[v3,3/6] arm64: dts: sdm845: Add i2c-qcom-cci node

Commit Message

Robert Foss March 24, 2020, 3:58 p.m. UTC

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

Signed-off-by: Robert Foss <[e-mail]>
Reviewed-by: Bjorn Andersson <[e-mail]>
---

Changes since v1:
 - Pad addresses to 8 bytes
 - Sort clock_camcc by address
 - Change cciX pinctrl node names
 - Remove pinmux/pinconf nodes from pinctrl nodes
 - Remove clk suffix from CCI node clock-names
 - Give CCI i2c-bus nodes labels

 arch/arm64/boot/dts/qcom/sdm845-db845c.dts |  4 +
 arch/arm64/boot/dts/qcom/sdm845.dtsi       | 92 ++++++++++++++++++++++
 2 files changed, 96 insertions(+)

Patch

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 @@  pinconf-rx {
 		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..91a60847026f 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>
@@ -1451,6 +1452,42 @@  tlmm: pinctrl@3400000 {
 			gpio-ranges = <&tlmm 0 0 150>;
 			wakeup-parent = <&pdc_intc>;
 
+			cci0_default: cci0-default {
+				/* SDA, SCL */
+				pins = "gpio17", "gpio18";
+				function = "cci_i2c";
+
+				bias-pull-up;
+				drive-strength = <2>; /* 2 mA */
+			};
+
+			cci0_sleep: cci0-sleep {
+				/* SDA, SCL */
+				pins = "gpio17", "gpio18";
+				function = "cci_i2c";
+
+				drive-strength = <2>; /* 2 mA */
+				bias-pull-down;
+			};
+
+			cci1_default: cci1-default {
+				/* SDA, SCL */
+				pins = "gpio19", "gpio20";
+				function = "cci_i2c";
+
+				bias-pull-up;
+				drive-strength = <2>; /* 2 mA */
+			};
+
+			cci1_sleep: cci1-sleep {
+				/* SDA, SCL */
+				pins = "gpio19", "gpio20";
+				function = "cci_i2c";
+
+				drive-strength = <2>; /* 2 mA */
+				bias-pull-down;
+			};
+
 			qspi_clk: qspi-clk {
 				pinmux {
 					pins = "gpio95";
@@ -2608,6 +2645,61 @@  videocc: clock-controller@ab00000 {
 			#reset-cells = <1>;
 		};
 
+		cci: cci@ac4a000 {
+			compatible = "qcom,sdm845-cci";
+			#address-cells = <1>;
+			#size-cells = <0>;
+
+			reg = <0 0x0ac4a000 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",
+				"soc_ahb",
+				"slow_ahb_src",
+				"cpas_ahb",
+				"cci",
+				"cci_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";
+
+			cci_i2c0: i2c-bus@0 {
+				reg = <0>;
+				clock-frequency = <1000000>;
+				#address-cells = <1>;
+				#size-cells = <0>;
+			};
+
+			cci_i2c1: i2c-bus@1 {
+				reg = <1>;
+				clock-frequency = <1000000>;
+				#address-cells = <1>;
+				#size-cells = <0>;
+			};
+		};
+
+		clock_camcc: clock-controller@ad00000 {
+			compatible = "qcom,sdm845-camcc";
+			reg = <0 0x0ad00000 0 0x10000>;
+			#clock-cells = <1>;
+			#reset-cells = <1>;
+			#power-domain-cells = <1>;
+		};
+
 		mdss: mdss@ae00000 {
 			compatible = "qcom,sdm845-mdss";
 			reg = <0 0x0ae00000 0 0x1000>;