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: Martin Blumenstingl <hidden>
Date: 2017-06-09 22:37:34
Also in: linux-amlogic, linux-arm-kernel, linux-devicetree, lkml

Hi Neil,

On Fri, Jun 9, 2017 at 11:49 AM, Neil Armstrong [off-list ref] wrote:
Switch to the stable UART bindings by adding a XTAL node and using the
proper compatible strings.
unfortunately this won't apply now that Kevin has merged my "ARM: dts:
meson8: add and use the real clock controller"
on the other hand this will make the patch easier as you can now do
the same changes as in meson8b.dtsi
quoted hunk ↗ jump to hunk
Signed-off-by: Neil Armstrong <narmstrong-rdvid1DuHRBWk0Htik3J/w@public.gmane.org>
---
 arch/arm/boot/dts/meson8.dtsi | 23 +++++++++++++++++++----
 1 file changed, 19 insertions(+), 4 deletions(-)
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";
 };
--
1.9.1


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