linux-kernel - [RESEND PATCH v5 2/4] arm64: dts: rk3399: Add dfi and dmc nodes.

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Date:   Tue,  9 Mar 2021 00:38:56 +0100
From:   Daniel Lezcano <daniel.lezcano@...aro.org>
To:     heiko@...ech.de
Cc:     linux-arm-kernel@...ts.infradead.org,
        linux-rockchip@...ts.infradead.org, Lin Huang <hl@...k-chips.com>,
        Enric Balletbo i Serra <enric.balletbo@...labora.com>,
        Gaël PORTAY <gael.portay@...labora.com>,
        Rob Herring <robh+dt@...nel.org>,
        Johan Jonker <jbx6244@...il.com>,
        Helen Koike <helen.koike@...labora.com>,
        Chen-Yu Tsai <wens@...e.org>,
        Jacob Chen <jacob2.chen@...k-chips.com>,
        Shunqian Zheng <zhengsq@...k-chips.com>,
        Robin Murphy <robin.murphy@....com>,
        Boris Brezillon <boris.brezillon@...labora.com>,
        devicetree@...r.kernel.org (open list:OPEN FIRMWARE AND FLATTENED
        DEVICE TREE BINDINGS), linux-kernel@...r.kernel.org (open list)
Subject: [RESEND PATCH v5 2/4] arm64: dts: rk3399: Add dfi and dmc nodes.

From: Lin Huang <hl@...k-chips.com>

These are required to support DDR DVFS on rk3399 platform.

Signed-off-by: Lin Huang <hl@...k-chips.com>
Signed-off-by: Enric Balletbo i Serra <enric.balletbo@...labora.com>
Signed-off-by: Gaël PORTAY <gael.portay@...labora.com>
Signed-off-by: Daniel Lezcano <daniel.lezcano@...aro.org>
---
 arch/arm64/boot/dts/rockchip/rk3399.dtsi | 19 +++++++++++++++++++
 1 file changed, 19 insertions(+)

diff --git a/arch/arm64/boot/dts/rockchip/rk3399.dtsi b/arch/arm64/boot/dts/rockchip/rk3399.dtsi
index edbbf35fe19e..6f23d99236fe 100644
--- a/arch/arm64/boot/dts/rockchip/rk3399.dtsi
+++ b/arch/arm64/boot/dts/rockchip/rk3399.dtsi
@@ -1937,6 +1937,25 @@
 		status = "disabled";
 	};
 
+	dfi: dfi@...30000 {
+		reg = <0x00 0xff630000 0x00 0x4000>;
+		compatible = "rockchip,rk3399-dfi";
+		rockchip,pmu = <&pmugrf>;
+		interrupts = <GIC_SPI 131 IRQ_TYPE_LEVEL_HIGH 0>;
+		clocks = <&cru PCLK_DDR_MON>;
+		clock-names = "pclk_ddr_mon";
+		status = "disabled";
+	};
+
+	dmc: dmc {
+		compatible = "rockchip,rk3399-dmc";
+		rockchip,pmu = <&pmugrf>;
+		devfreq-events = <&dfi>;
+		clocks = <&cru SCLK_DDRC>;
+		clock-names = "dmc_clk";
+		status = "disabled";
+	};
+
 	pinctrl: pinctrl {
 		compatible = "rockchip,rk3399-pinctrl";
 		rockchip,grf = <&grf>;
-- 
2.17.1