renegade-project/linux-next
2
0
Fork 0
mirror of https://github.com/edk2-porting/linux-next.git synced 2024-12-22 12:14:01 +08:00
Code

[ARM] pxa/treo680: pxamci simplify to use GPIO

Browse Source 
Signed-off-by: Tomáš Čech <sleep_walker@suse.cz>
Acked-by: Marek Vasut <marek.vasut@gmail.com>
Signed-off-by: Eric Miao <eric.y.miao@gmail.com>
This commit is contained in:
walker@suse.cz 2009-08-31 19:25:57 +02:00 committed by Eric Miao
parent 93dd29a818
commit 7dafdf3d22
1 changed files with 4 additions and 80 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

84
arch/arm/mach-pxa/treo680.c
View File

@ -153,87 +153,11 @@ static unsigned long treo680_pin_config[] __initdata = {
/******************************************************************************
* SD/MMC card controller
******************************************************************************/
static int treo680_mci_init(struct device *dev,
irq_handler_t treo680_detect_int, void *data)
{
int err = 0;
/* Setup an interrupt for detecting card insert/remove events */
err = gpio_request(GPIO_NR_TREO680_SD_DETECT_N, "SD IRQ");
if (err)
goto err;
err = gpio_direction_input(GPIO_NR_TREO680_SD_DETECT_N);
if (err)
goto err2;
err = request_irq(gpio_to_irq(GPIO_NR_TREO680_SD_DETECT_N),
treo680_detect_int, IRQF_DISABLED | IRQF_SAMPLE_RANDOM |
IRQF_TRIGGER_FALLING | IRQF_TRIGGER_RISING,
"SD/MMC card detect", data);
if (err) {
dev_err(dev, "%s: cannot request SD/MMC card detect IRQ\n",
__func__);
goto err2;
}
err = gpio_request(GPIO_NR_TREO680_SD_POWER, "SD_POWER");
if (err)
goto err3;
err = gpio_direction_output(GPIO_NR_TREO680_SD_POWER, 1);
if (err)
goto err4;
err = gpio_request(GPIO_NR_TREO680_SD_READONLY, "SD_READONLY");
if (err)
goto err4;
err = gpio_direction_input(GPIO_NR_TREO680_SD_READONLY);
if (err)
goto err5;
return 0;
err5:
gpio_free(GPIO_NR_TREO680_SD_READONLY);
err4:
gpio_free(GPIO_NR_TREO680_SD_POWER);
err3:
free_irq(gpio_to_irq(GPIO_NR_TREO680_SD_DETECT_N), data);
err2:
gpio_free(GPIO_NR_TREO680_SD_DETECT_N);
err:
return err;
}
static void treo680_mci_exit(struct device *dev, void *data)
{
gpio_free(GPIO_NR_TREO680_SD_READONLY);
gpio_free(GPIO_NR_TREO680_SD_POWER);
free_irq(gpio_to_irq(GPIO_NR_TREO680_SD_DETECT_N), data);
gpio_free(GPIO_NR_TREO680_SD_DETECT_N);
}
static void treo680_mci_power(struct device *dev, unsigned int vdd)
{
struct pxamci_platform_data *p_d = dev->platform_data;
gpio_set_value(GPIO_NR_TREO680_SD_POWER, p_d->ocr_mask & (1 << vdd));
}
static int treo680_mci_get_ro(struct device *dev)
{
return gpio_get_value(GPIO_NR_TREO680_SD_READONLY);
}
static struct pxamci_platform_data treo680_mci_platform_data = {
.ocr_mask = MMC_VDD_32_33 | MMC_VDD_33_34,
.setpower = treo680_mci_power,
.get_ro = treo680_mci_get_ro,
.init = treo680_mci_init,
.exit = treo680_mci_exit,
.ocr_mask = MMC_VDD_32_33 | MMC_VDD_33_34,
.gpio_card_detect = GPIO_NR_TREO680_SD_DETECT_N,
.gpio_card_ro = GPIO_NR_TREO680_SD_READONLY,
.gpio_power = GPIO_NR_TREO680_SD_POWER,
};
/******************************************************************************