Commit 691d010e authored Apr 11, 2016 by Chanwoo Choi Committed by Krzysztof Kozlowski May 03, 2016

ARM: dts: exynos: Add support of bus frequency using VDD_INT for exynos3250-rinato



This patch adds the bus device-tree nodes of INT (internal) block
to enable the bus frequency scaling. The following sub-blocks share
the VDD_INT power source:
- LEFTBUS (parent device)
- RIGHTBUS
- PERIL
- LCD0
- FSYS
- MCUISP / ISP
- MFC

The LEFTBUS is parent device with devfreq ondemand governor
and the rest of devices depend on the LEFTBUS device.

Signed-off-by: Chanwoo Choi <cw00.choi@samsung.com>
Reviewed-by: Krzysztof Kozlowski <k.kozlowski@samsung.com>
Signed-off-by: Krzysztof Kozlowski <k.kozlowski@samsung.com>

parent 4a80467a

arch/arm/boot/dts/exynos3250-rinato.dts

+41 −0

Original line number	Diff line number	Diff line
		@@ -154,6 +154,47 @@
		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_lcd0 {
		devfreq = <&bus_leftbus>;
		status = "okay";
		};

		&bus_fsys {
		devfreq = <&bus_leftbus>;
		status = "okay";
		};

		&bus_mcuisp {
		devfreq = <&bus_leftbus>;
		status = "okay";
		};

		&bus_isp {
		devfreq = <&bus_leftbus>;
		status = "okay";
		};

		&bus_peril {
		devfreq = <&bus_leftbus>;
		status = "okay";
		};

		&bus_mfc {
		devfreq = <&bus_leftbus>;
		status = "okay";
		};

		&cpu0 {
		cpu0-supply = <&buck2_reg>;
		};