[PATCH v4 3/4] arm64: dts: qcom: sm8750: describe two of the three CCI I2C controllers

From: Qianhui Xu

Date: Sat Oct 31 2026 - 02:56:26 EST


The SM8750 has three CCI I2C controllers; this dtsi describes the two
that the Qualcomm camera subsystem binds to on this SoC. Each controller
exposes two I2C buses; both buses are described and left available, as
on sm8550 and sm8650, and the second bus pinctrl states are carried for
both controllers (cci0 bus 1 on gpio115/116, cci1 bus 1 on gpio119/120).

The nodes are placed in unit-address order after videocc@aaf0000.

Signed-off-by: Qianhui Xu <xiaqinghuan@xxxxxxxxxxxxxxxx>
---
arch/arm64/boot/dts/qcom/sm8750.dtsi | 158 +++++++++++++++++++++++++++
1 file changed, 158 insertions(+)

diff --git a/arch/arm64/boot/dts/qcom/sm8750.dtsi b/arch/arm64/boot/dts/qcom/sm8750.dtsi
index dd738d13df..9649af7f6f 100644
--- a/arch/arm64/boot/dts/qcom/sm8750.dtsi
+++ b/arch/arm64/boot/dts/qcom/sm8750.dtsi
@@ -3060,6 +3060,72 @@ videocc: clock-controller@aaf0000 {
#power-domain-cells = <1>;
};

+ cci0: cci@ac7b000 {
+ compatible = "qcom,sm8750-cci", "qcom,msm8996-cci";
+ reg = <0x0 0x0ac7b000 0x0 0x1000>;
+ interrupts = <GIC_SPI 426 IRQ_TYPE_EDGE_RISING>;
+ power-domains = <&camcc CAM_CC_TITAN_TOP_GDSC>;
+ clocks = <&camcc CAM_CC_CAM_TOP_AHB_CLK>,
+ <&camcc CAM_CC_CCI_0_CLK>;
+ clock-names = "ahb", "cci";
+ assigned-clocks = <&camcc CAM_CC_CCI_0_CLK>;
+ assigned-clock-rates = <37500000>;
+ pinctrl-0 = <&cci0_0_default &cci0_1_default>;
+ pinctrl-1 = <&cci0_0_sleep &cci0_1_sleep>;
+ pinctrl-names = "default", "sleep";
+ status = "disabled";
+ #address-cells = <1>;
+ #size-cells = <0>;
+
+ cci0_i2c0: i2c-bus@0 {
+ reg = <0>;
+ clock-frequency = <400000>;
+ #address-cells = <1>;
+ #size-cells = <0>;
+ };
+
+ cci0_i2c1: i2c-bus@1 {
+ status = "disabled";
+ reg = <1>;
+ clock-frequency = <400000>;
+ #address-cells = <1>;
+ #size-cells = <0>;
+ };
+ };
+
+ cci1: cci@ac7c000 {
+ compatible = "qcom,sm8750-cci", "qcom,msm8996-cci";
+ reg = <0x0 0x0ac7c000 0x0 0x1000>;
+ interrupts = <GIC_SPI 427 IRQ_TYPE_EDGE_RISING>;
+ power-domains = <&camcc CAM_CC_TITAN_TOP_GDSC>;
+ clocks = <&camcc CAM_CC_CAM_TOP_AHB_CLK>,
+ <&camcc CAM_CC_CCI_1_CLK>;
+ clock-names = "ahb", "cci";
+ assigned-clocks = <&camcc CAM_CC_CCI_1_CLK>;
+ assigned-clock-rates = <37500000>;
+ pinctrl-0 = <&cci1_0_default &cci1_1_default>;
+ pinctrl-1 = <&cci1_0_sleep &cci1_1_sleep>;
+ pinctrl-names = "default", "sleep";
+ status = "disabled";
+ #address-cells = <1>;
+ #size-cells = <0>;
+
+ cci1_i2c0: i2c-bus@0 {
+ reg = <0>;
+ clock-frequency = <400000>;
+ #address-cells = <1>;
+ #size-cells = <0>;
+ };
+
+ cci1_i2c1: i2c-bus@1 {
+ status = "disabled";
+ reg = <1>;
+ clock-frequency = <400000>;
+ #address-cells = <1>;
+ #size-cells = <0>;
+ };
+ };
+
mdss: display-subsystem@ae00000 {
compatible = "qcom,sm8750-mdss";
reg = <0x0 0x0ae00000 0x0 0x1000>;
@@ -4090,6 +4156,98 @@ qup_uart15_default: qup-uart15-default-state {
bias-pull-up;
};

+ cci0_0_default: cci0-0-default-state {
+ sda-pins {
+ pins = "gpio113";
+ function = "cci_i2c_sda";
+ drive-strength = <2>;
+ bias-pull-up;
+ };
+
+ scl-pins {
+ pins = "gpio114";
+ function = "cci_i2c_scl";
+ drive-strength = <2>;
+ bias-pull-up;
+ };
+ };
+
+ cci0_0_sleep: cci0-0-sleep-state {
+ pins = "gpio113", "gpio114";
+ function = "gpio";
+ drive-strength = <2>;
+ bias-pull-down;
+ };
+
+ cci1_0_default: cci1-0-default-state {
+ sda-pins {
+ pins = "gpio117";
+ function = "cci_i2c_sda";
+ drive-strength = <2>;
+ bias-pull-up;
+ };
+
+ scl-pins {
+ pins = "gpio118";
+ function = "cci_i2c_scl";
+ drive-strength = <2>;
+ bias-pull-up;
+ };
+ };
+
+ cci1_0_sleep: cci1-0-sleep-state {
+ pins = "gpio117", "gpio118";
+ function = "gpio";
+ drive-strength = <2>;
+ bias-pull-down;
+ };
+
+ cci0_1_default: cci0-1-default-state {
+ sda-pins {
+ pins = "gpio115";
+ function = "cci_i2c_sda";
+ drive-strength = <2>;
+ bias-pull-up;
+ };
+
+ scl-pins {
+ pins = "gpio116";
+ function = "cci_i2c_scl";
+ drive-strength = <2>;
+ bias-pull-up;
+ };
+ };
+
+ cci0_1_sleep: cci0-1-sleep-state {
+ pins = "gpio115", "gpio116";
+ function = "gpio";
+ drive-strength = <2>;
+ bias-pull-down;
+ };
+
+ cci1_1_default: cci1-1-default-state {
+ sda-pins {
+ pins = "gpio119";
+ function = "cci_i2c_sda";
+ drive-strength = <2>;
+ bias-pull-up;
+ };
+
+ scl-pins {
+ pins = "gpio120";
+ function = "cci_i2c_scl";
+ drive-strength = <2>;
+ bias-pull-up;
+ };
+ };
+
+ cci1_1_sleep: cci1-1-sleep-state {
+ pins = "gpio119", "gpio120";
+ function = "gpio";
+ drive-strength = <2>;
+ bias-pull-down;
+ };
+
sdc2_sleep: sdc2-sleep-state {
clk-pins {
pins = "sdc2_clk";
--
2.53.0