Hi Neha,
On 11/04/25 19:08, Francis, Neha wrote:
On 4/9/2025 7:11 PM, Yemike Abhilash Chandra wrote:
The device tree overlay for the IMX219 sensor requires three voltage supplies to be defined: VANA (analog), VDIG (digital core), and VDDL (digital I/O). Add the corresponding voltage supply definitions to avoid dtbs_check warnings.
Fixes: f767eb918096 ("arm64: dts: ti: k3-j721e-sk: Add overlay for IMX219") Cc: stable@vger.kernel.org Signed-off-by: Yemike Abhilash Chandra y-abhilashchandra@ti.com
.../dts/ti/k3-j721e-sk-csi2-dual-imx219.dtso | 33 +++++++++++++++++++ 1 file changed, 33 insertions(+)
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 4a395d1209c8..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
The link to the schematics seems to need updation, would like to see where these regulators are mentioned, can't find them in [0] which I assume is the latest link.
Yes, It seems that the link to the schematics has been changed. I will submit a separate patch to fix that.
While the regulators are not clearly documented in the schematics, the voltage levels can be observed in the top-right corner of the schematics.
However, the required regulators are explicitly described in the device tree bindings. Please refer: ./Documentation/devicetree/bindings/media/i2c/imx219.yaml
Thanks and Regards Yemike Abhilash Chandra
@@ -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 { @@ -34,6 +61,9 @@ imx219_0: imx219-0@10 { reg = <0x10>; clocks = <&clk_imx219_fixed>;
VANA-supply = <®_2p8v>;VDIG-supply = <®_1p8v>;VDDL-supply = <®_1p2v>;port { csi2_cam0: endpoint { @@ -55,6 +85,9 @@ imx219_1: imx219-1@10 { reg = <0x10>; clocks = <&clk_imx219_fixed>;
VANA-supply = <®_2p8v>;VDIG-supply = <®_1p8v>;VDDL-supply = <®_1p2v>;port { csi2_cam1: endpoint {
[0] https://datasheets.raspberrypi.com/camera/camera-module-2-schematics.pdf