[RFC/PATCH 2/2] arm64: dts: qcom: sc7180-trogdor: Remove cros-ec keyboard from detachables

[Stephen Boyd <swboyd@chromium.org>]

Trogdor devices that have a detachable keyboard still have a
non-detachable keyboard input device present because we include the
cros-ec-keyboard.dtsi snippet in the top-level sc7180-trogdor.dtsi file
that every variant board includes. We do this because the
keyboard-controller node also provides some buttons like the power
button and volume buttons. Unfortunately, this means we register a
keyboard input device that doesn't do anything on boards with a
detachable keyboard. Let's delete the rows/columns properties of the
device node to indicate that there isn't a matrix keyboard on these
boards.

Cc: Benson Leung <bleung@chromium.org>
Cc: Guenter Roeck <groeck@chromium.org>
Cc: Douglas Anderson <dianders@chromium.org>
Cc: Hsin-Yi Wang <hsinyi@chromium.org>
Signed-off-by: Stephen Boyd <swboyd@chromium.org>
---

This is mostly to show an example. The patch will be picked up by qcom
maintainer if the first patch is accepted.

 arch/arm64/boot/dts/qcom/sc7180-trogdor-coachz.dtsi   | 5 +++++
 arch/arm64/boot/dts/qcom/sc7180-trogdor-homestar.dtsi | 5 +++++
 2 files changed, 10 insertions(+)

diff --git a/arch/arm64/boot/dts/qcom/sc7180-trogdor-coachz.dtsi b/arch/arm64/boot/dts/qcom/sc7180-trogdor-coachz.dtsi
index c81805ef2250..4173623cc241 100644
--- a/arch/arm64/boot/dts/qcom/sc7180-trogdor-coachz.dtsi
+++ b/arch/arm64/boot/dts/qcom/sc7180-trogdor-coachz.dtsi
@@ -119,6 +119,11 @@ &i2c9 {
 	status = "disabled";
 };
 
+&keyboard_controller {
+	/delete-property/keypad,num-rows;
+	/delete-property/keypad,num-columns;
+};
+
 &panel {
 	compatible = "boe,nv110wtm-n61";
 };
diff --git a/arch/arm64/boot/dts/qcom/sc7180-trogdor-homestar.dtsi b/arch/arm64/boot/dts/qcom/sc7180-trogdor-homestar.dtsi
index bff2b556cc75..7205062e88b4 100644
--- a/arch/arm64/boot/dts/qcom/sc7180-trogdor-homestar.dtsi
+++ b/arch/arm64/boot/dts/qcom/sc7180-trogdor-homestar.dtsi
@@ -121,6 +121,11 @@ &camcc {
 	status = "okay";
 };
 
+&keyboard_controller {
+	/delete-property/keypad,num-rows;
+	/delete-property/keypad,num-columns;
+};
+
 &panel {
 	compatible = "samsung,atna33xc20";
 	enable-gpios = <&tlmm 12 GPIO_ACTIVE_HIGH>;
-- 
https://chromeos.dev