Messages in this thread |  | | Subject | Re: [PATCH v5 00/10] clk: implement clock rate protection mechanism | From | Jerome Brunet <> | Date | Wed, 20 Dec 2017 18:45:08 +0100 |
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On Tue, 2017-12-19 at 16:38 -0800, Michael Turquette wrote: > Applied to clk-protect-rate,
Thx !
> with the exception that I did not apply > "clk: fix CLK_SET_RATE_GATE with clock rate protection" as it breaks > qcom clk code.
Here is a reminder of what I found at the time (so you don't to dig in your mailbox for it)
Regressions reported by Kci on the following platforms: * qcom-apq8064-cm-qs600 * qcom-apq8064-ifc6410
it seems the problem is coming from the clock used by the mmc driver (drivers/mmc/host/mmci.c)
the driver does following sequence: * get_clk * prepare_enable * get_rate * set_rate * ...
with clock SDCx_clk (qcom_apq8064.dtsi:1037). This clock has CLK_SET_RATE_PARENT flag so it will transmit the request to its parent. The parent of this clock is SDCx_src which has the CLK_SET_RATE_GATE flag.
> > Stephen, do you plan to fix up the qcom clock code so that the > SET_RATE_GATE improvement can go in? > > Thanks, > Mike
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