diff mbox series

[03/17] dt-bindings: i2c: samsung,s3c2410-i2c: add specific compatibles for existing SoC

Message ID 20231108104343.24192-4-krzysztof.kozlowski@linaro.org (mailing list archive)
State Handled Elsewhere
Headers show
Series dt-bindings: samsung: add specific compatibles for existing SoC | expand

Commit Message

Krzysztof Kozlowski Nov. 8, 2023, 10:43 a.m. UTC
Samsung Exynos SoC reuses several devices from older designs, thus
historically we kept the old (block's) compatible only.  This works fine
and there is no bug here, however guidelines expressed in
Documentation/devicetree/bindings/writing-bindings.rst state that:
1. Compatibles should be specific.
2. We should add new compatibles in case of bugs or features.

Add compatibles specific to each SoC in front of all old-SoC-like
compatibles.

Signed-off-by: Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org>

---

I propose to take the patch through Samsung SoC (me). See cover letter
for explanation.
---
 .../bindings/i2c/samsung,s3c2410-i2c.yaml     | 22 ++++++++++++-------
 1 file changed, 14 insertions(+), 8 deletions(-)

Comments

Wolfram Sang Nov. 9, 2023, 7:22 p.m. UTC | #1
On Wed, Nov 08, 2023 at 11:43:29AM +0100, Krzysztof Kozlowski wrote:
> Samsung Exynos SoC reuses several devices from older designs, thus
> historically we kept the old (block's) compatible only.  This works fine
> and there is no bug here, however guidelines expressed in
> Documentation/devicetree/bindings/writing-bindings.rst state that:
> 1. Compatibles should be specific.
> 2. We should add new compatibles in case of bugs or features.
> 
> Add compatibles specific to each SoC in front of all old-SoC-like
> compatibles.
> 
> Signed-off-by: Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org>
> 
> ---
> 
> I propose to take the patch through Samsung SoC (me). See cover letter
> for explanation.

I am fine that you take it once all review comments are addressed. Given
that:

Acked-by: Wolfram Sang <wsa@kernel.org>
Linus Walleij Nov. 9, 2023, 8:06 p.m. UTC | #2
On Wed, Nov 8, 2023 at 11:44 AM Krzysztof Kozlowski
<krzysztof.kozlowski@linaro.org> wrote:

> Samsung Exynos SoC reuses several devices from older designs, thus
> historically we kept the old (block's) compatible only.  This works fine
> and there is no bug here, however guidelines expressed in
> Documentation/devicetree/bindings/writing-bindings.rst state that:
> 1. Compatibles should be specific.
> 2. We should add new compatibles in case of bugs or features.
>
> Add compatibles specific to each SoC in front of all old-SoC-like
> compatibles.
>
> Signed-off-by: Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org>

Makes perfect sense to me:
Reviewed-by: Linus Walleij <linus.walleij@linaro.org>

Yours,
Linus Walleij
Rob Herring (Arm) Nov. 10, 2023, 8:39 p.m. UTC | #3
On Wed, Nov 08, 2023 at 11:43:29AM +0100, Krzysztof Kozlowski wrote:
> Samsung Exynos SoC reuses several devices from older designs, thus
> historically we kept the old (block's) compatible only.  This works fine
> and there is no bug here, however guidelines expressed in
> Documentation/devicetree/bindings/writing-bindings.rst state that:
> 1. Compatibles should be specific.
> 2. We should add new compatibles in case of bugs or features.
> 
> Add compatibles specific to each SoC in front of all old-SoC-like
> compatibles.
> 
> Signed-off-by: Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org>
> 
> ---
> 
> I propose to take the patch through Samsung SoC (me). See cover letter
> for explanation.
> ---
>  .../bindings/i2c/samsung,s3c2410-i2c.yaml     | 22 ++++++++++++-------
>  1 file changed, 14 insertions(+), 8 deletions(-)

Acked-by: Rob Herring <robh@kernel.org>
Alim Akhtar Nov. 11, 2023, 12:55 a.m. UTC | #4
> -----Original Message-----
> From: Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org>
> Sent: Wednesday, November 8, 2023 4:13 PM
> Samsung Exynos SoC reuses several devices from older designs, thus
> historically we kept the old (block's) compatible only.  This works fine and
> there is no bug here, however guidelines expressed in
> Documentation/devicetree/bindings/writing-bindings.rst state that:
> 1. Compatibles should be specific.
> 2. We should add new compatibles in case of bugs or features.
> 
> Add compatibles specific to each SoC in front of all old-SoC-like compatibles.
> 
> Signed-off-by: Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org>
> 
> ---

Reviewed-by: Alim Akhtar <alim.akhtar@samsung.com>

> 
> I propose to take the patch through Samsung SoC (me). See cover letter for
> explanation.
> ---
>  .../bindings/i2c/samsung,s3c2410-i2c.yaml     | 22 ++++++++++++-------
>  1 file changed, 14 insertions(+), 8 deletions(-)
(...)
diff mbox series

Patch

diff --git a/Documentation/devicetree/bindings/i2c/samsung,s3c2410-i2c.yaml b/Documentation/devicetree/bindings/i2c/samsung,s3c2410-i2c.yaml
index b204e35e4f8d..1303502cf265 100644
--- a/Documentation/devicetree/bindings/i2c/samsung,s3c2410-i2c.yaml
+++ b/Documentation/devicetree/bindings/i2c/samsung,s3c2410-i2c.yaml
@@ -11,14 +11,20 @@  maintainers:
 
 properties:
   compatible:
-    enum:
-      - samsung,s3c2410-i2c
-      - samsung,s3c2440-i2c
-        # For s3c2440-like I2C used inside HDMIPHY block found on several SoCs:
-      - samsung,s3c2440-hdmiphy-i2c
-        # For s3c2440-like I2C used as a host to SATA PHY controller on an
-        # internal bus:
-      - samsung,exynos5-sata-phy-i2c
+    oneOf:
+      - enum:
+          - samsung,s3c2410-i2c
+          - samsung,s3c2440-i2c
+            # For s3c2440-like I2C used inside HDMIPHY block found on several SoCs:
+          - samsung,s3c2440-hdmiphy-i2c
+            # For s3c2440-like I2C used as a host to SATA PHY controller on an
+            # internal bus:
+          - samsung,exynos5-sata-phy-i2c
+      - items:
+          - enum:
+              - samsung,exynos7885-i2c
+              - samsung,exynos850-i2c
+          - const: samsung,s3c2440-i2c
 
   '#address-cells':
     const: 1