diff options
| author | Linus Walleij <linus.walleij@linaro.org> | 2012-10-29 14:39:30 +0100 |
|---|---|---|
| committer | Russell King <rmk+kernel@arm.linux.org.uk> | 2012-11-04 10:31:46 +0000 |
| commit | a9a83785def8bf9142b37c86ffcb0fdc93fb851e (patch) | |
| tree | eaee4f1a310fa30f3d0c7e56f7d4b43e81587114 | |
| parent | 70ac09358cc52f3ddbf73555dc150d486a7133bb (diff) | |
| download | linux-stable-a9a83785def8bf9142b37c86ffcb0fdc93fb851e.tar.gz linux-stable-a9a83785def8bf9142b37c86ffcb0fdc93fb851e.tar.bz2 linux-stable-a9a83785def8bf9142b37c86ffcb0fdc93fb851e.zip | |
ARM: 7562/2: MMCI: fetch pinctrl handle and set default state
This fetches the pinctrl resource for the MMCI driver, and if
a "default" state is found, it is activated.
Acked-by: Ulf Hansson <ulf.hansson@linaro.org>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
| -rw-r--r-- | drivers/mmc/host/mmci.c | 18 | ||||
| -rw-r--r-- | drivers/mmc/host/mmci.h | 4 |
2 files changed, 22 insertions, 0 deletions
diff --git a/drivers/mmc/host/mmci.c b/drivers/mmc/host/mmci.c index cd0fbee0b1c0..9446c176e744 100644 --- a/drivers/mmc/host/mmci.c +++ b/drivers/mmc/host/mmci.c @@ -33,6 +33,7 @@ #include <linux/amba/mmci.h> #include <linux/pm_runtime.h> #include <linux/types.h> +#include <linux/pinctrl/consumer.h> #include <asm/div64.h> #include <asm/io.h> @@ -1366,6 +1367,23 @@ static int __devinit mmci_probe(struct amba_device *dev, mmc->f_max = min(host->mclk, fmax); dev_dbg(mmc_dev(mmc), "clocking block at %u Hz\n", mmc->f_max); + host->pinctrl = devm_pinctrl_get(&dev->dev); + if (IS_ERR(host->pinctrl)) { + ret = PTR_ERR(host->pinctrl); + goto clk_disable; + } + + host->pins_default = pinctrl_lookup_state(host->pinctrl, + PINCTRL_STATE_DEFAULT); + + /* enable pins to be muxed in and configured */ + if (!IS_ERR(host->pins_default)) { + ret = pinctrl_select_state(host->pinctrl, host->pins_default); + if (ret) + dev_warn(&dev->dev, "could not set default pins\n"); + } else + dev_warn(&dev->dev, "could not get default pinstate\n"); + #ifdef CONFIG_REGULATOR /* If we're using the regulator framework, try to fetch a regulator */ host->vcc = regulator_get(&dev->dev, "vmmc"); diff --git a/drivers/mmc/host/mmci.h b/drivers/mmc/host/mmci.h index d437ccf62d6b..d34d8c0add8e 100644 --- a/drivers/mmc/host/mmci.h +++ b/drivers/mmc/host/mmci.h @@ -195,6 +195,10 @@ struct mmci_host { unsigned int size; struct regulator *vcc; + /* pinctrl handles */ + struct pinctrl *pinctrl; + struct pinctrl_state *pins_default; + #ifdef CONFIG_DMA_ENGINE /* DMA stuff */ struct dma_chan *dma_current; |