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[PATCHv4,2/6] spi: dt-bindings: support devices with multiple chipselects

Message ID 20210609151235.48964-3-sebastian.reichel@collabora.com (mailing list archive)
State New
Headers show
Series GE Healthcare PPD firmware upgrade driver for ACHC | expand

Commit Message

Sebastian Reichel June 9, 2021, 3:12 p.m. UTC
Add binding support for devices, that have more than one
chip select. A typical example are SPI connected microcontroller,
that can also be programmed over SPI like NXP Kinetis or
chips with a configuration and a data chip select, such as
Microchip's MRF89XA transceiver.

Reviewed-by: Rob Herring <robh@kernel.org>
Signed-off-by: Sebastian Reichel <sebastian.reichel@collabora.com>
---
 Documentation/devicetree/bindings/spi/spi-controller.yaml | 7 +++++--
 1 file changed, 5 insertions(+), 2 deletions(-)
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Patch

diff --git a/Documentation/devicetree/bindings/spi/spi-controller.yaml b/Documentation/devicetree/bindings/spi/spi-controller.yaml
index 0477396e4945..faef4f6f55b8 100644
--- a/Documentation/devicetree/bindings/spi/spi-controller.yaml
+++ b/Documentation/devicetree/bindings/spi/spi-controller.yaml
@@ -114,8 +114,11 @@  patternProperties:
           Compatible of the SPI device.
 
       reg:
-        minimum: 0
-        maximum: 256
+        minItems: 1
+        maxItems: 256
+        items:
+          minimum: 0
+          maximum: 256
         description:
           Chip select used by the device.