linux-kernel - [PATCH 8/9] arm64: dts: qcom: msm8996: Add "simple-bus" to our mdss node

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Message-Id: <20200710160131.8.I7a02e4b37149190227bc03fd1027c8241d8d4f4a@changeid>
Date:   Fri, 10 Jul 2020 16:02:23 -0700
From:   Douglas Anderson <dianders@...omium.org>
To:     Rob Herring <robh+dt@...nel.org>, Rob Clark <robdclark@...il.com>,
        Sean Paul <sean@...rly.run>, Andy Gross <agross@...nel.org>,
        Bjorn Andersson <bjorn.andersson@...aro.org>
Cc:     dri-devel@...ts.freedesktop.org, linux-arm-msm@...r.kernel.org,
        freedreno@...ts.freedesktop.org, devicetree@...r.kernel.org,
        Douglas Anderson <dianders@...omium.org>,
        linux-kernel@...r.kernel.org
Subject: [PATCH 8/9] arm64: dts: qcom: msm8996: Add "simple-bus" to our mdss node

As described in the bindings patch, this means that our child nodes
are devices in their own right.

Signed-off-by: Douglas Anderson <dianders@...omium.org>
---
If this patch lands before the patch ("drm/msm: Avoid manually
populating our children if "simple-bus" is there") it doesn't seem to
be the end of the world.  The first time through
add_display_components() it'll notice that the children are already
populated and it will be a no-op.  When it gets a defer it will then
depouplate them (even though it didn't populate them) and future calls
will just populate them again.

NOTE: I have no way to test this patch, but I'm assuming it works OK?

 arch/arm64/boot/dts/qcom/msm8996.dtsi | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/arch/arm64/boot/dts/qcom/msm8996.dtsi b/arch/arm64/boot/dts/qcom/msm8996.dtsi
index 9951286db775..e303b0e644ac 100644
--- a/arch/arm64/boot/dts/qcom/msm8996.dtsi
+++ b/arch/arm64/boot/dts/qcom/msm8996.dtsi
@@ -499,7 +499,7 @@ mmcc: clock-controller@...000 {
 		};
 
 		mdss: mdss@...000 {
-			compatible = "qcom,mdss";
+			compatible = "qcom,mdss", "simple-bus";
 
 			reg = <0x00900000 0x1000>,
 			      <0x009b0000 0x1040>,
-- 
2.27.0.383.g050319c2ae-goog