
#include <linux/gpio.h>
#include <linux/gpio/consumer.h>
#include <scsi/scsi_host.h>
#include <mach/palmld.h>
#define DRV_NAME "pata_palmld"
static struct gpio palmld_hdd_gpios[] = {
{ GPIO_NR_PALMLD_IDE_PWEN, GPIOF_INIT_HIGH, "HDD Power" },
{ GPIO_NR_PALMLD_IDE_RESET, GPIOF_INIT_LOW, "HDD Reset" },
struct palmld_pata {
struct ata_host *host;
struct gpio_desc *power;
struct gpio_desc *reset;
};
static struct scsi_host_template palmld_sht = {
@ -50,39 +51,44 @@ static struct ata_port_operations palmld_port_ops = {
static int palmld_pata_probe(struct platform_device *pdev)
{
struct ata_host *host;
struct palmld_pata *lda;
struct ata_port *ap;
void __iomem *mem;
struct device *dev = &pdev->dev;
int ret;
lda = devm_kzalloc(dev, sizeof(*lda), GFP_KERNEL);
if (!lda)
return -ENOMEM;
/* allocate host */
host = ata_host_alloc(&pdev->dev, 1);
if (!host) {
ret = -ENOMEM;
goto err1;
}
lda->host = ata_host_alloc(dev, 1);
if (!lda->host)
return -ENOMEM;
/* remap drive's physical memory address */
mem = devm_ioremap(&pdev->dev, PALMLD_IDE_PHYS, 0x1000);
if (!mem) {
ret = -ENOMEM;
goto err1;
mem = devm_ioremap(dev, PALMLD_IDE_PHYS, 0x1000);
if (!mem)
return -ENOMEM;
/* request and activate power and reset GPIOs */
lda->power = devm_gpiod_get(dev, "power", GPIOD_OUT_HIGH);
if (IS_ERR(lda->power))
return PTR_ERR(lda->power);
lda->reset = devm_gpiod_get(dev, "reset", GPIOD_OUT_HIGH);
if (IS_ERR(lda->reset)) {
gpiod_set_value(lda->power, 0);
return PTR_ERR(lda->reset);
}
/* request and activate power GPIO, IRQ GPIO */
ret = gpio_request_array(palmld_hdd_gpios,
ARRAY_SIZE(palmld_hdd_gpios));
if (ret)
goto err1;
/* reset the drive */
gpio_set_value(GPIO_NR_PALMLD_IDE_RESET, 0);
/* Assert reset to reset the drive */
gpiod_set_value(lda->reset, 1);
msleep(30);
gpio_set_value(GPIO_NR_PALMLD_IDE_RESET, 1);
gpiod_set_value(lda->reset, 0);
msleep(30);
/* setup the ata port */
ap = host->ports[0];
ap = lda->host->ports[0];
ap->ops = &palmld_port_ops;
ap->pio_mask = ATA_PIO4;
ap->flags |= ATA_FLAG_PIO_POLLING;
@ -96,27 +102,26 @@ static int palmld_pata_probe(struct platform_device *pdev)
ata_sff_std_ports(&ap->ioaddr);
/* activate host */
ret = ata_host_activate(host, 0, NULL, IRQF_TRIGGER_RISING,
&palmld_sht);
if (ret)
goto err2;
ret = ata_host_activate(lda->host, 0, NULL, IRQF_TRIGGER_RISING,
&palmld_sht);
/* power down on failure */
if (ret) {
gpiod_set_value(lda->power, 0);
return ret;
}
return ret;
err2:
gpio_free_array(palmld_hdd_gpios, ARRAY_SIZE(palmld_hdd_gpios));
err1:
return ret;
platform_set_drvdata(pdev, lda);
return 0;
}
static int palmld_pata_remove(struct platform_device *dev)
static int palmld_pata_remove(struct platform_device *pdev)
{
ata_platform_remove_one(dev);
struct palmld_pata *lda = platform_get_drvdata(pdev);
ata_platform_remove_one(pdev);
/* power down the HDD */
gpio_set_value(GPIO_NR_PALMLD_IDE_PWEN, 0);
gpio_free_array(palmld_hdd_gpios, ARRAY_SIZE(palmld_hdd_gpios));
gpiod_set_value(lda->power, 0);
return 0;
}

