linux-kernel - [PATCH 14/15] ARM: dts: sun8i: r40: Add RTC device node

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Message-Id: <20181128093013.24442-16-wens@csie.org>
Date:   Wed, 28 Nov 2018 17:30:12 +0800
From:   Chen-Yu Tsai <wens@...e.org>
To:     Maxime Ripard <maxime.ripard@...tlin.com>,
        Alexandre Belloni <alexandre.belloni@...tlin.com>,
        Alessandro Zummo <a.zummo@...ertech.it>,
        Michael Turquette <mturquette@...libre.com>,
        Stephen Boyd <sboyd@...nel.org>,
        Rob Herring <robh+dt@...nel.org>,
        Mark Rutland <mark.rutland@....com>
Cc:     Chen-Yu Tsai <wens@...e.org>, linux-arm-kernel@...ts.infradead.org,
        linux-rtc@...r.kernel.org, linux-clk@...r.kernel.org,
        devicetree@...r.kernel.org, linux-kernel@...r.kernel.org,
        linux-sunxi@...glegroups.com
Subject: [PATCH 14/15] ARM: dts: sun8i: r40: Add RTC device node

The R40 has an RTC hardware block, which has additional registers
that are not related to RTC or clock functions, and is otherwise
compatible with the H3's RTC.

Add a device node for it, and fix up any references to the LOSC.

Signed-off-by: Chen-Yu Tsai <wens@...e.org>
---
 arch/arm/boot/dts/sun8i-r40.dtsi | 16 +++++++++++++---
 1 file changed, 13 insertions(+), 3 deletions(-)

diff --git a/arch/arm/boot/dts/sun8i-r40.dtsi b/arch/arm/boot/dts/sun8i-r40.dtsi
index a8917f8b1c80..89762dbefe42 100644
--- a/arch/arm/boot/dts/sun8i-r40.dtsi
+++ b/arch/arm/boot/dts/sun8i-r40.dtsi
@@ -70,7 +70,7 @@
 			compatible = "fixed-clock";
 			clock-frequency = <32768>;
 			clock-accuracy = <20000>;
-			clock-output-names = "osc32k";
+			clock-output-names = "ext-osc32k";
 		};
 	};
 
@@ -315,17 +315,27 @@
 		ccu: clock@...0000 {
 			compatible = "allwinner,sun8i-r40-ccu";
 			reg = <0x01c20000 0x400>;
-			clocks = <&osc24M>, <&osc32k>;
+			clocks = <&osc24M>, <&rtc 0>;
 			clock-names = "hosc", "losc";
 			#clock-cells = <1>;
 			#reset-cells = <1>;
 		};
 
+		rtc: rtc@...0400 {
+			compatible = "allwinner,sun8i-r40-rtc",
+				     "allwinner,sun8i-h3-rtc";
+			reg = <0x01c20400 0x400>;
+			interrupts = <GIC_SPI 24 IRQ_TYPE_LEVEL_HIGH>;
+			clock-output-names = "osc32k", "osc32k-out";
+			clocks = <&osc32k>;
+			#clock-cells = <1>;
+		};
+
 		pio: pinctrl@...0800 {
 			compatible = "allwinner,sun8i-r40-pinctrl";
 			reg = <0x01c20800 0x400>;
 			interrupts = <GIC_SPI 28 IRQ_TYPE_LEVEL_HIGH>;
-			clocks = <&ccu CLK_BUS_PIO>, <&osc24M>, <&osc32k>;
+			clocks = <&ccu CLK_BUS_PIO>, <&osc24M>, <&rtc 0>;
 			clock-names = "apb", "hosc", "losc";
 			gpio-controller;
 			interrupt-controller;
-- 
2.20.0.rc1