Independent bindings can be SPI slaves which for example is
the case for several panel bindings.
Move SPI slave properties to spi-slave.yaml so the independent
SPI slave bindings can include spi-slave.yaml rather than
duplicating the properties.
Signed-off-by: Sam Ravnborg <sam@xxxxxxxxxxxx>
Cc: Maxime Ripard <maxime.ripard@xxxxxxxxxxx>
Cc: Rob Herring <robh@xxxxxxxxxx>
Cc: Mark Brown <broonie@xxxxxxxxxx>
Cc: linux-spi@xxxxxxxxxxxxxxx
---
.../bindings/spi/spi-controller.yaml | 63 +-------------
.../devicetree/bindings/spi/spi-slave.yaml | 83 +++++++++++++++++++
2 files changed, 86 insertions(+), 60 deletions(-)
create mode 100644 Documentation/devicetree/bindings/spi/spi-slave.yaml
diff --git a/Documentation/devicetree/bindings/spi/spi-controller.yaml b/Documentation/devicetree/bindings/spi/spi-controller.yaml
index 1e0ca6ccf64b..99531c8d10dd 100644
--- a/Documentation/devicetree/bindings/spi/spi-controller.yaml
+++ b/Documentation/devicetree/bindings/spi/spi-controller.yaml
@@ -67,71 +67,14 @@ patternProperties:
"^.*@[0-9a-f]+$":
type: object
+ allOf:
+ - $ref: spi-slave.yaml#
+
properties:
compatible:
description:
Compatible of the SPI device.
- reg:
- minimum: 0
- maximum: 256
- description:
- Chip select used by the device.
-
- spi-3wire:
- $ref: /schemas/types.yaml#/definitions/flag
- description:
- The device requires 3-wire mode.
-
- spi-cpha:
- $ref: /schemas/types.yaml#/definitions/flag
- description:
- The device requires shifted clock phase (CPHA) mode.
-
- spi-cpol:
- $ref: /schemas/types.yaml#/definitions/flag
- description:
- The device requires inverse clock polarity (CPOL) mode.
-
- spi-cs-high:
- $ref: /schemas/types.yaml#/definitions/flag
- description:
- The device requires the chip select active high.
-
- spi-lsb-first:
- $ref: /schemas/types.yaml#/definitions/flag
- description:
- The device requires the LSB first mode.
-
- spi-max-frequency:
- $ref: /schemas/types.yaml#/definitions/uint32
- description:
- Maximum SPI clocking speed of the device in Hz.
-
- spi-rx-bus-width:
- allOf:
- - $ref: /schemas/types.yaml#/definitions/uint32
- - enum: [ 1, 2, 4, 8 ]
- - default: 1
- description:
- Bus width to the SPI bus used for MISO.
-
- spi-rx-delay-us:
- description:
- Delay, in microseconds, after a read transfer.
-
- spi-tx-bus-width:
- allOf:
- - $ref: /schemas/types.yaml#/definitions/uint32
- - enum: [ 1, 2, 4, 8 ]
- - default: 1
- description:
- Bus width to the SPI bus used for MOSI.
-
- spi-tx-delay-us:
- description:
- Delay, in microseconds, after a write transfer.
-
required:
- compatible
- reg
diff --git a/Documentation/devicetree/bindings/spi/spi-slave.yaml b/Documentation/devicetree/bindings/spi/spi-slave.yaml
new file mode 100644
index 000000000000..fa50d9dfab41
--- /dev/null
+++ b/Documentation/devicetree/bindings/spi/spi-slave.yaml
@@ -0,0 +1,83 @@
+# SPDX-License-Identifier: GPL-2.0
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/spi/spi-slave.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: SPI slave generic binding
+
+maintainers:
+ - Mark Brown <broonie@xxxxxxxxxx>
+
+description: |
+ This document defines device tree properties common to SPI slaves.
+ It doesn't constitue a device tree binding specification by
+ itself but is meant to be referenced by device tree bindings.
+
+ When referenced from device tree bindings the properties defined in this
+ document are defined as follows. The device tree bindings are responsible
+ for defining whether each property is required or optional.
+
+properties:
+
+ reg:
+ minimum: 0
+ maximum: 256
+ description:
+ Chip select used by the device.
+
+ spi-3wire:
+ $ref: /schemas/types.yaml#/definitions/flag
+ description:
+ The device requires 3-wire mode.
+
+ spi-cpha:
+ $ref: /schemas/types.yaml#/definitions/flag
+ description:
+ The device requires shifted clock phase (CPHA) mode.
+
+ spi-cpol:
+ $ref: /schemas/types.yaml#/definitions/flag
+ description:
+ The device requires inverse clock polarity (CPOL) mode.
+
+ spi-cs-high:
+ $ref: /schemas/types.yaml#/definitions/flag
+ description:
+ The device requires the chip select active high.
+
+ spi-lsb-first:
+ $ref: /schemas/types.yaml#/definitions/flag
+ description:
+ The device requires the LSB first mode.
+
+ spi-max-frequency:
+ $ref: /schemas/types.yaml#/definitions/uint32
+ description:
+ Maximum SPI clocking speed of the device in Hz.
+
+ spi-rx-bus-width:
+ allOf:
+ - $ref: /schemas/types.yaml#/definitions/uint32
+ - enum: [ 1, 2, 4, 8 ]
+ - default: 1
+ description:
+ Bus width to the SPI bus used for MISO.
+
+ spi-rx-delay-us:
+ description:
+ Delay, in microseconds, after a read transfer.
+
+ spi-tx-bus-width:
+ allOf:
+ - $ref: /schemas/types.yaml#/definitions/uint32
+ - enum: [ 1, 2, 4, 8 ]
+ - default: 1
+ description:
+ Bus width to the SPI bus used for MOSI.
+
+ spi-tx-delay-us:
+ description:
+ Delay, in microseconds, after a write transfer.
+
+...
--
2.20.1
