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author | Chanwoo Choi <cw00.choi@samsung.com> | 2016-04-11 03:57:56 (GMT) |
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committer | Krzysztof Kozlowski <k.kozlowski@samsung.com> | 2016-05-03 10:22:58 (GMT) |
commit | 691d010e5d5f9582b5976d5f8cfb9ac9ce4b5008 (patch) | |
tree | 96374dcdaa3c67d5ac60bc23a3ed2757912d1cd8 /arch/arm/boot/dts/exynos3250-rinato.dts | |
parent | 4a80467a7cc0e038c241578faafbd1fee0c5b570 (diff) | |
download | linux-691d010e5d5f9582b5976d5f8cfb9ac9ce4b5008.tar.xz |
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>
Diffstat (limited to 'arch/arm/boot/dts/exynos3250-rinato.dts')
-rw-r--r-- | arch/arm/boot/dts/exynos3250-rinato.dts | 41 |
1 files changed, 41 insertions, 0 deletions
diff --git a/arch/arm/boot/dts/exynos3250-rinato.dts b/arch/arm/boot/dts/exynos3250-rinato.dts index 9710e79..0944489 100644 --- a/arch/arm/boot/dts/exynos3250-rinato.dts +++ b/arch/arm/boot/dts/exynos3250-rinato.dts @@ -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>; }; |