Messages in this thread Patch in this message | | | From | Dong Aisheng <> | Subject | [PATCH v2 3/3] ARM: imx6q: switch to use pinctrl driver | Date | Fri, 20 Apr 2012 22:58:36 +0800 |
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From: Dong Aisheng <dong.aisheng@linaro.org>
Signed-off-by: Dong Aisheng <dong.aisheng@linaro.org>
--- This is not a formal patch and is only used for test since before the pinctrl core handle dummy state is in, enable pinctrl in driver will break other platforms.
ChangeLog v1->v2: * using updated binding --- arch/arm/boot/dts/imx6q-arm2.dts | 2 ++ arch/arm/boot/dts/imx6q.dtsi | 17 +++++++++++++++++ arch/arm/mach-imx/Kconfig | 2 ++ drivers/mmc/host/sdhci-esdhc-imx.c | 12 ++++++++++++ 4 files changed, 33 insertions(+), 0 deletions(-)
diff --git a/arch/arm/boot/dts/imx6q-arm2.dts b/arch/arm/boot/dts/imx6q-arm2.dts index ce1c823..68b1d8d 100644 --- a/arch/arm/boot/dts/imx6q-arm2.dts +++ b/arch/arm/boot/dts/imx6q-arm2.dts @@ -44,6 +44,8 @@ fsl,card-wired; vmmc-supply = <®_3p3v>; status = "okay"; + pinctrl-names = "default"; + pinctrl-0 = <&pinctrl_usdhc4_1>; }; uart4: uart@021f0000 { diff --git a/arch/arm/boot/dts/imx6q.dtsi b/arch/arm/boot/dts/imx6q.dtsi index 4905f51..8cbd88b 100644 --- a/arch/arm/boot/dts/imx6q.dtsi +++ b/arch/arm/boot/dts/imx6q.dtsi @@ -386,7 +386,24 @@ }; iomuxc@020e0000 { + compatible = "fsl,imx6q-iomuxc"; reg = <0x020e0000 0x4000>; + + /* shared pinctrl settings */ + usdhc4 { + pinctrl_usdhc4_1: usdhc4grp-1 { + fsl,pins = <1386 0x17059 /* MX6Q_PAD_SD4_CMD__USDHC4_CMD */ + 1392 0x17059 /* MX6Q_PAD_SD4_CLK__USDHC4_CLK */ + 1462 0x17059 /* MX6Q_PAD_SD4_DAT0__USDHC4_DAT0 */ + 1470 0x17059 /* MX6Q_PAD_SD4_DAT1__USDHC4_DAT1 */ + 1478 0x17059 /* MX6Q_PAD_SD4_DAT2__USDHC4_DAT2 */ + 1486 0x17059 /* MX6Q_PAD_SD4_DAT3__USDHC4_DAT3 */ + 1493 0x17059 /* MX6Q_PAD_SD4_DAT4__USDHC4_DAT4 */ + 1501 0x17059 /* MX6Q_PAD_SD4_DAT5__USDHC4_DAT5 */ + 1509 0x17059 /* MX6Q_PAD_SD4_DAT6__USDHC4_DAT6 */ + 1517 0x17059>; /* MX6Q_PAD_SD4_DAT7__USDHC4_DAT7 */ + }; + }; }; dcic@020e4000 { /* DCIC1 */ diff --git a/arch/arm/mach-imx/Kconfig b/arch/arm/mach-imx/Kconfig index 7561eca..e0fc67c 100644 --- a/arch/arm/mach-imx/Kconfig +++ b/arch/arm/mach-imx/Kconfig @@ -842,6 +842,8 @@ config SOC_IMX6Q select HAVE_IMX_MMDC select HAVE_IMX_SRC select HAVE_SMP + select PINCTRL + select PINCTRL_IMX6Q select USE_OF help diff --git a/drivers/mmc/host/sdhci-esdhc-imx.c b/drivers/mmc/host/sdhci-esdhc-imx.c index 6193a0d..84ef749 100644 --- a/drivers/mmc/host/sdhci-esdhc-imx.c +++ b/drivers/mmc/host/sdhci-esdhc-imx.c @@ -24,6 +24,7 @@ #include <linux/of.h> #include <linux/of_device.h> #include <linux/of_gpio.h> +#include <linux/pinctrl/consumer.h> #include <mach/esdhc.h> #include "sdhci-pltfm.h" #include "sdhci-esdhc.h" @@ -68,6 +69,7 @@ struct pltfm_imx_data { int flags; u32 scratchpad; enum imx_esdhc_type devtype; + struct pinctrl *p; struct esdhc_platform_data boarddata; }; @@ -467,6 +469,12 @@ static int __devinit sdhci_esdhc_imx_probe(struct platform_device *pdev) clk_prepare_enable(clk); pltfm_host->clk = clk; + imx_data->p = pinctrl_get_select_default(&pdev->dev); + if (IS_ERR(imx_data->p)) { + err = PTR_ERR(imx_data->p); + goto pin_err; + } + if (!is_imx25_esdhc(imx_data)) host->quirks |= SDHCI_QUIRK_BROKEN_TIMEOUT_VAL; @@ -559,6 +567,8 @@ no_card_detect_irq: gpio_free(boarddata->wp_gpio); no_card_detect_pin: no_board_data: + pinctrl_put(imx_data->p); +pin_err: clk_disable_unprepare(pltfm_host->clk); clk_put(pltfm_host->clk); err_clk_get: @@ -586,6 +596,8 @@ static int __devexit sdhci_esdhc_imx_remove(struct platform_device *pdev) gpio_free(boarddata->cd_gpio); } + pinctrl_put(imx_data->p); + clk_disable_unprepare(pltfm_host->clk); clk_put(pltfm_host->clk); kfree(imx_data); -- 1.7.0.4
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