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Date: Thu, 7 Mar 2024 11:47:31 +0000
From: Prabhakar <prabhakar.csengg@...il.com>
To: Geert Uytterhoeven <geert+renesas@...der.be>,
Greg Kroah-Hartman <gregkh@...uxfoundation.org>,
Jiri Slaby <jirislaby@...nel.org>,
Rob Herring <robh+dt@...nel.org>,
Krzysztof Kozlowski <krzysztof.kozlowski+dt@...aro.org>,
Conor Dooley <conor+dt@...nel.org>,
Magnus Damm <magnus.damm@...il.com>
Cc: linux-kernel@...r.kernel.org,
linux-serial@...r.kernel.org,
devicetree@...r.kernel.org,
linux-renesas-soc@...r.kernel.org,
Prabhakar <prabhakar.csengg@...il.com>,
Fabrizio Castro <fabrizio.castro.jz@...esas.com>,
Lad Prabhakar <prabhakar.mahadev-lad.rj@...renesas.com>
Subject: [PATCH v2] dt-bindings: serial: renesas,scif: Document R9A09G057 support
From: Lad Prabhakar <prabhakar.mahadev-lad.rj@...renesas.com>
Document support for the Serial Communication Interface with FIFO (SCIF)
available in the Renesas RZ/V2H(P) (R9A09G057) SoC. The SCIF interface in
the Renesas RZ/V2H(P) is similar to that available in the RZ/G2L
(R9A07G044) SoC, with the only difference being that the RZ/V2H(P) SoC has
three additional interrupts: one for Tx end/Rx ready and the other two for
Rx and Tx buffer full, which are edge-triggered.
No driver changes are required as generic compatible string
"renesas,scif-r9a07g044" will be used as a fallback on RZ/V2H(P) SoC.
Signed-off-by: Lad Prabhakar <prabhakar.mahadev-lad.rj@...renesas.com>
Reviewed-by: Fabrizio Castro <fabrizio.castro.jz@...esas.com>
---
v1->v2
* Added validation to check interrupts and interrupt-names count
Note, this patch applies on top of series [0].
[0] https://patchwork.ozlabs.org/project/devicetree-bindings/cover/20240307114217.34784-1-prabhakar.mahadev-lad.rj@bp.renesas.com/
---
.../bindings/serial/renesas,scif.yaml | 31 ++++++++++++++++---
1 file changed, 27 insertions(+), 4 deletions(-)
diff --git a/Documentation/devicetree/bindings/serial/renesas,scif.yaml b/Documentation/devicetree/bindings/serial/renesas,scif.yaml
index 6ba6b6d52208..a9c60334d702 100644
--- a/Documentation/devicetree/bindings/serial/renesas,scif.yaml
+++ b/Documentation/devicetree/bindings/serial/renesas,scif.yaml
@@ -77,6 +77,7 @@ properties:
- renesas,scif-r9a07g043 # RZ/G2UL and RZ/Five
- renesas,scif-r9a07g054 # RZ/V2L
- renesas,scif-r9a08g045 # RZ/G3S
+ - renesas,scif-r9a09g057 # RZ/V2H(P)
- const: renesas,scif-r9a07g044 # RZ/G2{L,LC} fallback
reg:
@@ -91,6 +92,9 @@ properties:
- description: Break interrupt
- description: Data Ready interrupt
- description: Transmit End interrupt
+ - description: Transmit End/Data Ready interrupt
+ - description: Receive buffer full interrupt (EDGE trigger)
+ - description: Transmit buffer empty interrupt (EDGE trigger)
interrupt-names:
minItems: 4
@@ -101,6 +105,9 @@ properties:
- const: bri
- const: dri
- const: tei
+ - const: teidri
+ - const: rxi-edge
+ - const: txi-edge
clocks:
minItems: 1
@@ -197,15 +204,31 @@ allOf:
compatible:
contains:
enum:
- - renesas,scif-r7s9210
- - renesas,scif-r9a07g044
+ - renesas,scif-r9a09g057
then:
properties:
interrupts:
- minItems: 6
+ minItems: 9
interrupt-names:
- minItems: 6
+ minItems: 9
+ else:
+ if:
+ properties:
+ compatible:
+ contains:
+ enum:
+ - renesas,scif-r7s9210
+ - renesas,scif-r9a07g044
+ then:
+ properties:
+ interrupts:
+ minItems: 6
+ maxItems: 6
+
+ interrupt-names:
+ minItems: 6
+ maxItems: 6
unevaluatedProperties: false
--
2.34.1
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