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From: abhinavk@codeaurora.org
To: Bjorn Andersson <bjorn.andersson@linaro.org>
Cc: Rob Clark <robdclark@gmail.com>, Sean Paul <sean@poorly.run>,
	David Airlie <airlied@linux.ie>, Daniel Vetter <daniel@ffwll.ch>,
	Rob Herring <robh+dt@kernel.org>,
	Stephen Boyd <swboyd@chromium.org>,
	Kuogee Hsieh <khsieh@codeaurora.org>,
	Tanmay Shah <tanmay@codeaurora.org>,
	Chandan Uddaraju <chandanu@codeaurora.org>,
	linux-arm-msm@vger.kernel.org, dri-devel@lists.freedesktop.org,
	freedreno@lists.freedesktop.org, devicetree@vger.kernel.org,
	linux-kernel@vger.kernel.org
Subject: Re: [PATCH 1/5] dt-bindings: msm/dp: Change reg definition
Date: Fri, 23 Jul 2021 13:05:38 -0700	[thread overview]
Message-ID: <6318d5abc7f1ed9622218bf29394ec64@codeaurora.org> (raw)
In-Reply-To: <20210722024227.3313096-2-bjorn.andersson@linaro.org>

On 2021-07-21 19:42, 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.
> 
> Signed-off-by: Bjorn Andersson <bjorn.andersson@linaro.org>

> ---
>  .../bindings/display/msm/dp-controller.yaml           | 11 +++++++++--
>  1 file changed, 9 insertions(+), 2 deletions(-)
> 
> diff --git
> a/Documentation/devicetree/bindings/display/msm/dp-controller.yaml
> b/Documentation/devicetree/bindings/display/msm/dp-controller.yaml
> index 64d8d9e5e47a..a6e41be038fc 100644
> --- a/Documentation/devicetree/bindings/display/msm/dp-controller.yaml
> +++ b/Documentation/devicetree/bindings/display/msm/dp-controller.yaml
> @@ -19,7 +19,11 @@ properties:
>        - qcom,sc7180-dp
> 
>    reg:
> -    maxItems: 1
> +    items:
> +      - description: ahb register block
> +      - description: aux register block
> +      - description: link register block
> +      - description: p0 register block
Do you also want to add the p1 register block here?
> 
>    interrupts:
>      maxItems: 1
> @@ -100,7 +104,10 @@ examples:
> 
>      displayport-controller@ae90000 {
>          compatible = "qcom,sc7180-dp";
> -        reg = <0xae90000 0x1400>;
> +        reg = <0xae90000 0x200>,
> +              <0xae90200 0x200>,
> +              <0xae90400 0xc00>,
> +              <0xae91000 0x400>;
here too?
>          interrupt-parent = <&mdss>;
>          interrupts = <12>;
>          clocks = <&dispcc DISP_CC_MDSS_AHB_CLK>,



  parent reply	other threads:[~2021-07-23 20:06 UTC|newest]

Thread overview: 17+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2021-07-22  2:42 [PATCH 0/5] drm/msm/dp: Allow variation in register regions Bjorn Andersson
2021-07-22  2:42 ` [PATCH 1/5] dt-bindings: msm/dp: Change reg definition Bjorn Andersson
2021-07-22 19:33   ` Stephen Boyd
2021-07-23 20:05   ` abhinavk [this message]
2021-07-29 20:02   ` Rob Herring
2021-07-22  2:42 ` [PATCH 2/5] drm/msm/dp: Use devres for ioremap() Bjorn Andersson
2021-07-22 20:06   ` Stephen Boyd
2021-07-23 20:11   ` [Freedreno] " abhinavk
2021-07-22  2:42 ` [PATCH 3/5] drm/msm/dp: Refactor ioremap wrapper Bjorn Andersson
2021-07-22 20:09   ` Stephen Boyd
2021-07-23 20:16   ` [Freedreno] " abhinavk
2021-07-22  2:42 ` [PATCH 4/5] drm/msm/dp: Store each subblock in the io region Bjorn Andersson
2021-07-22 20:13   ` Stephen Boyd
2021-07-23 20:29   ` [Freedreno] " abhinavk
2021-07-22  2:42 ` [PATCH 5/5] drm/msm/dp: Allow sub-regions to be specified in DT Bjorn Andersson
2021-07-22 20:16   ` Stephen Boyd
2021-07-23 20:33   ` [Freedreno] " abhinavk

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