Re: [PATCH v3 02/15] dt-bindings: display: rockchip: analogix-dp: Add support for RK3588

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Hi Krzysztof,

On 2024/12/19 16:28, Krzysztof Kozlowski wrote:
On Thu, Dec 19, 2024 at 04:05:51PM +0800, Damon Ding wrote:
Compared with RK3288/RK3399, the HBR2 link rate support is the main
improvement of RK3588 eDP TX controller, and there are also two
independent eDP display interfaces on RK3588 Soc.

Acked-by: Krzysztof Kozlowski <krzysztof.kozlowski@xxxxxxxxxx>

Drop, patch was very different.

Signed-off-by: Damon Ding <damon.ding@xxxxxxxxxxxxxx>

---

Changes in v2:
- Add the main defferences of the RK3588 eDP and the previous versions
   in commit message

Changes in v3:
- expand the property clock-names, resets and reset-names

Adding new properties invalidates reviews. The patch is entirely, really
significantly different so keeping the review is not acceptable.

---
  .../display/rockchip/rockchip,analogix-dp.yaml     | 14 +++++++++++---
  1 file changed, 11 insertions(+), 3 deletions(-)

diff --git a/Documentation/devicetree/bindings/display/rockchip/rockchip,analogix-dp.yaml b/Documentation/devicetree/bindings/display/rockchip/rockchip,analogix-dp.yaml
index 60dedf9b2be7..4f84e8849876 100644
--- a/Documentation/devicetree/bindings/display/rockchip/rockchip,analogix-dp.yaml
+++ b/Documentation/devicetree/bindings/display/rockchip/rockchip,analogix-dp.yaml
@@ -15,6 +15,7 @@ properties:
      enum:
        - rockchip,rk3288-dp
        - rockchip,rk3399-edp
+      - rockchip,rk3588-edp
clocks:
      minItems: 2
@@ -25,16 +26,23 @@ properties:
      items:
        - const: dp
        - const: pclk
-      - const: grf
+      - enum:
+          - grf
+          - spdif

No, this cannot be flexible for existing variants.

I will drop the 'spdif' because the audio feature has not been added to the analogix-dp driver in this patch series.


power-domains:
      maxItems: 1
resets:
-    maxItems: 1
+    minItems: 1
+    maxItems: 2

No, you must list the items.

reset-names:
-    const: dp
+    minItems: 1
+    items:
+      - const: dp
+      - enum:
+          - apb

I don't understand what happened here but all this is NAK. Why suddenly
existing variants became different/changed? Nothing in commit msg
explains this.

The newly added 'apb' reset is to ensure the APB bus of eDP controller works well on the RK3588 SoC. I will mention it in commit message in the next version.

The fixed patch will be like:

@@ -31,10 +32,12 @@ properties:
     maxItems: 1

   resets:
-    maxItems: 1
+    maxItems: 2

   reset-names:
-    const: dp
+    items:
+      - const: dp
+      - const: apb

   rockchip,grf:
     $ref: /schemas/types.yaml#/definitions/phandle

And I will add the APB reset operation in Rockchip analogix-dp driver, which was forgotten in the [PATCH v3 03/15].

Best regards,
Damon




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