From: Wolfram Sang <wsa+renesas@sang-engineering.com>
To: linux-renesas-soc@vger.kernel.org
Cc: Wolfram Sang <wsa+renesas@sang-engineering.com>,
Geert Uytterhoeven <geert+renesas@glider.be>,
Magnus Damm <magnus.damm@gmail.com>,
Rob Herring <robh@kernel.org>,
Krzysztof Kozlowski <krzk+dt@kernel.org>,
Conor Dooley <conor+dt@kernel.org>,
devicetree@vger.kernel.org
Subject: [PATCH] ARM: dts: renesas: r9a06g032: use proper ordering for UART DMA channels
Date: Mon, 17 Mar 2025 13:03:55 +0100 [thread overview]
Message-ID: <20250317120356.67609-2-wsa+renesas@sang-engineering.com> (raw)
Commit ec956e2c6f4e ("dt-bindings: serial: snps-dw-apb-uart: Switch
dma-names order") enforces "tx", "rx" ordering of DMA channels. Adhere
to it to let the dtbs_check pass it. There is no ABI breakage because
the Linux driver never expected a certain ordering and no other usage is
known.
Signed-off-by: Wolfram Sang <wsa+renesas@sang-engineering.com>
---
arch/arm/boot/dts/renesas/r9a06g032.dtsi | 20 ++++++++++----------
1 file changed, 10 insertions(+), 10 deletions(-)
diff --git a/arch/arm/boot/dts/renesas/r9a06g032.dtsi b/arch/arm/boot/dts/renesas/r9a06g032.dtsi
index 7548291c8d7e..87e03446fb4d 100644
--- a/arch/arm/boot/dts/renesas/r9a06g032.dtsi
+++ b/arch/arm/boot/dts/renesas/r9a06g032.dtsi
@@ -211,8 +211,8 @@ uart3: serial@50000000 {
reg-io-width = <4>;
clocks = <&sysctrl R9A06G032_CLK_UART3>, <&sysctrl R9A06G032_HCLK_UART3>;
clock-names = "baudclk", "apb_pclk";
- dmas = <&dmamux 0 0 0 0 0 1>, <&dmamux 1 0 0 0 1 1>;
- dma-names = "rx", "tx";
+ dmas = <&dmamux 1 0 0 0 1 1>, <&dmamux 0 0 0 0 0 1>;
+ dma-names = "tx", "rx";
status = "disabled";
};
@@ -224,8 +224,8 @@ uart4: serial@50001000 {
reg-io-width = <4>;
clocks = <&sysctrl R9A06G032_CLK_UART4>, <&sysctrl R9A06G032_HCLK_UART4>;
clock-names = "baudclk", "apb_pclk";
- dmas = <&dmamux 2 0 0 0 2 1>, <&dmamux 3 0 0 0 3 1>;
- dma-names = "rx", "tx";
+ dmas = <&dmamux 3 0 0 0 3 1>, <&dmamux 2 0 0 0 2 1>;
+ dma-names = "tx", "rx";
status = "disabled";
};
@@ -237,8 +237,8 @@ uart5: serial@50002000 {
reg-io-width = <4>;
clocks = <&sysctrl R9A06G032_CLK_UART5>, <&sysctrl R9A06G032_HCLK_UART5>;
clock-names = "baudclk", "apb_pclk";
- dmas = <&dmamux 4 0 0 0 4 1>, <&dmamux 5 0 0 0 5 1>;
- dma-names = "rx", "tx";
+ dmas = <&dmamux 5 0 0 0 5 1>, <&dmamux 4 0 0 0 4 1>;
+ dma-names = "tx", "rx";
status = "disabled";
};
@@ -250,8 +250,8 @@ uart6: serial@50003000 {
reg-io-width = <4>;
clocks = <&sysctrl R9A06G032_CLK_UART6>, <&sysctrl R9A06G032_HCLK_UART6>;
clock-names = "baudclk", "apb_pclk";
- dmas = <&dmamux 6 0 0 0 6 1>, <&dmamux 7 0 0 0 7 1>;
- dma-names = "rx", "tx";
+ dmas = <&dmamux 7 0 0 0 7 1>, <&dmamux 6 0 0 0 6 1>;
+ dma-names = "tx", "rx";
status = "disabled";
};
@@ -263,8 +263,8 @@ uart7: serial@50004000 {
reg-io-width = <4>;
clocks = <&sysctrl R9A06G032_CLK_UART7>, <&sysctrl R9A06G032_HCLK_UART7>;
clock-names = "baudclk", "apb_pclk";
- dmas = <&dmamux 4 0 0 0 20 1>, <&dmamux 5 0 0 0 21 1>;
- dma-names = "rx", "tx";
+ dmas = <&dmamux 5 0 0 0 21 1>, <&dmamux 4 0 0 0 20 1>;
+ dma-names = "tx", "rx";
status = "disabled";
};
--
2.47.2
next reply other threads:[~2025-03-17 12:04 UTC|newest]
Thread overview: 3+ messages / expand[flat|nested] mbox.gz Atom feed top
2025-03-17 12:03 Wolfram Sang [this message]
2025-03-17 13:09 ` [PATCH] ARM: dts: renesas: r9a06g032: use proper ordering for UART DMA channels Geert Uytterhoeven
2025-03-17 15:58 ` Wolfram Sang
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