[PATCH v2 0/2] fix rk3066a based boards hang when cpufreq changes
From: Andy Yan
Date: Fri Jan 15 2016 - 08:24:17 EST
I found the rayeager board always hang in the system boot
process or when cpufreq change. When check the BSP code[0]
from ChipSpark, I found the current vdd_arm voltage is too
low and so is the vdd_logic voltage, which should be modulated
by PWM3.
So I increase the vdd_arm voltage and enabled pwm3 as a pwm
regulator here.
[0] https://github.com/RockchipOpensourceCommunity/px2-android-kernel-3.0/blob/master/arch/arm/mach-rkpx2/board-rkpx2-sdk.c
Changes in v2:
- move the opp table to rk3066a.dtsi, make it as the default opp table
for rk3066a based board.
- also enable the pwm regulator for bqcurie2 and Marsboard
Andy Yan (2):
ARM: dts: rockchip: increase vdd_arm voltage for rk3066a based boards
ARM: dts: rockchip: enable pwm3 as pwm regulator for rk3066a based
boards
arch/arm/boot/dts/rk3066a-bqcurie2.dts | 16 ++++++++++++++++
arch/arm/boot/dts/rk3066a-marsboard.dts | 16 ++++++++++++++++
arch/arm/boot/dts/rk3066a-rayeager.dts | 16 ++++++++++++++++
arch/arm/boot/dts/rk3066a.dtsi | 12 +++++++-----
4 files changed, 55 insertions(+), 5 deletions(-)
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1.9.1