Message-Id: <20220518172525.3319993-1-swboyd@chromium.org>
Date:   Wed, 18 May 2022 10:25:25 -0700
From:   Stephen Boyd <swboyd@...omium.org>
To:     Andy Gross <agross@...nel.org>,
        Bjorn Andersson <bjorn.andersson@...aro.org>
Cc:     linux-kernel@...r.kernel.org, patches@...ts.linux.dev,
        linux-arm-msm@...r.kernel.org,
        Dmitry Torokhov <dmitry.torokhov@...il.com>,
        Benson Leung <bleung@...omium.org>,
        Guenter Roeck <groeck@...omium.org>,
        Douglas Anderson <dianders@...omium.org>,
        Hsin-Yi Wang <hsinyi@...omium.org>,
        "Joseph S. Barrera III" <joebar@...omium.org>
Subject: [PATCH] arm64: dts: qcom: sc7180-trogdor: Split out keyboard node and describe detachables

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.

Change the node's compatible on detachables to the newly introduced
"google,cros-ec-keyb-switches" compatible to indicate that there are
only switches and no keyboard to register. Similarly, move the keyboard
include that defines the keyboard-controller node out of
sc7180-trogdor.dtsi to boards that actually have a keyboard so that the
matrix properties are not defined on boards with the switches
compatible. Future boards can either use the include approach or the
node definition approach to describe a keyboard with possible switches
or just some switches.

Cc: Benson Leung <bleung@...omium.org>
Cc: Guenter Roeck <groeck@...omium.org>
Cc: Douglas Anderson <dianders@...omium.org>
Cc: Hsin-Yi Wang <hsinyi@...omium.org>
Cc: "Joseph S. Barrera III" <joebar@...omium.org>
Signed-off-by: Stephen Boyd <swboyd@...omium.org>
---

This is based on an immutable branch from Dmitry (on Cc)

	git://git.kernel.org/pub/scm/linux/kernel/git/dtor/input.git ib/5.17-cros-ec-keyb

where this patch should be applied on top of so that a bisect doesn't
break. The driver side change only supports one compatible or the other,
so we can't apply this patch unless the driver side change is present.

 arch/arm64/boot/dts/qcom/sc7180-trogdor-coachz.dtsi   | 4 ++++
 arch/arm64/boot/dts/qcom/sc7180-trogdor-homestar.dtsi | 6 ++++++
 arch/arm64/boot/dts/qcom/sc7180-trogdor-lazor.dtsi    | 2 ++
 arch/arm64/boot/dts/qcom/sc7180-trogdor-pompom.dtsi   | 2 ++
 arch/arm64/boot/dts/qcom/sc7180-trogdor-r1.dts        | 2 ++
 arch/arm64/boot/dts/qcom/sc7180-trogdor.dtsi          | 1 -
 6 files changed, 16 insertions(+), 1 deletion(-)

diff --git a/arch/arm64/boot/dts/qcom/sc7180-trogdor-coachz.dtsi b/arch/arm64/boot/dts/qcom/sc7180-trogdor-coachz.dtsi
index 14ed09f30a73..a131dba4bf97 100644
--- a/arch/arm64/boot/dts/qcom/sc7180-trogdor-coachz.dtsi
+++ b/arch/arm64/boot/dts/qcom/sc7180-trogdor-coachz.dtsi
@@ -86,6 +86,10 @@ &camcc {
 };
 
 &cros_ec {
+	keyboard-controller {
+		compatible = "google,cros-ec-keyb-switches";
+	};
+
 	cros_ec_proximity: proximity {
 		compatible = "google,cros-ec-mkbp-proximity";
 		label = "proximity-wifi";
diff --git a/arch/arm64/boot/dts/qcom/sc7180-trogdor-homestar.dtsi b/arch/arm64/boot/dts/qcom/sc7180-trogdor-homestar.dtsi
index f32369af1351..5d7ca89f7862 100644
--- a/arch/arm64/boot/dts/qcom/sc7180-trogdor-homestar.dtsi
+++ b/arch/arm64/boot/dts/qcom/sc7180-trogdor-homestar.dtsi
@@ -121,6 +121,12 @@ &camcc {
 	status = "okay";
 };
 
