linux-kernel - [PATCH 2/9] dt-bindings: display/msm: describe SFPB device

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Message-Id: <20250317-fix-nexus-4-v1-2-655c52e2ad97@oss.qualcomm.com>
Date: Mon, 17 Mar 2025 19:44:37 +0200
From: Dmitry Baryshkov <dmitry.baryshkov@....qualcomm.com>
To: Bjorn Andersson <andersson@...nel.org>,
        Konrad Dybcio <konradybcio@...nel.org>, Rob Herring <robh@...nel.org>,
        Krzysztof Kozlowski <krzk+dt@...nel.org>,
        Conor Dooley <conor+dt@...nel.org>, Lee Jones <lee@...nel.org>,
        Neil Armstrong <neil.armstrong@...aro.org>,
        Rob Clark <robdclark@...il.com>,
        Abhinav Kumar <quic_abhinavk@...cinc.com>,
        Dmitry Baryshkov <dmitry.baryshkov@...aro.org>,
        Sean Paul <sean@...rly.run>,
        Marijn Suijten <marijn.suijten@...ainline.org>,
        David Airlie <airlied@...il.com>, Simona Vetter <simona@...ll.ch>,
        Maarten Lankhorst <maarten.lankhorst@...ux.intel.com>,
        Maxime Ripard <mripard@...nel.org>,
        Thomas Zimmermann <tzimmermann@...e.de>,
        Suzuki K Poulose <suzuki.poulose@....com>,
        Mike Leach <mike.leach@...aro.org>,
        James Clark <james.clark@...aro.org>,
        Mathieu Poirier <mathieu.poirier@...aro.org>,
        Leo Yan <leo.yan@...ux.dev>, Kumar Gala <galak@...eaurora.org>,
        Andy Gross <agross@...eaurora.org>,
        "Ivan T. Ivanov" <ivan.ivanov@...aro.org>,
        Andy Gross <andy.gross@...aro.org>, Georgi Djakov <djakov@...nel.org>,
        David Heidelberg <david@...t.cz>
Cc: linux-arm-msm@...r.kernel.org, devicetree@...r.kernel.org,
        linux-kernel@...r.kernel.org, dri-devel@...ts.freedesktop.org,
        freedreno@...ts.freedesktop.org, coresight@...ts.linaro.org,
        linux-arm-kernel@...ts.infradead.org
Subject: [PATCH 2/9] dt-bindings: display/msm: describe SFPB device

Add DT schema for the MultiMedia SubSystem System FPB device, which
provides several registers to control interface between multimedia
devices (primarily display) and system busses.

Signed-off-by: Dmitry Baryshkov <dmitry.baryshkov@....qualcomm.com>
---
 .../devicetree/bindings/display/msm/qcom,sfpb.yaml | 39 ++++++++++++++++++++++
 1 file changed, 39 insertions(+)

diff --git a/Documentation/devicetree/bindings/display/msm/qcom,sfpb.yaml b/Documentation/devicetree/bindings/display/msm/qcom,sfpb.yaml
new file mode 100644
index 0000000000000000000000000000000000000000..7ca105c97edd2f305527c58ae89b9b0cf22d3c8c
--- /dev/null
+++ b/Documentation/devicetree/bindings/display/msm/qcom,sfpb.yaml
@@ -0,0 +1,39 @@
+# SPDX-License-Identifier: GPL-2.0-only OR BSD-2-Clause
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/display/msm/qcom,sfpb.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: Qualcomm MultiMedia SubSystem System FPB
+
+maintainers:
+  - Dmitry Baryshkov <dmitry.baryshkov@....qualcomm.com>
+  - Rob Clark <robdclark@...il.com>
+
+description:
+  The SFPB provides several registers controlling the multimedia attachment to
+  the system busses.
+
+properties:
+  compatible:
+    items:
+      - const: qcom,apq8064-mmss-sfpb
+      - const: syscon
+
+  reg:
+    items:
+      - description: SFPB register block
+
+required:
+  - compatible
+  - reg
+
+unevaluatedProperties: false
+
+examples:
+  - |
+    syscon@...0000 {
+        compatible = "qcom,apq8064-mmss-sfpb", "syscon";
+        reg = <0x5700000 0x70>;
+    };
+...

-- 
2.39.5