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mmc: dw_mmc: let device core setup the default pin configuration

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With device core now able to setup the default pin configuration,
the pin configuration code based on the deprecated Samsung specific
gpio bindings is removed.

Signed-off-by: Thomas Abraham <thomas.abraham@linaro.org>
Acked-by: Linus Walleij <linus.walleij@linaro.org>
Reviewed-by: Doug Anderson <dianders@chromium.org>
Tested-by: Doug Anderson <dianders@chromium.org>
Acked-by: Seungwon Jeon <tgih.jun@samsung.com>
Signed-off-by: Chris Ball <cjb@laptop.org>
This commit is contained in:
Thomas Abraham 2013-04-11 17:54:07 +05:30 committed by Chris Ball
parent 1d53196a0d
commit 32d781a310
3 changed files with 0 additions and 49 deletions
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38
drivers/mmc/host/dw_mmc-exynos.c
View File

@ -152,43 +152,6 @@ static int dw_mci_exynos_parse_dt(struct dw_mci *host)
return 0;
}
static int dw_mci_exynos_setup_bus(struct dw_mci *host,
struct device_node *slot_np, u8 bus_width)
{
int idx, gpio, ret;
if (!slot_np)
return -EINVAL;
/* cmd + clock + bus-width pins */
for (idx = 0; idx < NUM_PINS(bus_width); idx++) {
gpio = of_get_gpio(slot_np, idx);
if (!gpio_is_valid(gpio)) {
dev_err(host->dev, "invalid gpio: %d\n", gpio);
return -EINVAL;
}
ret = devm_gpio_request(host->dev, gpio, "dw-mci-bus");
if (ret) {
dev_err(host->dev, "gpio [%d] request failed\n", gpio);
return -EBUSY;
}
}
if (host->pdata->quirks & DW_MCI_QUIRK_BROKEN_CARD_DETECTION)
return 0;
gpio = of_get_named_gpio(slot_np, "samsung,cd-pinmux-gpio", 0);
if (gpio_is_valid(gpio)) {
if (devm_gpio_request(host->dev, gpio, "dw-mci-cd"))
dev_err(host->dev, "gpio [%d] request failed\n", gpio);
} else {
dev_info(host->dev, "cd gpio not available");
}
return 0;
}
/* Common capabilities of Exynos4/Exynos5 SoC */
static unsigned long exynos_dwmmc_caps[4] = {
MMC_CAP_UHS_DDR50 | MMC_CAP_1_8V_DDR |
@ -205,7 +168,6 @@ static const struct dw_mci_drv_data exynos_drv_data = {
.prepare_command = dw_mci_exynos_prepare_command,
.set_ios = dw_mci_exynos_set_ios,
.parse_dt = dw_mci_exynos_parse_dt,
.setup_bus = dw_mci_exynos_setup_bus,
};
static const struct of_device_id dw_mci_exynos_match[] = {

8
drivers/mmc/host/dw_mmc.c
View File

@ -1952,14 +1952,6 @@ static int dw_mci_init_slot(struct dw_mci *host, unsigned int id)
else
bus_width = 1;
if (drv_data && drv_data->setup_bus) {
struct device_node *slot_np;
slot_np = dw_mci_of_find_slot_node(host->dev, slot->id);
ret = drv_data->setup_bus(host, slot_np, bus_width);
if (ret)
goto err_setup_bus;
}
switch (bus_width) {
case 8:
mmc->caps |= MMC_CAP_8_BIT_DATA;

3
drivers/mmc/host/dw_mmc.h
View File

@ -190,7 +190,6 @@ extern int dw_mci_resume(struct dw_mci *host);
* @prepare_command: handle CMD register extensions.
* @set_ios: handle bus specific extensions.
* @parse_dt: parse implementation specific device tree properties.
* @setup_bus: initialize io-interface
*
* Provide controller implementation specific extensions. The usage of this
* data structure is fully optional and usage of each member in this structure
@ -203,7 +202,5 @@ struct dw_mci_drv_data {
void (*prepare_command)(struct dw_mci *host, u32 *cmdr);
void (*set_ios)(struct dw_mci *host, struct mmc_ios *ios);
int (*parse_dt)(struct dw_mci *host);
int (*setup_bus)(struct dw_mci *host,
struct device_node *slot_np, u8 bus_width);
};
#endif /* _DW_MMC_H_ */