[PATCH V3] clk: imx8m: fix bus critical clk registration

Peng Fan peng.fan at nxp.com
Mon Nov 2 20:03:44 EST 2020


Shawn,

> Subject: Re: [PATCH V3] clk: imx8m: fix bus critical clk registration
> 
> On Sun, Nov 01, 2020 at 07:23:54PM +0800, peng.fan at nxp.com wrote:
> > From: Peng Fan <peng.fan at nxp.com>
> >
> > noc/axi/ahb are bus clk, not peripheral clk.
> > Since peripheral clk has a limitation that for peripheral clock slice,
> > IP clock slices must be stopped to change the clock source.
> >
> > However if the bus clk is marked as critical clk peripheral, the
> > assigned clock parent operation will fail.
> >
> > So we added CLK_SET_PARENT_GATE flag to avoid glitch.
> >
> > And add imx8m_clk_hw_composite_bus_critical for bus critical clock
> > usage
> >
> > Fixes: 936c383673b9e ("clk: imx: fix composite peripheral flags")
> > Reviewed-by: Abel Vesa <abel.vesa at nxp.com>
> > Reported-by: Abel Vesa <abel.vesa at nxp.com>
> > Signed-off-by: Peng Fan <peng.fan at nxp.com>
> 
> Do you want this be picked up as a fix for 5.10-rc or non-critical stuff for
> -next?

Please take this as a fix for 5.10-rc.

Thanks,
Peng.

> 
> Shawn



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