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author | Robert Jarzmik <robert.jarzmik@free.fr> | 2009-07-06 22:16:42 +0200 |
---|---|---|
committer | Eric Miao <eric.y.miao@gmail.com> | 2009-09-10 18:49:30 +0800 |
commit | 7a648256b20c493c99757fe1d248daf7954647bc (patch) | |
tree | 82aa6566accc96ea07a89121cb9779090a6dab40 /arch/arm/mach-pxa/palmtx.c | |
parent | b405db6c015fe8e4c9d8199a0355bb16d95d7049 (diff) | |
download | kernel_samsung_smdk4412-7a648256b20c493c99757fe1d248daf7954647bc.zip kernel_samsung_smdk4412-7a648256b20c493c99757fe1d248daf7954647bc.tar.gz kernel_samsung_smdk4412-7a648256b20c493c99757fe1d248daf7954647bc.tar.bz2 |
[ARM] pxa: factor pxamci gpio handling
Several boards use always the same pattern with pxamci :
request gpio, request irq for that gpio to detect MMC card
insertion, request gpio for read-only mode detection, etc
...
Now that pxamci provides platform_data to describe simple
gpio management of the MMC external controls, use it.
Signed-off-by: Robert Jarzmik <robert.jarzmik@free.fr>
Acked-by: Mike Rapoport <mike@compulab.co.il>
Acked-by: Philipp Zabel <philipp.zabel@gmail.com>
Acked-by: Dmitry Eremin-Solenikov <dbaryshkov@gmail.com>
Cc: rpurdie@rpsys.net
Cc: drwyrm@gmail.com
Cc: sakoman@gmail.com
Cc: marek.vasut@gmail.com
Cc: s.hauer@pengutronix.de
Signed-off-by: Eric Miao <eric.y.miao@gmail.com>
Diffstat (limited to 'arch/arm/mach-pxa/palmtx.c')
-rw-r--r-- | arch/arm/mach-pxa/palmtx.c | 80 |
1 files changed, 4 insertions, 76 deletions
diff --git a/arch/arm/mach-pxa/palmtx.c b/arch/arm/mach-pxa/palmtx.c index 83d0208..4a9ca71 100644 --- a/arch/arm/mach-pxa/palmtx.c +++ b/arch/arm/mach-pxa/palmtx.c @@ -140,83 +140,11 @@ static unsigned long palmtx_pin_config[] __initdata = { /****************************************************************************** * SD/MMC card controller ******************************************************************************/ -static int palmtx_mci_init(struct device *dev, irq_handler_t palmtx_detect_int, - void *data) -{ - int err = 0; - - /* Setup an interrupt for detecting card insert/remove events */ - err = gpio_request(GPIO_NR_PALMTX_SD_DETECT_N, "SD IRQ"); - if (err) - goto err; - err = gpio_direction_input(GPIO_NR_PALMTX_SD_DETECT_N); - if (err) - goto err2; - err = request_irq(gpio_to_irq(GPIO_NR_PALMTX_SD_DETECT_N), - palmtx_detect_int, IRQF_DISABLED | IRQF_SAMPLE_RANDOM | - IRQF_TRIGGER_FALLING | IRQF_TRIGGER_RISING, - "SD/MMC card detect", data); - if (err) { - printk(KERN_ERR "%s: cannot request SD/MMC card detect IRQ\n", - __func__); - goto err2; - } - - err = gpio_request(GPIO_NR_PALMTX_SD_POWER, "SD_POWER"); - if (err) - goto err3; - err = gpio_direction_output(GPIO_NR_PALMTX_SD_POWER, 0); - if (err) - goto err4; - - err = gpio_request(GPIO_NR_PALMTX_SD_READONLY, "SD_READONLY"); - if (err) - goto err4; - err = gpio_direction_input(GPIO_NR_PALMTX_SD_READONLY); - if (err) - goto err5; - - printk(KERN_DEBUG "%s: irq registered\n", __func__); - - return 0; - -err5: - gpio_free(GPIO_NR_PALMTX_SD_READONLY); -err4: - gpio_free(GPIO_NR_PALMTX_SD_POWER); -err3: - free_irq(gpio_to_irq(GPIO_NR_PALMTX_SD_DETECT_N), data); -err2: - gpio_free(GPIO_NR_PALMTX_SD_DETECT_N); -err: - return err; -} - -static void palmtx_mci_exit(struct device *dev, void *data) -{ - gpio_free(GPIO_NR_PALMTX_SD_READONLY); - gpio_free(GPIO_NR_PALMTX_SD_POWER); - free_irq(gpio_to_irq(GPIO_NR_PALMTX_SD_DETECT_N), data); - gpio_free(GPIO_NR_PALMTX_SD_DETECT_N); -} - -static void palmtx_mci_power(struct device *dev, unsigned int vdd) -{ - struct pxamci_platform_data *p_d = dev->platform_data; - gpio_set_value(GPIO_NR_PALMTX_SD_POWER, p_d->ocr_mask & (1 << vdd)); -} - -static int palmtx_mci_get_ro(struct device *dev) -{ - return gpio_get_value(GPIO_NR_PALMTX_SD_READONLY); -} - static struct pxamci_platform_data palmtx_mci_platform_data = { - .ocr_mask = MMC_VDD_32_33 | MMC_VDD_33_34, - .setpower = palmtx_mci_power, - .get_ro = palmtx_mci_get_ro, - .init = palmtx_mci_init, - .exit = palmtx_mci_exit, + .ocr_mask = MMC_VDD_32_33 | MMC_VDD_33_34, + .gpio_card_detect = GPIO_NR_PALMTX_SD_DETECT_N, + .gpio_card_ro = GPIO_NR_PALMTX_SD_READONLY, + .gpio_power = GPIO_NR_PALMTX_SD_POWER, }; /****************************************************************************** |