ARM: dts: imx6ul-14x14-evk: Pass the "broken-cd" property
authorFabio Estevam <festevam@gmail.com>
Tue, 7 Jan 2020 00:11:17 +0000 (21:11 -0300)
committerShawn Guo <shawnguo@kernel.org>
Thu, 9 Jan 2020 10:45:22 +0000 (18:45 +0800)
imx6ul-14x14-evk does not have a GPIO dedicated for reading the card
detect pin on the eSDHC2 micro-SD port.

Pass the "broken-cd" property to describe the absence of the card detect
GPIO so that polling must be used.

According to Documentation/devicetree/bindings/mmc/mmc-controller.yaml:

  broken-cd:
    $ref: /schemas/types.yaml#/definitions/flag
    description:
      There is no card detection available; polling must be used.

Even though no error is oberved in the kernel, the lack of the
'broken-cd' property caused the micro-SD to not be detected in U-Boot,
so let's improve the device tree description to make it more accurate.

Signed-off-by: Fabio Estevam <festevam@gmail.com>
Signed-off-by: Shawn Guo <shawnguo@kernel.org>
arch/arm/boot/dts/imx6ul-14x14-evk.dtsi

index 1506eb1..4a8d324 100644 (file)
        pinctrl-names = "default";
        pinctrl-0 = <&pinctrl_usdhc2>;
        no-1-8-v;
+       broken-cd;
        keep-power-in-suspend;
        wakeup-source;
        status = "okay";