From mboxrd@z Thu Jan 1 00:00:00 1970 From: ttynkkynen@nvidia.com (Tuomas Tynkkynen) Date: Fri, 11 Jul 2014 18:11:41 +0300 Subject: [PATCH 12/13] cpufreq: Add cpufreq driver for Tegra124 In-Reply-To: <20140711145735.GB6523@ulmo> References: <1405028569-14253-1-git-send-email-ttynkkynen@nvidia.com> <1405028569-14253-13-git-send-email-ttynkkynen@nvidia.com> <20140711091207.GY23218@tbergstrom-lnx.Nvidia.com> <20140711145735.GB6523@ulmo> Message-ID: <53BFFEAD.7000405@nvidia.com> To: linux-arm-kernel@lists.infradead.org List-Id: linux-arm-kernel.lists.infradead.org On 11/07/14 17:57, Thierry Reding wrote: >> I don't think that's going to work? The voltage scaling is handled in hw. > > Do we have to handle it in hardware or can we opt to do it in software, > too? > With the PLLX, voltage scaling is done entirely in SW. With the DFLL, it's possible to stay in open-loop mode and do it in SW, but there's not much point in that. -- nvpublic