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Date: Wed, 29 Jul 2015 17:27:54 -0700 From: Stephen Boyd <sboyd@...eaurora.org> To: James Liao <jamesjj.liao@...iatek.com> Cc: Matthias Brugger <matthias.bgg@...il.com>, Mike Turquette <mturquette@...libre.com>, Heiko Stubner <heiko@...ech.de>, srv_heupstream@...iatek.com, Daniel Kurtz <djkurtz@...omium.org>, Ricky Liang <jcliang@...omium.org>, Rob Herring <robh+dt@...nel.org>, Sascha Hauer <kernel@...gutronix.de>, devicetree@...r.kernel.org, linux-arm-kernel@...ts.infradead.org, linux-kernel@...r.kernel.org, linux-mediatek@...ts.infradead.org, Sascha Hauer <s.hauer@...gutronix.de> Subject: Re: [PATCH v5 06/10] clk: mediatek: mt8173: Fix enabling of critical clocks On 07/29, James Liao wrote: > From: Sascha Hauer <s.hauer@...gutronix.de> > > On the MT8173 the clocks are provided by different units. To enable > the critical clocks we must be sure that all parent clocks are already > registered, otherwise the parents of the critical clocks end up being > unused and get disabled later. > > On MT8173, for example, it is the CLK_TOP clocks that have CLK_APMIXED > PLLs as their parents, so we cannot enable the CLK_TOP critical clocks > until the CLK_APMIXED clocks have all been registered. > > To find a place where all parents are registered we try each time > after we've registered some clocks if all known providers are present > now and only then we enable the critical clocks. > > Signed-off-by: Sascha Hauer <s.hauer@...gutronix.de> > Signed-off-by: James Liao <jamesjj.liao@...iatek.com> > --- Please move up to v4.2-rc2 so that this patch can be dropped. I already applied this and sent it off to Linus so it's in -rc2. -- 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 linux-kernel" in the body of a message to majordomo@...r.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
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