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[ARM] pxa/zylonite: simplify reduntant gpio settings on mmc slot

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PXA mmc host driver supports card detect, read only and power gpio pin
setting already. Zylonite platform driver needn't implement this any more.

Signed-off-by: Haojian Zhuang <haojian.zhuang@marvell.com>
Signed-off-by: Eric Miao <eric.y.miao@gmail.com>
This commit is contained in:
Haojian Zhuang 2009-12-22 07:29:40 -05:00 committed by Eric Miao
parent c57b934343
commit f91e4906e2
4 changed files with 16 additions and 94 deletions
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7
arch/arm/mach-pxa/include/mach/zylonite.h
View File

@ -8,13 +8,6 @@
/* the following variables are processor specific and initialized
* by the corresponding zylonite_pxa3xx_init()
*/
struct platform_mmc_slot {
int gpio_cd;
int gpio_wp;
};
extern struct platform_mmc_slot zylonite_mmc_slot[];
extern int gpio_eth_irq;
extern int gpio_debug_led1;
extern int gpio_debug_led2;

87
arch/arm/mach-pxa/zylonite.c
View File

@ -36,9 +36,6 @@
#include "devices.h"
#include "generic.h"
#define MAX_SLOTS 3
struct platform_mmc_slot zylonite_mmc_slot[MAX_SLOTS];
int gpio_eth_irq;
int gpio_debug_led1;
int gpio_debug_led2;
@ -220,84 +217,28 @@ static inline void zylonite_init_lcd(void) {}
#endif
#if defined(CONFIG_MMC)
static int zylonite_mci_ro(struct device *dev)
{
struct platform_device *pdev = to_platform_device(dev);
return gpio_get_value(zylonite_mmc_slot[pdev->id].gpio_wp);
}
static int zylonite_mci_init(struct device *dev,
irq_handler_t zylonite_detect_int,
void *data)
{
struct platform_device *pdev = to_platform_device(dev);
int err, cd_irq, gpio_cd, gpio_wp;
cd_irq = gpio_to_irq(zylonite_mmc_slot[pdev->id].gpio_cd);
gpio_cd = zylonite_mmc_slot[pdev->id].gpio_cd;
gpio_wp = zylonite_mmc_slot[pdev->id].gpio_wp;
/*
* setup GPIO for Zylonite MMC controller
*/
err = gpio_request(gpio_cd, "mmc card detect");
if (err)
goto err_request_cd;
gpio_direction_input(gpio_cd);
err = gpio_request(gpio_wp, "mmc write protect");
if (err)
goto err_request_wp;
gpio_direction_input(gpio_wp);
err = request_irq(cd_irq, zylonite_detect_int,
IRQF_TRIGGER_RISING | IRQF_TRIGGER_FALLING,
"MMC card detect", data);
if (err) {
printk(KERN_ERR "%s: MMC/SD/SDIO: "
"can't request card detect IRQ\n", __func__);
goto err_request_irq;
}
return 0;
err_request_irq:
gpio_free(gpio_wp);
err_request_wp:
gpio_free(gpio_cd);
err_request_cd:
return err;
}
static void zylonite_mci_exit(struct device *dev, void *data)
{
struct platform_device *pdev = to_platform_device(dev);
int cd_irq, gpio_cd, gpio_wp;
cd_irq = gpio_to_irq(zylonite_mmc_slot[pdev->id].gpio_cd);
gpio_cd = zylonite_mmc_slot[pdev->id].gpio_cd;
gpio_wp = zylonite_mmc_slot[pdev->id].gpio_wp;
free_irq(cd_irq, data);
gpio_free(gpio_cd);
gpio_free(gpio_wp);
}
static struct pxamci_platform_data zylonite_mci_platform_data = {
.detect_delay = 20,
.ocr_mask = MMC_VDD_32_33|MMC_VDD_33_34,
.init = zylonite_mci_init,
.exit = zylonite_mci_exit,
.get_ro = zylonite_mci_ro,
.gpio_card_detect = -1,
.gpio_card_ro = -1,
.gpio_card_detect = EXT_GPIO(0),
.gpio_card_ro = EXT_GPIO(2),
.gpio_power = -1,
};
static struct pxamci_platform_data zylonite_mci2_platform_data = {
.detect_delay = 20,
.ocr_mask = MMC_VDD_32_33|MMC_VDD_33_34,
.gpio_card_detect = EXT_GPIO(1),
.gpio_card_ro = EXT_GPIO(3),
.gpio_power = -1,
};
static struct pxamci_platform_data zylonite_mci3_platform_data = {
.detect_delay = 20,
.ocr_mask = MMC_VDD_32_33|MMC_VDD_33_34,
.gpio_card_detect = EXT_GPIO(30),
.gpio_card_ro = EXT_GPIO(31),
.gpio_power = -1,
};
static void __init zylonite_init_mmc(void)
@ -305,7 +246,7 @@ static void __init zylonite_init_mmc(void)
pxa_set_mci_info(&zylonite_mci_platform_data);
pxa3xx_set_mci2_info(&zylonite_mci2_platform_data);
if (cpu_is_pxa310())
pxa3xx_set_mci3_info(&zylonite_mci_platform_data);
pxa3xx_set_mci3_info(&zylonite_mci3_platform_data);
}
#else
static inline void zylonite_init_mmc(void) {}

