Messages in this thread | | | Date | Thu, 19 Mar 2015 22:28:07 -0700 | From | Stephen Boyd <> | Subject | Re: [PATCH] clk: qcom: fix RCG M/N counter configuration |
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On 03/04, Archit Taneja wrote: > Currently, a RCG's M/N counter (used for fraction division) is set to either > 'bypass' (counter disabled) or 'dual edge' (counter enabled) based on whether > the corresponding rcg struct has a mnd field specified and a non-zero N. > > In the case where M and N are the same value, the M/N counter is still enabled > by code even though no division takes place. Leaving the RCG in such a state > can result in improper behavior. This was observed with the DSI pixel clock RCG > when M and N were both set to 1. > > Add an additional check (M != N) to enable the M/N counter only when it's needed > for fraction division. > > Signed-off-by: Archit Taneja <architt@codeaurora.org> > ---
I'm going to queue this up for 4.1 given that this isn't a new regression. But I'll tag it for stable so that we get it into all the stable trees.
-- Qualcomm Innovation Center, Inc. is a member of Code Aurora Forum, a Linux Foundation Collaborative Project
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