linux-kernel - [RFC 4/4] arm64: dts: rockchip: Set the display-subsystem devfreq

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Date:   Tue, 30 Apr 2019 14:05:24 -0400
From:   Gaël PORTAY <gael.portay@...labora.com>
To:     Rob Herring <robh+dt@...nel.org>,
        Mark Rutland <mark.rutland@....com>,
        Heiko Stuebner <heiko@...ech.de>,
        Michael Turquette <mturquette@...libre.com>,
        Stephen Boyd <sboyd@...nel.org>,
        MyungJoo Ham <myungjoo.ham@...sung.com>,
        Kyungmin Park <kyungmin.park@...sung.com>,
        Chanwoo Choi <cw00.choi@...sung.com>,
        Sandy Huang <hjc@...k-chips.com>,
        David Airlie <airlied@...ux.ie>,
        Daniel Vetter <daniel@...ll.ch>,
        Gaël PORTAY <gael.portay@...labora.com>,
        devicetree@...r.kernel.org, linux-arm-kernel@...ts.infradead.org,
        linux-rockchip@...ts.infradead.org, linux-kernel@...r.kernel.org,
        linux-clk@...r.kernel.org, linux-pm@...r.kernel.org,
        dri-devel@...ts.freedesktop.org
Cc:     Douglas Anderson <dianders@...omium.org>,
        Matthias Kaehlcke <mka@...omium.org>,
        Derek Basehore <dbasehore@...omium.org>,
        Lin Huang <hl@...k-chips.com>,
        Enric Balletbo i Serra <enric.balletbo@...labora.com>,
        Boris Brezillon <boris.brezillon@...labora.com>,
        kernel@...labora.com
Subject: [RFC 4/4] arm64: dts: rockchip: Set the display-subsystem devfreq

Use the Dynamic Memory Controller as the display-subsystem's devfreq
device.

Signed-off-by: Gaël PORTAY <gael.portay@...labora.com>
---
 arch/arm64/boot/dts/rockchip/rk3399-gru.dtsi | 4 ++++
 arch/arm64/boot/dts/rockchip/rk3399.dtsi     | 2 +-
 2 files changed, 5 insertions(+), 1 deletion(-)

diff --git a/arch/arm64/boot/dts/rockchip/rk3399-gru.dtsi b/arch/arm64/boot/dts/rockchip/rk3399-gru.dtsi
index 40e78186560b..a5cbbc08f7e1 100644
--- a/arch/arm64/boot/dts/rockchip/rk3399-gru.dtsi
+++ b/arch/arm64/boot/dts/rockchip/rk3399-gru.dtsi
@@ -375,6 +375,10 @@
 		<200000000>;
 };
 
+&display_subsystem {
+	devfreq = <&dmc>;
+};
+
 &emmc_phy {
 	status = "okay";
 };
diff --git a/arch/arm64/boot/dts/rockchip/rk3399.dtsi b/arch/arm64/boot/dts/rockchip/rk3399.dtsi
index 87ee084fac89..253b476163fd 100644
--- a/arch/arm64/boot/dts/rockchip/rk3399.dtsi
+++ b/arch/arm64/boot/dts/rockchip/rk3399.dtsi
@@ -155,7 +155,7 @@
 		};
 	};
 
-	display-subsystem {
+	display_subsystem: display-subsystem {
 		compatible = "rockchip,display-subsystem";
 		ports = <&vopl_out>, <&vopb_out>;
 	};
-- 
2.21.0