linux-kernel - [PATCH v3 4/5] ARM: sunxi: h3/h5: switch apb0-related clocks to r

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Message-Id: <20170329104246.34204-5-icenowy@aosc.io>
Date:   Wed, 29 Mar 2017 18:42:45 +0800
From:   Icenowy Zheng <icenowy@...c.io>
To:     Michael Turquette <mturquette@...libre.com>,
        Maxime Ripard <maxime.ripard@...e-electrons.com>,
        Rob Herring <robh+dt@...nel.org>, Chen-Yu Tsai <wens@...e.org>
Cc:     linux-clk@...r.kernel.org, devicetree@...r.kernel.org,
        linux-arm-kernel@...ts.infradead.org, linux-kernel@...r.kernel.org,
        linux-sunxi@...glegroups.com, Icenowy Zheng <icenowy@...c.xyz>
Subject: [PATCH v3 4/5] ARM: sunxi: h3/h5: switch apb0-related clocks to r_ccu

From: Icenowy Zheng <icenowy@...c.xyz>

Now we have driver for the PRCM CCU, switch to use it instead of
old-style clock nodes for apb0-related clocks in sunxi-h3-h5.dtsi .

The mux 3 of R_CCU is still the internal oscillator, which is said to be
16MHz plus minus 30%, and get a measured value of 15MHz~16MHz on my two
H3 boards and one H5 board.

Signed-off-by: Icenowy Zheng <icenowy@...c.xyz>
---
Changes in v3:
- Change osc32000 to iosc.

 arch/arm/boot/dts/sunxi-h3-h5.dtsi | 47 +++++++++++++-------------------------
 1 file changed, 16 insertions(+), 31 deletions(-)

diff --git a/arch/arm/boot/dts/sunxi-h3-h5.dtsi b/arch/arm/boot/dts/sunxi-h3-h5.dtsi
index 6640ebfa6419..a7e858a82c90 100644
--- a/arch/arm/boot/dts/sunxi-h3-h5.dtsi
+++ b/arch/arm/boot/dts/sunxi-h3-h5.dtsi
@@ -41,8 +41,10 @@
  */
 
 #include <dt-bindings/clock/sun8i-h3-ccu.h>
+#include <dt-bindings/clock/sun8i-r-ccu.h>
 #include <dt-bindings/interrupt-controller/arm-gic.h>
 #include <dt-bindings/reset/sun8i-h3-ccu.h>
+#include <dt-bindings/reset/sun8i-r-ccu.h>
 
 / {
 	interrupt-parent = <&gic>;
@@ -68,31 +70,12 @@
 			clock-output-names = "osc32k";
 		};
 
-		apb0: apb0_clk {
-			compatible = "fixed-factor-clock";
+		iosc: internal-osc-clk {
 			#clock-cells = <0>;
-			clock-div = <1>;
-			clock-mult = <1>;
-			clocks = <&osc24M>;
-			clock-output-names = "apb0";
-		};
-
-		apb0_gates: clk@...01428 {
-			compatible = "allwinner,sun8i-h3-apb0-gates-clk",
-				     "allwinner,sun4i-a10-gates-clk";
-			reg = <0x01f01428 0x4>;
-			#clock-cells = <1>;
-			clocks = <&apb0>;
-			clock-indices = <0>, <1>;
-			clock-output-names = "apb0_pio", "apb0_ir";
-		};
-
-		ir_clk: ir_clk@...01454 {
-			compatible = "allwinner,sun4i-a10-mod0-clk";
-			reg = <0x01f01454 0x4>;
-			#clock-cells = <0>;
-			clocks = <&osc32k>, <&osc24M>;
-			clock-output-names = "ir";
+			compatible = "fixed-clock";
+			clock-frequency = <16000000>;
+			clock-accuracy = <300000000>;
+			clock-output-names = "iosc";
 		};
 	};
 
@@ -576,9 +559,12 @@
 				     <GIC_SPI 41 IRQ_TYPE_LEVEL_HIGH>;
 		};
 
-		apb0_reset: reset@...014b0 {
-			reg = <0x01f014b0 0x4>;
-			compatible = "allwinner,sun6i-a31-clock-reset";
+		r_ccu: clock@...1400 {
+			compatible = "allwinner,sun50i-a64-r-ccu";
+			reg = <0x01f01400 0x100>;
+			clocks = <&osc24M>, <&osc32k>, <&iosc>;
+			clock-names = "hosc", "losc", "iosc";
+			#clock-cells = <1>;
 			#reset-cells = <1>;
 		};
 
@@ -589,9 +575,9 @@
 
 		ir: ir@...02000 {
 			compatible = "allwinner,sun5i-a13-ir";
-			clocks = <&apb0_gates 1>, <&ir_clk>;
+			clocks = <&r_ccu CLK_APB0_IR>, <&r_ccu CLK_IR>;
 			clock-names = "apb", "ir";
-			resets = <&apb0_reset 1>;
+			resets = <&r_ccu RST_APB0_IR>;
 			interrupts = <GIC_SPI 37 IRQ_TYPE_LEVEL_HIGH>;
 			reg = <0x01f02000 0x40>;
 			status = "disabled";
@@ -601,9 +587,8 @@
 			compatible = "allwinner,sun8i-h3-r-pinctrl";
 			reg = <0x01f02c00 0x400>;
 			interrupts = <GIC_SPI 45 IRQ_TYPE_LEVEL_HIGH>;
-			clocks = <&apb0_gates 0>, <&osc24M>, <&osc32k>;
+			clocks = <&r_ccu CLK_APB0_PIO>, <&osc24M>, <&osc32k>;
 			clock-names = "apb", "hosc", "losc";
-			resets = <&apb0_reset 0>;
 			gpio-controller;
 			#gpio-cells = <3>;
 			interrupt-controller;
-- 
2.12.0