[PATCH 0/3] Fix remaining TI K3 CHECK_DTBS warnings

[PATCH 0/3] Fix remaining TI K3 CHECK_DTBS warnings

[Andrew Davis]

Hello all,

Until we resolve this thread[0] we do not have a set direction for
modeling our device's controller devices. For now as the AM654 MAIN
domain controller region is already one of the messy combination
syscon + child device containing nodes, no harm in silencing this last
DT check warning in the meantime.

Depending on the outcome of [0], this series can be safely unwound in
a couple ways without any backwards nor forwards compatibility breaks.
So no need to wait on the outcome there to take this series.

The last patch should take care of the last CHECK_DTBS warning for K3.

Thanks,
Andrew

[0] https://lore.kernel.org/lkml/6241ff00-27e6-45ab-808e-f04e39854753@ti.com/

Andrew Davis (2):
  dt-bindings: mfd: ti,j721e-system-controller: Add compatible string
    for AM654
  arm64: dts: ti: am65x: Add missing power-supply for Rocktech-rk101
    panel

Jan Kiszka (1):
  arm64: dts: ti: k3-am65-main: add system controller compatible

 .../bindings/soc/ti/ti,j721e-system-controller.yaml | 13 +++++++++++++
 arch/arm64/boot/dts/ti/k3-am65-main.dtsi            |  2 +-
 .../k3-am654-base-board-rocktech-rk101-panel.dtso   | 12 ++++++++++++
 3 files changed, 26 insertions(+), 1 deletion(-)

-- 
2.39.2

[PATCH 1/3] dt-bindings: mfd: ti,j721e-system-controller: Add compatible string for AM654

[Andrew Davis]

Add the child nodes that can be found under this node. Then as done for
other similar devices (J7200 and J721s2) add support for the AM654 system
controller to this binding.

Signed-off-by: Andrew Davis <afd@ti.com>
---
 .../bindings/soc/ti/ti,j721e-system-controller.yaml | 13 +++++++++++++
 1 file changed, 13 insertions(+)

diff --git a/Documentation/devicetree/bindings/soc/ti/ti,j721e-system-controller.yaml b/Documentation/devicetree/bindings/soc/ti/ti,j721e-system-controller.yaml
index 13b6b6fa5dee7..f3bd0be3b279f 100644
--- a/Documentation/devicetree/bindings/soc/ti/ti,j721e-system-controller.yaml
+++ b/Documentation/devicetree/bindings/soc/ti/ti,j721e-system-controller.yaml
@@ -26,6 +26,7 @@ properties:
   compatible:
     items:
       - enum:
+          - ti,am654-system-controller
           - ti,j7200-system-controller
           - ti,j721e-system-controller
           - ti,j721s2-system-controller
@@ -73,6 +74,18 @@ patternProperties:
     description:
       The node corresponding to PCIe control register.
 
+  "^clock@[0-9a-f]+$":
+    type: object
+    $ref: /schemas/soc/ti/ti,am654-serdes-ctrl.yaml#
+    description:
+      This is the Serdes Control region.
+
+  "^dss-oldi-io-ctrl@[0-9a-f]+$":
+    type: object
+    $ref: /schemas/mfd/syscon.yaml#
+    description:
+      This is the DSS OLDI CTRL region.
+
 required:
   - compatible
   - reg
-- 
2.39.2

Re: [PATCH 1/3] dt-bindings: mfd: ti,j721e-system-controller: Add compatible string for AM654

[Rob Herring (Arm)]

On Mon, 21 Apr 2025 16:46:18 -0500, Andrew Davis wrote:
> Add the child nodes that can be found under this node. Then as done for
> other similar devices (J7200 and J721s2) add support for the AM654 system
> controller to this binding.
> 
> Signed-off-by: Andrew Davis <afd@ti.com>
> ---
>  .../bindings/soc/ti/ti,j721e-system-controller.yaml | 13 +++++++++++++
>  1 file changed, 13 insertions(+)
> 

Reviewed-by: Rob Herring (Arm) <robh@kernel.org>

[PATCH 2/3] arm64: dts: ti: k3-am65-main: add system controller compatible

[Andrew Davis]

From: Jan Kiszka <jan.kiszka@siemens.com>

Now that the TI K3 AM654 system controller bindings also cover the usage
in the main domain, add its compatible to address dtbs_check complaints:

  k3-am654-base-board.dtb: scm-conf@100000: compatible: ['syscon', 'simple-mfd'] is too short

