[ARM] pxa/littleton: add support for the Micro-SD slot (MMC1) (361778d6) · Commits · e / devices / android_kernel_oneplus_sm8150

arch/arm/mach-pxa/littleton.c

+63 −0

Original line number	Diff line number	Diff line
		@@ -42,6 +42,7 @@
		#include <mach/pxa300.h>
		#include <mach/pxafb.h>
		#include <mach/ssp.h>
		#include <mach/mmc.h>
		#include <mach/pxa2xx_spi.h>
		#include <plat/i2c.h>
		#include <mach/pxa27x_keypad.h>
		@@ -50,6 +51,8 @@

		#include "generic.h"

		#define GPIO_MMC1_CARD_DETECT mfp_to_gpio(MFP_PIN_GPIO15)

		/* Littleton MFP configurations */
		static mfp_cfg_t littleton_mfp_cfg[] __initdata = {
		/* LCD */
		@@ -98,6 +101,15 @@ static mfp_cfg_t littleton_mfp_cfg[] __initdata = {
		GPIO123_KP_MKOUT_2,
		GPIO124_KP_MKOUT_3,
		GPIO125_KP_MKOUT_4,

		/* MMC1 */
		GPIO3_MMC1_DAT0,
		GPIO4_MMC1_DAT1,
		GPIO5_MMC1_DAT2,
		GPIO6_MMC1_DAT3,
		GPIO7_MMC1_CLK,
		GPIO8_MMC1_CMD,
		GPIO15_GPIO, /* card detect */
		};

		static struct resource smc91x_resources[] = {
		@@ -252,6 +264,56 @@ static void __init littleton_init_keypad(void)
		static inline void littleton_init_keypad(void) {}
		#endif

		#if defined(CONFIG_MMC_PXA) \|\| defined(CONFIG_MMC_PXA_MODULE)
		static int littleton_mci_init(struct device *dev,
		irq_handler_t littleton_detect_int, void *data)
		{
		int err, gpio_cd = GPIO_MMC1_CARD_DETECT;

		err = gpio_request(gpio_cd, "mmc card detect");
		if (err)
		goto err_request_cd;

		gpio_direction_input(gpio_cd);

		err = request_irq(gpio_to_irq(gpio_cd), littleton_detect_int,
		IRQF_TRIGGER_RISING \| IRQF_TRIGGER_FALLING,
		"mmc card detect", data);
		if (err) {
		dev_err(dev, "failed to request card detect IRQ\n");
		goto err_request_irq;
		}
		return 0;

		err_request_irq:
		gpio_free(gpio_cd);
		err_request_cd:
		return err;
		}

		static void littleton_mci_exit(struct device dev, void data)
		{
		int gpio_cd = GPIO_MMC1_CARD_DETECT;

		free_irq(gpio_to_irq(gpio_cd), data);
		gpio_free(gpio_cd);
		}

		static struct pxamci_platform_data littleton_mci_platform_data = {
		.detect_delay = 20,
		.ocr_mask = MMC_VDD_32_33 \| MMC_VDD_33_34,
		.init = littleton_mci_init,
		.exit = littleton_mci_exit,
		};

		static void __init littleton_init_mmc(void)
		{
		pxa_set_mci_info(&littleton_mci_platform_data);
		}
		#else
		static inline void littleton_init_mmc(void) {}
		#endif

		#if defined(CONFIG_MTD_NAND_PXA3xx) \|\| defined(CONFIG_MTD_NAND_PXA3xx_MODULE)
		static struct mtd_partition littleton_nand_partitions[] = {
		[0] = {
		@@ -392,6 +454,7 @@ static void __init littleton_init(void)

		littleton_init_spi();
		littleton_init_i2c();
		littleton_init_mmc();
		littleton_init_lcd();
		littleton_init_keypad();
		littleton_init_nand();