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From: erin.lo@mediatek.com (Erin Lo)
To: linux-arm-kernel@lists.infradead.org
Subject: [PATCH v9 10/10] arm: dts: mt2701: Use real clock for UARTs
Date: Wed, 22 Jun 2016 15:40:29 +0800	[thread overview]
Message-ID: <1466581229-2342-11-git-send-email-erin.lo@mediatek.com> (raw)
In-Reply-To: <1466581229-2342-1-git-send-email-erin.lo@mediatek.com>

We used to use a fixed rate clock for the UARTs. Now that we have clock
support we can associate the correct clocks to the UARTs and drop the
26MHz fixed rate UART clock.

Signed-off-by: Erin Lo <erin.lo@mediatek.com>
---
 arch/arm/boot/dts/mt2701.dtsi | 18 ++++++++----------
 1 file changed, 8 insertions(+), 10 deletions(-)

diff --git a/arch/arm/boot/dts/mt2701.dtsi b/arch/arm/boot/dts/mt2701.dtsi
index c9a8dbf..7eab6f4 100644
--- a/arch/arm/boot/dts/mt2701.dtsi
+++ b/arch/arm/boot/dts/mt2701.dtsi
@@ -73,12 +73,6 @@
 		#clock-cells = <0>;
 	};
 
-	uart_clk: dummy26m {
-		compatible = "fixed-clock";
-		clock-frequency = <26000000>;
-		#clock-cells = <0>;
-	};
-
 	clk26m: oscillator at 0 {
 		compatible = "fixed-clock";
 		#clock-cells = <0>;
@@ -186,7 +180,8 @@
 			     "mediatek,mt6577-uart";
 		reg = <0 0x11002000 0 0x400>;
 		interrupts = <GIC_SPI 51 IRQ_TYPE_LEVEL_LOW>;
-		clocks = <&uart_clk>;
+		clocks = <&pericfg CLK_PERI_UART0_SEL>, <&pericfg CLK_PERI_UART0>;
+		clock-names = "baud", "bus";
 		status = "disabled";
 	};
 
@@ -195,7 +190,8 @@
 			     "mediatek,mt6577-uart";
 		reg = <0 0x11003000 0 0x400>;
 		interrupts = <GIC_SPI 52 IRQ_TYPE_LEVEL_LOW>;
-		clocks = <&uart_clk>;
+		clocks = <&pericfg CLK_PERI_UART1_SEL>, <&pericfg CLK_PERI_UART1>;
+		clock-names = "baud", "bus";
 		status = "disabled";
 	};
 
@@ -204,7 +200,8 @@
 			     "mediatek,mt6577-uart";
 		reg = <0 0x11004000 0 0x400>;
 		interrupts = <GIC_SPI 53 IRQ_TYPE_LEVEL_LOW>;
-		clocks = <&uart_clk>;
+		clocks = <&pericfg CLK_PERI_UART2_SEL>, <&pericfg CLK_PERI_UART2>;
+		clock-names = "baud", "bus";
 		status = "disabled";
 	};
 
@@ -213,7 +210,8 @@
 			     "mediatek,mt6577-uart";
 		reg = <0 0x11005000 0 0x400>;
 		interrupts = <GIC_SPI 54 IRQ_TYPE_LEVEL_LOW>;
-		clocks = <&uart_clk>;
+		clocks = <&pericfg CLK_PERI_UART3_SEL>, <&pericfg CLK_PERI_UART3>;
+		clock-names = "baud", "bus";
 		status = "disabled";
 	};
 };
-- 
1.9.1

      parent reply	other threads:[~2016-06-22  7:40 UTC|newest]

Thread overview: 26+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2016-06-22  7:40 [PATCH v9 00/10] Add clock support for Mediatek MT2701 Erin Lo
2016-06-22  7:40 ` [PATCH v9 01/10] clk: fix initial state of critical clock's parents Erin Lo
2016-07-02  1:21   ` Stephen Boyd
2016-07-04  3:51     ` James Liao
2016-07-08 23:32       ` Michael Turquette
2016-07-09  0:46         ` Stephen Boyd
2016-07-11  8:24         ` James Liao
2016-08-03  5:46           ` James Liao
2016-08-09  5:39             ` James Liao
2016-08-10 21:09               ` Stephen Boyd
2016-08-12  8:17                 ` James Liao
2016-08-13  0:39                   ` Stephen Boyd
2016-08-15  2:47                     ` James Liao
2016-06-22  7:40 ` [PATCH v9 02/10] clk: mediatek: remove __init from clk registration functions Erin Lo
2016-06-22  7:40 ` [PATCH v9 03/10] clk: mediatek: Refine the makefile to support multiple clock drivers Erin Lo
2016-08-13  0:41   ` Stephen Boyd
2016-06-22  7:40 ` [PATCH v9 04/10] dt-bindings: ARM: Mediatek: Document bindings for MT2701 Erin Lo
2016-06-22  7:40 ` [PATCH v9 05/10] clk: mediatek: Add dt-bindings for MT2701 clocks Erin Lo
2016-06-22  7:40 ` [PATCH v9 06/10] clk: mediatek: Add MT2701 clock support Erin Lo
2016-08-13  0:44   ` Stephen Boyd
2016-08-15  3:00     ` James Liao
2016-08-15 18:16       ` Stephen Boyd
2016-06-22  7:40 ` [PATCH v9 07/10] reset: mediatek: Add MT2701 reset controller dt-binding file Erin Lo
2016-06-22  7:40 ` [PATCH v9 08/10] reset: mediatek: Add MT2701 reset driver Erin Lo
2016-06-22  7:40 ` [PATCH v9 09/10] arm: dts: mt2701: Add clock controller device nodes Erin Lo
2016-06-22  7:40 ` Erin Lo [this message]

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