+&cros_ec {
+	keyboard-controller {
+		compatible = "google,cros-ec-keyb-switches";
+	};
+};
+
 &panel {
 	compatible = "samsung,atna33xc20";
 	enable-gpios = <&tlmm 12 GPIO_ACTIVE_HIGH>;
diff --git a/arch/arm64/boot/dts/qcom/sc7180-trogdor-lazor.dtsi b/arch/arm64/boot/dts/qcom/sc7180-trogdor-lazor.dtsi
index 69666f92176a..4601f5afe255 100644
--- a/arch/arm64/boot/dts/qcom/sc7180-trogdor-lazor.dtsi
+++ b/arch/arm64/boot/dts/qcom/sc7180-trogdor-lazor.dtsi
@@ -9,6 +9,8 @@
 ap_h1_spi: &spi0 {};
 
 #include "sc7180-trogdor.dtsi"
+/* Must come after sc7180-trogdor.dtsi to modify cros_ec */
+#include <arm/cros-ec-keyboard.dtsi>
 
 &ap_sar_sensor {
 	semtech,cs0-ground;
diff --git a/arch/arm64/boot/dts/qcom/sc7180-trogdor-pompom.dtsi b/arch/arm64/boot/dts/qcom/sc7180-trogdor-pompom.dtsi
index e90f99ef5323..64535bd03db9 100644
--- a/arch/arm64/boot/dts/qcom/sc7180-trogdor-pompom.dtsi
+++ b/arch/arm64/boot/dts/qcom/sc7180-trogdor-pompom.dtsi
@@ -11,6 +11,8 @@
 ap_h1_spi: &spi0 {};
 
 #include "sc7180-trogdor.dtsi"
+/* Must come after sc7180-trogdor.dtsi to modify cros_ec */
+#include <arm/cros-ec-keyboard.dtsi>
 #include "sc7180-trogdor-ti-sn65dsi86.dtsi"
 
 / {
diff --git a/arch/arm64/boot/dts/qcom/sc7180-trogdor-r1.dts b/arch/arm64/boot/dts/qcom/sc7180-trogdor-r1.dts
index 457c25499863..9a424a96c003 100644
--- a/arch/arm64/boot/dts/qcom/sc7180-trogdor-r1.dts
+++ b/arch/arm64/boot/dts/qcom/sc7180-trogdor-r1.dts
@@ -13,6 +13,8 @@
 ap_h1_spi: &spi0 {};
 
 #include "sc7180-trogdor.dtsi"
+/* Must come after sc7180-trogdor.dtsi to modify cros_ec */
+#include <arm/cros-ec-keyboard.dtsi>
 #include "sc7180-trogdor-ti-sn65dsi86.dtsi"
 
 / {
diff --git a/arch/arm64/boot/dts/qcom/sc7180-trogdor.dtsi b/arch/arm64/boot/dts/qcom/sc7180-trogdor.dtsi
index bd5909ffb3dc..a09b2e452712 100644
--- a/arch/arm64/boot/dts/qcom/sc7180-trogdor.dtsi
+++ b/arch/arm64/boot/dts/qcom/sc7180-trogdor.dtsi
@@ -810,7 +810,6 @@ cros_ec_fp: ec@0 {
 	};
 };
 
-#include <arm/cros-ec-keyboard.dtsi>
 #include <arm/cros-ec-sbs.dtsi>
 
 &uart3 {

base-commit: ca1eadbfcd36bec73f2a2111c28e8c7e9e8ae6c0
-- 
https://chromeos.dev

Powered by blists - more mailing lists