[Freedreno] [PATCH v3 3/3] dt-bindings: msm/disp: Introduce interconnect bindings for MDSS on SDM845

2018-11-22 Thread Sravanthi Kollukuduru
Add interconnect properties such as interconnect provider specifier
, the edge source and destination ports which are required by the
interconnect API to configure interconnect path for MDSS.

Changes in v2:
- none

Changes in v3:
- Remove common property definitions (Rob Herring)

Signed-off-by: Sravanthi Kollukuduru 
---
 Documentation/devicetree/bindings/display/msm/dpu.txt | 9 +
 1 file changed, 9 insertions(+)

diff --git a/Documentation/devicetree/bindings/display/msm/dpu.txt 
b/Documentation/devicetree/bindings/display/msm/dpu.txt
index ad2e8830324e..d75b4360a4be 100644
--- a/Documentation/devicetree/bindings/display/msm/dpu.txt
+++ b/Documentation/devicetree/bindings/display/msm/dpu.txt
@@ -28,6 +28,11 @@ Required properties:
 - #address-cells: number of address cells for the MDSS children. Should be 1.
 - #size-cells: Should be 1.
 - ranges: parent bus address space is the same as the child bus address space.
+- interconnects : interconnect path specifier for MDSS according to
+  Documentation/devicetree/bindings/interconnect/interconnect.txt. Should be
+  2 paths corresponding to 2 AXI ports.
+- interconnect-names : MDSS will have 2 port names to differentiate between the
+  2 interconnect paths defined with interconnect specifier.
 
 Optional properties:
 - assigned-clocks: list of clock specifiers for clocks needing rate assignment
@@ -86,6 +91,10 @@ Example:
interrupt-controller;
#interrupt-cells = <1>;
 
+   interconnects = <&qnoc 38 &qnoc 512>,
+   <&qnoc 39 &qnoc 512>;
+   interconnect-names = "port0", "port1";
+
iommus = <&apps_iommu 0>;
 
#address-cells = <2>;
-- 
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a Linux Foundation Collaborative Project

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Re: [Freedreno] [PATCH v3 3/3] dt-bindings: msm/disp: Introduce interconnect bindings for MDSS on SDM845

2018-12-17 Thread Rob Herring
On Thu, 22 Nov 2018 14:36:53 +0530, Sravanthi Kollukuduru wrote:
> Add interconnect properties such as interconnect provider specifier
> , the edge source and destination ports which are required by the
> interconnect API to configure interconnect path for MDSS.
> 
> Changes in v2:
>   - none
> 
> Changes in v3:
>   - Remove common property definitions (Rob Herring)
> 
> Signed-off-by: Sravanthi Kollukuduru 
> ---
>  Documentation/devicetree/bindings/display/msm/dpu.txt | 9 +
>  1 file changed, 9 insertions(+)
> 

Reviewed-by: Rob Herring 
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Re: [Freedreno] [PATCH v3 3/3] dt-bindings: msm/disp: Introduce interconnect bindings for MDSS on SDM845

2018-12-19 Thread Georgi Djakov
Hi Sravanthi,

Thanks for the patch!

On 11/22/18 11:06, Sravanthi Kollukuduru wrote:
> Add interconnect properties such as interconnect provider specifier
> , the edge source and destination ports which are required by the
> interconnect API to configure interconnect path for MDSS.
> 
> Changes in v2:
>   - none
> 
> Changes in v3:
>   - Remove common property definitions (Rob Herring)
> 
> Signed-off-by: Sravanthi Kollukuduru 
> ---
>  Documentation/devicetree/bindings/display/msm/dpu.txt | 9 +
>  1 file changed, 9 insertions(+)
> 
> diff --git a/Documentation/devicetree/bindings/display/msm/dpu.txt 
> b/Documentation/devicetree/bindings/display/msm/dpu.txt
> index ad2e8830324e..d75b4360a4be 100644
> --- a/Documentation/devicetree/bindings/display/msm/dpu.txt
> +++ b/Documentation/devicetree/bindings/display/msm/dpu.txt
> @@ -28,6 +28,11 @@ Required properties:
>  - #address-cells: number of address cells for the MDSS children. Should be 1.
>  - #size-cells: Should be 1.
>  - ranges: parent bus address space is the same as the child bus address 
> space.
> +- interconnects : interconnect path specifier for MDSS according to
> +  Documentation/devicetree/bindings/interconnect/interconnect.txt. Should be
> +  2 paths corresponding to 2 AXI ports.
> +- interconnect-names : MDSS will have 2 port names to differentiate between 
> the
> +  2 interconnect paths defined with interconnect specifier.
>  
>  Optional properties:
>  - assigned-clocks: list of clock specifiers for clocks needing rate 
> assignment
> @@ -86,6 +91,10 @@ Example:
>   interrupt-controller;
>   #interrupt-cells = <1>;
>  
> + interconnects = <&qnoc 38 &qnoc 512>,
> + <&qnoc 39 &qnoc 512>;

Please use string names instead of hard-coded integers.

interconnects = <&rsc_hlos MASTER_MDP0 &rsc_hlos SLAVE_EBI1>,
<&rsc_hlos MASTER_MDP1 &rsc_hlos SLAVE_EBI1>;

> + interconnect-names = "port0", "port1";

We are trying to be more descriptive and include both the source and the
destination like: "mdp0-mem", "mdp1-mem"

> +
>   iommus = <&apps_iommu 0>;
>  
>   #address-cells = <2>;

Otherwise looks good.

Thanks,
Georgi
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