diff options
Diffstat (limited to 'target/linux/mvebu/patches-3.8/009-mmc_mvsdio_add_pinctrl.patch')
| -rw-r--r-- | target/linux/mvebu/patches-3.8/009-mmc_mvsdio_add_pinctrl.patch | 66 |
1 files changed, 66 insertions, 0 deletions
diff --git a/target/linux/mvebu/patches-3.8/009-mmc_mvsdio_add_pinctrl.patch b/target/linux/mvebu/patches-3.8/009-mmc_mvsdio_add_pinctrl.patch new file mode 100644 index 000000000..394ca5b9f --- /dev/null +++ b/target/linux/mvebu/patches-3.8/009-mmc_mvsdio_add_pinctrl.patch @@ -0,0 +1,66 @@ +From patchwork Wed Jan 16 13:14:00 2013 +Content-Type: text/plain; charset="utf-8" +MIME-Version: 1.0 +Content-Transfer-Encoding: 7bit +Subject: [5/5] mmc: mvsdio: add pinctrl integration +Date: Wed, 16 Jan 2013 13:14:00 -0000 +From: Andrew Lunn <andrew@lunn.ch> +X-Patchwork-Id: 1987901 +Message-Id: <1358342040-7130-6-git-send-email-andrew@lunn.ch> +To: Jason Cooper <jason@lakedaemon.net> +Cc: linux ARM <linux-arm-kernel@lists.infradead.org>, + linux-mmc@vger.kernel.org, linux@arm.linux.org.uk, + Thomas Petazzoni <thomas.petazzoni@free-electrons.com>, + Andrew Lunn <andrew@lunn.ch> + +From: Thomas Petazzoni <thomas.petazzoni@free-electrons.com> + +On many Marvell SoCs, the pins used for the SDIO interface are part of +the MPP pins, that are muxable pins. In order to get the muxing of +those pins correct, this commit integrates the mvsdio driver with the +pinctrl infrastructure by calling devm_pinctrl_get_select_default() +during ->probe(). + +Note that we permit this function to fail because not all Marvell +platforms have yet been fully converted to using the pinctrl +infrastructure. + +Signed-off-by: Thomas Petazzoni <thomas.petazzoni@free-electrons.com> +Signed-off-by: Andrew Lunn <andrew@lunn.ch> +Tested-by: Stefan Peter <s.peter@mpl.ch> +Tested-by: Florian Fainelli <florian@openwrt.org> +Signed-off-by: Jason Cooper <jason@lakedaemon.net> + +--- +drivers/mmc/host/mvsdio.c | 6 ++++++ + 1 file changed, 6 insertions(+) + +--- a/drivers/mmc/host/mvsdio.c ++++ b/drivers/mmc/host/mvsdio.c +@@ -25,6 +25,7 @@ + #include <linux/of_irq.h> + #include <linux/mmc/host.h> + #include <linux/mmc/slot-gpio.h> ++#include <linux/pinctrl/consumer.h> + + #include <asm/sizes.h> + #include <asm/unaligned.h> +@@ -690,6 +691,7 @@ static int __init mvsd_probe(struct plat + struct resource *r; + int ret, irq; + int gpio_card_detect, gpio_write_protect; ++ struct pinctrl *pinctrl; + + r = platform_get_resource(pdev, IORESOURCE_MEM, 0); + irq = platform_get_irq(pdev, 0); +@@ -706,6 +708,10 @@ static int __init mvsd_probe(struct plat + host->mmc = mmc; + host->dev = &pdev->dev; + ++ pinctrl = devm_pinctrl_get_select_default(&pdev->dev); ++ if (IS_ERR(pinctrl)) ++ dev_warn(&pdev->dev, "no pins associated\n"); ++ + /* Some non-DT platforms do not pass a clock, and the clock + frequency is passed through platform_data. On DT platforms, + a clock must always be passed, even if there is no gatable |