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From: Stephen Boyd <swboyd@chromium.org>
To: Dmitry Torokhov <dmitry.torokhov@gmail.com>
Cc: linux-kernel@vger.kernel.org, patches@lists.linux.dev,
	linux-input@vger.kernel.org, chrome-platform@lists.linux.dev,
	Benson Leung <bleung@chromium.org>,
	Guenter Roeck <groeck@chromium.org>,
	Douglas Anderson <dianders@chromium.org>,
	Hsin-Yi Wang <hsinyi@chromium.org>
Subject: [RFC/PATCH 2/2] arm64: dts: qcom: sc7180-trogdor: Remove cros-ec keyboard from detachables
Date: Tue, 12 Apr 2022 20:33:34 -0700	[thread overview]
Message-ID: <20220413033334.1514008-3-swboyd@chromium.org> (raw)
In-Reply-To: <20220413033334.1514008-1-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


      parent reply	other threads:[~2022-04-13  3:33 UTC|newest]

Thread overview: 6+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2022-04-13  3:33 [PATCH 0/2] Input: cros-ec-keyb: Don't register keyboard if doesn't exist Stephen Boyd
2022-04-13  3:33 ` [PATCH 1/2] Input: cros-ec-keyb: Only register keyboard if rows/columns exist Stephen Boyd
2022-04-13 20:44   ` Doug Anderson
2022-04-25  3:47   ` Dmitry Torokhov
2022-04-25 20:12     ` Stephen Boyd
2022-04-13  3:33 ` Stephen Boyd [this message]

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