lkml.org 
[lkml]   [2020]   [Apr]   [30]   [last100]   RSS Feed
Views: [wrap][no wrap]   [headers]  [forward] 
 
Messages in this thread
/
Date
From
SubjectRe: [PATCH 1/4] clk: sunxi-ng: a10/a20: rewrite init code to a platform driver
On Wed, Apr 29, 2020 at 04:35:10PM +0200, Maxime Ripard wrote:
> Hi,
>
> On Mon, Apr 20, 2020 at 08:32:28PM +0000, Priit Laes wrote:
> > On Mon, Apr 20, 2020 at 02:49:35PM +0200, Maxime Ripard wrote:
> > > On Sat, Apr 18, 2020 at 01:17:27AM +0300, Priit Laes wrote:
> > > > In order to register regmap for sun7i CCU, there needs to be
> > > > a device structure already bound to the CCU device node.
> > > >
> > > > Convert the sun4i/sun7i CCU setup to platform driver to use
> > > > it later as platform device.
> > > >
> > > > Signed-off-by: Priit Laes <plaes@plaes.org>
> > >
> > > You can't relly do that though. We have timers that need those clocks before the
> > > device model is initialized.
> >
> > Ok, I'm somewhat lost now... are these the affected timers on sun7i following:
> > - allwinner,sun4i-a10-timer (timer@1c20c00)
> > - allwinner,sun7i-a20-hstimer (hstimer@1c60000)
>
> Yep
>
> > Any ideas on what approach I could actually use?
>
> I guess you could keep the CLK_OF_DECLARE registration, and then have a
> platform_driver probe and register the regmap?
>

Thanks this did the trick.

> > Also, similar timer dependency would affect then sun6i-a31 and sun9i-a80
> > platforms too...

I didn't check this before, but sun9i-a80 CCU is initialized currently via
platform device. Should it be converted first to clock driver (CLK_OF_DECLARE)?

I have sent out the v2 which contains sun7i/sun6i changes.

>
> Indeed.
>
> Maxime


\
 
 \ /
  Last update: 2020-04-30 08:22    [W:0.063 / U:0.512 seconds]
©2003-2020 Jasper Spaans|hosted at Digital Ocean and TransIP|Read the blog|Advertise on this site