[6.1.y-cip,3/9] dt-bindings: i2c: renesas,riic: Document R9A09G057 support

Commit Message

Tommaso Merciai April 4, 2025, 7:38 a.m. UTC

From: Lad Prabhakar <[e-mail]>

commit c1f39c62eb09fa2e692a9377295ecbd0740c0914 upstream.

Document support for the I2C Bus Interface (RIIC) available in the
Renesas RZ/V2H(P) (R9A09G057) SoC.

The RIIC interface in the Renesas RZ/V2H(P) differs from RZ/A in a
couple of ways:
- Register offsets for the RZ/V2H(P) SoC differ from those of the
  RZ/A SoC.
- RZ/V2H register access is limited to 8-bit, whereas RZ/A supports
  8/16/32-bit.
- RZ/V2H has bit differences in the slave address register.

To accommodate these differences, a new compatible string
"renesas,riic-r9a09g057" is added.

Signed-off-by: Lad Prabhakar <[e-mail]>
Reviewed-by: Geert Uytterhoeven <[e-mail]>
Acked-by: Rob Herring <[e-mail]>
Reviewed-by: Wolfram Sang <[e-mail]>
Signed-off-by: Andi Shyti <[e-mail]>
Signed-off-by: Tommaso Merciai <[e-mail]>
---
 .../devicetree/bindings/i2c/renesas,riic.yaml | 19 +++++++++++--------
 1 file changed, 11 insertions(+), 8 deletions(-)

Patch

diff --git a/Documentation/devicetree/bindings/i2c/renesas,riic.yaml b/Documentation/devicetree/bindings/i2c/renesas,riic.yaml
index 2291a7cd619be..91ecf17b7a81a 100644
--- a/Documentation/devicetree/bindings/i2c/renesas,riic.yaml
+++ b/Documentation/devicetree/bindings/i2c/renesas,riic.yaml
@@ -15,14 +15,17 @@  allOf:
 
 properties:
   compatible:
-    items:
-      - enum:
-          - renesas,riic-r7s72100   # RZ/A1H
-          - renesas,riic-r7s9210    # RZ/A2M
-          - renesas,riic-r9a07g043  # RZ/G2UL and RZ/Five
-          - renesas,riic-r9a07g044  # RZ/G2{L,LC}
-          - renesas,riic-r9a07g054  # RZ/V2L
-      - const: renesas,riic-rz      # RZ/A or RZ/G2L
+    oneOf:
+      - items:
+          - enum:
+              - renesas,riic-r7s72100   # RZ/A1H
+              - renesas,riic-r7s9210    # RZ/A2M
+              - renesas,riic-r9a07g043  # RZ/G2UL and RZ/Five
+              - renesas,riic-r9a07g044  # RZ/G2{L,LC}
+              - renesas,riic-r9a07g054  # RZ/V2L
+          - const: renesas,riic-rz      # RZ/A or RZ/G2L
+
+      - const: renesas,riic-r9a09g057   # RZ/V2H(P)
 
   reg:
     maxItems: 1