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Subject[v1 5/6] arm64: dts: sdm845-db845c: Add ov8856 & ov7251 camera nodes
Date
Enable the ov8856 main camera and the ov7251 b/w tracking camera
used on the Qualcomm RB3 kit.

Currently the camera nodes have not yet been attached to an to a
CSI2 endpoint, since no driver currently supports the ISP that the the
SDM845/db845c ships with.

Signed-off-by: Robert Foss <robert.foss@linaro.org>
---
arch/arm64/boot/dts/qcom/sdm845-db845c.dts | 239 +++++++++++++++++++++
1 file changed, 239 insertions(+)

diff --git a/arch/arm64/boot/dts/qcom/sdm845-db845c.dts b/arch/arm64/boot/dts/qcom/sdm845-db845c.dts
index e8c056d02ace..660550197ce9 100644
--- a/arch/arm64/boot/dts/qcom/sdm845-db845c.dts
+++ b/arch/arm64/boot/dts/qcom/sdm845-db845c.dts
@@ -110,6 +110,53 @@
// enable-active-high;
};

+ cam0_dvdd_1v2: reg_cam0_dvdd_1v2 {
+ compatible = "regulator-fixed";
+ regulator-name = "CAM0_DVDD_1V2";
+ regulator-min-microvolt = <1200000>;
+ regulator-max-microvolt = <1200000>;
+ enable-active-high;
+ gpio = <&pm8998_gpio 12 GPIO_ACTIVE_HIGH>;
+ pinctrl-names = "default";
+ pinctrl-0 = <&cam0_dvdd_1v2_en_default>;
+ vin-supply = <&vbat>;
+ };
+
+ cam0_avdd_2v8: reg_cam0_avdd_2v8 {
+ compatible = "regulator-fixed";
+ regulator-name = "CAM0_AVDD_2V8";
+ regulator-min-microvolt = <2800000>;
+ regulator-max-microvolt = <2800000>;
+ enable-active-high;
+ gpio = <&pm8998_gpio 10 GPIO_ACTIVE_HIGH>;
+ pinctrl-names = "default";
+ pinctrl-0 = <&cam0_avdd_2v8_en_default>;
+ vin-supply = <&vbat>;
+ };
+
+ /* This regulator is enabled when the VREG_LVS1A_1P8 trace is enabled */
+ cam3_avdd_2v8: reg_cam3_avdd_2v8 {
+ compatible = "regulator-fixed";
+ regulator-name = "CAM3_AVDD_2V8";
+ regulator-min-microvolt = <2800000>;
+ regulator-max-microvolt = <2800000>;
+ regulator-always-on;
+ vin-supply = <&vbat>;
+ };
+
+ /* This regulator does not really exits, but a 'vddd-supply' is
+ * required for the ov7251 driver, but no 'vddd' regulator is used
+ * in the schematic
+ */
+ cam3_vddd_1v2: reg_cam3_vddd_1v2 {
+ compatible = "regulator-fixed";
+ regulator-name = "CAM3_VDDD_1V2_DUMMY";
+ regulator-min-microvolt = <1200000>;
+ regulator-max-microvolt = <1200000>;
+ regulator-always-on;
+ vin-supply = <&vbat>;
+ };
+
pcie0_3p3v_dual: vldo-3v3-regulator {
compatible = "regulator-fixed";
regulator-name = "VLDO_3V3";
@@ -406,6 +453,81 @@
};

&tlmm {
+ pcie0_default_state: pcie0-default {
+ clkreq {
+ pins = "gpio36";
+ function = "pci_e0";
+ bias-pull-up;
+ };
+
+ reset-n {
+ pins = "gpio35";
+ function = "gpio";
+
+ drive-strength = <2>;
+ output-low;
+ bias-pull-down;
+ };
+
+ wake-n {
+ pins = "gpio37";
+ function = "gpio";
+
+ drive-strength = <2>;
+ bias-pull-up;
+ };
+ };
+
+ cam0_default: cam0_default {
+ mux_rst {
+ function = "gpio";
+ pins = "gpio9";
+ };
+ config_rst {
+ pins = "gpio9";
+ drive-strength = <16>;
+ bias-disable;
+ };
+
+ mux_mclk0 {
+ function = "cam_mclk";
+ pins = "gpio13";
+ };
+ config_mclk0 {
+ pins = "gpio13";
+ drive-strength = <16>;
+ bias-disable;
+ };
+ };
+
+ cam3_default: cam3_default {
+ mux_rst {
+ function = "gpio";
+ pins = "gpio21";
+ };
+ config_rst {
+ pins = "gpio21";
+ drive-strength = <16>;
+ bias-disable;
+ };
+
+ mux_mclk3 {
+ function = "cam_mclk";
+ pins = "gpio16";
+ };
+ config_mclk3 {
+ pins = "gpio16";
+ drive-strength = <16>;
+ bias-disable;
+ };
+ };
+
+ lt9611_irq_pin: lt9611-irq {
+ pins = "gpio84";
+ function = "gpio";
+ bias-disable;
+ };
+
pcie0_pwren_state: pcie0-pwren {
pins = "gpio90";
function = "gpio";
@@ -612,8 +734,125 @@
"PM845_GPIO24",
"OPTION2",
"PM845_SLB";
+
+ cam0_dvdd_1v2_en_default: cam0_dvdd_1v2_en_pinctrl {
+ pins = "gpio12";
+ function = "normal";
+
+ bias-pull-up;
+ drive-push-pull;
+ qcom,drive-strength = <PMIC_GPIO_STRENGTH_HIGH>;
+ };
+
+ cam0_avdd_2v8_en_default: cam0_avdd_2v8_en_pinctrl {
+ pins = "gpio10";
+ function = "normal";
+
+ bias-pull-up;
+ drive-push-pull;
+ qcom,drive-strength = <PMIC_GPIO_STRENGTH_HIGH>;
+ };
};

