[PATCH] ARM: dts: koelsch: Correct clock frequency of X2 DU clock input

[Niklas Söderlund]

Hi Geert,

On 2017-04-04 12:31:39 +0200, Geert Uytterhoeven wrote:
> Hi Laurent,
> 
> On Tue, Apr 4, 2017 at 12:05 PM, Laurent Pinchart
> <laurent.pinchart at ideasonboard.com> wrote:
> > On Monday 03 Apr 2017 11:55:19 Geert Uytterhoeven wrote:
> >> The X2 crystal oscillator on the Koelsch development board provides a
> >> 74.25 MHz clock, not a 148.5 MHz clock.
> >>
> >> Fixes: cd21cb46e14aae3a ("ARM: shmobile: koelsch: Add DU external pixel
> >> clocks to DT") Signed-off-by: Geert Uytterhoeven <geert+renesas at glider.be>
> >> ---
> >> Confirmed by schematics, user manual, and physical inspection of 2
> >> Koelsch instances (my scope has not enough bandwidth to measure the
> >> actual frequency).
> >
> > Stupid question, have you tested the corresponding (HDMI) DU output ? If so,
> 
> No I haven't.
> 
> Niklas, can you please fire up your display? Thanks!

Console during boot works and

modetest -M rcar-du -s 46:1920x1080-60Hz
modetest -M rcar-du -s 46:1280x720-60Hz
modetest -M rcar-du -s 46:720x480-60Hz

Produce stable test patterns.

Tested-by: Niklas Söderlund <niklas.soderlund+renesas at ragnatech.se>

> 
> > Acked-by: Laurent Pinchart <laurent.pinchart at ideasonboard.com>
> 
> Thanks ;-)
> 
> Gr{oetje,eeting}s,
> 
>                         Geert
> 
> --
> Geert Uytterhoeven -- There's lots of Linux beyond ia32 -- geert at linux-m68k.org
> 
> In personal conversations with technical people, I call myself a hacker. But
> when I'm talking to journalists I just say "programmer" or something like that.
>                                 -- Linus Torvalds

-- 
Regards,
Niklas Söderlund