From mboxrd@z Thu Jan 1 00:00:00 1970 From: public_timo.s@silentcreek.de (Timo Sigurdsson) Date: Mon, 3 Aug 2015 00:00:06 +0200 (CEST) Subject: [linux-sunxi] [RFC] ARM: dts: sunxi: Add regulators and board-specific operating points for LeMaker BananaPi In-Reply-To: <55B79FCA.7070907@redhat.com> References: <1437960486-2809-1-git-send-email-public_timo.s@silentcreek.de> <55B5E6DB.8020009@redhat.com> <20150727120918.191F76C82FB4@dd34104.kasserver.com> <55B62768.6040403@redhat.com> <20150728124911.GA2564@lukather><55B790BA.5000509@redhat.com> <20150728150929.233B56C80391@dd34104.kasserver.com><55B79FCA.7070907@redhat.com> Message-ID: <20150802220006.E5BE06C810BC@dd34104.kasserver.com> To: linux-arm-kernel@lists.infradead.org List-Id: linux-arm-kernel.lists.infradead.org Hi Stefan, you didn't include me in your answer, hence the late reply... Stefan Monnier schrieb am 29.07.2015 02:02: >> IMHO for a common maximum opp that's a good approach. But for the lowest >> frequency setting, it would seem more logical to me, to raise the voltage >> to a point where all boards will run fine with them, unless those boards >> cannot handle the frequency regardless of the higher voltage. > I generally agre, tho IIRC some measurements seem to indicate that the > lowest frequency settings did not bring much (if any) reduction in power > consumption, making them rather useless. That's an interesting point. However, that would be a different discussion. I wouldn't mind if the 144MHz would be removed - my point was just that if it's supposed to be a common setting, it should work on all boards. I posted a patch today to fix this. [1] That might be a good place to discuss whether this setting should be removed entirely. Regards, Timo [1] https://groups.google.com/forum/#!topic/linux-sunxi/fIfbdn7mrQA