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From:   Greg Kroah-Hartman <gregkh@linuxfoundation.org>
To:     linux-kernel@vger.kernel.org
Cc:     Greg Kroah-Hartman <gregkh@linuxfoundation.org>,
        stable@vger.kernel.org,
        Martin Blumenstingl <martin.blumenstingl@googlemail.com>,
        Neil Armstrong <narmstrong@baylibre.com>,
        Sasha Levin <sashal@kernel.org>
Subject: [PATCH 5.10 051/116] ARM: dts: meson: Fix the UART compatible strings
Date:   Mon, 14 Feb 2022 10:25:50 +0100
Message-Id: <20220214092500.477036025@linuxfoundation.org>
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From: Martin Blumenstingl <martin.blumenstingl@googlemail.com>

[ Upstream commit 5225e1b87432dcf0d0fc3440824b91d04c1d6cc1 ]

The dt-bindings for the UART controller only allow the following values
for Meson6 SoCs:
- "amlogic,meson6-uart", "amlogic,meson-ao-uart"
- "amlogic,meson6-uart"

Use the correct fallback compatible string "amlogic,meson-ao-uart" for
AO UART. Drop the "amlogic,meson-uart" compatible string from the EE
domain UART controllers.

Fixes: ec9b59162fd831 ("ARM: dts: meson6: use stable UART bindings")
Signed-off-by: Martin Blumenstingl <martin.blumenstingl@googlemail.com>
Signed-off-by: Neil Armstrong <narmstrong@baylibre.com>
Link: https://lore.kernel.org/r/20211227180026.4068352-2-martin.blumenstingl@googlemail.com
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 arch/arm/boot/dts/meson.dtsi | 8 ++++----
 1 file changed, 4 insertions(+), 4 deletions(-)

diff --git a/arch/arm/boot/dts/meson.dtsi b/arch/arm/boot/dts/meson.dtsi
index 7649dd1e0b9ee..c928ae312e19c 100644
--- a/arch/arm/boot/dts/meson.dtsi
+++ b/arch/arm/boot/dts/meson.dtsi
@@ -42,14 +42,14 @@ hwrng: rng@8100 {
 			};
 
 			uart_A: serial@84c0 {
-				compatible = "amlogic,meson6-uart", "amlogic,meson-uart";
+				compatible = "amlogic,meson6-uart";
 				reg = <0x84c0 0x18>;
 				interrupts = <GIC_SPI 26 IRQ_TYPE_EDGE_RISING>;
 				status = "disabled";
 			};
 
 			uart_B: serial@84dc {
-				compatible = "amlogic,meson6-uart", "amlogic,meson-uart";
+				compatible = "amlogic,meson6-uart";
 				reg = <0x84dc 0x18>;
 				interrupts = <GIC_SPI 75 IRQ_TYPE_EDGE_RISING>;
 				status = "disabled";
@@ -87,7 +87,7 @@ saradc: adc@8680 {
 			};
 
 			uart_C: serial@8700 {
-				compatible = "amlogic,meson6-uart", "amlogic,meson-uart";
+				compatible = "amlogic,meson6-uart";
 				reg = <0x8700 0x18>;
 				interrupts = <GIC_SPI 93 IRQ_TYPE_EDGE_RISING>;
 				status = "disabled";
@@ -203,7 +203,7 @@ ir_receiver: ir-receiver@480 {
 			};
 
 			uart_AO: serial@4c0 {
-				compatible = "amlogic,meson6-uart", "amlogic,meson-ao-uart", "amlogic,meson-uart";
+				compatible = "amlogic,meson6-uart", "amlogic,meson-ao-uart";
 				reg = <0x4c0 0x18>;
 				interrupts = <GIC_SPI 90 IRQ_TYPE_EDGE_RISING>;
 				status = "disabled";
-- 
2.34.1