[U-Boot] [i.MX8MM+CCF 08/41] clk: export mux/divider ops

[Lukasz Majewski]

On Tue, 7 May 2019 13:25:00 +0000
Peng Fan <peng.fan at nxp.com> wrote:

> > Subject: Re: [i.MX8MM+CCF 08/41] clk: export mux/divider ops
> > 
> > On Tue, 30 Apr 2019 10:17:58 +0000
> > Peng Fan <peng.fan at nxp.com> wrote:
> >   
> > > Export mux/divider ops for composite usage
> > >
> > > Signed-off-by: Peng Fan <peng.fan at nxp.com>
> > > ---
> > >  include/linux/clk-provider.h | 1 +
> > >  1 file changed, 1 insertion(+)
> > >
> > > diff --git a/include/linux/clk-provider.h
> > > b/include/linux/clk-provider.h index 216095d28c..a60cf6e833 100644
> > > --- a/include/linux/clk-provider.h
> > > +++ b/include/linux/clk-provider.h
> > > @@ -83,6 +83,7 @@ struct clk_divider {
> > >  #define CLK_DIVIDER_ROUND_CLOSEST	BIT(4)
> > >  #define CLK_DIVIDER_READ_ONLY		BIT(5)
> > >  #define CLK_DIVIDER_MAX_AT_ZERO		BIT(6)
> > > +extern const struct clk_ops clk_divider_ops;
> > >  
> > 
> > Why do we need to export clk_divider_ops? Why iMX8MM requires it?  
> 
> 
> The composite driver will use that to set ops for divider clk inside
> composite clk.

Please then write a detailed rationale for this change in commit
message or a comment in the header file.

The one from the original message seems to be not enough.
 

> The Linux CCF also exports it.
> 
> You could check the clk-composite-imx8m and clk-composite driver in
> this patchset.
> 
> Regards,
> Peng.
> 
> >   
> > >  struct clk_fixed_factor {
> > >  	struct clk	clk;  
> > 
> > 
> > 
> > 
> > Best regards,
> > 
> > Lukasz Majewski
> > 
> > --
> > 
> > DENX Software Engineering GmbH,      Managing Director: Wolfgang
> > Denk HRB 165235 Munich, Office: Kirchenstr.5, D-82194 Groebenzell,
> > Germany Phone: (+49)-8142-66989-59 Fax: (+49)-8142-66989-80 Email:
> > lukma at denx.de  




Best regards,

Lukasz Majewski

--

DENX Software Engineering GmbH,      Managing Director: Wolfgang Denk
HRB 165235 Munich, Office: Kirchenstr.5, D-82194 Groebenzell, Germany
Phone: (+49)-8142-66989-59 Fax: (+49)-8142-66989-80 Email: lukma at denx.de
-------------- next part --------------
A non-text attachment was scrubbed...
Name: not available
Type: application/pgp-signature
Size: 488 bytes
Desc: OpenPGP digital signature
URL: <http://lists.denx.de/pipermail/u-boot/attachments/20190508/f1faeca8/attachment.sig>