[PATCH] spi/panel: dt-bindings: drop 3-wire from common properties

From: Krzysztof Kozlowski
Date: Wed Aug 10 2022 - 09:13:23 EST


The spi-3wire property is device specific and should be accepted only if
device really needs them. Drop it from common spi-peripheral-props.yaml
schema, mention in few panel drivers which use it and include instead in
the SPI controller bindings. The controller bindings will provide
spi-3wire type validation and one place for description. Each device
schema must list the property if it is applicable.

The Samsung S6E63M0 panel uses also spi-cpha/cpol properties on at least
one board (ste-ux500-samsung-janice/dts), so add also these to the
panel's bindings.

Signed-off-by: Krzysztof Kozlowski <krzysztof.kozlowski@xxxxxxxxxx>
---
.../bindings/display/panel/kingdisplay,kd035g6-54nt.yaml | 2 ++
.../bindings/display/panel/leadtek,ltk035c5444t.yaml | 2 ++
.../devicetree/bindings/display/panel/samsung,s6e63m0.yaml | 4 ++++
Documentation/devicetree/bindings/spi/spi-controller.yaml | 5 +++++
.../devicetree/bindings/spi/spi-peripheral-props.yaml | 5 -----
5 files changed, 13 insertions(+), 5 deletions(-)

diff --git a/Documentation/devicetree/bindings/display/panel/kingdisplay,kd035g6-54nt.yaml b/Documentation/devicetree/bindings/display/panel/kingdisplay,kd035g6-54nt.yaml
index 2a2756d19681..b4be9bd8ddde 100644
--- a/Documentation/devicetree/bindings/display/panel/kingdisplay,kd035g6-54nt.yaml
+++ b/Documentation/devicetree/bindings/display/panel/kingdisplay,kd035g6-54nt.yaml
@@ -23,6 +23,8 @@ properties:
reg: true
reset-gpios: true

+ spi-3wire: true
+
required:
- compatible
- power-supply
diff --git a/Documentation/devicetree/bindings/display/panel/leadtek,ltk035c5444t.yaml b/Documentation/devicetree/bindings/display/panel/leadtek,ltk035c5444t.yaml
index 817a9bed7d5a..ebdca5f5a001 100644
--- a/Documentation/devicetree/bindings/display/panel/leadtek,ltk035c5444t.yaml
+++ b/Documentation/devicetree/bindings/display/panel/leadtek,ltk035c5444t.yaml
@@ -24,6 +24,8 @@ properties:
reg: true
reset-gpios: true

+ spi-3wire: true
+
required:
- compatible
- power-supply
diff --git a/Documentation/devicetree/bindings/display/panel/samsung,s6e63m0.yaml b/Documentation/devicetree/bindings/display/panel/samsung,s6e63m0.yaml
index 940f7f88526f..6f1fc7469f07 100644
--- a/Documentation/devicetree/bindings/display/panel/samsung,s6e63m0.yaml
+++ b/Documentation/devicetree/bindings/display/panel/samsung,s6e63m0.yaml
@@ -24,6 +24,10 @@ properties:
default-brightness: true
max-brightness: true

+ spi-3wire: true
+ spi-cpha: true
+ spi-cpol: true
+
vdd3-supply:
description: VDD regulator

diff --git a/Documentation/devicetree/bindings/spi/spi-controller.yaml b/Documentation/devicetree/bindings/spi/spi-controller.yaml
index 655713fba7e2..01042a7f382e 100644
--- a/Documentation/devicetree/bindings/spi/spi-controller.yaml
+++ b/Documentation/devicetree/bindings/spi/spi-controller.yaml
@@ -96,6 +96,11 @@ patternProperties:
$ref: spi-peripheral-props.yaml

properties:
+ spi-3wire:
+ $ref: /schemas/types.yaml#/definitions/flag
+ description:
+ The device requires 3-wire mode.
+
spi-cpha:
$ref: /schemas/types.yaml#/definitions/flag
description:
diff --git a/Documentation/devicetree/bindings/spi/spi-peripheral-props.yaml b/Documentation/devicetree/bindings/spi/spi-peripheral-props.yaml
index ce048e782e80..4beeb9e17694 100644
--- a/Documentation/devicetree/bindings/spi/spi-peripheral-props.yaml
+++ b/Documentation/devicetree/bindings/spi/spi-peripheral-props.yaml
@@ -29,11 +29,6 @@ properties:
description:
Chip select used by the device.

- spi-3wire:
- $ref: /schemas/types.yaml#/definitions/flag
- description:
- The device requires 3-wire mode.
-
spi-cs-high:
$ref: /schemas/types.yaml#/definitions/flag
description:
--
2.34.1