From: Akhil P Oommen <akhilpo@codeaurora.org>
To: freedreno@lists.freedesktop.org, devicetree@vger.kernel.org
Cc: robh@kernel.org, dri-devel@freedesktop.org,
linux-arm-msm@vger.kernel.org, linux-kernel@vger.kernel.org,
jcrouse@codeaurora.org, mka@chromium.org, robdclark@gmail.com,
dianders@chromium.org
Subject: [PATCH v3 3/3] dt-bindings: drm/msm/gpu: Add cooling device support
Date: Wed, 28 Oct 2020 19:09:54 +0530 [thread overview]
Message-ID: <1603892395-3570-3-git-send-email-akhilpo@codeaurora.org> (raw)
In-Reply-To: <1603892395-3570-1-git-send-email-akhilpo@codeaurora.org>
Add cooling device support to gpu. A cooling device is bound to a
thermal zone to allow thermal mitigation.
Signed-off-by: Akhil P Oommen <akhilpo@codeaurora.org>
---
Documentation/devicetree/bindings/display/msm/gpu.txt | 7 +++++++
1 file changed, 7 insertions(+)
diff --git a/Documentation/devicetree/bindings/display/msm/gpu.txt b/Documentation/devicetree/bindings/display/msm/gpu.txt
index 1af0ff1..090dcb3 100644
--- a/Documentation/devicetree/bindings/display/msm/gpu.txt
+++ b/Documentation/devicetree/bindings/display/msm/gpu.txt
@@ -39,6 +39,10 @@ Required properties:
a4xx Snapdragon SoCs. See
Documentation/devicetree/bindings/sram/qcom,ocmem.yaml.
+Optional properties:
+- #cooling-cells: The value must be 2. For details, please refer
+ Documentation/devicetree/bindings/thermal/thermal-cooling-devices.yaml.
+
Example 3xx/4xx:
/ {
@@ -61,6 +65,7 @@ Example 3xx/4xx:
power-domains = <&mmcc OXILICX_GDSC>;
operating-points-v2 = <&gpu_opp_table>;
iommus = <&gpu_iommu 0>;
+ #cooling-cells = <2>;
};
gpu_sram: ocmem@fdd00000 {
@@ -98,6 +103,8 @@ Example a6xx (with GMU):
reg = <0x5000000 0x40000>, <0x509e000 0x10>;
reg-names = "kgsl_3d0_reg_memory", "cx_mem";
+ #cooling-cells = <2>;
+
/*
* Look ma, no clocks! The GPU clocks and power are
* controlled entirely by the GMU
--
2.7.4
next prev parent reply other threads:[~2020-10-29 2:05 UTC|newest]
Thread overview: 6+ messages / expand[flat|nested] mbox.gz Atom feed top
2020-10-28 13:39 [PATCH v3 1/3] drm/msm: Add support for GPU cooling Akhil P Oommen
2020-10-28 13:39 ` [PATCH v3 2/3] arm64: dts: qcom: sc7180: Add gpu cooling support Akhil P Oommen
2020-10-29 0:39 ` [v3,2/3] " mka
2020-10-29 7:58 ` Akhil P Oommen
2020-10-28 13:39 ` Akhil P Oommen [this message]
2020-10-29 0:49 ` [v3,3/3] dt-bindings: drm/msm/gpu: Add cooling device support mka
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