diff mbox series

[v3,1/5] dt-bindings: msm/dp: Change reg definition

Message ID 20211001174400.981707-2-bjorn.andersson@linaro.org (mailing list archive)
State New, archived
Headers show
Series drm/msm/dp: Allow variation in register regions | expand

Commit Message

Bjorn Andersson Oct. 1, 2021, 5:43 p.m. UTC 
reg was defined as one region covering the entire DP block, but the
memory map is actually split in 4 regions and obviously the size of
these regions differs between platforms.

Switch the reg to require that all four regions are specified instead.
It is expected that the implementation will handle existing DTBs, even
though the schema defines the new layout.

Reviewed-by: Stephen Boyd <swboyd@chromium.org>
Reviewed-by: Rob Herring <robh@kernel.org>
Signed-off-by: Bjorn Andersson <bjorn.andersson@linaro.org>
---

Changes since v2:
- None

 .../bindings/display/msm/dp-controller.yaml         | 13 +++++++++++--
 1 file changed, 11 insertions(+), 2 deletions(-)

Comments

Abhinav Kumar Oct. 5, 2021, 8:56 p.m. UTC | #1 
On 2021-10-01 10:43, Bjorn Andersson wrote:
> reg was defined as one region covering the entire DP block, but the
> memory map is actually split in 4 regions and obviously the size of
> these regions differs between platforms.
> 
> Switch the reg to require that all four regions are specified instead.
> It is expected that the implementation will handle existing DTBs, even
> though the schema defines the new layout.
> 
> Reviewed-by: Stephen Boyd <swboyd@chromium.org>
> Reviewed-by: Rob Herring <robh@kernel.org>
> Signed-off-by: Bjorn Andersson <bjorn.andersson@linaro.org>
Reviewed-by: Abhinav Kumar <abhinavk@codeaurora.org>
> ---
> 
> Changes since v2:
> - None
> 
>  .../bindings/display/msm/dp-controller.yaml         | 13 +++++++++++--
>  1 file changed, 11 insertions(+), 2 deletions(-)
> 
> diff --git
> a/Documentation/devicetree/bindings/display/msm/dp-controller.yaml
> b/Documentation/devicetree/bindings/display/msm/dp-controller.yaml
> index d89b3c510c27..6bb424c21340 100644
> --- a/Documentation/devicetree/bindings/display/msm/dp-controller.yaml
> +++ b/Documentation/devicetree/bindings/display/msm/dp-controller.yaml
> @@ -19,7 +19,12 @@ properties:
>        - qcom,sc7180-dp
> 
>    reg:
> -    maxItems: 1
> +    items:
> +      - description: ahb register block
> +      - description: aux register block
> +      - description: link register block
> +      - description: p0 register block
> +      - description: p1 register block
> 
>    interrupts:
>      maxItems: 1
> @@ -99,7 +104,11 @@ examples:
> 
>      displayport-controller@ae90000 {
>          compatible = "qcom,sc7180-dp";
> -        reg = <0xae90000 0x1400>;
> +        reg = <0xae90000 0x200>,
> +              <0xae90200 0x200>,
> +              <0xae90400 0xc00>,
> +              <0xae91000 0x400>,
> +              <0xae91400 0x400>;
>          interrupt-parent = <&mdss>;
>          interrupts = <12>;
>          clocks = <&dispcc DISP_CC_MDSS_AHB_CLK>,
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 d89b3c510c27..6bb424c21340 100644
--- a/Documentation/devicetree/bindings/display/msm/dp-controller.yaml
+++ b/Documentation/devicetree/bindings/display/msm/dp-controller.yaml
@@ -19,7 +19,12 @@  properties:
       - qcom,sc7180-dp
 
   reg:
-    maxItems: 1
+    items:
+      - description: ahb register block
+      - description: aux register block
+      - description: link register block
+      - description: p0 register block
+      - description: p1 register block
 
   interrupts:
     maxItems: 1
@@ -99,7 +104,11 @@  examples:
 
     displayport-controller@ae90000 {
         compatible = "qcom,sc7180-dp";
-        reg = <0xae90000 0x1400>;
+        reg = <0xae90000 0x200>,
+              <0xae90200 0x200>,
+              <0xae90400 0xc00>,
+              <0xae91000 0x400>,
+              <0xae91400 0x400>;
         interrupt-parent = <&mdss>;
         interrupts = <12>;
         clocks = <&dispcc DISP_CC_MDSS_AHB_CLK>,