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Date:   Thu, 21 Jul 2022 17:31:50 +0200
From:   Krzysztof Kozlowski <krzysztof.kozlowski@...aro.org>
To:     Thierry Reding <thierry.reding@...il.com>,
        Sam Ravnborg <sam@...nborg.org>,
        David Airlie <airlied@...ux.ie>,
        Daniel Vetter <daniel@...ll.ch>,
        Rob Herring <robh+dt@...nel.org>,
        Krzysztof Kozlowski <krzysztof.kozlowski+dt@...aro.org>,
        Linus Walleij <linus.walleij@...aro.org>,
        Markuss Broks <markuss.broks@...il.com>,
        Lars-Peter Clausen <lars@...afoo.de>,
        Michael Hennerich <Michael.Hennerich@...log.com>,
        Jonathan Cameron <jic23@...nel.org>,
        Alexandru Tachici <alexandru.tachici@...log.com>,
        Marcelo Schmitt <marcelo.schmitt1@...il.com>,
        Tomislav Denis <tomislav.denis@....com>,
        Cosmin Tanislav <cosmin.tanislav@...log.com>,
        Nishant Malpani <nish.malpani25@...il.com>,
        Dragos Bogdan <dragos.bogdan@...log.com>,
        Nuno Sa <nuno.sa@...log.com>,
        Jean-Baptiste Maneyrol <jmaneyrol@...ensense.com>,
        "David S. Miller" <davem@...emloft.net>,
        Eric Dumazet <edumazet@...gle.com>,
        Jakub Kicinski <kuba@...nel.org>,
        Paolo Abeni <pabeni@...hat.com>,
        Mark Brown <broonie@...nel.org>,
        Tomi Valkeinen <tomi.valkeinen@...com>,
        Andrzej Hajda <andrzej.hajda@...el.com>,
        Maxime Ripard <mripard@...nel.org>,
        Marek Belisko <marek@...delico.com>,
        "H. Nikolaus Schaller" <hns@...delico.com>,
        Christian Eggers <ceggers@...i.de>,
        Beniamin Bia <beniamin.bia@...log.com>,
        Stefan Popa <stefan.popa@...log.com>,
        Oskar Andero <oskar.andero@...il.com>,
        MÃ¥rten Lindahl <martenli@...s.com>,
        Dan Murphy <dmurphy@...com>, Sean Nyekjaer <sean@...nix.com>,
        Cristian Pop <cristian.pop@...log.com>,
        Lukas Wunner <lukas@...ner.de>,
        Matt Ranostay <matt.ranostay@...sulko.com>,
        Matheus Tavares <matheus.bernardino@....br>,
        Sankar Velliangiri <navin@...umiz.com>,
        Lubomir Rintel <lkundrak@...sk>,
        Stefan Wahren <stefan.wahren@...tech.com>,
        Pratyush Yadav <p.yadav@...com>,
        dri-devel@...ts.freedesktop.org, devicetree@...r.kernel.org,
        linux-kernel@...r.kernel.org, linux-iio@...r.kernel.org,
        linux-fbdev@...r.kernel.org, netdev@...r.kernel.org,
        linux-spi@...r.kernel.org
Cc:     Krzysztof Kozlowski <krzysztof.kozlowski@...aro.org>
Subject: [PATCH 1/6] dt-bindings: panel: explicitly list SPI CPHA and CPOL

The spi-cpha and spi-cpol properties are device specific and should be
accepted only if device really needs them.  Explicitly list them in
device bindings in preparation of their removal from generic
spi-peripheral-props.yaml schema.

Signed-off-by: Krzysztof Kozlowski <krzysztof.kozlowski@...aro.org>
---
 .../bindings/display/panel/lgphilips,lb035q02.yaml   | 10 ++++++++++
 .../bindings/display/panel/samsung,ld9040.yaml       | 10 ++++++++++
 .../bindings/display/panel/samsung,lms380kf01.yaml   | 12 +++++++++---
 .../bindings/display/panel/samsung,lms397kf04.yaml   | 12 +++++++++---
 .../bindings/display/panel/samsung,s6d27a1.yaml      | 12 +++++++++---
 .../bindings/display/panel/sitronix,st7789v.yaml     | 10 ++++++++++
 .../devicetree/bindings/display/panel/tpo,td.yaml    | 10 ++++++++++
 7 files changed, 67 insertions(+), 9 deletions(-)

diff --git a/Documentation/devicetree/bindings/display/panel/lgphilips,lb035q02.yaml b/Documentation/devicetree/bindings/display/panel/lgphilips,lb035q02.yaml
index 5e4e0e552c2f..0bd7bbad5b94 100644
--- a/Documentation/devicetree/bindings/display/panel/lgphilips,lb035q02.yaml
+++ b/Documentation/devicetree/bindings/display/panel/lgphilips,lb035q02.yaml
@@ -21,6 +21,16 @@ properties:
   enable-gpios: true
   port: true
 
