github-mirror/linux
1
0
Fork 0
mirror of https://github.com/torvalds/linux.git synced 2026-06-05 04:56:13 +02:00
Code Issues Actions Packages Projects Releases Wiki Activity Graph

arm64: dts: rockchip: describe I2c Bus 1 and IMX258 world camera on PinePhone Pro

Browse Source 
Add the description of the rear/world camera (IMX258) on the PinePhone Pro
to the device dts file.
It receives commands on the I2C Bus 1 at address 0x1a and transmits data
over CSI-MIPI.

The I2C address for IMX258 can be found in the IMX258-0AQH5 Software
Reference Manual, page 24, section 2.3.1: 0b0011010 = 0x1a.
Section 3 indicates the module has 4 pairs of data lines. While 4-lane
mode is nominal, 2-lane mode should also be supported.

The pin muxing info was extracted from the PinePhone Pro schematic v1.0
as well as the RK3399 datasheet revision 1.8.

Table 2-3 in section 2.8 of the RK3399 datasheet contains the mapping
of IO functions for the SoC pins. Page 52 shows GPIO1_A0, page 54 shows
GPIO2_D4.

For I2C power, the PinePhone Pro schematic page 11 quadrants A4 and A5:
RK3399_J.AA8 and RK3399_J.Y8 get power from vcaa1v8_codec, so turn it on

The IMX258 also uses the following regulators, expected by its driver:
 - vana (2.8V analog), called AVDD2V8_DVP on P.18 q.C1 and derived from
   VCC1V8_S3 on P.13 q.B2
 - vdig (1.2V digital core), called DVDD_DVP on P.18 q.C1 and shown on
   P.18 q.D3 to be equivalent to VCC1V2_DVP derived from VCC3V3_SYS on
   P.13 q.B3. Note that this regulator's voltage is inconsistently
   labeled either 1.2V or 1.5V

RK3399_J.AG1 is GPIO4_A1/I2C1_SDA, RK3399_J.Y6 is GPIO4_A2/I2C1_SCL
This is the default pinctrl "i2c1_xfer" for i2c1 from rk3399-base.

For the reset (RESET) signal:
page 11 quadrant D2             | p.18 q.C3-4 | p.18 q.C2
RK3399_E.R25 -> GPIO1_A0 -> Camera_RST -> MIPI_RST0 -> IMX258.12

For the powerdown (PWDN) signal:
page 11 quadrants B4-5          | p.18 q.C2
RK3399_G.AF8 -> GPIO2_D4 -> DVP_PDN1_H -> IMX258.14

Helped-by: Dragan Simic <dsimic@manjaro.org>
Co-developed-by: Ondrej Jirman <megi@xff.cz>
Signed-off-by: Ondrej Jirman <megi@xff.cz>
Signed-off-by: Olivier Benjamin <olivier.benjamin@bootlin.com>
Link: https://lore.kernel.org/r/20250620-camera-v4-3-0201a8ed5fae@bootlin.com
Signed-off-by: Heiko Stuebner <heiko@sntech.de>
This commit is contained in:
Olivier Benjamin 2025-06-20 17:21:34 +02:00 committed by Heiko Stuebner
parent f2792bf1c7
commit 9336eb829a
1 changed files with 94 additions and 0 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

