From: Olivier Benjamin Date: Fri, 20 Jun 2025 15:21:34 +0000 (+0200) Subject: arm64: dts: rockchip: describe I2c Bus 1 and IMX258 world camera on PinePhone Pro X-Git-Url: http://git.ipfire.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=9336eb829a18bba910620cb2e3fc55fcdd4aeecc;p=thirdparty%2Fkernel%2Fstable.git arm64: dts: rockchip: describe I2c Bus 1 and IMX258 world camera on PinePhone Pro 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 Co-developed-by: Ondrej Jirman Signed-off-by: Ondrej Jirman Signed-off-by: Olivier Benjamin Link: https://lore.kernel.org/r/20250620-camera-v4-3-0201a8ed5fae@bootlin.com Signed-off-by: Heiko Stuebner --- diff --git a/arch/arm64/boot/dts/rockchip/rk3399-pinephone-pro.dts b/arch/arm64/boot/dts/rockchip/rk3399-pinephone-pro.dts index 909ed14035f7..8418be9e2d62 100644 --- a/arch/arm64/boot/dts/rockchip/rk3399-pinephone-pro.dts +++ b/arch/arm64/boot/dts/rockchip/rk3399-pinephone-pro.dts @@ -104,6 +104,16 @@ 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 @@ 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 @@ 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 @@ }; }; +&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 @@ 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_dsi1 { + status = "okay"; +}; + &pmu_io_domains { pmu1830-supply = <&vcc_1v8>; status = "okay"; @@ -508,6 +596,12 @@ }; }; + 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>;