+  spi-cpha:
+    type: boolean
+    description:
+      The device requires shifted clock phase (CPHA) mode.
+
+  spi-cpol:
+    type: boolean
+    description:
+      The device requires inverse clock polarity (CPOL) mode.
+
 required:
   - compatible
   - enable-gpios
diff --git a/Documentation/devicetree/bindings/display/panel/samsung,ld9040.yaml b/Documentation/devicetree/bindings/display/panel/samsung,ld9040.yaml
index d525165d6d63..ee6a61549916 100644
--- a/Documentation/devicetree/bindings/display/panel/samsung,ld9040.yaml
+++ b/Documentation/devicetree/bindings/display/panel/samsung,ld9040.yaml
@@ -42,6 +42,16 @@ properties:
   panel-height-mm:
     description: physical panel height [mm]
 
+  spi-cpha:
+    type: boolean
+    description:
+      The device requires shifted clock phase (CPHA) mode.
+
+  spi-cpol:
+    type: boolean
+    description:
+      The device requires inverse clock polarity (CPOL) mode.
+
 required:
   - compatible
   - reg
diff --git a/Documentation/devicetree/bindings/display/panel/samsung,lms380kf01.yaml b/Documentation/devicetree/bindings/display/panel/samsung,lms380kf01.yaml
index 251f0c7115aa..7f010cb4aa20 100644
--- a/Documentation/devicetree/bindings/display/panel/samsung,lms380kf01.yaml
+++ b/Documentation/devicetree/bindings/display/panel/samsung,lms380kf01.yaml
@@ -43,9 +43,15 @@ properties:
 
   backlight: true
 
-  spi-cpha: true
-
-  spi-cpol: true
+  spi-cpha:
+    type: boolean
+    description:
+      The device requires shifted clock phase (CPHA) mode.
+
+  spi-cpol:
+    type: boolean
+    description:
+      The device requires inverse clock polarity (CPOL) mode.
 
   spi-max-frequency:
     maximum: 1200000
diff --git a/Documentation/devicetree/bindings/display/panel/samsung,lms397kf04.yaml b/Documentation/devicetree/bindings/display/panel/samsung,lms397kf04.yaml
index cd62968426fb..794da8b45896 100644
--- a/Documentation/devicetree/bindings/display/panel/samsung,lms397kf04.yaml
+++ b/Documentation/devicetree/bindings/display/panel/samsung,lms397kf04.yaml
@@ -33,9 +33,15 @@ properties:
 
   backlight: true
 
-  spi-cpha: true
-
-  spi-cpol: true
+  spi-cpha:
+    type: boolean
+    description:
+      The device requires shifted clock phase (CPHA) mode.
+
+  spi-cpol:
+    type: boolean
+    description:
+      The device requires inverse clock polarity (CPOL) mode.
 
   spi-max-frequency:
     description: inherited as a SPI client node, the datasheet specifies
diff --git a/Documentation/devicetree/bindings/display/panel/samsung,s6d27a1.yaml b/Documentation/devicetree/bindings/display/panel/samsung,s6d27a1.yaml
index 26e3c820a2f7..468111b1a1b4 100644
--- a/Documentation/devicetree/bindings/display/panel/samsung,s6d27a1.yaml
+++ b/Documentation/devicetree/bindings/display/panel/samsung,s6d27a1.yaml
@@ -41,9 +41,15 @@ properties:
 
   backlight: true
 
-  spi-cpha: true
-
-  spi-cpol: true
+  spi-cpha:
+    type: boolean
+    description:
+      The device requires shifted clock phase (CPHA) mode.
+
+  spi-cpol:
+    type: boolean
+    description:
+      The device requires inverse clock polarity (CPOL) mode.
 
   spi-max-frequency:
     maximum: 1200000
diff --git a/Documentation/devicetree/bindings/display/panel/sitronix,st7789v.yaml b/Documentation/devicetree/bindings/display/panel/sitronix,st7789v.yaml
index 9e1d707c2ace..0eea7de51689 100644
--- a/Documentation/devicetree/bindings/display/panel/sitronix,st7789v.yaml
+++ b/Documentation/devicetree/bindings/display/panel/sitronix,st7789v.yaml
@@ -23,6 +23,16 @@ properties:
   backlight: true
   port: true
 
+  spi-cpha:
+    type: boolean
+    description:
+      The device requires shifted clock phase (CPHA) mode.
+
+  spi-cpol:
+    type: boolean
+    description:
+      The device requires inverse clock polarity (CPOL) mode.
+
 required:
   - compatible
   - reg
diff --git a/Documentation/devicetree/bindings/display/panel/tpo,td.yaml b/Documentation/devicetree/bindings/display/panel/tpo,td.yaml
index f902a9d74141..9b0e8659d6bd 100644
--- a/Documentation/devicetree/bindings/display/panel/tpo,td.yaml
+++ b/Documentation/devicetree/bindings/display/panel/tpo,td.yaml
@@ -28,6 +28,16 @@ properties:
   backlight: true
   port: true
 
+  spi-cpha:
+    type: boolean
+    description:
+      The device requires shifted clock phase (CPHA) mode.
+
+  spi-cpol:
+    type: boolean
+    description:
+      The device requires inverse clock polarity (CPOL) mode.
+
 required:
   - compatible
   - port
-- 
2.34.1

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