linux-kernel - [PATCH 3/5] arm64: dts: qcom: sdm845-xiaomi-beryllium-common: add touchscreen related nodes

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Date:   Sun, 12 Mar 2023 04:32:47 -0500
From:   Joel Selvaraj <joelselvaraj.oss@...il.com>
To:     Caleb Connolly <caleb@...nolly.tech>,
        Dmitry Torokhov <dmitry.torokhov@...il.com>,
        Rob Herring <robh+dt@...nel.org>,
        Krzysztof Kozlowski <krzysztof.kozlowski+dt@...aro.org>,
        Andy Gross <agross@...nel.org>,
        Bjorn Andersson <andersson@...nel.org>,
        Konrad Dybcio <konrad.dybcio@...aro.org>,
        Henrik Rydberg <rydberg@...math.org>,
        Arnd Bergmann <arnd@...db.de>,
        Robert Jarzmik <robert.jarzmik@...e.fr>,
        Jeff LaBundy <jeff@...undy.com>,
        Neil Armstrong <neil.armstrong@...aro.org>,
        Markuss Broks <markuss.broks@...il.com>,
        Jean Delvare <jdelvare@...e.de>,
        Max Krummenacher <max.krummenacher@...adex.com>,
        Job Noorman <job@...rman.info>,
        Alistair Francis <alistair@...stair23.me>,
        Chris Morgan <macromorgan@...mail.com>
Cc:     linux-input@...r.kernel.org, devicetree@...r.kernel.org,
        linux-kernel@...r.kernel.org, linux-arm-msm@...r.kernel.org,
        ~postmarketos/upstreaming@...ts.sr.ht, phone-devel@...r.kernel.org,
        Joel Selvaraj <joelselvaraj.oss@...il.com>
Subject: [PATCH 3/5] arm64: dts: qcom: sdm845-xiaomi-beryllium-common: add touchscreen related nodes

Enable qupv3_id_1 and gpi_dma1 as they are required for configuring
touchscreen. Also add pinctrl configurations needed for touchscreen.
These are common for both the tianma and ebbg touchscreen variant.
In the subsequent patch, we will initially enable support for the focaltech
touchscreen used in the EBBG variant. This is done in preparation for that.

Signed-off-by: Joel Selvaraj <joelselvaraj.oss@...il.com>
---
 .../qcom/sdm845-xiaomi-beryllium-common.dtsi  | 39 +++++++++++++++++++
 1 file changed, 39 insertions(+)

diff --git a/arch/arm64/boot/dts/qcom/sdm845-xiaomi-beryllium-common.dtsi b/arch/arm64/boot/dts/qcom/sdm845-xiaomi-beryllium-common.dtsi
index e0fda4d754fe..ecfd85bde966 100644
--- a/arch/arm64/boot/dts/qcom/sdm845-xiaomi-beryllium-common.dtsi
+++ b/arch/arm64/boot/dts/qcom/sdm845-xiaomi-beryllium-common.dtsi
@@ -270,6 +270,10 @@ &gmu {
 	status = "okay";
 };
 
+&gpi_dma1 {
+	status = "okay";
+};
+
 &gpu {
 	status = "okay";
 
@@ -368,6 +372,10 @@ &qupv3_id_0 {
 	status = "okay";
 };
 
+&qupv3_id_1 {
+	status = "okay";
+};
+
 &sdhc_2 {
 	status = "okay";
 
@@ -473,6 +481,37 @@ sdc2_card_det_n: sd-card-det-n-state {
 		function = "gpio";
 		bias-pull-up;
 	};
+
+	ts_int_default: ts-int-default-state {
+		pins = "gpio31";
+		function = "gpio";
+		drive-strength = <16>;
+		bias-pull-down;
+		input-enable;
+	};
+
+	ts_reset_default: ts-reset-default-state {
+		pins = "gpio32";
+		function = "gpio";
+		drive-strength = <16>;
+		output-high;
+	};
+
+	ts_int_sleep: ts-int-sleep-state {
+		pins = "gpio31";
+		function = "gpio";
+		drive-strength = <2>;
+		bias-pull-down;
+		input-enable;
+	};
+
+	ts_reset_sleep: ts-reset-sleep-state {
+		pins = "gpio32";
+		function = "gpio";
+		drive-strength = <2>;
+		bias-disable;
+		output-low;
+	};
 };
 
 &uart6 {
-- 
2.39.2