From mboxrd@z Thu Jan 1 00:00:00 1970 From: Stephen Boyd Subject: Re: [PATCH v5 1/7] clk: at91: clk-generated: remove useless divisor loop Date: Fri, 1 Sep 2017 15:55:09 -0700 Message-ID: <20170901225509.GC21656@codeaurora.org> References: Mime-Version: 1.0 Content-Type: text/plain; charset=us-ascii Return-path: Content-Disposition: inline In-Reply-To: Sender: devicetree-owner-u79uwXL29TY76Z2rM5mHXA@public.gmane.org To: Quentin Schulz Cc: mturquette-rdvid1DuHRBWk0Htik3J/w@public.gmane.org, robh+dt-DgEjT+Ai2ygdnm+yROfE0A@public.gmane.org, mark.rutland-5wv7dgnIgG8@public.gmane.org, lgirdwood-Re5JQEeQqe8AvxtiuMwx3w@public.gmane.org, broonie-DgEjT+Ai2ygdnm+yROfE0A@public.gmane.org, nicolas.ferre-UWL1GkI3JZL3oGB3hsPCZA@public.gmane.org, alexandre.belloni-wi1+55ScJUtKEb57/3fJTNBPR1lH4CV8@public.gmane.org, linux-I+IVW8TIWO2tmTQ+vhA3Yw@public.gmane.org, boris.brezillon-wi1+55ScJUtKEb57/3fJTNBPR1lH4CV8@public.gmane.org, perex-/Fr2/VpizcU@public.gmane.org, tiwai-IBi9RG/b67k@public.gmane.org, linux-clk-u79uwXL29TY76Z2rM5mHXA@public.gmane.org, devicetree-u79uwXL29TY76Z2rM5mHXA@public.gmane.org, linux-kernel-u79uwXL29TY76Z2rM5mHXA@public.gmane.org, alsa-devel-K7yf7f+aM1XWsZ/bQMPhNw@public.gmane.org, linux-arm-kernel-IAPFreCvJWM7uuMidbF8XUB+6BGkLq7r@public.gmane.org, cyrille.pitchen-yU5RGvR974pGWvitb5QawA@public.gmane.org, thomas.petazzoni-wi1+55ScJUtKEb57/3fJTNBPR1lH4CV8@public.gmane.org List-Id: alsa-devel@alsa-project.org On 08/10, Quentin Schulz wrote: > The driver requests the current clk rate of each of its parent clocks to > decide whether a clock rate is suitable or not. It does not request > determine_rate from a parent clock which could request a rate change in > parent clock (i.e. there is no parent rate propagation). > > We know the rate we want (passed along req argument of the function) and > the parent clock rate, thus we know the closest rounded divisor, we > don't need to iterate over the available divisors to find the best one > for a given clock. > > Signed-off-by: Quentin Schulz > Acked-by: Boris Brezillon > Acked-by: Nicolas Ferre > --- Applied to clk-next -- Qualcomm Innovation Center, Inc. is a member of Code Aurora Forum, a Linux Foundation Collaborative Project -- To unsubscribe from this list: send the line "unsubscribe devicetree" in the body of a message to majordomo-u79uwXL29TY76Z2rM5mHXA@public.gmane.org More majordomo info at http://vger.kernel.org/majordomo-info.html