linux-kernel - [PATCH v2 1/2] dt-bindings: drm/bridge: MHDP8546 bridge binding changes for HDCP

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Message-ID: <1614597746-4563-1-git-send-email-pthombar@cadence.com>
Date:   Mon, 1 Mar 2021 12:22:26 +0100
From:   Parshuram Thombare <pthombar@...ence.com>
To:     <robert.foss@...aro.org>, <robh+dt@...nel.org>,
        <laurent.pinchart@...asonboard.com>, <airlied@...ux.ie>,
        <daniel@...ll.ch>
CC:     <dri-devel@...ts.freedesktop.org>, <devicetree@...r.kernel.org>,
        <linux-kernel@...r.kernel.org>, <a.hajda@...sung.com>,
        <narmstrong@...libre.com>, <nikhil.nd@...com>, <kishon@...com>,
        <sjakhade@...ence.com>, <mparab@...ence.com>,
        Parshuram Thombare <pthombar@...ence.com>
Subject: [PATCH v2 1/2] dt-bindings: drm/bridge: MHDP8546 bridge binding changes for HDCP

Add binding changes for HDCP in the MHDP8546 DPI/DP bridge binding.
This binding is not used in any upstreamed DTS yet, so changing
index of property 'j721e-intg' should not affect anything.

Signed-off-by: Parshuram Thombare <pthombar@...ence.com>
---
 .../display/bridge/cdns,mhdp8546.yaml         | 29 ++++++++++++-------
 1 file changed, 19 insertions(+), 10 deletions(-)

diff --git a/Documentation/devicetree/bindings/display/bridge/cdns,mhdp8546.yaml b/Documentation/devicetree/bindings/display/bridge/cdns,mhdp8546.yaml
index 63427878715e..5fdadadaac16 100644
--- a/Documentation/devicetree/bindings/display/bridge/cdns,mhdp8546.yaml
+++ b/Documentation/devicetree/bindings/display/bridge/cdns,mhdp8546.yaml
@@ -17,21 +17,24 @@ properties:
       - ti,j721e-mhdp8546
 
   reg:
-    minItems: 1
-    maxItems: 2
+    minItems: 2
+    maxItems: 3
     items:
       - description:
           Register block of mhdptx apb registers up to PHY mapped area (AUX_CONFIG_P).
           The AUX and PMA registers are not part of this range, they are instead
           included in the associated PHY.
+      - description:
+          Register block of mhdptx sapb registers.
       - description:
           Register block for DSS_EDP0_INTG_CFG_VP registers in case of TI J7 SoCs.
 
   reg-names:
-    minItems: 1
-    maxItems: 2
+    minItems: 2
+    maxItems: 3
     items:
       - const: mhdptx
+      - const: mhdptx-sapb
       - const: j721e-intg
 
   clocks:
@@ -53,6 +56,11 @@ properties:
   power-domains:
     maxItems: 1
 
+  hdcp-config:
+    maxItems: 1
+    description:
+      HDCP version supported. Bit [0]:HDCP2.2 [1]:HDCP1.4.
+
   interrupts:
     maxItems: 1
 
@@ -98,15 +106,15 @@ allOf:
     then:
       properties:
         reg:
-          minItems: 2
+          minItems: 3
         reg-names:
-          minItems: 2
+          minItems: 3
     else:
       properties:
         reg:
-          maxItems: 1
+          maxItems: 2
         reg-names:
-          maxItems: 1
+          maxItems: 2
 
 required:
   - compatible
@@ -129,8 +137,9 @@ examples:
 
         mhdp: dp-bridge@...b000000 {
             compatible = "cdns,mhdp8546";
-            reg = <0xf0 0xfb000000 0x0 0x1000000>;
-            reg-names = "mhdptx";
+            reg = <0xf0 0xfb000000 0x0 0x1000000>,
+                  <0x0 0x4f48000 0x0 0x74>;
+            reg-names = "mhdptx", "mhdptx-sapb";
             clocks = <&mhdp_clock>;
             phys = <&dp_phy>;
             phy-names = "dpphy";
-- 
2.25.1