linux-kernel - [PATCH] arm64: dts: realtek: Clean up RTD1295 UART reg property

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Date:   Sun, 30 Jul 2017 13:17:36 +0200
From:   Andreas Färber <afaerber@...e.de>
To:     linux-arm-kernel@...ts.infradead.org
Cc:     linux-kernel@...r.kernel.org, Roc He <hepeng@...oo.tv>,
        Andreas Färber <afaerber@...e.de>,
        Rob Herring <robh+dt@...nel.org>,
        Mark Rutland <mark.rutland@....com>,
        Catalin Marinas <catalin.marinas@....com>,
        Will Deacon <will.deacon@....com>, devicetree@...r.kernel.org
Subject: [PATCH] arm64: dts: realtek: Clean up RTD1295 UART reg property

The downstream RTD1195 and apparently RTD1295 trees have a modified 8250
serial driver that acknowledges its interrupts using the second reg area,
which is an irq mux.

Drop these unused second reg entries for the UART nodes.

Fixes: 72a7786c0a0d ("ARM64: dts: Add Realtek RTD1295 and Zidoo X9S")
Signed-off-by: Andreas Färber <afaerber@...e.de>
---
 arch/arm64/boot/dts/realtek/rtd1295.dtsi | 9 +++------
 1 file changed, 3 insertions(+), 6 deletions(-)

diff --git a/arch/arm64/boot/dts/realtek/rtd1295.dtsi b/arch/arm64/boot/dts/realtek/rtd1295.dtsi
index d8f84666c8ce..43da91fce2b1 100644
--- a/arch/arm64/boot/dts/realtek/rtd1295.dtsi
+++ b/arch/arm64/boot/dts/realtek/rtd1295.dtsi
@@ -89,8 +89,7 @@
 
 		uart0: serial@...07800 {
 			compatible = "snps,dw-apb-uart";
-			reg = <0x98007800 0x400>,
-			      <0x98007000 0x100>;
+			reg = <0x98007800 0x400>;
 			reg-shift = <2>;
 			reg-io-width = <4>;
 			clock-frequency = <27000000>;
@@ -99,8 +98,7 @@
 
 		uart1: serial@...1b200 {
 			compatible = "snps,dw-apb-uart";
-			reg = <0x9801b200 0x100>,
-			      <0x9801b00c 0x100>;
+			reg = <0x9801b200 0x100>;
 			reg-shift = <2>;
 			reg-io-width = <4>;
 			clock-frequency = <432000000>;
@@ -109,8 +107,7 @@
 
 		uart2: serial@...1b400 {
 			compatible = "snps,dw-apb-uart";
-			reg = <0x9801b400 0x100>,
-			      <0x9801b00c 0x100>;
+			reg = <0x9801b400 0x100>;
 			reg-shift = <2>;
 			reg-io-width = <4>;
 			clock-frequency = <432000000>;
-- 
2.12.3