From mboxrd@z Thu Jan 1 00:00:00 1970 From: Maxime Ripard Subject: Re: [PATCH] ARM: sun8i: a33: remove highest OPP to fix CPU crashes Date: Tue, 21 Mar 2017 16:56:32 +0100 Message-ID: <20170321155632.k7vtmkorucsspnun@lukather> References: <20170320112551.25825-1-quentin.schulz@free-electrons.com> Reply-To: maxime.ripard-wi1+55ScJUtKEb57/3fJTNBPR1lH4CV8@public.gmane.org Mime-Version: 1.0 Content-Type: multipart/signed; micalg=pgp-sha256; protocol="application/pgp-signature"; boundary="eurcn6bmi2eoq46j" Return-path: Sender: linux-sunxi-/JYPxA39Uh5TLH3MbocFFw@public.gmane.org Content-Disposition: inline In-Reply-To: <20170320112551.25825-1-quentin.schulz-wi1+55ScJUtKEb57/3fJTNBPR1lH4CV8@public.gmane.org> List-Post: , List-Help: , List-Archive: , List-Unsubscribe: , To: Quentin Schulz Cc: robh+dt-DgEjT+Ai2ygdnm+yROfE0A@public.gmane.org, mark.rutland-5wv7dgnIgG8@public.gmane.org, linux-I+IVW8TIWO13Tl8gKCW/8w@public.gmane.org, wens-jdAy2FN1RRM@public.gmane.org, icenowy-ymACFijhrKM@public.gmane.org, linux-sunxi-/JYPxA39Uh5TLH3MbocFFw@public.gmane.org, devicetree-u79uwXL29TY76Z2rM5mHXA@public.gmane.org, linux-arm-kernel-IAPFreCvJWM7uuMidbF8XUB+6BGkLq7r@public.gmane.org, linux-kernel-u79uwXL29TY76Z2rM5mHXA@public.gmane.org, thomas.petazzoni-wi1+55ScJUtKEb57/3fJTNBPR1lH4CV8@public.gmane.org List-Id: devicetree@vger.kernel.org --eurcn6bmi2eoq46j Content-Type: text/plain; charset=UTF-8 Content-Disposition: inline On Mon, Mar 20, 2017 at 12:25:51PM +0100, Quentin Schulz wrote: > The highest supported frequency (1.2GHz) requires to "overvolt" the CPU. > However, some boards still do not have the cpu-supply DT property in the > cpu DT node which means that the CPU will always run with the same input > voltage but try to run at 1.2GHz frequency. This is the source of > (experienced) CPU crashes. > > Remove the OPP which requires overvolting the CPU until all boards have > a cpu-supply property. > > Fixes: 03749eb88e635ad67818827adde8e5eea7b64571 ("ARM: dts: sun8i: add > opp-v2 table for A33") The commit ID must be 12 chars, as documented in Documentation/process/submitting-patches.rst. You can also use the pretty format given there to be sure to have it right. > > Signed-off-by: Quentin Schulz Applied, thanks! Maxime -- Maxime Ripard, Free Electrons Embedded Linux and Kernel engineering http://free-electrons.com --eurcn6bmi2eoq46j--