linux-kernel - Re: [PATCH V6 4/6] drm: bridge: samsung-dsim: Select GENERIC_PHY_MIPI

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Date:   Wed, 17 May 2023 15:20:32 +0200
From:   Lucas Stach <l.stach@...gutronix.de>
To:     Adam Ford <aford173@...il.com>
Cc:     dri-devel@...ts.freedesktop.org, Marek Vasut <marex@...x.de>,
        Neil Armstrong <neil.armstrong@...aro.org>,
        Jernej Skrabec <jernej.skrabec@...il.com>,
        Robert Foss <rfoss@...nel.org>,
        Jonas Karlman <jonas@...boo.se>, aford@...conembedded.com,
        Frieder Schrempf <frieder.schrempf@...tron.de>,
        linux-kernel@...r.kernel.org,
        Laurent Pinchart <Laurent.pinchart@...asonboard.com>,
        Andrzej Hajda <andrzej.hajda@...el.com>,
        Chen-Yu Tsai <wenst@...omium.org>,
        Marek Szyprowski <m.szyprowski@...sung.com>,
        Jagan Teki <jagan@...rulasolutions.com>
Subject: Re: [PATCH V6 4/6] drm: bridge: samsung-dsim: Select
 GENERIC_PHY_MIPI_DPHY

Am Mittwoch, dem 17.05.2023 um 08:02 -0500 schrieb Adam Ford:
> On Wed, May 17, 2023 at 7:58 AM Lucas Stach <l.stach@...gutronix.de> wrote:
> > 
> > Am Montag, dem 15.05.2023 um 18:57 -0500 schrieb Adam Ford:
> > > In order to support variable DPHY timings, it's necessary
> > > to enable GENERIC_PHY_MIPI_DPHY so phy_mipi_dphy_get_default_config
> > > can be used to determine the nominal values for a given resolution
> > > and refresh rate.
> > > 
> > I would just squash this one into the patch introducing the dependency.
> 
> I thought Kconfig updates were supposed to be on their own.  Is that
> not correct?
> 
I'm not aware of a general rule for this, but maybe I just missed it.
Personally I would have added this to the patch introducing the
dependency, but I'm also fine with keeping it as a separate patch.

Regards,
Lucas


> adam
> > 
> > Regards,
> > Lucas
> > 
> > > Signed-off-by: Adam Ford <aford173@...il.com>
> > > Tested-by: Frieder Schrempf <frieder.schrempf@...tron.de>
> > > Reviewed-by: Frieder Schrempf <frieder.schrempf@...tron.de>
> > > Tested-by: Chen-Yu Tsai <wenst@...omium.org>
> > > ---
> > >  drivers/gpu/drm/bridge/Kconfig | 1 +
> > >  1 file changed, 1 insertion(+)
> > > 
> > > diff --git a/drivers/gpu/drm/bridge/Kconfig b/drivers/gpu/drm/bridge/Kconfig
> > > index f076a09afac0..82c68b042444 100644
> > > --- a/drivers/gpu/drm/bridge/Kconfig
> > > +++ b/drivers/gpu/drm/bridge/Kconfig
> > > @@ -227,6 +227,7 @@ config DRM_SAMSUNG_DSIM
> > >       select DRM_KMS_HELPER
> > >       select DRM_MIPI_DSI
> > >       select DRM_PANEL_BRIDGE
> > > +     select GENERIC_PHY_MIPI_DPHY
> > >       help
> > >         The Samsung MIPI DSIM bridge controller driver.
> > >         This MIPI DSIM bridge can be found it on Exynos SoCs and
> >