diff options
| author | Tomasz Figa <t.figa@samsung.com> | 2012-11-16 14:28:17 (GMT) |
|---|---|---|
| committer | Chris Ball <cjb@laptop.org> | 2012-12-06 18:55:01 (GMT) |
| commit | b96efccb8fc9939605599e5b2c026644973cc92d (patch) | |
| tree | cac505437daeb67208ede0177573747dd2618990 /drivers | |
| parent | b1b8fea94f4c71b5503b7e29974635121f44b302 (diff) | |
| download | linux-b96efccb8fc9939605599e5b2c026644973cc92d.tar.xz | |
mmc: host: sdhci-s3c: Add support for pinctrl
This patch adds support for pin configuration using pinctrl subsystem
to the sdhci-s3c driver.
Signed-off-by: Tomasz Figa <t.figa@samsung.com>
Acked-by: Thomas Abraham <thomas.abraham@linaro.org>
Signed-off-by: Chris Ball <cjb@laptop.org>
Diffstat (limited to 'drivers')
| -rw-r--r-- | drivers/mmc/host/sdhci-s3c.c | 12 |
1 files changed, 10 insertions, 2 deletions
diff --git a/drivers/mmc/host/sdhci-s3c.c b/drivers/mmc/host/sdhci-s3c.c index 93c5d62..9969769 100644 --- a/drivers/mmc/host/sdhci-s3c.c +++ b/drivers/mmc/host/sdhci-s3c.c @@ -24,6 +24,7 @@ #include <linux/of_gpio.h> #include <linux/pm.h> #include <linux/pm_runtime.h> +#include <linux/pinctrl/consumer.h> #include <linux/mmc/host.h> @@ -57,6 +58,7 @@ struct sdhci_s3c { int ext_cd_irq; int ext_cd_gpio; int *gpios; + struct pinctrl *pctrl; struct clk *clk_io; struct clk *clk_bus[MAX_BUS_CLK]; @@ -484,8 +486,9 @@ static int __devinit sdhci_s3c_parse_dt(struct device *dev, return -EINVAL; } - dev_info(dev, "assuming no card detect line available\n"); - pdata->cd_type = S3C_SDHCI_CD_NONE; + /* 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) { @@ -503,6 +506,9 @@ static int __devinit sdhci_s3c_parse_dt(struct device *dev, } 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); @@ -581,6 +587,8 @@ static int __devinit 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) |