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commit fe2b0cdabcd9e6aeca66a104bc03576946e5fee2
parent 956eb6cb36765e3a79a744e6c9364dab1548e460
Author: Linus Torvalds <torvalds@linux-foundation.org>
Date:   Fri, 28 Dec 2018 14:06:43 -0800

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

Diffstat:
March/arm/mach-pxa/palm27x.h | 2++
March/arm/mach-pxa/palmld.c | 12++++++++++++
March/mips/include/asm/mach-rc32434/rb.h | 6------
March/mips/rb532/devices.c | 12+++++++++---
Mdrivers/ata/pata_palmld.c | 83++++++++++++++++++++++++++++++++++++++++++-------------------------------------
Mdrivers/ata/pata_pxa.c | 1-
Mdrivers/ata/pata_rb532_cf.c | 45++++++++++-----------------------------------
Mdrivers/ata/sata_highbank.c | 37+++++++++++++++++--------------------
Mdrivers/ata/sata_rcar.c | 4+++-
9 files changed, 97 insertions(+), 105 deletions(-)

diff --git a/arch/arm/mach-pxa/palm27x.h b/arch/arm/mach-pxa/palm27x.h @@ -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); diff --git a/arch/arm/mach-pxa/palmld.c b/arch/arm/mach-pxa/palmld.c @@ -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 diff --git a/arch/mips/include/asm/mach-rc32434/rb.h b/arch/mips/include/asm/mach-rc32434/rb.h @@ -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; diff --git a/arch/mips/rb532/devices.c b/arch/mips/rb532/devices.c @@ -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)); } diff --git a/drivers/ata/pata_palmld.c b/drivers/ata/pata_palmld.c @@ -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; - - return ret; + 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; + } -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); - /* power down the HDD */ - gpio_set_value(GPIO_NR_PALMLD_IDE_PWEN, 0); + ata_platform_remove_one(pdev); - gpio_free_array(palmld_hdd_gpios, ARRAY_SIZE(palmld_hdd_gpios)); + /* power down the HDD */ + gpiod_set_value(lda->power, 0); return 0; } diff --git a/drivers/ata/pata_pxa.c b/drivers/ata/pata_pxa.c @@ -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> diff --git a/drivers/ata/pata_rb532_cf.c b/drivers/ata/pata_rb532_cf.c @@ -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; } diff --git a/drivers/ata/sata_highbank.c b/drivers/ata/sata_highbank.c @@ -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; - - 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; + struct gpio_desc *gpiod; + + 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, diff --git a/drivers/ata/sata_rcar.c b/drivers/ata/sata_rcar.c @@ -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);