Re: [PATCH 0/2] pwm: mtk-disp: Fix backlight configuration at boot

[AngeloGioacchino Del Regno]

Il 23/02/23 15:16, AngeloGioacchino Del Regno ha scritto:
> Il 23/01/23 17:06, AngeloGioacchino Del Regno ha scritto:
> > Since the pwm-mtk-disp driver was fixed to get PWM_EN state from the
> > right register, an old two-wrongs-make-one-right issue emerged: as a
> > result, MT8192 Asurada Spherion got no backlight at boot unless a
> > suspend/resume cycle was performed.
> > Also, the backlight would sometimes not get updated with the requested
> > value, requiring the user to change it back and forth until it worked.
> >
> > This series fixes both of the aforementioned issues found on MT8192.
> >
> > AngeloGioacchino Del Regno (2):
> >    pwm: mtk-disp: Disable shadow registers before setting backlight
> >      values
> >    pwm: mtk-disp: Configure double buffering before reading in
> >      .get_state()
> >
> >   drivers/pwm/pwm-mtk-disp.c | 34 +++++++++++++++++++++++-----------
> >   1 file changed, 23 insertions(+), 11 deletions(-)
>
> Gentle ping for this one: this is fixing backlight issues on multiple MediaTek
> SoCs and was well tested.
>
> Thanks,
> Angelo

Since this series was sent more than one month ago, and since this fixes broken
backlight on a number of Chromebooks with MT8183 and MT8192 SoCs, and seen the
urgency of getting these fixes in, I'm adding Greg to the loop.

Regards,
Angelo