From 23a5409369b11e9174ba95ba8ddedcffacdf9529 Mon Sep 17 00:00:00 2001 From: Rishikesh Donadkar Date: Fri, 2 May 2025 21:55:38 +0530 Subject: [PATCH] arm64: dts: ti: k3-am62x: Add required voltage supplies for OV5640 The device tree overlay for OV5640 requires following voltage supplies as mentioned in the table 8-3 of the data-sheet [1]. AVDD-supply: Analog voltage supply, 2.8 volts DOVDD-supply: Digital I/O voltage supply, 1.8 volts DVDD-supply: Digital core voltage supply, 1.5 volts Add them in the overlay. Link: https://cdn.sparkfun.com/datasheets/Sensors/LightImaging/OV5640_datasheet.pdf Reviewed-by: Devarsh Thakkar Signed-off-by: Rishikesh Donadkar Link: https://lore.kernel.org/r/20250502162539.322091-4-r-donadkar@ti.com Signed-off-by: Nishanth Menon --- .../boot/dts/ti/k3-am62x-sk-csi2-ov5640.dtso | 32 +++++++++++++++++++ 1 file changed, 32 insertions(+) diff --git a/arch/arm64/boot/dts/ti/k3-am62x-sk-csi2-ov5640.dtso b/arch/arm64/boot/dts/ti/k3-am62x-sk-csi2-ov5640.dtso index 7fc7c95f5cd5..fc77fc77fe0b 100644 --- a/arch/arm64/boot/dts/ti/k3-am62x-sk-csi2-ov5640.dtso +++ b/arch/arm64/boot/dts/ti/k3-am62x-sk-csi2-ov5640.dtso @@ -15,6 +15,33 @@ #clock-cells = <0>; clock-frequency = <12000000>; }; + + reg_2p8v: regulator-2p8v { + compatible = "regulator-fixed"; + regulator-name = "2P8V"; + regulator-min-microvolt = <2800000>; + regulator-max-microvolt = <2800000>; + vin-supply = <&vcc_3v3_sys>; + regulator-always-on; + }; + + reg_1p8v: regulator-1p8v { + compatible = "regulator-fixed"; + regulator-name = "1P8V"; + regulator-min-microvolt = <1800000>; + regulator-max-microvolt = <1800000>; + vin-supply = <&vcc_3v3_sys>; + regulator-always-on; + }; + + reg_1p5v: regulator-1p5v { + compatible = "regulator-fixed"; + regulator-name = "1P5V"; + regulator-min-microvolt = <1500000>; + regulator-max-microvolt = <1500000>; + vin-supply = <&vcc_3v3_sys>; + regulator-always-on; + }; }; &main_i2c2 { @@ -40,6 +67,11 @@ clocks = <&clk_ov5640_fixed>; clock-names = "xclk"; + + AVDD-supply = <®_2p8v>; + DOVDD-supply = <®_1p8v>; + DVDD-supply = <®_1p5v>; + powerdown-gpios = <&exp1 13 GPIO_ACTIVE_LOW>; port { -- 2.50.1