[PATCH v2 4/4] clk: imx: add clock driver for i.MX8MQ CCM

A.s. Dong aisheng.dong at nxp.com
Fri Mar 16 03:29:29 PDT 2018


> -----Original Message-----
> From: Lucas Stach [mailto:l.stach at pengutronix.de]
> Sent: Friday, March 16, 2018 6:10 PM
> To: Sascha Hauer <s.hauer at pengutronix.de>
> Cc: Michael Turquette <mturquette at baylibre.com>; Stephen Boyd
> <sboyd at codeaurora.org>; A.s. Dong <aisheng.dong at nxp.com>;
> devicetree at vger.kernel.org; patchwork-lst at pengutronix.de; Rob Herring
> <robh+dt at kernel.org>; dl-linux-imx <linux-imx at nxp.com>;
> kernel at pengutronix.de; Fabio Estevam <fabio.estevam at nxp.com>; Shawn
> Guo <shawnguo at kernel.org>; linux-clk at vger.kernel.org; linux-arm-
> kernel at lists.infradead.org
> Subject: Re: [PATCH v2 4/4] clk: imx: add clock driver for i.MX8MQ CCM
> 
> Am Donnerstag, den 15.03.2018, 22:33 +0100 schrieb Sascha Hauer:
> > On Thu, Feb 01, 2018 at 06:54:12PM +0100, Lucas Stach wrote:
> > > Add driver for the Clock Control Module found on i.MX8MQ.
> > >
> > > This is largely based on the downstream driver from Anson Huang and
> > > Bai Ping at NXP, with only some small adaptions to mainline from me.
> > >
> > > Signed-off-by: Lucas Stach <l.stach at pengutronix.de>
> >
> > A general thought: The i.MX8M finally has a consistent clock tree. We
> > have for example 70 Peripheral clock slices consisting of a mux, a
> > gate and two dividers, all 70 looking the same.
> > For these it might make sense to create a more complex clock type
> > providing mux, gate and set rate functionality in one clock. This
> > would drastically reduce the number of clocks we have to handle.
> 
> I agree. It seems we are missing the 4.17 merge window with this anyways,
> due to the large number of changes still required and time constraints on my
> side, so a larger rework of the driver might be possible if we target 4.18.
> 

Yes, that would be worth a try.

Thanks for doing it.

Regards
Dong Aisheng

> Regards,
> Lucas


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