1
drivers/ata/pata_pxa.c
View File

@ -25,7 +25,6 @@
#include <linux/libata.h>
#include <linux/platform_device.h>
#include <linux/dmaengine.h>
#include <linux/gpio.h>
#include <linux/slab.h>
#include <linux/completion.h>

45
drivers/ata/pata_rb532_cf.c
View File

@ -27,7 +27,7 @@
#include <linux/io.h>
#include <linux/interrupt.h>
#include <linux/irq.h>
#include <linux/gpio.h>
#include <linux/gpio/consumer.h>
#include <linux/libata.h>
#include <scsi/scsi_host.h>
@ -49,7 +49,7 @@
struct rb532_cf_info {
void __iomem *iobase;
unsigned int gpio_line;
struct gpio_desc *gpio_line;
unsigned int irq;
};
@ -60,7 +60,7 @@ static irqreturn_t rb532_pata_irq_handler(int irq, void *dev_instance)
struct ata_host *ah = dev_instance;
struct rb532_cf_info *info = ah->private_data;
if (gpio_get_value(info->gpio_line)) {
if (gpiod_get_value(info->gpio_line)) {
irq_set_irq_type(info->irq, IRQ_TYPE_LEVEL_LOW);
ata_sff_interrupt(info->irq, dev_instance);
} else {
@ -106,10 +106,9 @@ static void rb532_pata_setup_ports(struct ata_host *ah)
static int rb532_pata_driver_probe(struct platform_device *pdev)
{
int irq;
int gpio;
struct gpio_desc *gpiod;
struct resource *res;
struct ata_host *ah;
struct cf_device *pdata;
struct rb532_cf_info *info;
int ret;
@ -125,23 +124,12 @@ static int rb532_pata_driver_probe(struct platform_device *pdev)
return -ENOENT;
}
pdata = dev_get_platdata(&pdev->dev);
if (!pdata) {
dev_err(&pdev->dev, "no platform data specified\n");
return -EINVAL;
}
gpio = pdata->gpio_pin;
if (gpio < 0) {
gpiod = devm_gpiod_get(&pdev->dev, NULL, GPIOD_IN);
if (IS_ERR(gpiod)) {
dev_err(&pdev->dev, "no GPIO found for irq%d\n", irq);
return -ENOENT;
}
ret = gpio_request(gpio, DRV_NAME);
if (ret) {
dev_err(&pdev->dev, "GPIO request failed\n");
return ret;
return PTR_ERR(gpiod);
}
gpiod_set_consumer_name(gpiod, DRV_NAME);
/* allocate host */
ah = ata_host_alloc(&pdev->dev, RB500_CF_MAXPORTS);
@ -153,7 +141,7 @@ static int rb532_pata_driver_probe(struct platform_device *pdev)
return -ENOMEM;
ah->private_data = info;
info->gpio_line = gpio;
info->gpio_line = gpiod;
info->irq = irq;
info->iobase = devm_ioremap_nocache(&pdev->dev, res->start,
@ -161,26 +149,14 @@ static int rb532_pata_driver_probe(struct platform_device *pdev)
if (!info->iobase)
return -ENOMEM;
ret = gpio_direction_input(gpio);
if (ret) {
dev_err(&pdev->dev, "unable to set GPIO direction, err=%d\n",
ret);
goto err_free_gpio;
}
rb532_pata_setup_ports(ah);
ret = ata_host_activate(ah, irq, rb532_pata_irq_handler,
IRQF_TRIGGER_LOW, &rb532_pata_sht);
if (ret)
goto err_free_gpio;
return ret;
return 0;
err_free_gpio:
gpio_free(gpio);
return ret;
}
static int rb532_pata_driver_remove(struct platform_device *pdev)
@ -189,7 +165,6 @@ static int rb532_pata_driver_remove(struct platform_device *pdev)
struct rb532_cf_info *info = ah->private_data;
ata_host_detach(ah);
gpio_free(info->gpio_line);
return 0;
}

