linux-kernel - [PATCH v2 3/3] dt-bindings: display: panel: mipi-dbi-spi: Add io-supply

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Message-Id: <20221201160245.2093816-4-otto.pflueger@abscue.de>
Date:   Thu,  1 Dec 2022 17:02:45 +0100
From:   Otto Pflüger <otto.pflueger@...cue.de>
To:     Noralf Trønnes <noralf@...nnes.org>,
        Thierry Reding <thierry.reding@...il.com>,
        Sam Ravnborg <sam@...nborg.org>,
        David Airlie <airlied@...il.com>,
        Daniel Vetter <daniel@...ll.ch>,
        Rob Herring <robh+dt@...nel.org>,
        Krzysztof Kozlowski <krzysztof.kozlowski+dt@...aro.org>,
        Maarten Lankhorst <maarten.lankhorst@...ux.intel.com>,
        Maxime Ripard <mripard@...nel.org>,
        Thomas Zimmermann <tzimmermann@...e.de>,
        dri-devel@...ts.freedesktop.org, devicetree@...r.kernel.org,
        linux-kernel@...r.kernel.org
Cc:     Otto Pflüger <otto.pflueger@...cue.de>
Subject: [PATCH v2 3/3] dt-bindings: display: panel: mipi-dbi-spi: Add io-supply

Add documentation for the new io-supply property, which specifies the
regulator for the I/O voltage supply on platforms where the panel
panel power and I/O supplies are separate.

Signed-off-by: Otto Pflüger <otto.pflueger@...cue.de>
---
 .../bindings/display/panel/panel-mipi-dbi-spi.yaml        | 8 +++++++-
 1 file changed, 7 insertions(+), 1 deletion(-)

diff --git a/Documentation/devicetree/bindings/display/panel/panel-mipi-dbi-spi.yaml b/Documentation/devicetree/bindings/display/panel/panel-mipi-dbi-spi.yaml
index c2df8d28aaf5..9b701df5e9d2 100644
--- a/Documentation/devicetree/bindings/display/panel/panel-mipi-dbi-spi.yaml
+++ b/Documentation/devicetree/bindings/display/panel/panel-mipi-dbi-spi.yaml
@@ -22,8 +22,9 @@ description: |
   The standard defines the following interface signals for type C:
   - Power:
     - Vdd: Power supply for display module
+      Called power-supply in this binding.
     - Vddi: Logic level supply for interface signals
-    Combined into one in this binding called: power-supply
+      Called io-supply in this binding.
   - Interface:
     - CSx: Chip select
     - SCL: Serial clock
@@ -80,6 +81,11 @@ properties:
       Controller data/command selection (D/CX) in 4-line SPI mode.
       If not set, the controller is in 3-line SPI mode.
 
+  io-supply:
+    description: |
+      Logic level supply for interface signals (Vddi).
+      No need to set if this is the same as power-supply.
+
 required:
   - compatible
   - reg
-- 
2.30.2