ARM: dts: exynos: Add support of bus frequency for exynos4412-trats/odroidu3

This patch adds the bus device tree nodes for both MIF (Memory) and INT
(Internal) block to enable the bus frequency.

The DMC bus is parent device in MIF block using VDD_MIF and the LEFTBUS
bus is parent device in INT block using VDD_INT.

Signed-off-by: Chanwoo Choi <cw00.choi@samsung.com>
Reviewed-by: Krzysztof Kozlowski <k.kozlowski@samsung.com>
[m.reichl and linux.amoon: Tested it on exynos4412-odroidu3 board]
Tested-by: Markus Reichl <m.reichl@fivetechno.de>
Tested-by: Anand Moon <linux.amoon@gmail.com>
Signed-off-by: Krzysztof Kozlowski <k.kozlowski@samsung.com>
Change-Id: I29a555f3b58e557db90397063c39193174ad9f9b

diff --git a/arch/arm/boot/dts/exynos4412-odroid-common.dtsi b/arch/arm/boot/dts/exynos4412-odroid-common.dtsi
index 28b5b88fbbe79d2f735a20ebc0be9bdd1d0aa546..f8b8af23665c9c8c983cb99071db8a4776494768 100644 (file)
--- a/arch/arm/boot/dts/exynos4412-odroid-common.dtsi
+++ b/arch/arm/boot/dts/exynos4412-odroid-common.dtsi
@@ -518,6 +518,53 @@
        };
 };
 
+&bus_dmc {
+       devfreq-events = <&ppmu_dmc0_3>, <&ppmu_dmc1_3>;
+       vdd-supply = <&buck1_reg>;
+       status = "okay";
+};
+
+&bus_acp {
+       devfreq = <&bus_dmc>;
+       status = "okay";
+};
+
+&bus_c2c {
+       devfreq = <&bus_dmc>;
+       status = "okay";
+};
+
+&bus_leftbus {
+       devfreq-events = <&ppmu_leftbus_3>, <&ppmu_rightbus_3>;
+       vdd-supply = <&buck3_reg>;
+       status = "okay";
+};
+
+&bus_rightbus {
+       devfreq = <&bus_leftbus>;
+       status = "okay";
+};
+
+&bus_display {
+       devfreq = <&bus_leftbus>;
+       status = "okay";
+};
+
+&bus_fsys {
+       devfreq = <&bus_leftbus>;
+       status = "okay";
+};
+
+&bus_peri {
+       devfreq = <&bus_leftbus>;
+       status = "okay";
+};
+
+&bus_mfc {
+       devfreq = <&bus_leftbus>;
+       status = "okay";
+};
+
 &cpu0 {
        cpu0-supply = <&buck2_reg>;
 };

diff --git a/arch/arm/boot/dts/exynos4412-trats2.dts b/arch/arm/boot/dts/exynos4412-trats2.dts
index 9c17ad2118052db5cae02b89a290ca23562a694b..f6cdbdb5da039bc59af3513331d0fc54ca191db3 100644 (file)
--- a/arch/arm/boot/dts/exynos4412-trats2.dts
+++ b/arch/arm/boot/dts/exynos4412-trats2.dts
@@ -1273,6 +1273,52 @@
        };
 };
 
+&bus_dmc {
+       devfreq-events = <&ppmu_dmc0_3>, <&ppmu_dmc1_3>;
+       vdd-supply = <&buck1_reg>;
+       status = "okay";
+};
+
+&bus_acp {
+       devfreq = <&bus_dmc>;
+       status = "okay";
+};
+
+&bus_c2c {
+       devfreq = <&bus_dmc>;
+       status = "okay";
+};
+
+&bus_leftbus {
+       devfreq-events = <&ppmu_leftbus_3>, <&ppmu_rightbus_3>;
+       vdd-supply = <&buck3_reg>;
+       status = "okay";
+};
+
+&bus_rightbus {
+       devfreq = <&bus_leftbus>;
+       status = "okay";
+};
+
+&bus_display {
+       devfreq = <&bus_leftbus>;
+       status = "okay";
+};
+
+&bus_fsys {
+       devfreq = <&bus_leftbus>;
+       status = "okay";
+};
+
+&bus_peri {
+       devfreq = <&bus_leftbus>;
+       status = "okay";
+};
+
+&bus_mfc {
+       devfreq = <&bus_leftbus>;
+       status = "okay";
+};
 
 &cpu0 {
        cpu0-supply = <&buck2_reg>;