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[v2,05/16] dt-bindings: display/msm: dp-controller: Add SM8750

Message ID 20250217-b4-sm8750-display-v2-5-d201dcdda6a4@linaro.org (mailing list archive)
State Not Applicable
Headers show
Series drm/msm: Add support for SM8750 | expand

Commit Message

Krzysztof Kozlowski Feb. 17, 2025, 4:41 p.m. UTC
Add DisplayPort controller for Qualcomm SM8750 SoC which so far looks
fully compatible with earlier SM8650 variant.

Signed-off-by: Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org>
---
 Documentation/devicetree/bindings/display/msm/dp-controller.yaml | 4 ++++
 1 file changed, 4 insertions(+)

Comments

Dmitry Baryshkov Feb. 17, 2025, 6:58 p.m. UTC | #1
On Mon, Feb 17, 2025 at 05:41:26PM +0100, Krzysztof Kozlowski wrote:
> Add DisplayPort controller for Qualcomm SM8750 SoC which so far looks
> fully compatible with earlier SM8650 variant.

As that became a question for QCS8300, does SM8750 also support exactly
two MST streams?

> 
> Signed-off-by: Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org>
> ---
>  Documentation/devicetree/bindings/display/msm/dp-controller.yaml | 4 ++++
>  1 file changed, 4 insertions(+)
> 
> diff --git a/Documentation/devicetree/bindings/display/msm/dp-controller.yaml b/Documentation/devicetree/bindings/display/msm/dp-controller.yaml
> index e00b88332f2fed2fc33f6d72c5cc3d827cd7594e..a4bf9e07a28355c0391d1757fab16ebe5ff14a44 100644
> --- a/Documentation/devicetree/bindings/display/msm/dp-controller.yaml
> +++ b/Documentation/devicetree/bindings/display/msm/dp-controller.yaml
> @@ -37,6 +37,10 @@ properties:
>                - qcom,sm8450-dp
>                - qcom,sm8550-dp
>            - const: qcom,sm8350-dp
> +      - items:
> +          - enum:
> +              - qcom,sm8750-dp
> +          - const: qcom,sm8650-dp
>  
>    reg:
>      minItems: 4
> 
> -- 
> 2.43.0
>
Krzysztof Kozlowski Feb. 19, 2025, 5:02 p.m. UTC | #2
On 17/02/2025 19:58, Dmitry Baryshkov wrote:
> On Mon, Feb 17, 2025 at 05:41:26PM +0100, Krzysztof Kozlowski wrote:
>> Add DisplayPort controller for Qualcomm SM8750 SoC which so far looks
>> fully compatible with earlier SM8650 variant.
> 
> As that became a question for QCS8300, does SM8750 also support exactly
> two MST streams?

v1.5 of DP (starting from SA8775p , then SM8650 and SM8750) support 4x
MST for DPTX0 and 2x MST for DPTX1.

The DP in SM8650 and SM8750 are identical, according to datasheet (v1.5.1).


Best regards,
Krzysztof
Dmitry Baryshkov Feb. 19, 2025, 5:08 p.m. UTC | #3
On Wed, Feb 19, 2025 at 06:02:20PM +0100, Krzysztof Kozlowski wrote:
> On 17/02/2025 19:58, Dmitry Baryshkov wrote:
> > On Mon, Feb 17, 2025 at 05:41:26PM +0100, Krzysztof Kozlowski wrote:
> >> Add DisplayPort controller for Qualcomm SM8750 SoC which so far looks
> >> fully compatible with earlier SM8650 variant.
> > 
> > As that became a question for QCS8300, does SM8750 also support exactly
> > two MST streams?
> 
> v1.5 of DP (starting from SA8775p , then SM8650 and SM8750) support 4x
> MST for DPTX0 and 2x MST for DPTX1.
> 
> The DP in SM8650 and SM8750 are identical, according to datasheet (v1.5.1).

Hmm. This also means that QCS8300 is compatible with SM8650. I'll let
Abhinav comment here.
diff mbox series

Patch

diff --git a/Documentation/devicetree/bindings/display/msm/dp-controller.yaml b/Documentation/devicetree/bindings/display/msm/dp-controller.yaml
index e00b88332f2fed2fc33f6d72c5cc3d827cd7594e..a4bf9e07a28355c0391d1757fab16ebe5ff14a44 100644
--- a/Documentation/devicetree/bindings/display/msm/dp-controller.yaml
+++ b/Documentation/devicetree/bindings/display/msm/dp-controller.yaml
@@ -37,6 +37,10 @@  properties:
               - qcom,sm8450-dp
               - qcom,sm8550-dp
           - const: qcom,sm8350-dp
+      - items:
+          - enum:
+              - qcom,sm8750-dp
+          - const: qcom,sm8650-dp
 
   reg:
     minItems: 4