mmc: sdhci-s3c: let device core setup the default pin configuration
With device core now able to setup the default pin configuration,
the call to devm_pinctrl_get_select_default can be removed. And
the pin configuration code based on the deprecated Samsung specific
gpio bindings is also removed.
Signed-off-by: Thomas Abraham <thomas.abraham@linaro.org>
Acked-by: Linus Walleij <linus.walleij@linaro.org>
Signed-off-by: Chris Ball <cjb@laptop.org>
diff --git a/drivers/mmc/host/sdhci-s3c.c b/drivers/mmc/host/sdhci-s3c.c
index 128b650..8cd966d 100644
--- a/drivers/mmc/host/sdhci-s3c.c
+++ b/drivers/mmc/host/sdhci-s3c.c
@@ -24,7 +24,6 @@
#include <linux/of_gpio.h>
#include <linux/pm.h>
#include <linux/pm_runtime.h>
-#include <linux/pinctrl/consumer.h>
#include <linux/mmc/host.h>
@@ -45,7 +44,6 @@
* @ioarea: The resource created when we claimed the IO area.
* @pdata: The platform data for this controller.
* @cur_clk: The index of the current bus clock.
- * @gpios: List of gpio numbers parsed from device tree.
* @clk_io: The clock for the internal bus interface.
* @clk_bus: The clocks that are available for the SD/MMC bus clock.
*/
@@ -57,8 +55,6 @@
unsigned int cur_clk;
int ext_cd_irq;
int ext_cd_gpio;
- int *gpios;
- struct pinctrl *pctrl;
struct clk *clk_io;
struct clk *clk_bus[MAX_BUS_CLK];
@@ -447,42 +443,32 @@
struct device_node *node = dev->of_node;
struct sdhci_s3c *ourhost = to_s3c(host);
u32 max_width;
- int gpio, cnt, ret;
+ int gpio;
/* if the bus-width property is not specified, assume width as 1 */
if (of_property_read_u32(node, "bus-width", &max_width))
max_width = 1;
pdata->max_width = max_width;
- ourhost->gpios = devm_kzalloc(dev, NUM_GPIOS(pdata->max_width) *
- sizeof(int), GFP_KERNEL);
- if (!ourhost->gpios)
- return -ENOMEM;
-
/* get the card detection method */
if (of_get_property(node, "broken-cd", NULL)) {
pdata->cd_type = S3C_SDHCI_CD_NONE;
- goto setup_bus;
+ return 0;
}
if (of_get_property(node, "non-removable", NULL)) {
pdata->cd_type = S3C_SDHCI_CD_PERMANENT;
- goto setup_bus;
+ return 0;
}
gpio = of_get_named_gpio(node, "cd-gpios", 0);
if (gpio_is_valid(gpio)) {
pdata->cd_type = S3C_SDHCI_CD_GPIO;
- goto found_cd;
- } else if (gpio != -ENOENT) {
- dev_err(dev, "invalid card detect gpio specified\n");
- return -EINVAL;
- }
-
- gpio = of_get_named_gpio(node, "samsung,cd-pinmux-gpio", 0);
- if (gpio_is_valid(gpio)) {
- pdata->cd_type = S3C_SDHCI_CD_INTERNAL;
- goto found_cd;
+ pdata->ext_cd_gpio = gpio;
+ ourhost->ext_cd_gpio = -1;
+ if (of_get_property(node, "cd-inverted", NULL))
+ pdata->ext_cd_gpio_invert = 1;
+ return 0;
} else if (gpio != -ENOENT) {
dev_err(dev, "invalid card detect gpio specified\n");
return -EINVAL;
@@ -490,45 +476,6 @@
/* assuming internal card detect that will be configured by pinctrl */
pdata->cd_type = S3C_SDHCI_CD_INTERNAL;
- goto setup_bus;
-
- found_cd:
- if (pdata->cd_type == S3C_SDHCI_CD_GPIO) {
- pdata->ext_cd_gpio = gpio;
- ourhost->ext_cd_gpio = -1;
- if (of_get_property(node, "cd-inverted", NULL))
- pdata->ext_cd_gpio_invert = 1;
- } else if (pdata->cd_type == S3C_SDHCI_CD_INTERNAL) {
- ret = devm_gpio_request(dev, gpio, "sdhci-cd");
- if (ret) {
- dev_err(dev, "card detect gpio request failed\n");
- return -EINVAL;
- }
- ourhost->ext_cd_gpio = gpio;
- }
-
- setup_bus:
- if (!IS_ERR(ourhost->pctrl))
- return 0;
-
- /* get the gpios for command, clock and data lines */
- for (cnt = 0; cnt < NUM_GPIOS(pdata->max_width); cnt++) {
- gpio = of_get_gpio(node, cnt);
- if (!gpio_is_valid(gpio)) {
- dev_err(dev, "invalid gpio[%d]\n", cnt);
- return -EINVAL;
- }
- ourhost->gpios[cnt] = gpio;
- }
-
- for (cnt = 0; cnt < NUM_GPIOS(pdata->max_width); cnt++) {
- ret = devm_gpio_request(dev, ourhost->gpios[cnt], "sdhci-gpio");
- if (ret) {
- dev_err(dev, "gpio[%d] request failed\n", cnt);
- return -EINVAL;
- }
- }
-
return 0;
}
#else
@@ -589,8 +536,6 @@
goto err_pdata_io_clk;
}
- sc->pctrl = devm_pinctrl_get_select_default(&pdev->dev);
-
if (pdev->dev.of_node) {
ret = sdhci_s3c_parse_dt(&pdev->dev, host, pdata);
if (ret)