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SubjectRe: [PATCH v2 3/3] ARM: imx6q: switch to use pinctrl driver
On 22:58 Fri 20 Apr     , Dong Aisheng wrote:
> 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 = <&reg_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 */
Can you on IMX have alternative onfiguration where you use as example just one
pin on a different pad?

Best Regards,
J.


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