From mboxrd@z Thu Jan 1 00:00:00 1970 From: Heiko Stuebner Subject: Re: [PATCH v2 0/2] fix rk3066a based boards hang when cpufreq changes Date: Mon, 18 Jan 2016 00:16:50 +0100 Message-ID: <1825501.4ZfleL6hBQ@phil> References: <1452864223-423-1-git-send-email-andy.yan@rock-chips.com> Mime-Version: 1.0 Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7Bit Return-path: In-Reply-To: <1452864223-423-1-git-send-email-andy.yan-TNX95d0MmH7DzftRWevZcw@public.gmane.org> Sender: devicetree-owner-u79uwXL29TY76Z2rM5mHXA@public.gmane.org To: Andy Yan Cc: naobsd-Re5JQEeQqe8AvxtiuMwx3w@public.gmane.org, robh+dt-DgEjT+Ai2ygdnm+yROfE0A@public.gmane.org, linux-lFZ/pmaqli7XmaaqVzeoHQ@public.gmane.org, devicetree-u79uwXL29TY76Z2rM5mHXA@public.gmane.org, galak-sgV2jX0FEOL9JmXXK+q4OQ@public.gmane.org, linux-kernel-u79uwXL29TY76Z2rM5mHXA@public.gmane.org, ijc+devicetree-KcIKpvwj1kUDXYZnReoRVg@public.gmane.org, linux-rockchip-IAPFreCvJWM7uuMidbF8XUB+6BGkLq7r@public.gmane.org, pawel.moll-5wv7dgnIgG8@public.gmane.org, mark.rutland-5wv7dgnIgG8@public.gmane.org, inux-arm-kernel-IAPFreCvJWM7uuMidbF8XUB+6BGkLq7r@public.gmane.org List-Id: devicetree@vger.kernel.org Hi Andy, Am Freitag, 15. Januar 2016, 21:23:43 schrieb Andy Yan: > 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. applied both to my dts32 branch for 4.6 Thanks Heiko -- To unsubscribe from this list: send the line "unsubscribe devicetree" in the body of a message to majordomo-u79uwXL29TY76Z2rM5mHXA@public.gmane.org More majordomo info at http://vger.kernel.org/majordomo-info.html