From 6b1e3fca6ffb981db05688b1660a5d03d242edd4 Mon Sep 17 00:00:00 2001 From: Marek Vasut Date: Sat, 15 Jan 2011 19:19:05 +0100 Subject: ARM: pxa: Use gpio arrays in palmld_hdd driver Use gpio_request_array() / gpio_free_array(), this makes the code cleaner and less error prone. This patch also properly frees GPIOs in case ata_host_activate() call fails. Signed-off-by: Marek Vasut --- drivers/ata/pata_palmld.c | 43 ++++++++++++++++++++++--------------------- 1 file changed, 22 insertions(+), 21 deletions(-) (limited to 'drivers/ata/pata_palmld.c') diff --git a/drivers/ata/pata_palmld.c b/drivers/ata/pata_palmld.c index 11fb4ccc74b..fecf527e836 100644 --- a/drivers/ata/pata_palmld.c +++ b/drivers/ata/pata_palmld.c @@ -33,6 +33,11 @@ #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" }, +}; + static struct scsi_host_template palmld_sht = { ATA_PIO_SHT(DRV_NAME), }; @@ -52,28 +57,23 @@ static __devinit int palmld_pata_probe(struct platform_device *pdev) /* allocate host */ host = ata_host_alloc(&pdev->dev, 1); - if (!host) - return -ENOMEM; + if (!host) { + ret = -ENOMEM; + goto err1; + } /* remap drive's physical memory address */ mem = devm_ioremap(&pdev->dev, PALMLD_IDE_PHYS, 0x1000); - if (!mem) - return -ENOMEM; + if (!mem) { + ret = -ENOMEM; + goto err1; + } /* request and activate power GPIO, IRQ GPIO */ - ret = gpio_request(GPIO_NR_PALMLD_IDE_PWEN, "HDD PWR"); + ret = gpio_request_array(palmld_hdd_gpios, + ARRAY_SIZE(palmld_hdd_gpios)); if (ret) goto err1; - ret = gpio_direction_output(GPIO_NR_PALMLD_IDE_PWEN, 1); - if (ret) - goto err2; - - ret = gpio_request(GPIO_NR_PALMLD_IDE_RESET, "HDD RST"); - if (ret) - goto err2; - ret = gpio_direction_output(GPIO_NR_PALMLD_IDE_RESET, 0); - if (ret) - goto err3; /* reset the drive */ gpio_set_value(GPIO_NR_PALMLD_IDE_RESET, 0); @@ -96,13 +96,15 @@ static __devinit int palmld_pata_probe(struct platform_device *pdev) ata_sff_std_ports(&ap->ioaddr); /* activate host */ - return ata_host_activate(host, 0, NULL, IRQF_TRIGGER_RISING, + ret = ata_host_activate(host, 0, NULL, IRQF_TRIGGER_RISING, &palmld_sht); + if (ret) + goto err2; + + return ret; -err3: - gpio_free(GPIO_NR_PALMLD_IDE_RESET); err2: - gpio_free(GPIO_NR_PALMLD_IDE_PWEN); + gpio_free_array(palmld_hdd_gpios, ARRAY_SIZE(palmld_hdd_gpios)); err1: return ret; } @@ -116,8 +118,7 @@ static __devexit int palmld_pata_remove(struct platform_device *dev) /* power down the HDD */ gpio_set_value(GPIO_NR_PALMLD_IDE_PWEN, 0); - gpio_free(GPIO_NR_PALMLD_IDE_RESET); - gpio_free(GPIO_NR_PALMLD_IDE_PWEN); + gpio_free_array(palmld_hdd_gpios, ARRAY_SIZE(palmld_hdd_gpios)); return 0; } -- cgit v1.2.3-70-g09d2