94
arch/arm64/boot/dts/rockchip/rk3399-pinephone-pro.dts
View File

@ -104,6 +104,16 @@ vcc_sys: regulator-vcc-sys {
regulator-boot-on;
};
avdd2v8_dvp: regulator-avdd2v8-dvp {
compatible = "regulator-fixed";
regulator-name = "avdd2v8_dvp";
regulator-always-on;
regulator-boot-on;
regulator-min-microvolt = <2800000>;
regulator-max-microvolt = <2800000>;
vin-supply = <&vcc3v3_sys>;
};
vcc3v3_sys: regulator-vcc3v3-sys {
compatible = "regulator-fixed";
regulator-name = "vcc3v3_sys";
@ -136,6 +146,16 @@ vcc1v8_codec: regulator-vcc1v8-codec {
vin-supply = <&vcc3v3_sys>;
};
vcc1v2_dvp: regulator-vcc1v2-dvp {
compatible = "regulator-fixed";
regulator-name = "vcc1v2_dvp";
regulator-always-on;
regulator-boot-on;
regulator-min-microvolt = <1200000>;
regulator-max-microvolt = <1200000>;
vin-supply = <&vcca1v8_s3>;
};
wifi_pwrseq: sdio-wifi-pwrseq {
compatible = "mmc-pwrseq-simple";
clocks = <&rk818 1>;
@ -312,6 +332,8 @@ vcc3v0_touch: LDO_REG2 {
vcca1v8_codec: LDO_REG3 {
regulator-name = "vcca1v8_codec";
regulator-always-on;
regulator-boot-on;
regulator-min-microvolt = <1800000>;
regulator-max-microvolt = <1800000>;
};
@ -420,6 +442,46 @@ regulator-state-mem {
};
};
&i2c1 {
assigned-clocks = <&cru SCLK_CIF_OUT>;
assigned-clock-rates = <24000000>;
clock-frequency = <400000>;
pinctrl-names = "default";
pinctrl-0 = <&i2c1_xfer &cif_clkouta>;
status = "okay";
wcam: camera@1a {
compatible = "sony,imx258";
reg = <0x1a>;
clocks = <&cru SCLK_CIF_OUT>; /* MIPI_MCLK0, derived from CIF_CLKO */
lens-focus = <&wcam_lens>;
orientation = <1>; /* V4L2_CAMERA_ORIENTATION_BACK */
pinctrl-names = "default";
pinctrl-0 = <&camera_rst_l>;
reset-gpios = <&gpio1 RK_PA0 GPIO_ACTIVE_LOW>;
rotation = <270>;
/* Note: both cameras also depend on vcca1v8_codec to power the I2C bus. */
vif-supply = <&vcc1v8_dvp>;
vana-supply = <&avdd2v8_dvp>;
vdig-supply = <&vcc1v2_dvp>; /* DVDD_DVP is the same as VCC1V2_DVP */
port {
wcam_out: endpoint {
data-lanes = <1 2 3 4>;
link-frequencies = /bits/ 64 <636000000>;
remote-endpoint = <&mipi_in_wcam>;
};
};
};
wcam_lens: camera-lens@c {
compatible = "dongwoon,dw9714";
reg = <0x0c>;
/* Same I2c bus as both cameras, depends on vcca1v8_codec for power. */
vcc-supply = <&vcc1v8_dvp>;
};
};
&i2c3 {
i2c-scl-rising-time-ns = <450>;
i2c-scl-falling-time-ns = <15>;
@ -462,6 +524,28 @@ &io_domains {
status = "okay";
};
&isp1 {
status = "okay";
ports {
port@0 {
mipi_in_wcam: endpoint@0 {
reg = <0>;
data-lanes = <1 2 3 4>;
remote-endpoint = <&wcam_out>;
};
};
};
};
&mipi_dphy_rx0 {
status = "okay";
};
&isp1_mmu {
status = "okay";
};
&mipi_dsi {
clock-master;
status = "okay";
@ -490,6 +574,10 @@ mipi_out_panel: endpoint {
};
};
&mipi_dsi1 {
status = "okay";
};
&pmu_io_domains {
pmu1830-supply = <&vcc_1v8>;
status = "okay";
@ -508,6 +596,12 @@ lcd1_rst_pin: lcd1-rst-pin {
};
};
camera {
camera_rst_l: camera-rst-l {
rockchip,pins = <1 RK_PA0 RK_FUNC_GPIO &pcfg_pull_none>;
};
};
leds {
red_led_pin: red-led-pin {
rockchip,pins = <4 RK_PD2 RK_FUNC_GPIO &pcfg_pull_none>;