[PATCH v4 0/2] dt-bindings: mfd/pwm: Split st,stmpe cleanup into separate patches

[PATCH v4 0/2] dt-bindings: mfd/pwm: Split st,stmpe cleanup into separate patches

[Manish Baing]

Hello,

This series splits the previous single patch into two distinct changes
to avoid cross-subsystem merge coordination, as requested by Uwe.

The first patch addresses a validation gap in the MFD YAML schema,
and the second patch drops the redundant legacy PWM text binding.

Changes in v4:
- Split single patch into a 2-patch series based on feedback from Uwe
  Kleine-König to prevent cross-subsystem merge conflicts.

Changes in v3:
- Added 'required' properties to the pwm subnode in st,stmpe.yaml
  to close a validation gap identified by the Sashiko.
- Updated commit message and description to reflect MFD subsystem changes

Changes in v2:
- Drop the TXT file instead of converting to YAML, as the
  functionality is already covered by st,stmpe.yaml.
- Update the commit subject and description to reflect the drop.

Manish Baing (2):
  dt-bindings: mfd: st,stmpe: Add missing properties for PWM subnode
  dt-bindings: pwm: stmpe: drop legacy binding

 .../devicetree/bindings/mfd/st,stmpe.yaml      |  4 ++++
 .../devicetree/bindings/pwm/st,stmpe-pwm.txt   | 18 ------------------
 2 files changed, 4 insertions(+), 18 deletions(-)
 delete mode 100644 Documentation/devicetree/bindings/pwm/st,stmpe-pwm.txt

-- 
2.43.0

[PATCH v4 1/2] dt-bindings: mfd: st,stmpe: Add missing properties for PWM subnode

[Manish Baing]

The st,stmpe-pwm binding is already covered by the MFD schema in
Documentation/devicetree/bindings/mfd/st,stmpe.yaml. However, the
PWM subnode was missing a 'required' properties block. This allowed
Device Tree nodes to pass validation even if the 'compatible'
string was omitted. This omission could lead to probe failures
at runtime.

Fix the schema by adding the missing 'required' block.

Signed-off-by: Manish Baing <manishbaing2789@gmail.com>
Acked-by: Conor Dooley <conor.dooley@microchip.com>
Acked-by: Uwe Kleine-König <ukleinek@kernel.org>
---
 Documentation/devicetree/bindings/mfd/st,stmpe.yaml | 4 ++++
 1 file changed, 4 insertions(+)

diff --git a/Documentation/devicetree/bindings/mfd/st,stmpe.yaml b/Documentation/devicetree/bindings/mfd/st,stmpe.yaml
index df43878fbe18..4bb05d544901 100644
--- a/Documentation/devicetree/bindings/mfd/st,stmpe.yaml
+++ b/Documentation/devicetree/bindings/mfd/st,stmpe.yaml
@@ -127,6 +127,10 @@ properties:
       "#pwm-cells":
         const: 2
 
+    required:
+      - compatible
+      - "#pwm-cells"
+
   touchscreen:
     type: object
     $ref: /schemas/input/touchscreen/touchscreen.yaml#
-- 
2.43.0

[PATCH v4 2/2] dt-bindings: pwm: stmpe: drop legacy binding

[Manish Baing]

The st,stmpe-pwm binding is already covered by the MFD schema
Documentation/devicetree/bindings/mfd/st,stmpe.yaml. Remove the
obsolete and redundant text binding file.

Signed-off-by: Manish Baing <manishbaing2789@gmail.com>
Acked-by: Conor Dooley <conor.dooley@microchip.com>
Reviewed-by: Uwe Kleine-König <ukleinek@kernel.org>
---
 .../devicetree/bindings/pwm/st,stmpe-pwm.txt   | 18 ------------------
 1 file changed, 18 deletions(-)
 delete mode 100644 Documentation/devicetree/bindings/pwm/st,stmpe-pwm.txt

diff --git a/Documentation/devicetree/bindings/pwm/st,stmpe-pwm.txt b/Documentation/devicetree/bindings/pwm/st,stmpe-pwm.txt
deleted file mode 100644
index f401316e0248..000000000000
--- a/Documentation/devicetree/bindings/pwm/st,stmpe-pwm.txt
+++ /dev/null
@@ -1,18 +0,0 @@
-== ST STMPE PWM controller ==
-
-This is a PWM block embedded in the ST Microelectronics STMPE
-(ST Multi-Purpose Expander) chips. The PWM is registered as a
-subdevices of the STMPE MFD device.
-
-Required properties:
-- compatible: should be:
-  - "st,stmpe-pwm"
-- #pwm-cells: should be 2. See pwm.yaml in this directory for a description of
-  the cells format.
-
-Example:
-
-pwm0: pwm {
-	compatible = "st,stmpe-pwm";
-	#pwm-cells = <2>;
-};
-- 
2.43.0

Re: [PATCH v4 2/2] dt-bindings: pwm: stmpe: drop legacy binding

[Uwe Kleine-König]

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On Sat, May 23, 2026 at 05:32:51PM +0000, Manish Baing wrote:
> The st,stmpe-pwm binding is already covered by the MFD schema
> Documentation/devicetree/bindings/mfd/st,stmpe.yaml. Remove the
> obsolete and redundant text binding file.
> 
> Signed-off-by: Manish Baing <manishbaing2789@gmail.com>
> Acked-by: Conor Dooley <conor.dooley@microchip.com>
> Reviewed-by: Uwe Kleine-König <ukleinek@kernel.org>

Applied to
https://git.kernel.org/pub/scm/linux/kernel/git/ukleinek/linux.git pwm/for-next
with Rob's ack from v2.

Best regards
Uwe

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