linux-kernel - [PATCH v2 05/66] dt-bindings: sun6i-a31-mipi-dphy: Add optional direction property

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: <20220205185429.2278860-6-paul.kocialkowski@bootlin.com>
Date:   Sat,  5 Feb 2022 19:53:28 +0100
From:   Paul Kocialkowski <paul.kocialkowski@...tlin.com>
To:     linux-media@...r.kernel.org, devicetree@...r.kernel.org,
        linux-arm-kernel@...ts.infradead.org, linux-sunxi@...ts.linux.dev,
        linux-kernel@...r.kernel.org, linux-phy@...ts.infradead.org,
        linux-clk@...r.kernel.org, linux-staging@...ts.linux.dev
Cc:     Yong Deng <yong.deng@...ewell.com>,
        Mauro Carvalho Chehab <mchehab@...nel.org>,
        Rob Herring <robh+dt@...nel.org>,
        Maxime Ripard <mripard@...nel.org>,
        Sakari Ailus <sakari.ailus@...ux.intel.com>,
        Hans Verkuil <hans.verkuil@...co.com>,
        Chen-Yu Tsai <wens@...e.org>,
        Jernej Skrabec <jernej.skrabec@...il.com>,
        Paul Kocialkowski <paul.kocialkowski@...tlin.com>,
        Greg Kroah-Hartman <gregkh@...uxfoundation.org>,
        Helen Koike <helen.koike@...labora.com>,
        Laurent Pinchart <laurent.pinchart@...asonboard.com>,
        Thomas Petazzoni <thomas.petazzoni@...tlin.com>
Subject: [PATCH v2 05/66] dt-bindings: sun6i-a31-mipi-dphy: Add optional direction property

The Allwinner A31 MIPI D-PHY block supports both tx and rx directions,
although each instance of the block is meant to be used in one
direction only. There will typically be one instance for MIPI DSI and
one for MIPI CSI-2 (it seems unlikely to ever see a shared instance).

Describe the direction with a new allwinner,direction property.
For backwards compatibility, the property is optional and tx mode
should be assumed by default.

Signed-off-by: Paul Kocialkowski <paul.kocialkowski@...tlin.com>
---
 .../bindings/phy/allwinner,sun6i-a31-mipi-dphy.yaml  | 12 ++++++++++++
 1 file changed, 12 insertions(+)

diff --git a/Documentation/devicetree/bindings/phy/allwinner,sun6i-a31-mipi-dphy.yaml b/Documentation/devicetree/bindings/phy/allwinner,sun6i-a31-mipi-dphy.yaml
index d0b541a461f3..22636c9fdab8 100644
--- a/Documentation/devicetree/bindings/phy/allwinner,sun6i-a31-mipi-dphy.yaml
+++ b/Documentation/devicetree/bindings/phy/allwinner,sun6i-a31-mipi-dphy.yaml
@@ -37,6 +37,18 @@ properties:
   resets:
     maxItems: 1
 
+  allwinner,direction:
+    $ref: '/schemas/types.yaml#/definitions/string'
+    description: |
+      Direction of the D-PHY:
+      - "rx" for receiving (e.g. when used with MIPI CSI-2);
+      - "tx" for transmitting (e.g. when used with MIPI DSI).
+
+    enum:
+      - tx
+      - rx
+    default: tx
+
 required:
   - "#phy-cells"
   - compatible
-- 
2.34.1