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>

diff --git a/arch/arm/boot/dts/exynos4412-odroid-common.dtsi b/arch/arm/boot/dts/exynos4412-odroid-common.dtsi
index b4983cbc4f8c6e2741ba4a9c8205f951f5d46b21..2015f10071f9b6e3ac6de2e8bee617b3bed0f3d8 100644 (file)
--- a/arch/arm/boot/dts/exynos4412-odroid-common.dtsi
+++ b/arch/arm/boot/dts/exynos4412-odroid-common.dtsi
@@ -109,6 +109,53 @@
        };
 };
 
+&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 dce3cebe06060e1259ba918875f4ab8faf644086..9f3fb9a7f5f4fd2ffe821559baf505419647e512 100644 (file)
--- a/arch/arm/boot/dts/exynos4412-trats2.dts
+++ b/arch/arm/boot/dts/exynos4412-trats2.dts
@@ -289,6 +289,53 @@
        status = "okay";
 };
 
+&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>;
 };