#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",
},
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);
* Copyright (C) 2007 Instituto Nokia de Tecnologia - INdT
*/
-#include <linux/gpio.h>
#include <linux/platform_device.h>
#include "hardware.h"
#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>
* 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)
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;
}
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);
- }
}
/*
*/
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,
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";
*/
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;
#include <linux/clk.h>
#include <linux/scatterlist.h>
#include <linux/slab.h>
+#include <linux/gpio/consumer.h>
#include <linux/platform_data/mmc-omap.h>
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;
};
int irq;
unsigned char bus_mode;
unsigned int reg_shift;
+ struct gpio_desc *slot_switch;
struct work_struct cmd_abort_work;
unsigned abort:1;
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;
}
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);
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);
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;
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);
* 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);
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