diff options
author | Thomas Abraham <thomas.abraham@linaro.org> | 2013-03-06 17:06:16 +0530 |
---|---|---|
committer | Chris Ball <cjb@laptop.org> | 2013-03-22 12:33:21 -0400 |
commit | e19499ae10903807acbaa07a28d4b56d508ac339 (patch) | |
tree | 9d8014e641e9795803437c81582483e586424676 /drivers/mmc/host/sdhci-s3c.c | |
parent | 4a2d8ecce0be8240618e133077724abb5b36c1ef (diff) |
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>
Diffstat (limited to 'drivers/mmc/host/sdhci-s3c.c')
-rw-r--r-- | drivers/mmc/host/sdhci-s3c.c | 71 |
1 files changed, 8 insertions, 63 deletions
diff --git a/drivers/mmc/host/sdhci-s3c.c b/drivers/mmc/host/sdhci-s3c.c index 128b65030a0c..8cd966d25bec 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 @@ struct sdhci_s3c { 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]; @@ -447,88 +443,39 @@ static int sdhci_s3c_parse_dt(struct device *dev, 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; - } else if (gpio != -ENOENT) { - dev_err(dev, "invalid card detect gpio specified\n"); - return -EINVAL; - } - - /* 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; - } + } else if (gpio != -ENOENT) { + dev_err(dev, "invalid card detect gpio specified\n"); + return -EINVAL; } + /* assuming internal card detect that will be configured by pinctrl */ + pdata->cd_type = S3C_SDHCI_CD_INTERNAL; return 0; } #else @@ -589,8 +536,6 @@ static int sdhci_s3c_probe(struct platform_device *pdev) 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) |