35
drivers/ata/sata_highbank.c
View File

@ -31,8 +31,7 @@
#include <linux/interrupt.h>
#include <linux/delay.h>
#include <linux/export.h>
#include <linux/gpio.h>
#include <linux/of_gpio.h>
#include <linux/gpio/consumer.h>
#include "ahci.h"
@ -85,7 +84,7 @@ struct ecx_plat_data {
/* number of extra clocks that the SGPIO PIC controller expects */
u32 pre_clocks;
u32 post_clocks;
unsigned sgpio_gpio[SGPIO_PINS];
struct gpio_desc *sgpio_gpiod[SGPIO_PINS];
u32 sgpio_pattern;
u32 port_to_sgpio[SGPIO_PORTS];
};
@ -131,9 +130,9 @@ static void ecx_parse_sgpio(struct ecx_plat_data *pdata, u32 port, u32 state)
*/
static void ecx_led_cycle_clock(struct ecx_plat_data *pdata)
{
gpio_set_value(pdata->sgpio_gpio[SCLOCK], 1);
gpiod_set_value(pdata->sgpio_gpiod[SCLOCK], 1);
udelay(50);
gpio_set_value(pdata->sgpio_gpio[SCLOCK], 0);
gpiod_set_value(pdata->sgpio_gpiod[SCLOCK], 0);
udelay(50);
}
@ -164,15 +163,15 @@ static ssize_t ecx_transmit_led_message(struct ata_port *ap, u32 state,
for (i = 0; i < pdata->pre_clocks; i++)
ecx_led_cycle_clock(pdata);
gpio_set_value(pdata->sgpio_gpio[SLOAD], 1);
gpiod_set_value(pdata->sgpio_gpiod[SLOAD], 1);
ecx_led_cycle_clock(pdata);
gpio_set_value(pdata->sgpio_gpio[SLOAD], 0);
gpiod_set_value(pdata->sgpio_gpiod[SLOAD], 0);
/*
* bit-bang out the SGPIO pattern, by consuming a bit and then
* clocking it out.
*/
for (i = 0; i < (SGPIO_SIGNALS * pdata->n_ports); i++) {
gpio_set_value(pdata->sgpio_gpio[SDATA], sgpio_out & 1);
gpiod_set_value(pdata->sgpio_gpiod[SDATA], sgpio_out & 1);
sgpio_out >>= 1;
ecx_led_cycle_clock(pdata);
}
@ -193,21 +192,19 @@ static void highbank_set_em_messages(struct device *dev,
struct device_node *np = dev->of_node;
struct ecx_plat_data *pdata = hpriv->plat_data;
int i;
int err;
for (i = 0; i < SGPIO_PINS; i++) {
err = of_get_named_gpio(np, "calxeda,sgpio-gpio", i);
if (err < 0)
return;
struct gpio_desc *gpiod;
pdata->sgpio_gpio[i] = err;
err = gpio_request(pdata->sgpio_gpio[i], "CX SGPIO");
if (err) {
pr_err("sata_highbank gpio_request %d failed: %d\n",
i, err);
return;
gpiod = devm_gpiod_get_index(dev, "calxeda,sgpio", i,
GPIOD_OUT_HIGH);
if (IS_ERR(gpiod)) {
dev_err(dev, "failed to get GPIO %d\n", i);
continue;
}
gpio_direction_output(pdata->sgpio_gpio[i], 1);
gpiod_set_consumer_name(gpiod, "CX SGPIO");
pdata->sgpio_gpiod[i] = gpiod;
}
of_property_read_u32_array(np, "calxeda,led-order",
pdata->port_to_sgpio,

4
drivers/ata/sata_rcar.c
View File

@ -891,7 +891,9 @@ static int sata_rcar_probe(struct platform_device *pdev)
int ret = 0;
irq = platform_get_irq(pdev, 0);
if (irq <= 0)
if (irq < 0)
return irq;
if (!irq)
return -EINVAL;
priv = devm_kzalloc(dev, sizeof(struct sata_rcar_priv), GFP_KERNEL);