linux-kernel - [PATCH v2 02/10] arm64: dts: qcom: msm8992: Add BLSP

lists.openwall.net		lists / announce owl-users owl-dev john-users john-dev passwdqc-users yescrypt popa3d-users / oss-security kernel-hardening musl sabotage tlsify passwords / crypt-dev xvendor / Bugtraq Full-Disclosure linux-kernel linux-netdev linux-ext4 linux-hardening linux-cve-announce PHC
Open Source and information security mailing list archives

Hash Suite: Windows password security audit tool. GUI, reports in PDF.

[<prev] [next>] [<thread-prev] [thread-next>] [day] [month] [year] [list]

Message-Id: <20200729120057.35079-3-konradybcio@gmail.com>
Date:   Wed, 29 Jul 2020 14:00:48 +0200
From:   Konrad Dybcio <konradybcio@...il.com>
To:     konradybcio@...il.com
Cc:     lauren.kelly@....com, Andy Gross <agross@...nel.org>,
        Bjorn Andersson <bjorn.andersson@...aro.org>,
        Rob Herring <robh+dt@...nel.org>,
        Michael Turquette <mturquette@...libre.com>,
        Stephen Boyd <sboyd@...nel.org>, linux-arm-msm@...r.kernel.org,
        devicetree@...r.kernel.org, linux-kernel@...r.kernel.org,
        linux-clk@...r.kernel.org
Subject: [PATCH v2 02/10] arm64: dts: qcom: msm8992: Add BLSP_I2C1 support

This will be required to support touchscreen on Lumia
devices.

Signed-off-by: Konrad Dybcio <konradybcio@...il.com>
---
 arch/arm64/boot/dts/qcom/msm8992.dtsi | 35 +++++++++++++++++++++++++++
 1 file changed, 35 insertions(+)

diff --git a/arch/arm64/boot/dts/qcom/msm8992.dtsi b/arch/arm64/boot/dts/qcom/msm8992.dtsi
index 9b42ac42b171..c7dc81311f6a 100644
--- a/arch/arm64/boot/dts/qcom/msm8992.dtsi
+++ b/arch/arm64/boot/dts/qcom/msm8992.dtsi
@@ -304,6 +304,27 @@ blsp1_uart2: serial@...1e000 {
 			status = "disabled";
 		};
 
+		/*
+		 * This I2C seems to only be present on WP platforms
+		 * and is likely disabled in firmware
+		 * (hangs at least one device) on android platforms.
+		 */
+		blsp_i2c1: i2c@...23000 {
+			compatible = "qcom,i2c-qup-v2.2.1";
+			reg = <0xf9923000 0x500>;
+			interrupts = <GIC_SPI 95 IRQ_TYPE_LEVEL_HIGH>;
+			clocks = <&gcc GCC_BLSP1_AHB_CLK>,
+						<&gcc GCC_BLSP1_QUP1_I2C_APPS_CLK>;
+			clock-names = "iface", "core";
+			clock-frequency = <400000>;
+			pinctrl-names = "default", "sleep";
+			pinctrl-0 = <&i2c1_default>;
+			pinctrl-1 = <&i2c1_sleep>;
+			#address-cells = <1>;
+			#size-cells = <0>;
+			status = "disabled";
+		};
+
 		blsp_i2c2: i2c@...24000 {
 			compatible = "qcom,i2c-qup-v2.2.1";
 			reg = <0xf9924000 0x500>;
@@ -524,6 +545,20 @@ sdc1_rclk_off: rclk-off {
 				bias-pull-down;
 			};
 
+			i2c1_default: i2c1-default {
+				function = "blsp_i2c1";
+				pins = "gpio2", "gpio3";
+				drive-strength = <2>;
+				bias-disable;
+			};
+
+			i2c1_sleep: i2c1-sleep {
+				function = "gpio";
+				pins = "gpio2", "gpio3";
+				drive-strength = <2>;
+				bias-disable;
+			};
+
 			i2c2_default: i2c2-default {
 				function = "blsp_i2c2";
 				pins = "gpio6", "gpio7";
-- 
2.27.0