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authorRobert Jarzmik <robert.jarzmik@free.fr>2009-07-06 22:16:42 +0200
committerEric Miao <eric.y.miao@gmail.com>2009-09-10 18:49:30 +0800
commit7a648256b20c493c99757fe1d248daf7954647bc (patch)
tree82aa6566accc96ea07a89121cb9779090a6dab40 /arch/arm/mach-pxa/palmtx.c
parentb405db6c015fe8e4c9d8199a0355bb16d95d7049 (diff)
downloadop-kernel-dev-7a648256b20c493c99757fe1d248daf7954647bc.zip
op-kernel-dev-7a648256b20c493c99757fe1d248daf7954647bc.tar.gz
[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.c80
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,
};
/******************************************************************************
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