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From:   Jernej =?utf-8?B?xaBrcmFiZWM=?= <jernej.skrabec@gmail.com>
To:     Maxime Ripard <maxime@cerno.tech>
Cc:     Ben Skeggs <bskeggs@redhat.com>, David Airlie <airlied@linux.ie>,
        Chen-Yu Tsai <wens@csie.org>,
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Subject: Re: Re: [PATCH v2 36/41] drm/sun4i: tv: Merge mode_set into atomic_enable
Date:   Wed, 07 Sep 2022 17:09:04 +0200
Message-ID: <4210281.ejJDZkT8p0@kista>
In-Reply-To: <20220907074134.36yysxrnnpty4ngw@houat>
References: <20220728-rpi-analog-tv-properties-v2-0-459522d653a7@cerno.tech> <10138422.nUPlyArG6x@kista> <20220907074134.36yysxrnnpty4ngw@houat>
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Dne sreda, 07. september 2022 ob 09:41:34 CEST je Maxime Ripard napisal(a):
> On Tue, Sep 06, 2022 at 10:04:32PM +0200, Jernej =C5=A0krabec wrote:
> > Dne ponedeljek, 29. avgust 2022 ob 15:11:50 CEST je Maxime Ripard=20
napisal(a):
> > > Our mode_set implementation can be merged into our atomic_enable
> > > implementation to simplify things, so let's do this.
> >=20
> > Are you sure this is a good thing in long term? What if user wants to
> > change mode? Unlikely, but why not.
>=20
> It doesn't change anything feature-wise: whenever the mode is changed on
> the CRTC, the encoder is going to be disabled and enabled.
>=20
> It's disabled here:
> https://elixir.bootlin.com/linux/latest/source/drivers/gpu/drm/drm_atomic=
_he
> lper.c#L1064
>=20
> And enabled here:
> https://elixir.bootlin.com/linux/latest/source/drivers/gpu/drm/drm_atomic=
_he
> lper.c#L1403
>=20
> With drm_atomic_crtc_needs_modeset() being defined here:
> https://elixir.bootlin.com/linux/latest/source/include/drm/drm_atomic.h#L=
104
> 9

Right.

Acked-by: Jernej Skrabec <jernej.skrabec@gmail.com>

Best regards,
Jernej