[PATCH v2 1/2] spi: dt-bindings: add SPI IPM v59 compatible for mt7987 and mt7989

[Tim Kuo <Tim.Kuo@mediatek.com>]

MTK mt7987 and mt7989 SPI hardware has been updated to IPM v59 SPI IP and
it differs from earlier IPM designs, most visibly in the tick delay field
of SPI_CMD_REG, so it needs its own fallback compatible rather than reusing
"mediatek,spi-ipm".

Signed-off-by: Tim Kuo <Tim.Kuo@mediatek.com>
---
v2: Add mt7987 and mt7989 real device compatible

 .../devicetree/bindings/spi/mediatek,spi-mt65xx.yaml         | 5 +++++
 1 file changed, 5 insertions(+)

diff --git a/Documentation/devicetree/bindings/spi/mediatek,spi-mt65xx.yaml b/Documentation/devicetree/bindings/spi/mediatek,spi-mt65xx.yaml
index 3bf3eb1f8728..d2c740572d85 100644
--- a/Documentation/devicetree/bindings/spi/mediatek,spi-mt65xx.yaml
+++ b/Documentation/devicetree/bindings/spi/mediatek,spi-mt65xx.yaml
@@ -39,6 +39,11 @@ properties:
               - mediatek,mt7988-spi-single
               - mediatek,mt8188-spi-ipm
           - const: mediatek,spi-ipm
+      - items:
+          - enum:
+              - mediatek,mt7987-spi
+              - mediatek,mt7989-spi
+          - const: mediatek,spi-ipm-v59
       - items:
           - enum:
               - mediatek,mt8196-spi

base-commit: 0d9d0dbf2fddcff5859d623e90ca73c4054276e1
-- 
2.45.2