| Message ID | 20200814125338.2428209-1-aford173@gmail.com (mailing list archive) |
|---|---|
| State | New, archived |
| Headers | show |
| Series | ARM: dts: logicpd-som-lv-baseboard: Fix broken audio | expand |
* Adam Ford <aford173@gmail.com> [200814 15:53]: > Older versions of U-Boot would pinmux the whole board, but as > the bootloader got updated, it started to only pinmux the pins > it needed, and expected Linux to configure what it needed. > > Unfortunately this caused an issue with the audio, because the > mcbsp2 pins were configured in the device tree but never > referenced by the driver. When U-Boot stopped muxing the audio > pins, the audio died. > > This patch adds the references to the associate the pin controller > with the mcbsp2 driver which makes audio operate again. Thanks applying into fixes. Tony
diff --git a/arch/arm/boot/dts/logicpd-som-lv-baseboard.dtsi b/arch/arm/boot/dts/logicpd-som-lv-baseboard.dtsi index 79e9e24328b9..395e05f10d36 100644 --- a/arch/arm/boot/dts/logicpd-som-lv-baseboard.dtsi +++ b/arch/arm/boot/dts/logicpd-som-lv-baseboard.dtsi @@ -51,6 +51,8 @@ &mcbsp2 { status = "okay"; + pinctrl-names = "default"; + pinctrl-0 = <&mcbsp2_pins>; }; &charger {
Older versions of U-Boot would pinmux the whole board, but as the bootloader got updated, it started to only pinmux the pins it needed, and expected Linux to configure what it needed. Unfortunately this caused an issue with the audio, because the mcbsp2 pins were configured in the device tree but never referenced by the driver. When U-Boot stopped muxing the audio pins, the audio died. This patch adds the references to the associate the pin controller with the mcbsp2 driver which makes audio operate again. Fixes: 5cb8b0fa55a9 ("ARM: dts: Move most of logicpd-som-lv-37xx-devkit.dts to logicpd-som-lv-baseboard.dtsi") Signed-off-by: Adam Ford <aford173@gmail.com>