[PATCH 1/2] dt-bindings: serial: samsung: add DMA properties
From: Krzysztof Kozlowski <krzk@kernel.org>
Date: 2021-02-12 16:42:51
Also in:
linux-serial, lkml
Subsystem:
open firmware and flattened device tree bindings, the rest, tty layer and serial drivers · Maintainers:
Rob Herring, Krzysztof Kozlowski, Conor Dooley, Linus Torvalds, Greg Kroah-Hartman, Jiri Slaby
The Samsung SoC UART nodes have usually DMA so dtschema has to reflect
this to fix dtbs_check warnings like:
arch/arm/boot/dts/exynos4210-smdkv310.dt.yaml: serial@13800000:
'dma-names', 'dmas' do not match any of the regexes: 'pinctrl-[0-9]+'
Signed-off-by: Krzysztof Kozlowski <krzk@kernel.org>
---
.../devicetree/bindings/serial/samsung_uart.yaml | 10 ++++++++++
1 file changed, 10 insertions(+)
diff --git a/Documentation/devicetree/bindings/serial/samsung_uart.yaml b/Documentation/devicetree/bindings/serial/samsung_uart.yaml
index 21ee627b2ced..3e29b561223d 100644
--- a/Documentation/devicetree/bindings/serial/samsung_uart.yaml
+++ b/Documentation/devicetree/bindings/serial/samsung_uart.yaml@@ -51,6 +51,16 @@ properties: - pattern: '^clk_uart_baud[0-3]$' - pattern: '^clk_uart_baud[0-3]$' + dmas: + items: + - description: DMA controller phandle and request line for RX + - description: DMA controller phandle and request line for TX + + dma-names: + items: + - const: rx + - const: tx + interrupts: description: RX interrupt and optionally TX interrupt. minItems: 1
--
2.25.1