Thread (21 messages) 21 messages, 4 authors, 2017-06-12

Re: [PATCH v4 6/7] ARM: dts: meson8: switch to new bindings for UART nodes

From: Neil Armstrong <hidden>
Date: 2017-06-12 12:49:50
Also in: linux-amlogic, linux-arm-kernel, linux-devicetree, lkml

On 06/12/2017 11:13 AM, Jerome Brunet wrote:
On Fri, 2017-06-09 at 11:49 +0200, Neil Armstrong wrote:
quoted
Switch to the stable UART bindings by adding a XTAL node and using the
proper compatible strings.

Signed-off-by: Neil Armstrong <redacted>
---
 arch/arm/boot/dts/meson8.dtsi | 23 +++++++++++++++++++----
 1 file changed, 19 insertions(+), 4 deletions(-)
I think this is clashing with the recent change from Martin on meson8 clock
driver. Kevin just applied it : 

https://lkml.kernel.org/r/m2d1ad9g38.fsf@baylibre.com

<&clk81> no longer exists ...
quoted
diff --git a/arch/arm/boot/dts/meson8.dtsi b/arch/arm/boot/dts/meson8.dtsi
index 6993077..a2ea112 100644
--- a/arch/arm/boot/dts/meson8.dtsi
+++ b/arch/arm/boot/dts/meson8.dtsi
@@ -83,6 +83,13 @@
 		};
 	};
 
+	xtal: xtal-clk {
+		compatible = "fixed-clock";
+		clock-frequency = <24000000>;
+		clock-output-names = "xtal";
+		#clock-cells = <0>;
+	};
+
 	clk81: clk@0 {
 		#clock-cells = <0>;
 		compatible = "fixed-clock";
@@ -199,17 +206,25 @@
 };
 
 &uart_AO {
-	clocks = <&clk81>;
+	compatible = "amlogic,meson8-uart", "amlogic,meson-ao-uart";
+	clocks = <&xtal>, <&clk81>, <&clk81>;
+	clock-names = "xtal", "pclk", "baud";
 };
 
 &uart_A {
-	clocks = <&clk81>;
+	compatible = "amlogic,meson8-uart";
+	clocks = <&xtal>, <&clk81>, <&clk81>;
+	clock-names = "xtal", "pclk", "baud";
 };
 
 &uart_B {
-	clocks = <&clk81>;
+	compatible = "amlogic,meson8-uart";
+	clocks = <&xtal>, <&clk81>, <&clk81>;
+	clock-names = "xtal", "pclk", "baud";
 };
 
 &uart_C {
-	clocks = <&clk81>;
+	compatible = "amlogic,meson8-uart";
+	clocks = <&xtal>, <&clk81>, <&clk81>;
+	clock-names = "xtal", "pclk", "baud";
 };
I will drop this until martin has a better version, and tested !

Neil
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