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Message-ID: <20250306152451.2356762-4-thierry.bultel.yh@bp.renesas.com>
Date: Thu, 6 Mar 2025 16:24:37 +0100
From: Thierry Bultel <thierry.bultel.yh@...renesas.com>
To: thierry.bultel@...atsea.fr
Cc: linux-renesas-soc@...r.kernel.org,
geert@...ux-m68k.org,
paul.barker.ct@...renesas.com,
Thierry Bultel <thierry.bultel.yh@...renesas.com>,
Geert Uytterhoeven <geert+renesas@...der.be>,
linux-kernel@...r.kernel.org,
linux-serial@...r.kernel.org,
devicetree@...r.kernel.org
Subject: [PATCH v4 03/13] dt-bindings: serial: Add compatible for Renesas RZ/T2H SoC in sci
The SCI of RZ/T2H SoC (a.k.a r9a09g077), as a lot
of similarities with other Renesas SoC like G2L, G3S, V2L;
However, it has a different set of registers, and in addition to serial,
this IP also supports SCIe (encoder), SmartCard, i2c and spi.
This is why the 'renesas,sci' fallback for generic SCI does not apply for it.
Signed-off-by: Thierry Bultel <thierry.bultel.yh@...renesas.com>
---
Changes v3->v4:
- Added more details in commit description about why renesas,sci
does not apply.
- Removed uart-has-rtscts for !rzsci.
----
.../bindings/serial/renesas,sci.yaml | 63 ++++++++++++-------
1 file changed, 39 insertions(+), 24 deletions(-)
diff --git a/Documentation/devicetree/bindings/serial/renesas,sci.yaml b/Documentation/devicetree/bindings/serial/renesas,sci.yaml
index 64d3db6e54e5..13c5c47cd72f 100644
--- a/Documentation/devicetree/bindings/serial/renesas,sci.yaml
+++ b/Documentation/devicetree/bindings/serial/renesas,sci.yaml
@@ -9,9 +9,6 @@ title: Renesas Serial Communication Interface
maintainers:
- Geert Uytterhoeven <geert+renesas@...der.be>
-allOf:
- - $ref: serial.yaml#
-
properties:
compatible:
oneOf:
@@ -22,6 +19,8 @@ properties:
- renesas,r9a07g054-sci # RZ/V2L
- const: renesas,sci # generic SCI compatible UART
+ - const: renesas,r9a09g077-sci # RZ/T2H
+
- items:
- const: renesas,sci # generic SCI compatible UART
@@ -54,8 +53,6 @@ properties:
- fck # UART functional clock
- sck # optional external clock input
- uart-has-rtscts: false
-
required:
- compatible
- reg
@@ -63,25 +60,43 @@ required:
- clocks
- clock-names
-if:
- properties:
- compatible:
- contains:
- enum:
- - renesas,r9a07g043-sci
- - renesas,r9a07g044-sci
- - renesas,r9a07g054-sci
-then:
- properties:
- resets:
- maxItems: 1
-
- power-domains:
- maxItems: 1
-
- required:
- - resets
- - power-domains
+allOf:
+ - $ref: serial.yaml#
+ - if:
+ properties:
+ compatible:
+ contains:
+ const: renesas,r9a09g077-sci
+ then:
+ properties:
+ power-domains:
+ maxItems: 1
+ required:
+ - power-domains
+
+ else:
+ properties:
+ uart-has-rtscts: false
+
+ - if:
+ properties:
+ compatible:
+ contains:
+ enum:
+ - renesas,r9a07g043-sci
+ - renesas,r9a07g044-sci
+ - renesas,r9a07g054-sci
+ then:
+ properties:
+ resets:
+ maxItems: 1
+
+ power-domains:
+ maxItems: 1
+
+ required:
+ - resets
+ - power-domains
unevaluatedProperties: false
--
2.43.0
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