linux-kernel - [PATCH v2 2/4] dt-bindings: display/msm/gmu: Document RGMU

lists.openwall.net		lists / announce owl-users owl-dev john-users john-dev passwdqc-users yescrypt popa3d-users / oss-security kernel-hardening musl sabotage tlsify passwords / crypt-dev xvendor / Bugtraq Full-Disclosure linux-kernel linux-netdev linux-ext4 linux-hardening linux-cve-announce PHC
Open Source and information security mailing list archives

Hash Suite: Windows password security audit tool. GUI, reports in PDF.

[<prev] [next>] [<thread-prev] [thread-next>] [day] [month] [year] [list]

Message-ID: <20241213-qcs615-gpu-dt-v2-2-6606c64f03b5@quicinc.com>
Date: Fri, 13 Dec 2024 16:05:44 +0530
From: Akhil P Oommen <quic_akhilpo@...cinc.com>
To: Rob Clark <robdclark@...il.com>, Sean Paul <sean@...rly.run>,
        "Konrad
 Dybcio" <konradybcio@...nel.org>,
        Abhinav Kumar <quic_abhinavk@...cinc.com>,
        Dmitry Baryshkov <dmitry.baryshkov@...aro.org>,
        Marijn Suijten
	<marijn.suijten@...ainline.org>,
        Maarten Lankhorst
	<maarten.lankhorst@...ux.intel.com>,
        Maxime Ripard <mripard@...nel.org>,
        Thomas Zimmermann <tzimmermann@...e.de>,
        David Airlie <airlied@...il.com>, Simona Vetter <simona@...ll.ch>,
        Rob Herring <robh@...nel.org>,
        "Krzysztof
 Kozlowski" <krzk+dt@...nel.org>,
        Conor Dooley <conor+dt@...nel.org>,
        "Bjorn
 Andersson" <andersson@...nel.org>
CC: <linux-arm-msm@...r.kernel.org>, <dri-devel@...ts.freedesktop.org>,
        <freedreno@...ts.freedesktop.org>, <devicetree@...r.kernel.org>,
        <linux-kernel@...r.kernel.org>,
        Akhil P Oommen <quic_akhilpo@...cinc.com>,
        <20241104-add_initial_support_for_qcs615-v5-4-9dde8d7b80b0@...cinc.com>,
        <20241022-qcs615-clock-driver-v4-3-3d716ad0d987@...cinc.com>,
        <20240924143958.25-2-quic_rlaggysh@...cinc.com>,
        <20241108-qcs615-mm-clockcontroller-v3-7-7d3b2d235fdf@...cinc.com>,
        <20241108-qcs615-mm-dt-nodes-v1-1-b2669cac0624@...cinc.com>,
        <20241122074922.28153-1-quic_qqzhou@...cinc.com>
Subject: [PATCH v2 2/4] dt-bindings: display/msm/gmu: Document RGMU

RGMU a.k.a Reduced Graphics Management Unit is a small state machine
with the sole purpose of providing IFPC support. Compared to GMU, it
doesn't manage GPU clock, voltage scaling, bw voting or any other
functionalities. All it does is detect an idle GPU and toggle the
GDSC switch. So it doesn't require iommu & opp table.

Signed-off-by: Akhil P Oommen <quic_akhilpo@...cinc.com>
---
 Documentation/devicetree/bindings/display/msm/gmu.yaml | 7 +++++--
 1 file changed, 5 insertions(+), 2 deletions(-)

diff --git a/Documentation/devicetree/bindings/display/msm/gmu.yaml b/Documentation/devicetree/bindings/display/msm/gmu.yaml
index b1bd372996d5..6889dda7d4be 100644
--- a/Documentation/devicetree/bindings/display/msm/gmu.yaml
+++ b/Documentation/devicetree/bindings/display/msm/gmu.yaml
@@ -27,6 +27,7 @@ properties:
           - pattern: '^qcom,adreno-gmu-x[1-9][0-9][0-9]\.[0-9]$'
           - const: qcom,adreno-gmu
       - const: qcom,adreno-gmu-wrapper
+      - const: qcom,adreno-rgmu
 
   reg:
     minItems: 1
@@ -267,12 +268,14 @@ allOf:
       properties:
         compatible:
           contains:
-            const: qcom,adreno-gmu-wrapper
+            enum:
+              - qcom,adreno-gmu-wrapper
+              - qcom,adreno-rgmu
     then:
       properties:
         reg:
           items:
-            - description: GMU wrapper register space
+            - description: RGMU/GMU wrapper register space
         reg-names:
           items:
             - const: gmu

-- 
2.45.2