Messages in this thread Patch in this message | | | From | Eric Anholt <> | Subject | [PATCH 3/3] arm64: Add the Raspberry Pi firmware's interface to the FXL6408. | Date | Mon, 19 Sep 2016 17:13:14 +0100 |
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This gets us hotplug detection of HDMI, so that graphics now works at boot. Tested with watching the output of xrandr while plugging and unplugging the HDMI cable.
Signed-off-by: Eric Anholt <eric@anholt.net> --- arch/arm64/boot/dts/broadcom/bcm2837-rpi-3-b.dts | 17 +++++++++++++++++ 1 file changed, 17 insertions(+)
diff --git a/arch/arm64/boot/dts/broadcom/bcm2837-rpi-3-b.dts b/arch/arm64/boot/dts/broadcom/bcm2837-rpi-3-b.dts index 7841b724e340..2460b47737e9 100644 --- a/arch/arm64/boot/dts/broadcom/bcm2837-rpi-3-b.dts +++ b/arch/arm64/boot/dts/broadcom/bcm2837-rpi-3-b.dts @@ -23,8 +23,25 @@ linux,default-trigger = "default-on"; }; }; + + soc { + fxl6408: firmware-gpio-128 { + compatible = "raspberrypi,firmware-gpio"; + gpio-controller; + #gpio-cells = <2>; + firmware = <&firmware>; + ngpios = <8>; + gpio-line-names = "BT_ON", "WL_ON", "", "LAN_RUN", "HPD_N", "CAM_GPIO0", "CAM_GPIO1", "PWR_LOW_N"; + + raspberrypi,firmware-gpio-offset = <128>; + }; + }; }; &uart1 { status = "okay"; }; + +&hdmi { + hpd-gpios = <&fxl6408 4 GPIO_ACTIVE_HIGH>; +}; -- 2.9.3
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