Re: [PATCH 3/5] arm64: dts: ti: k3-j721e-sk: Fix dtbs_check warnings in IMX219 overlay

From: Yemike Abhilash Chandra
Date: Tue Apr 08 2025 - 05:04:27 EST


Hi Nishanth,

On 07/04/25 19:15, Nishanth Menon wrote:
$subject - the patch adds description for the supplies for the sensor.
Please fix the description.


In this patch, I am addressing all dtbs_check warnings generated from this overlay:

1. Adding the missing regulator node
2. Removing the incorrectly added clock-names property

Due to the inclusion of both changes, I opted for a more generic commit title.
Please let me know if you want me to split this patch into two separate patches
with specific commit titles and commit messages.

Thanks and Regards
Yemike Abhilash Chandra

On 17:10-20250401, Yemike Abhilash Chandra wrote:
The device tree bindings mandate three regulator nodes for the IMX219
sensor: VANA (analog), VDIG (digital core), and VDDL (digital I/O). Add the
necessary regulator nodes in the device tree overlay and also the device
tree bindings do not include a clock-names property. Remove the incorrectly
added clock-names entry to avoid dtbs_check warnings.

Fixes: f767eb918096 ("arm64: dts: ti: k3-j721e-sk: Add overlay for IMX219")
Signed-off-by: Yemike Abhilash Chandra <y-abhilashchandra@xxxxxx>
---
.../dts/ti/k3-j721e-sk-csi2-dual-imx219.dtso | 35 +++++++++++++++++--
1 file changed, 33 insertions(+), 2 deletions(-)

diff --git a/arch/arm64/boot/dts/ti/k3-j721e-sk-csi2-dual-imx219.dtso b/arch/arm64/boot/dts/ti/k3-j721e-sk-csi2-dual-imx219.dtso
index 47bb5480b5b0..4eb3cffab032 100644
--- a/arch/arm64/boot/dts/ti/k3-j721e-sk-csi2-dual-imx219.dtso
+++ b/arch/arm64/boot/dts/ti/k3-j721e-sk-csi2-dual-imx219.dtso
@@ -19,6 +19,33 @@ clk_imx219_fixed: imx219-xclk {
#clock-cells = <0>;
clock-frequency = <24000000>;
};
+
+ reg_2p8v: regulator-2p8v {
+ compatible = "regulator-fixed";
+ regulator-name = "2P8V";
+ regulator-min-microvolt = <2800000>;
+ regulator-max-microvolt = <2800000>;
+ vin-supply = <&vdd_sd_dv>;
+ regulator-always-on;
+ };
+
+ reg_1p8v: regulator-1p8v {
+ compatible = "regulator-fixed";
+ regulator-name = "1P8V";
+ regulator-min-microvolt = <1800000>;
+ regulator-max-microvolt = <1800000>;
+ vin-supply = <&vdd_sd_dv>;
+ regulator-always-on;
+ };
+
+ reg_1p2v: regulator-1p2v {
+ compatible = "regulator-fixed";
+ regulator-name = "1P2V";
+ regulator-min-microvolt = <1200000>;
+ regulator-max-microvolt = <1200000>;
+ vin-supply = <&vdd_sd_dv>;
+ regulator-always-on;
+ };
};
&csi_mux {
@@ -34,7 +61,9 @@ imx219_0: imx219-0@10 {
reg = <0x10>;
clocks = <&clk_imx219_fixed>;
- clock-names = "xclk";
+ VANA-supply = <&reg_2p8v>;
+ VDIG-supply = <&reg_1p8v>;
+ VDDL-supply = <&reg_1p2v>;
port {
csi2_cam0: endpoint {
@@ -56,7 +85,9 @@ imx219_1: imx219-1@10 {
reg = <0x10>;
clocks = <&clk_imx219_fixed>;
- clock-names = "xclk";
+ VANA-supply = <&reg_2p8v>;
+ VDIG-supply = <&reg_1p8v>;
+ VDDL-supply = <&reg_1p2v>;
port {
csi2_cam1: endpoint {
--
2.34.1