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authorWolfram Sang <wsa+renesas@sang-engineering.com>2025-03-18 11:53:53 +0300
committerGreg Kroah-Hartman <gregkh@linuxfoundation.org>2025-03-20 18:11:11 +0300
commitfbb1dcd8871b7d04880ed793af03febb9669db04 (patch)
tree1d43ff56de1b6cabbe54dc7078b280dd10880e78
parent9e2a0d4591d2fef24f79940b884470e674374ed8 (diff)
downloadlinux-fbb1dcd8871b7d04880ed793af03febb9669db04.tar.xz
dt-bindings: serial: snps-dw-apb-uart: document RZ/N1 binding without DMA
Renesas RZ/N1D has this UART with and without DMA support. Currently, only the binding with DMA support is described. Add the missing one without DMA support which can fallback even more. Signed-off-by: Wolfram Sang <wsa+renesas@sang-engineering.com> Reviewed-by: Miquel Raynal <miquel.raynal@bootlin.com> Reviewed-by: Geert Uytterhoeven <geert+renesas@glider.be> Link: https://lore.kernel.org/r/20250318085353.18990-2-wsa+renesas@sang-engineering.com Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
-rw-r--r--Documentation/devicetree/bindings/serial/snps-dw-apb-uart.yaml20
1 files changed, 20 insertions, 0 deletions
diff --git a/Documentation/devicetree/bindings/serial/snps-dw-apb-uart.yaml b/Documentation/devicetree/bindings/serial/snps-dw-apb-uart.yaml
index 1c16ca3b4e29..1aa3480d8d81 100644
--- a/Documentation/devicetree/bindings/serial/snps-dw-apb-uart.yaml
+++ b/Documentation/devicetree/bindings/serial/snps-dw-apb-uart.yaml
@@ -16,6 +16,20 @@ allOf:
- if:
properties:
compatible:
+ items:
+ - enum:
+ - renesas,r9a06g032-uart
+ - renesas,r9a06g033-uart
+ - const: renesas,rzn1-uart
+ - const: snps,dw-apb-uart
+ then:
+ properties:
+ dmas: false
+ dma-names: false
+
+ - if:
+ properties:
+ compatible:
contains:
const: starfive,jh7110-uart
then:
@@ -35,6 +49,12 @@ properties:
- renesas,r9a06g032-uart
- renesas,r9a06g033-uart
- const: renesas,rzn1-uart
+ - const: snps,dw-apb-uart
+ - items:
+ - enum:
+ - renesas,r9a06g032-uart
+ - renesas,r9a06g033-uart
+ - const: renesas,rzn1-uart
- items:
- enum:
- brcm,bcm11351-dw-apb-uart