commit c271aa1f73515bcb35f977f30825832d41a2f504 upstream.

SPI Multi I/O Bus Controller on RZ/G2L SoC is almost identical to
the RPC-IF interface found on R-Car Gen3 SoC's.

This patch adds a new compatible string to identify the RZ/G2L family
so that the timing values on RZ/G2L can be adjusted.

Signed-off-by: Lad Prabhakar <prabhakar.mahadev-lad.rj@...>
Reviewed-by: Biju Das <biju.das.jz@...>
Reviewed-by: Rob Herring <robh@...>
Reviewed-by: Geert Uytterhoeven <geert+renesas@...>
Link: https://lore.kernel.org/r/20211025205631.21151-2-prabhakar.mahadev-lad.rj@bp.renesas.com
Signed-off-by: Krzysztof Kozlowski <krzysztof.kozlowski@...>
[PL: Manually applied the changes.]
Signed-off-by: Lad Prabhakar <prabhakar.mahadev-lad.rj@...>
---
.../memory-controllers/renesas,rpc-if.yaml | 43 ++++++++++++++-----
1 file changed, 33 insertions(+), 10 deletions(-)

diff --git a/Documentation/devicetree/bindings/memory-controllers/renesas,rpc-if.yaml b/Documentation/devicetree/bindings/memory-controllers/renesas,rpc-if.yaml
index ebc1052a5e9b..e733b01abe13 100644
--- a/Documentation/devicetree/bindings/memory-controllers/renesas,rpc-if.yaml
+++ b/Documentation/devicetree/bindings/memory-controllers/renesas,rpc-if.yaml
@@ -24,12 +24,18 @@ allOf:

properties:
compatible:
- items:
- - enum:
- - renesas,r8a77970-rpc-if # R-Car V3M
- - renesas,r8a77980-rpc-if # R-Car V3H
- - renesas,r8a77995-rpc-if # R-Car D3
- - const: renesas,rcar-gen3-rpc-if # a generic R-Car gen3 device
+ oneOf:
+ - items:
+ - enum:
+ - renesas,r8a77970-rpc-if # R-Car V3M
+ - renesas,r8a77980-rpc-if # R-Car V3H
+ - renesas,r8a77995-rpc-if # R-Car D3
+ - const: renesas,rcar-gen3-rpc-if # a generic R-Car gen3 or RZ/G2{E,H,M,N} device
+
+ - items:
+ - enum:
+ - renesas,r9a07g044-rpc-if # RZ/G2{L,LC}
+ - const: renesas,rzg2l-rpc-if # RZ/G2L family

reg:
items:
@@ -43,8 +49,7 @@ properties:
- const: dirmap
- const: wbuf

- clocks:
- maxItems: 1
+ clocks: true

power-domains:
maxItems: 1
@@ -62,8 +67,6 @@ patternProperties:
- cfi-flash
- jedec,spi-nor

-unevaluatedProperties: false
-
required:
- compatible
- reg
@@ -74,6 +77,26 @@ required:
- '#address-cells'
- '#size-cells'

+if:
+ properties:
+ compatible:
+ contains:
+ enum:
+ - renesas,rzg2l-rpc-if
+then:
+ properties:
+ clocks:
+ items:
+ - description: SPI Multi IO Register access clock (SPI_CLK2)
+ - description: SPI Multi IO Main clock (SPI_CLK).
+
+else:
+ properties:
+ clocks:
+ maxItems: 1
+
+unevaluatedProperties: false
+
examples:
- |
#include <dt-bindings/clock/renesas-cpg-mssr.h>
--
2.17.1