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Message-ID: <78cc9c0faafcab3375f74a4f52790a52@codeaurora.org>
Date: Tue, 05 Oct 2021 13:56:16 -0700
From: abhinavk@...eaurora.org
To: Bjorn Andersson <bjorn.andersson@...aro.org>
Cc: Rob Clark <robdclark@...il.com>, Sean Paul <sean@...rly.run>,
David Airlie <airlied@...ux.ie>,
Daniel Vetter <daniel@...ll.ch>,
Rob Herring <robh+dt@...nel.org>,
Stephen Boyd <swboyd@...omium.org>,
Kuogee Hsieh <khsieh@...eaurora.org>,
Tanmay Shah <tanmay@...eaurora.org>,
Chandan Uddaraju <chandanu@...eaurora.org>,
linux-arm-msm@...r.kernel.org, dri-devel@...ts.freedesktop.org,
freedreno@...ts.freedesktop.org, devicetree@...r.kernel.org,
linux-kernel@...r.kernel.org, Rob Herring <robh@...nel.org>
Subject: Re: [Freedreno] [PATCH v3 1/5] dt-bindings: msm/dp: Change reg
definition
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@...omium.org>
> Reviewed-by: Rob Herring <robh@...nel.org>
> Signed-off-by: Bjorn Andersson <bjorn.andersson@...aro.org>
Reviewed-by: Abhinav Kumar <abhinavk@...eaurora.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@...0000 {
> 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>,
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