On Tue, Jul 05, 2016 at 06:04:10AM +0200, Andreas Färber wrote:
> Enable the SDHC node and model the SDIO_PWR GPIO as a regulator.
> Use the SD card as default trigger for the red LED.
>
> Cc: Ettore Chimenti <ettore.chimenti@xxxxxxxx>
> Signed-off-by: Andreas Färber <afaerber@xxxxxxx>
> ---
>
>
> arch/arm/boot/dts/imx6sx-udoo-neo.dtsi | 34 ++++++++++++++++++++++++++++++++++
> 1 file changed, 34 insertions(+)
>
> diff --git a/arch/arm/boot/dts/imx6sx-udoo-neo.dtsi b/arch/arm/boot/dts/imx6sx-udoo-neo.dtsi
> index e074409644d8..85f5e8606dab 100644
> --- a/arch/arm/boot/dts/imx6sx-udoo-neo.dtsi
> +++ b/arch/arm/boot/dts/imx6sx-udoo-neo.dtsi
> @@ -56,6 +56,7 @@
> label = "udoo-neo:red:mmc";
> gpios = <&gpio6 0 GPIO_ACTIVE_HIGH>;
> default-state = "off";
> + linux,default-trigger = "mmc0";
> };
>
> orange {
> @@ -64,6 +65,17 @@
> default-state = "keep";
> };
> };
> +
> + sdio_pwr_reg: sd-gpio-regulator {
> + compatible = "regulator-fixed";
> + gpio = <&gpio6 1 GPIO_ACTIVE_HIGH>;
> + enable-active-high;
> + regulator-name = "SDIO_PWR";
> + regulator-min-microvolt = <3300000>;
> + regulator-max-microvolt = <3300000>;
> + regulator-boot-on;
> + regulator-always-on;
> + };
Is it correct to model SDIO power control GPIO as a boot-on and
always-on fixed regulator? It will be powered-on even when SDIO driver
is not enabled or loaded.
Shawn
> };
>
> &cpu0 {
> @@ -230,6 +242,17 @@
> <MX6SX_PAD_CSI_DATA06__UART6_RTS_B 0x1b0b1>,
> <MX6SX_PAD_CSI_DATA07__UART6_CTS_B 0x1b0b1>;
> };
> +
> + pinctrl_usdhc2: usdhc2grp {
> + fsl,pins =
> + <MX6SX_PAD_SD2_CMD__USDHC2_CMD 0x17059>,
> + <MX6SX_PAD_SD2_CLK__USDHC2_CLK 0x10059>,
> + <MX6SX_PAD_SD2_DATA0__USDHC2_DATA0 0x17059>,
> + <MX6SX_PAD_SD2_DATA1__USDHC2_DATA1 0x17059>,
> + <MX6SX_PAD_SD2_DATA2__USDHC2_DATA2 0x17059>,
> + <MX6SX_PAD_SD2_DATA3__USDHC2_DATA3 0x17059>,
> + <MX6SX_PAD_SD1_DATA0__GPIO6_IO_2 0x17059>; /* CD */
> + };
> };
> };
>
> @@ -259,3 +282,14 @@
> uart-has-rtscts;
> status = "disabled";
> };
> +
> +&usdhc2 {
> + pinctrl-names = "default";
> + pinctrl-0 = <&pinctrl_usdhc2>;
> + bus-width = <4>;
> + cd-gpios = <&gpio6 2 GPIO_ACTIVE_LOW>;
> + no-1-8-v;
> + keep-power-in-suspend;
> + wakeup-source;
> + status = "okay";
> +};
> --
> 2.6.6
>
>
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