linux-kernel - [v1 3/6] arm64: dts: sdm845: Add i2c-qcom-cci node

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Message-Id: <20200311123501.18202-4-robert.foss@linaro.org>
Date:   Wed, 11 Mar 2020 13:34:58 +0100
From:   Robert Foss <robert.foss@...aro.org>
To:     agross@...nel.org, bjorn.andersson@...aro.org, robh+dt@...nel.org,
        mark.rutland@....com, catalin.marinas@....com, will@...nel.org,
        shawnguo@...nel.org, olof@...om.net, Anson.Huang@....com,
        maxime@...no.tech, leonard.crestez@....com, dinguyen@...nel.org,
        marcin.juszkiewicz@...aro.org, linux-arm-msm@...r.kernel.org,
        devicetree@...r.kernel.org, linux-kernel@...r.kernel.org,
        linux-arm-kernel@...ts.infradead.org,
        Loic Poulain <loic.poulain@...aro.org>
Cc:     Robert Foss <robert.foss@...aro.org>
Subject: [v1 3/6] arm64: dts: sdm845: Add i2c-qcom-cci node

The sdm845 SOC ships with a CCI controller, which
has two CCI/I2C buses.

Signed-off-by: Robert Foss <robert.foss@...aro.org>
---
 arch/arm64/boot/dts/qcom/sdm845-db845c.dts |   4 +
 arch/arm64/boot/dts/qcom/sdm845.dtsi       | 110 +++++++++++++++++++++
 2 files changed, 114 insertions(+)

diff --git a/arch/arm64/boot/dts/qcom/sdm845-db845c.dts b/arch/arm64/boot/dts/qcom/sdm845-db845c.dts
index eb77aaa6a819..a6b6837c3d68 100644
--- a/arch/arm64/boot/dts/qcom/sdm845-db845c.dts
+++ b/arch/arm64/boot/dts/qcom/sdm845-db845c.dts
@@ -583,3 +583,7 @@
 		bias-pull-up;
 	};
 };
+
+&cci {
+	status = "ok";
+};
diff --git a/arch/arm64/boot/dts/qcom/sdm845.dtsi b/arch/arm64/boot/dts/qcom/sdm845.dtsi
index d42302b8889b..b7f5c0b0f6af 100644
--- a/arch/arm64/boot/dts/qcom/sdm845.dtsi
+++ b/arch/arm64/boot/dts/qcom/sdm845.dtsi
@@ -5,6 +5,7 @@
  * Copyright (c) 2018, The Linux Foundation. All rights reserved.
  */
 
+#include <dt-bindings/clock/qcom,camcc-sdm845.h>
 #include <dt-bindings/clock/qcom,dispcc-sdm845.h>
 #include <dt-bindings/clock/qcom,gcc-sdm845.h>
 #include <dt-bindings/clock/qcom,gpucc-sdm845.h>
@@ -717,6 +718,14 @@
 			#power-domain-cells = <1>;
 		};
 
+		clock_camcc: clock-controller@...0000 {
+			compatible = "qcom,sdm845-camcc";
+			reg = <0 0xad00000 0 0x10000>;
+			#clock-cells = <1>;
+			#reset-cells = <1>;
+			#power-domain-cells = <1>;
+		};
+
 		qfprom@...000 {
 			compatible = "qcom,qfprom";
 			reg = <0 0x00784000 0 0x8ff>;
@@ -1451,6 +1460,60 @@
 			gpio-ranges = <&tlmm 0 0 150>;
 			wakeup-parent = <&pdc_intc>;
 
+			cci0_default: cci0_default {
+				/* SDA, SCL */
+				pinmux {
+					function = "cci_i2c";
+					pins = "gpio17", "gpio18";
+				};
+				pinconf {
+					pins = "gpio17", "gpio18";
+					bias-pull-up;
+					drive-strength = <2>; /* 2 mA */
+				};
+			};
+
+			cci0_sleep: cci0_sleep {
+				/* SDA, SCL */
+				mux {
+					pins = "gpio17", "gpio18";
+					function = "cci_i2c";
+				};
+
+				config {
+					pins = "gpio17", "gpio18";
+					drive-strength = <2>; /* 2 mA */
+					bias-pull-down;
+				};
+			};
+
+			cci1_default: cci1_default {
+				/* SDA, SCL */
+				pinmux {
+					function = "cci_i2c";
+					pins = "gpio19", "gpio20";
+				};
+				pinconf {
+					pins = "gpio19", "gpio20";
+					bias-pull-up;
+					drive-strength = <2>; /* 2 mA */
+				};
+			};
+
+			cci1_sleep: cci1_sleep {
+				/* SDA, SCL */
+				mux {
+					pins = "gpio19", "gpio20";
+					function = "cci_i2c";
+				};
+
+				config {
+					pins = "gpio19", "gpio20";
+					drive-strength = <2>; /* 2 mA */
+					bias-pull-down;
+				};
+			};
+
 			qspi_clk: qspi-clk {
 				pinmux {
 					pins = "gpio95";
@@ -2608,6 +2671,53 @@
 			#reset-cells = <1>;
 		};
 
+		cci: cci@...a000 {
+			compatible = "qcom,sdm845-cci";
+			#address-cells = <1>;
+			#size-cells = <0>;
+
+			reg = <0 0xac4a000 0 0x4000>;
+			interrupts = <GIC_SPI 460 IRQ_TYPE_EDGE_RISING>;
+			power-domains = <&clock_camcc TITAN_TOP_GDSC>;
+
+			clocks = <&clock_camcc CAM_CC_CAMNOC_AXI_CLK>,
+				<&clock_camcc CAM_CC_SOC_AHB_CLK>,
+				<&clock_camcc CAM_CC_SLOW_AHB_CLK_SRC>,
+				<&clock_camcc CAM_CC_CPAS_AHB_CLK>,
+				<&clock_camcc CAM_CC_CCI_CLK>,
+				<&clock_camcc CAM_CC_CCI_CLK_SRC>;
+			clock-names = "camnoc_axi_clk",
+				"soc_ahb_clk",
+				"slow_ahb_src_clk",
+				"cpas_ahb_clk",
+				"cci",
+				"cci_clk_src";
+
+			assigned-clocks = <&clock_camcc CAM_CC_CAMNOC_AXI_CLK>,
+				<&clock_camcc CAM_CC_CCI_CLK>;
+			assigned-clock-rates = <80000000>, <37500000>;
+
+			pinctrl-names = "default", "sleep";
+			pinctrl-0 = <&cci0_default &cci1_default>;
+			pinctrl-1 = <&cci0_sleep &cci1_sleep>;
+
+			status = "disabled";
+
+			i2c-bus@0 {
+				reg = <0>;
+				clock-frequency = <1000000>;
+				#address-cells = <1>;
+				#size-cells = <0>;
+			};
+
+			i2c-bus@1 {
+				reg = <1>;
+				clock-frequency = <1000000>;
+				#address-cells = <1>;
+				#size-cells = <0>;
+			};
+		};
+
 		mdss: mdss@...0000 {
 			compatible = "qcom,sdm845-mdss";
 			reg = <0 0x0ae00000 0 0x1000>;
-- 
2.20.1