Signed-off-by: Jan Kiszka <jan.kiszka@siemens.com>
Signed-off-by: Andrew Davis <afd@ti.com>
---
 arch/arm64/boot/dts/ti/k3-am65-main.dtsi | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/arch/arm64/boot/dts/ti/k3-am65-main.dtsi b/arch/arm64/boot/dts/ti/k3-am65-main.dtsi
index 94a812a1355ba..6d3c467d7038c 100644
--- a/arch/arm64/boot/dts/ti/k3-am65-main.dtsi
+++ b/arch/arm64/boot/dts/ti/k3-am65-main.dtsi
@@ -479,7 +479,7 @@ sdhci1: mmc@4fa0000 {
 	};
 
 	scm_conf: scm-conf@100000 {
-		compatible = "syscon", "simple-mfd";
+		compatible = "ti,am654-system-controller", "syscon", "simple-mfd";
 		reg = <0 0x00100000 0 0x1c000>;
 		#address-cells = <1>;
 		#size-cells = <1>;
-- 
2.39.2

[PATCH 3/3] arm64: dts: ti: am65x: Add missing power-supply for Rocktech-rk101 panel

[Andrew Davis]

Add the 5v0 supply that is provided over the display panel cable and
used by the LCD. This is required by "simple panels" or we get the
following warning from DTBS_CHECK:

k3-am654-gp-evm.dtb: display0: 'power-supply' is a required property

Signed-off-by: Andrew Davis <afd@ti.com>
---
 .../ti/k3-am654-base-board-rocktech-rk101-panel.dtso | 12 ++++++++++++
 1 file changed, 12 insertions(+)

diff --git a/arch/arm64/boot/dts/ti/k3-am654-base-board-rocktech-rk101-panel.dtso b/arch/arm64/boot/dts/ti/k3-am654-base-board-rocktech-rk101-panel.dtso
index 364c57b3b3a06..7a3953d64fd84 100644
--- a/arch/arm64/boot/dts/ti/k3-am654-base-board-rocktech-rk101-panel.dtso
+++ b/arch/arm64/boot/dts/ti/k3-am654-base-board-rocktech-rk101-panel.dtso
@@ -15,8 +15,20 @@
 #include <dt-bindings/interrupt-controller/irq.h>
 
 &{/} {
+	vcc_5v0: lcd-regulator {
+		/* Output of LM5140 */
+		compatible = "regulator-fixed";
+		regulator-name = "vcc_5v0";
+		regulator-min-microvolt = <5000000>;
+		regulator-max-microvolt = <5000000>;
+		regulator-always-on;
+		regulator-boot-on;
+		vin-supply = <&evm_12v0>;
+	};
+
 	display0 {
 		compatible = "rocktech,rk101ii01d-ct";
+		power-supply = <&vcc_5v0>;
 		backlight = <&lcd_bl>;
 		enable-gpios = <&pca9555 8 GPIO_ACTIVE_HIGH>;
 		port {
-- 
2.39.2

Re: [PATCH 0/3] Fix remaining TI K3 CHECK_DTBS warnings

[Nishanth Menon]

Hi Andrew Davis,

On Mon, 21 Apr 2025 16:46:17 -0500, Andrew Davis wrote:
> Until we resolve this thread[0] we do not have a set direction for
> modeling our device's controller devices. For now as the AM654 MAIN
> domain controller region is already one of the messy combination
> syscon + child device containing nodes, no harm in silencing this last
> DT check warning in the meantime.
> 
> Depending on the outcome of [0], this series can be safely unwound in
> a couple ways without any backwards nor forwards compatibility breaks.
> So no need to wait on the outcome there to take this series.
> 
> [...]

I have applied the following to branch ti-k3-dts-next on [1].
Thank you!

[1/3] dt-bindings: mfd: ti,j721e-system-controller: Add compatible string for AM654
      commit: 5959618631fec502ec0963f4082d565f7fbfff04
[2/3] arm64: dts: ti: k3-am65-main: add system controller compatible
      commit: 4765253055cc8ab3fdc5f9eb5b121d867e209fb1
[3/3] arm64: dts: ti: am65x: Add missing power-supply for Rocktech-rk101 panel
      commit: ae3ac9ffd59acf46b8934f4e7a5fa7a6803ac959

All being well this means that it will be integrated into the linux-next
tree (usually sometime in the next 24 hours) and sent up the chain during
the next merge window (or sooner if it is a relevant bug fix), however if
problems are discovered then the patch may be dropped or reverted.

You may get further e-mails resulting from automated or manual testing
and review of the tree, please engage with people reporting problems and
send followup patches addressing any issues that are reported if needed.

If any updates are required or you are submitting further changes they
should be sent as incremental updates against current git, existing
patches will not be replaced.

Please add any relevant lists and maintainers to the CCs when replying
to this mail.

[1] https://git.kernel.org/pub/scm/linux/kernel/git/ti/linux.git
-- 
Regards,
Nishanth Menon
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