12
arch/arm/mach-pxa/zylonite_pxa300.c
View File

@ -129,8 +129,8 @@ static mfp_cfg_t common_mfp_cfg[] __initdata = {
GPIO22_I2C_SDA,
/* GPIO */
GPIO18_GPIO, /* GPIO Expander #0 INT_N */
GPIO19_GPIO, /* GPIO Expander #1 INT_N */
GPIO18_GPIO | MFP_PULL_HIGH, /* GPIO Expander #0 INT_N */
GPIO19_GPIO | MFP_PULL_HIGH, /* GPIO Expander #1 INT_N */
};
static mfp_cfg_t pxa300_mfp_cfg[] __initdata = {
@ -258,10 +258,6 @@ void __init zylonite_pxa300_init(void)
/* detect LCD panel */
zylonite_detect_lcd_panel();
/* MMC card detect & write protect for controller 0 */
zylonite_mmc_slot[0].gpio_cd = EXT_GPIO(0);
zylonite_mmc_slot[0].gpio_wp = EXT_GPIO(2);
/* WM9713 IRQ */
wm9713_irq = mfp_to_gpio(MFP_PIN_GPIO26);
@ -276,10 +272,6 @@ void __init zylonite_pxa300_init(void)
if (cpu_is_pxa310()) {
pxa3xx_mfp_config(ARRAY_AND_SIZE(pxa310_mfp_cfg));
gpio_eth_irq = mfp_to_gpio(MFP_PIN_GPIO102);
/* MMC card detect & write protect for controller 2 */
zylonite_mmc_slot[2].gpio_cd = EXT_GPIO(30);
zylonite_mmc_slot[2].gpio_wp = EXT_GPIO(31);
}
/* GPIOs for Debug LEDs */

4
arch/arm/mach-pxa/zylonite_pxa320.c
View File

@ -209,10 +209,6 @@ void __init zylonite_pxa320_init(void)
gpio_debug_led1 = mfp_to_gpio(MFP_PIN_GPIO1_2);
gpio_debug_led2 = mfp_to_gpio(MFP_PIN_GPIO4_2);
/* MMC card detect & write protect for controller 0 */
zylonite_mmc_slot[0].gpio_cd = mfp_to_gpio(MFP_PIN_GPIO1);
zylonite_mmc_slot[0].gpio_wp = mfp_to_gpio(MFP_PIN_GPIO5);
/* WM9713 IRQ */
wm9713_irq = mfp_to_gpio(MFP_PIN_GPIO15);
}