From mboxrd@z Thu Jan 1 00:00:00 1970 From: public_timo.s@silentcreek.de (Timo Sigurdsson) Date: Tue, 4 Aug 2015 10:38:19 +0200 (CEST) Subject: [PATCH] ARM: dts: sunxi: Raise minimum CPU voltage for sun7i-a20 to a level all boards can supply In-Reply-To: <20150803091300.GY2564@lukather> References: <1438543386-7253-1-git-send-email-public_timo.s@silentcreek.de><20150803091300.GY2564@lukather> Message-ID: <20150804083819.2F3EE6C83EF9@dd34104.kasserver.com> To: linux-arm-kernel@lists.infradead.org List-Id: linux-arm-kernel.lists.infradead.org Hi Maxime, Maxime Ripard schrieb am 03.08.2015 11:13: > On Sun, Aug 02, 2015 at 09:23:06PM +0200, Timo Sigurdsson wrote: >> sun7i-a20.dtsi contains an cpufreq operating point at 0.9 volts. Most A20 >> boards >> (or all?), however, do not allow the voltage to go below 1.0V. Thus, raise the >> voltage for the lowest operating point to 1.0V so all boards can actually use >> it. > > This is not a property of a board, but is the actual limit documented > by Allwinner for the A20. Some individual SoCs might have wider > tolerances, but that's not a property of a board, it's really a > property of a single SoC, and we cannot make any assumption on the > board. Thanks for the clarification. That was a misunderstanding on my side. I can update the commit message in a second version of the patch, but the actual code change can be kept as is then, I guess. > (and please make sure to run checkpatch before sending your patches) Sorry about that. Will do when I post a second version of the patch. Thanks, Timo