From mboxrd@z Thu Jan 1 00:00:00 1970 From: Soren Brinkmann Subject: [PATCH 0/4] Introduce clk_find_nearest_rate() Date: Mon, 30 Jun 2014 09:56:32 -0700 Message-ID: <1404147396-8041-1-git-send-email-soren.brinkmann@xilinx.com> Mime-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: QUOTED-PRINTABLE Return-path: Sender: devicetree-owner-u79uwXL29TY76Z2rM5mHXA@public.gmane.org To: Mike Turquette , "Rafael J. Wysocki" , Viresh Kumar Cc: Russell King , Michal Simek , Nicolas Ferre , =?UTF-8?q?Uwe=20Kleine-K=C3=B6nig?= , linux-pm-u79uwXL29TY76Z2rM5mHXA@public.gmane.org, linux-kernel-u79uwXL29TY76Z2rM5mHXA@public.gmane.org, cpufreq-u79uwXL29TY76Z2rM5mHXA@public.gmane.org, linux-arm-kernel-IAPFreCvJWM7uuMidbF8XUB+6BGkLq7r@public.gmane.org, Soren Brinkmann , Ian Campbell , netdev-u79uwXL29TY76Z2rM5mHXA@public.gmane.org, Kumar Gala , devicetree-u79uwXL29TY76Z2rM5mHXA@public.gmane.org, Rob Herring , Pawel Moll , Mark Rutland List-Id: devicetree@vger.kernel.org On Zynq I encountered issues due to rounding here and there. Often the issue would have been resolved by rounding towards the requested frequency. Unfortunately, the CCF does not specify the behavior of clk_round_rate() in terms of rounding, making this proposed API call useful for certain use-cases. An RFC of this series has been discussed here: https://lkml.org/lkml/2014/5/14/694 Mike: IIRC, you wanted to fix the return type of __clk_round_rate(). Do you have any patches for that already? I couldn't find anything in clk-next. Patch 1 adds the new API call. 2 and 3 apply the new API. And 4 is a minor fixup of the Zynq DT. The frequencies in the Zynq OPPs had been specified taking this rounding issues into account, which is no longer required with this patchset. Thanks, S=C3=B6ren Soren Brinkmann (4): clk: Introduce 'clk_find_nearest_rate()' cpufreq: cpu0: Use clk_find_nearest_rate() net: macb: Use clk_find_nearest_rate() API ARM: zynq: dt: Use properly rounded frequencies in OPPs arch/arm/boot/dts/zynq-7000.dtsi | 4 +-- drivers/clk/clk.c | 57 +++++++++++++++++++++++++++++= ++++++++ drivers/cpufreq/cpufreq-cpu0.c | 3 +- drivers/net/ethernet/cadence/macb.c | 2 +- include/linux/clk.h | 9 ++++++ 5 files changed, 71 insertions(+), 4 deletions(-) --=20 2.0.1.1.gfbfc394 -- To unsubscribe from this list: send the line "unsubscribe devicetree" i= n the body of a message to majordomo-u79uwXL29TY76Z2rM5mHXA@public.gmane.org More majordomo info at http://vger.kernel.org/majordomo-info.html