diff options
-rw-r--r-- | arch/arm/mach-omap1/board-nokia770.c | 43 | ||||
-rw-r--r-- | arch/arm/mach-omap1/board-sx1-mmc.c | 1 | ||||
-rw-r--r-- | arch/arm/mach-omap2/board-n8x0.c | 85 | ||||
-rw-r--r-- | drivers/mmc/host/omap.c | 46 | ||||
-rw-r--r-- | include/linux/platform_data/mmc-omap.h | 2 |
5 files changed, 83 insertions, 94 deletions
diff --git a/arch/arm/mach-omap1/board-nokia770.c b/arch/arm/mach-omap1/board-nokia770.c index dde74694cb4c..9583417f5bea 100644 --- a/arch/arm/mach-omap1/board-nokia770.c +++ b/arch/arm/mach-omap1/board-nokia770.c @@ -184,27 +184,23 @@ static struct omap_usb_config nokia770_usb_config __initdata = { #if IS_ENABLED(CONFIG_MMC_OMAP) -#define NOKIA770_GPIO_MMC_POWER 41 -#define NOKIA770_GPIO_MMC_SWITCH 23 - -static int nokia770_mmc_set_power(struct device *dev, int slot, int power_on, - int vdd) -{ - gpio_set_value(NOKIA770_GPIO_MMC_POWER, power_on); - return 0; -} - -static int nokia770_mmc_get_cover_state(struct device *dev, int slot) -{ - return gpio_get_value(NOKIA770_GPIO_MMC_SWITCH); -} +static struct gpiod_lookup_table nokia770_mmc_gpio_table = { + .dev_id = "mmci-omap.1", + .table = { + /* Slot index 0, VSD power, GPIO 41 */ + GPIO_LOOKUP_IDX("gpio-32-47", 9, + "vsd", 0, GPIO_ACTIVE_HIGH), + /* Slot index 0, switch, GPIO 23 */ + GPIO_LOOKUP_IDX("gpio-16-31", 7, + "cover", 0, GPIO_ACTIVE_HIGH), + { } + }, +}; static struct omap_mmc_platform_data nokia770_mmc2_data = { .nr_slots = 1, .max_freq = 12000000, .slots[0] = { - .set_power = nokia770_mmc_set_power, - .get_cover_state = nokia770_mmc_get_cover_state, .ocr_mask = MMC_VDD_32_33|MMC_VDD_33_34, .name = "mmcblk", }, @@ -214,20 +210,7 @@ static struct omap_mmc_platform_data *nokia770_mmc_data[OMAP16XX_NR_MMC]; static void __init nokia770_mmc_init(void) { - int ret; - - ret = gpio_request(NOKIA770_GPIO_MMC_POWER, "MMC power"); - if (ret < 0) - return; - gpio_direction_output(NOKIA770_GPIO_MMC_POWER, 0); - - ret = gpio_request(NOKIA770_GPIO_MMC_SWITCH, "MMC cover"); - if (ret < 0) { - gpio_free(NOKIA770_GPIO_MMC_POWER); - return; - } - gpio_direction_input(NOKIA770_GPIO_MMC_SWITCH); - + gpiod_add_lookup_table(&nokia770_mmc_gpio_table); /* Only the second MMC controller is used */ nokia770_mmc_data[1] = &nokia770_mmc2_data; omap1_init_mmc(nokia770_mmc_data, OMAP16XX_NR_MMC); diff --git a/arch/arm/mach-omap1/board-sx1-mmc.c b/arch/arm/mach-omap1/board-sx1-mmc.c index f1c160924dfe..f183a8448a7b 100644 --- a/arch/arm/mach-omap1/board-sx1-mmc.c +++ b/arch/arm/mach-omap1/board-sx1-mmc.c @@ -9,7 +9,6 @@ * Copyright (C) 2007 Instituto Nokia de Tecnologia - INdT */ -#include <linux/gpio.h> #include <linux/platform_device.h> #include "hardware.h" diff --git a/arch/arm/mach-omap2/board-n8x0.c b/arch/arm/mach-omap2/board-n8x0.c index 3353b0a923d9..50b88eb23f9f 100644 --- a/arch/arm/mach-omap2/board-n8x0.c +++ b/arch/arm/mach-omap2/board-n8x0.c @@ -11,6 +11,7 @@ #include <linux/clk.h> #include <linux/delay.h> #include <linux/gpio.h> +#include <linux/gpio/machine.h> #include <linux/init.h> #include <linux/io.h> #include <linux/irq.h> @@ -170,22 +171,32 @@ static struct spi_board_info n800_spi_board_info[] __initdata = { * GPIO23 and GPIO9 slot 2 EMMC on N810 * */ -#define N8X0_SLOT_SWITCH_GPIO 96 -#define N810_EMMC_VSD_GPIO 23 -#define N810_EMMC_VIO_GPIO 9 - static int slot1_cover_open; static int slot2_cover_open; static struct device *mmc_device; -static int n8x0_mmc_switch_slot(struct device *dev, int slot) -{ -#ifdef CONFIG_MMC_DEBUG - dev_dbg(dev, "Choose slot %d\n", slot + 1); -#endif - gpio_set_value(N8X0_SLOT_SWITCH_GPIO, slot); - return 0; -} +static struct gpiod_lookup_table nokia8xx_mmc_gpio_table = { + .dev_id = "mmci-omap.0", + .table = { + /* Slot switch, GPIO 96 */ + GPIO_LOOKUP("gpio-80-111", 16, + "switch", GPIO_ACTIVE_HIGH), + { } + }, +}; + +static struct gpiod_lookup_table nokia810_mmc_gpio_table = { + .dev_id = "mmci-omap.0", + .table = { + /* Slot index 1, VSD power, GPIO 23 */ + GPIO_LOOKUP_IDX("gpio-16-31", 7, + "vsd", 1, GPIO_ACTIVE_HIGH), + /* Slot index 1, VIO power, GPIO 9 */ + GPIO_LOOKUP_IDX("gpio-0-15", 9, + "vsd", 1, GPIO_ACTIVE_HIGH), + { } + }, +}; static int n8x0_mmc_set_power_menelaus(struct device *dev, int slot, int power_on, int vdd) @@ -256,31 +267,13 @@ static int n8x0_mmc_set_power_menelaus(struct device *dev, int slot, return 0; } -static void n810_set_power_emmc(struct device *dev, - int power_on) -{ - dev_dbg(dev, "Set EMMC power %s\n", power_on ? "on" : "off"); - - if (power_on) { - gpio_set_value(N810_EMMC_VSD_GPIO, 1); - msleep(1); - gpio_set_value(N810_EMMC_VIO_GPIO, 1); - msleep(1); - } else { - gpio_set_value(N810_EMMC_VIO_GPIO, 0); - msleep(50); - gpio_set_value(N810_EMMC_VSD_GPIO, 0); - msleep(50); - } -} - static int n8x0_mmc_set_power(struct device *dev, int slot, int power_on, int vdd) { if (board_is_n800() || slot == 0) return n8x0_mmc_set_power_menelaus(dev, slot, power_on, vdd); - n810_set_power_emmc(dev, power_on); + /* The n810 power will be handled by GPIO code in the driver */ return 0; } @@ -418,13 +411,6 @@ static void n8x0_mmc_shutdown(struct device *dev) static void n8x0_mmc_cleanup(struct device *dev) { menelaus_unregister_mmc_callback(); - - gpio_free(N8X0_SLOT_SWITCH_GPIO); - - if (board_is_n810()) { - gpio_free(N810_EMMC_VSD_GPIO); - gpio_free(N810_EMMC_VIO_GPIO); - } } /* @@ -433,7 +419,6 @@ static void n8x0_mmc_cleanup(struct device *dev) */ static struct omap_mmc_platform_data mmc1_data = { .nr_slots = 0, - .switch_slot = n8x0_mmc_switch_slot, .init = n8x0_mmc_late_init, .cleanup = n8x0_mmc_cleanup, .shutdown = n8x0_mmc_shutdown, @@ -463,14 +448,9 @@ static struct omap_mmc_platform_data mmc1_data = { static struct omap_mmc_platform_data *mmc_data[OMAP24XX_NR_MMC]; -static struct gpio n810_emmc_gpios[] __initdata = { - { N810_EMMC_VSD_GPIO, GPIOF_OUT_INIT_LOW, "MMC slot 2 Vddf" }, - { N810_EMMC_VIO_GPIO, GPIOF_OUT_INIT_LOW, "MMC slot 2 Vdd" }, -}; - static void __init n8x0_mmc_init(void) { - int err; + gpiod_add_lookup_table(&nokia8xx_mmc_gpio_table); if (board_is_n810()) { mmc1_data.slots[0].name = "external"; @@ -483,20 +463,7 @@ static void __init n8x0_mmc_init(void) */ mmc1_data.slots[1].name = "internal"; mmc1_data.slots[1].ban_openended = 1; - } - - err = gpio_request_one(N8X0_SLOT_SWITCH_GPIO, GPIOF_OUT_INIT_LOW, - "MMC slot switch"); - if (err) - return; - - if (board_is_n810()) { - err = gpio_request_array(n810_emmc_gpios, - ARRAY_SIZE(n810_emmc_gpios)); - if (err) { - gpio_free(N8X0_SLOT_SWITCH_GPIO); - return; - } + gpiod_add_lookup_table(&nokia810_mmc_gpio_table); } mmc1_data.nr_slots = 2; diff --git a/drivers/mmc/host/omap.c b/drivers/mmc/host/omap.c index ce78edfb402b..a14af21f12da 100644 --- a/drivers/mmc/host/omap.c +++ b/drivers/mmc/host/omap.c @@ -26,6 +26,7 @@ #include <linux/clk.h> #include <linux/scatterlist.h> #include <linux/slab.h> +#include <linux/gpio/consumer.h> #include <linux/platform_data/mmc-omap.h> @@ -111,6 +112,9 @@ struct mmc_omap_slot { struct mmc_request *mrq; struct mmc_omap_host *host; struct mmc_host *mmc; + struct gpio_desc *vsd; + struct gpio_desc *vio; + struct gpio_desc *cover; struct omap_mmc_slot_data *pdata; }; @@ -133,6 +137,7 @@ struct mmc_omap_host { int irq; unsigned char bus_mode; unsigned int reg_shift; + struct gpio_desc *slot_switch; struct work_struct cmd_abort_work; unsigned abort:1; @@ -216,8 +221,13 @@ no_claim: if (host->current_slot != slot) { OMAP_MMC_WRITE(host, CON, slot->saved_con & 0xFC00); - if (host->pdata->switch_slot != NULL) - host->pdata->switch_slot(mmc_dev(slot->mmc), slot->id); + if (host->slot_switch) + /* + * With two slots and a simple GPIO switch, setting + * the GPIO to 0 selects slot ID 0, setting it to 1 + * selects slot ID 1. + */ + gpiod_set_value(host->slot_switch, slot->id); host->current_slot = slot; } @@ -297,6 +307,9 @@ static void mmc_omap_release_slot(struct mmc_omap_slot *slot, int clk_enabled) static inline int mmc_omap_cover_is_open(struct mmc_omap_slot *slot) { + /* If we have a GPIO then use that */ + if (slot->cover) + return gpiod_get_value(slot->cover); if (slot->pdata->get_cover_state) return slot->pdata->get_cover_state(mmc_dev(slot->mmc), slot->id); @@ -1106,6 +1119,11 @@ static void mmc_omap_set_power(struct mmc_omap_slot *slot, int power_on, host = slot->host; + if (slot->vsd) + gpiod_set_value(slot->vsd, power_on); + if (slot->vio) + gpiod_set_value(slot->vio, power_on); + if (slot->pdata->set_power != NULL) slot->pdata->set_power(mmc_dev(slot->mmc), slot->id, power_on, vdd); @@ -1240,6 +1258,23 @@ static int mmc_omap_new_slot(struct mmc_omap_host *host, int id) slot->power_mode = MMC_POWER_UNDEFINED; slot->pdata = &host->pdata->slots[id]; + /* Check for some optional GPIO controls */ + slot->vsd = gpiod_get_index_optional(host->dev, "vsd", + id, GPIOD_OUT_LOW); + if (IS_ERR(slot->vsd)) + return dev_err_probe(host->dev, PTR_ERR(slot->vsd), + "error looking up VSD GPIO\n"); + slot->vio = gpiod_get_index_optional(host->dev, "vio", + id, GPIOD_OUT_LOW); + if (IS_ERR(slot->vio)) + return dev_err_probe(host->dev, PTR_ERR(slot->vio), + "error looking up VIO GPIO\n"); + slot->cover = gpiod_get_index_optional(host->dev, "cover", + id, GPIOD_IN); + if (IS_ERR(slot->cover)) + return dev_err_probe(host->dev, PTR_ERR(slot->cover), + "error looking up cover switch GPIO\n"); + host->slots[id] = slot; mmc->caps = 0; @@ -1349,6 +1384,13 @@ static int mmc_omap_probe(struct platform_device *pdev) if (IS_ERR(host->virt_base)) return PTR_ERR(host->virt_base); + host->slot_switch = gpiod_get_optional(host->dev, "switch", + GPIOD_OUT_LOW); + if (IS_ERR(host->slot_switch)) + return dev_err_probe(host->dev, PTR_ERR(host->slot_switch), + "error looking up slot switch GPIO\n"); + + INIT_WORK(&host->slot_release_work, mmc_omap_slot_release_work); INIT_WORK(&host->send_stop_work, mmc_omap_send_stop_work); diff --git a/include/linux/platform_data/mmc-omap.h b/include/linux/platform_data/mmc-omap.h index 91051e9907f3..054d0c3c5ec5 100644 --- a/include/linux/platform_data/mmc-omap.h +++ b/include/linux/platform_data/mmc-omap.h @@ -20,8 +20,6 @@ struct omap_mmc_platform_data { * maximum frequency on the MMC bus */ unsigned int max_freq; - /* switch the bus to a new slot */ - int (*switch_slot)(struct device *dev, int slot); /* initialize board-specific MMC functionality, can be NULL if * not supported */ int (*init)(struct device *dev); |