&cci {
status = "ok";
+
+ i2c-bus@0 {
+ cam0@10 {
+ compatible = "ovti,ov8856";
+
+ /* The Qualcomm RB3 camera mezzanine schematic lists
+ * 0x20 as I2C address of this device, but the Linux
+ * kernel documentation lists 0x10 I2C address.
+ */
+ reg = <0x10>;
+
+ // CAM0_RST_N
+ reset-gpios = <&tlmm 9 GPIO_ACTIVE_HIGH>;
+ pinctrl-names = "default";
+ pinctrl-0 = <&cam0_default>;
+ gpios = <&tlmm 13 0>,
+ <&tlmm 9 0>;
+
+ clocks = <&clock_camcc CAM_CC_MCLK0_CLK>;
+ clock-names = "xvclk";
+ clock-frequency = <19200000>;
+
+
+ /* The &vreg_s4a_1p8 trace is powered on as a
+ * part of the TITAN_TOP_GDSC power domain.
+ * So it is represented by a fixed regulator.
+ *
+ * The 2.8V vdda-supply and 1.2V vddd-supply regulators
+ * both have to be enabled through the power management
+ * gpios.
+ */
+ power-domains = <&clock_camcc TITAN_TOP_GDSC>;
+
+ dovdd-supply = <&vreg_lvs1a_1p8>;
+ avdd-supply = <&cam0_avdd_2v8>;
+ dvdd-supply = <&cam0_dvdd_1v2>;
+
+ /* No camera mezzanine by default */
+ status = "ok";
+
+ port {
+ ov8856_ep: endpoint {
+ clock-lanes = <1>;
+ link-frequencies = /bits/ 64
+ <360000000 180000000>;
+ data-lanes = <1 2 3 4>;
+// remote-endpoint = <&csiphy0_ep>;
+ };
+ };
+ };
+ };
+
+ i2c-bus@1 {
+ cam3@60 {
+ compatible = "ovti,ov7251";
+
+ // I2C address as per ov7251.txt linux documentation
+ reg = <0x60>;
+
+ // CAM3_RST_N
+ enable-gpios = <&tlmm 21 GPIO_ACTIVE_HIGH>;
+ pinctrl-names = "default";
+ pinctrl-0 = <&cam3_default>;
+ gpios = <&tlmm 16 0>,
+ <&tlmm 21 0>;
+
+ clocks = <&clock_camcc CAM_CC_MCLK3_CLK>;
+ clock-names = "xclk";
+ clock-frequency = <24000000>;
+
+ /* The &vreg_s4a_1p8 trace is powered on as a
+ * part of the TITAN_TOP_GDSC power domain.
+ * So it is represented by a fixed regulator.
+ *
+ * The 2.8V vdda-supply regulator is enabled when the
+ * vreg_s4a_1p8 trace is pulled high.
+ * It too is represented by a fixed regulator.
+ *
+ * No 1.2V vddd-supply regulator is used, a fixed
+ * regulator represents it.
+ */
+ power-domains = <&clock_camcc TITAN_TOP_GDSC>;
+
+ vdddo-supply = <&vreg_lvs1a_1p8>;
+ vdda-supply = <&cam3_avdd_2v8>;
+ vddd-supply = <&cam3_vddd_1v2>;
+
+ /* No camera mezzanine by default */
+ status = "ok";
+
+ port {
+ ov7251_ep: endpoint {
+ clock-lanes = <1>;
+ data-lanes = <0 1>;
+// remote-endpoint = <&csiphy3_ep>;
+ };
+ };
+ };
+ };
};
--
2.20.1
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