diff options
| author | Ovidiu Panait <ovidiu.panait.rb@renesas.com> | 2025-11-07 21:07:03 +0000 |
|---|---|---|
| committer | Alexandre Belloni <alexandre.belloni@bootlin.com> | 2025-12-08 22:28:17 +0100 |
| commit | 4800046b56a5b240ab280f55165484a9dbdf7092 (patch) | |
| tree | 73a5ec0b2ccdaa9f61a924593a9b5ae82baf3f3d /Documentation | |
| parent | bf5ef3ce42da98c59d820dfdd9513ff210622f32 (diff) | |
dt-bindings: rtc: renesas,rz-rtca3: Add RZ/V2H support
The Renesas RZ/V2H RTC IP is based on the same RTCA3 IP as RZ/G3S
(r9a08g045), with the following differences:
- It lacks the time capture functionality
- The maximum supported periodic interrupt frequency is 128Hz instead
of 256Hz
- It requires two reset lines instead of one
Add new compatible string "renesas,r9a09g057-rtca3" for RZ/V2H and update
the binding accordingly:
- Allow "resets" to contain one or two entries depending on the SoC.
- Add "reset-names" property, but make it required only for RZ/V2H.
Signed-off-by: Ovidiu Panait <ovidiu.panait.rb@renesas.com>
Acked-by: Conor Dooley <conor.dooley@microchip.com>
Link: https://patch.msgid.link/20251107210706.45044-2-ovidiu.panait.rb@renesas.com
Signed-off-by: Alexandre Belloni <alexandre.belloni@bootlin.com>
Diffstat (limited to 'Documentation')
| -rw-r--r-- | Documentation/devicetree/bindings/rtc/renesas,rz-rtca3.yaml | 46 |
1 files changed, 41 insertions, 5 deletions
diff --git a/Documentation/devicetree/bindings/rtc/renesas,rz-rtca3.yaml b/Documentation/devicetree/bindings/rtc/renesas,rz-rtca3.yaml index e70eeb66aa64..ccb1638c35b9 100644 --- a/Documentation/devicetree/bindings/rtc/renesas,rz-rtca3.yaml +++ b/Documentation/devicetree/bindings/rtc/renesas,rz-rtca3.yaml @@ -9,14 +9,12 @@ title: Renesas RTCA-3 Real Time Clock maintainers: - Claudiu Beznea <claudiu.beznea.uj@bp.renesas.com> -allOf: - - $ref: rtc.yaml# - properties: compatible: items: - enum: - renesas,r9a08g045-rtca3 # RZ/G3S + - renesas,r9a09g057-rtca3 # RZ/V2H - const: renesas,rz-rtca3 reg: @@ -48,8 +46,12 @@ properties: maxItems: 1 resets: - items: - - description: VBATTB module reset + minItems: 1 + maxItems: 2 + + reset-names: + minItems: 1 + maxItems: 2 required: - compatible @@ -61,6 +63,39 @@ required: - power-domains - resets +allOf: + - $ref: rtc.yaml# + + - if: + properties: + compatible: + contains: + const: renesas,r9a08g045-rtca3 + then: + properties: + resets: + items: + - description: VBATTB module reset + reset-names: + const: vbattb + - if: + properties: + compatible: + contains: + const: renesas,r9a09g057-rtca3 + then: + properties: + resets: + items: + - description: RTC reset + - description: Reset for the RTEST registers + reset-names: + items: + - const: rtc + - const: rtest + required: + - reset-names + additionalProperties: false examples: @@ -81,4 +116,5 @@ examples: clock-names = "bus", "counter"; power-domains = <&cpg>; resets = <&cpg R9A08G045_VBAT_BRESETN>; + reset-names = "vbattb"; }; |