From: Andy Yan <andy.yan@rock-chips.com>
To: heiko@sntech.de, naobsd@gmail.com
Cc: robh+dt@kernel.org, linux@arm.linux.org.uk,
devicetree@vger.kernel.org, galak@codeaurora.org,
linux-kernel@vger.kernel.org, ijc+devicetree@hellion.org.uk,
linux-rockchip@lists.infradead.org, pawel.moll@arm.com,
mark.rutland@arm.com, inux-arm-kernel@lists.infradead.org,
Andy Yan <andy.yan@rock-chips.com>
Subject: [PATCH v2 0/2] fix rk3066a based boards hang when cpufreq changes
Date: Fri, 15 Jan 2016 21:23:43 +0800 [thread overview]
Message-ID: <1452864223-423-1-git-send-email-andy.yan@rock-chips.com> (raw)
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(-)
--
1.9.1
next reply other threads:[~2016-01-15 13:24 UTC|newest]
Thread overview: 4+ messages / expand[flat|nested] mbox.gz Atom feed top
2016-01-15 13:23 Andy Yan [this message]
2016-01-15 13:25 ` [PATCH v2 1/2] ARM: dts: rockchip: increase vdd_arm voltage for rk3066a based boards Andy Yan
2016-01-15 13:26 ` [PATCH v2 2/2] ARM: dts: rockchip: enable pwm3 as pwm regulator " Andy Yan
2016-01-17 23:16 ` [PATCH v2 0/2] fix rk3066a based boards hang when cpufreq changes Heiko Stuebner
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