linux-kernel - [PATCH v2 5/5] arm64: dts: exynos5433: Add support of bus frequency using VDD

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Date:   Thu, 08 Dec 2016 13:58:11 +0900
From:   Chanwoo Choi <cw00.choi@...sung.com>
To:     krzk@...nel.org, javier@....samsung.com, kgene@...nel.org,
        robh+dt@...nel.org, s.nawrocki@...sung.com, tomasz.figa@...il.com
Cc:     cw00.choi@...sung.com, myungjoo.ham@...sung.com,
        kyungmin.park@...sung.com, devicetree@...r.kernel.org,
        linux-samsung-soc@...r.kernel.org,
        linux-arm-kernel@...ts.infradead.org, linux-kernel@...r.kernel.org
Subject: [PATCH v2 5/5] arm64: dts: exynos5433: Add support of bus frequency
 using VDD_INT on TM2

This patch adds the bus Device-tree nodes for INT (Internal) block
to enable the bus frequency scaling.

Signed-off-by: Chanwoo Choi <cw00.choi@...sung.com>
Reviewed-by: Krzysztof Kozlowski <krzk@...nel.org>
---
 arch/arm64/boot/dts/exynos/exynos5433-tm2.dts | 70 +++++++++++++++++++++++++++
 1 file changed, 70 insertions(+)

diff --git a/arch/arm64/boot/dts/exynos/exynos5433-tm2.dts b/arch/arm64/boot/dts/exynos/exynos5433-tm2.dts
index c08589970134..451788642b21 100644
--- a/arch/arm64/boot/dts/exynos/exynos5433-tm2.dts
+++ b/arch/arm64/boot/dts/exynos/exynos5433-tm2.dts
@@ -170,6 +170,58 @@
 	};
 };
 
+&bus_g2d_400 {
+	devfreq-events = <&ppmu_event0_d0_general>, <&ppmu_event0_d1_general>;
+	vdd-supply = <&buck4_reg>;
+	exynos,saturation-ratio = <10>;
+	status = "okay";
+};
+
+&bus_g2d_266 {
+	devfreq = <&bus_g2d_400>;
+	status = "okay";
+};
+
+&bus_gscl {
+	devfreq = <&bus_g2d_400>;
+	status = "okay";
+};
+
+&bus_hevc {
+	devfreq = <&bus_g2d_400>;
+	status = "okay";
+};
+
+&bus_jpeg {
+	devfreq = <&bus_g2d_400>;
+	status = "okay";
+};
+
+&bus_mfc {
+	devfreq = <&bus_g2d_400>;
+	status = "okay";
+};
+
+&bus_mscl {
+	devfreq = <&bus_g2d_400>;
+	status = "okay";
+};
+
+&bus_noc0 {
+	devfreq = <&bus_g2d_400>;
+	status = "okay";
+};
+
+&bus_noc1 {
+	devfreq = <&bus_g2d_400>;
+	status = "okay";
+};
+
+&bus_noc2 {
+	devfreq = <&bus_g2d_400>;
+	status = "okay";
+};
+
 &cmu_aud {
 	assigned-clocks = <&cmu_aud CLK_MOUT_AUD_PLL_USER>;
 	assigned-clock-parents = <&cmu_top CLK_FOUT_AUD_PLL>;
@@ -794,6 +846,24 @@
 	bus-width = <4>;
 };
 
+&ppmu_d0_general {
+	status = "okay";
+	events {
+		ppmu_event0_d0_general: ppmu-event0-d0-general {
+			event-name = "ppmu-event0-d0-general";
+		};
+	};
+};
+
+&ppmu_d1_general {
+	status = "okay";
+	events {
+		ppmu_event0_d1_general: ppmu-event0-d1-general {
+		       event-name = "ppmu-event0-d1-general";
+	       };
+       };
+};
+
 &pinctrl_alive {
 	pinctrl-names = "default";
 	pinctrl-0 = <&initial_alive>;
-- 
1.9.1