From mboxrd@z Thu Jan 1 00:00:00 1970 From: s.hauer@pengutronix.de (Sascha Hauer) Date: Sat, 20 Jul 2013 13:58:29 +0200 Subject: [RFC v2] ARM: i.MX pllv1: Implement set_rate In-Reply-To: <20130720153104.96b6723a20bde172a8ea1ba1@mail.ru> References: <1374308975-20596-1-git-send-email-shc_work@mail.ru> <20130720111639.GA29785@pengutronix.de> <20130720153104.96b6723a20bde172a8ea1ba1@mail.ru> Message-ID: <20130720115829.GD29785@pengutronix.de> To: linux-arm-kernel@lists.infradead.org List-Id: linux-arm-kernel.lists.infradead.org On Sat, Jul 20, 2013 at 03:31:04PM +0400, Alexander Shiyan wrote: > On Sat, 20 Jul 2013 13:16:39 +0200 > Sascha Hauer wrote: > > > On Sat, Jul 20, 2013 at 12:29:35PM +0400, Alexander Shiyan wrote: > > > This patch implements frequency change for i.MX pllv1. > > > Selection of the values of the registers is not optimal, since is > > > made by simple enumeration of all possible values. > > > > You do not mention why you want to adjust the rate. Normally we've been > > happy with the static values from the bootloader. > > For CPUfreq. > Only one barrier to make it workable. Isn't it better to adjust the dividers only? I haven't made good experience with adjusting the PLLs. Sascha -- Pengutronix e.K. | | Industrial Linux Solutions | http://www.pengutronix.de/ | Peiner Str. 6-8, 31137 Hildesheim, Germany | Phone: +49-5121-206917-0 | Amtsgericht Hildesheim, HRA 2686 | Fax: +49-5121-206917-5555 |