linux-kernel - Re: [PATCH 03/20] drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm.c: remove I2C_CLASS

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Message-ID: <CADnq5_NjZkGLz-J39h_6djdgaD8zT3_pEq4iy5FfcYTz646SFg@mail.gmail.com>
Date:   Thu, 16 Nov 2023 14:18:23 -0500
From:   Alex Deucher <alexdeucher@...il.com>
To:     Harry Wentland <harry.wentland@....com>
Cc:     Heiner Kallweit <hkallweit1@...il.com>,
        Wolfram Sang <wsa@...nel.org>, Leo Li <sunpeng.li@....com>,
        dri-devel@...ts.freedesktop.org,
        "Pan, Xinhui" <Xinhui.Pan@....com>,
        Rodrigo Siqueira <Rodrigo.Siqueira@....com>,
        linux-kernel@...r.kernel.org, amd-gfx@...ts.freedesktop.org,
        linux-i2c@...r.kernel.org, Daniel Vetter <daniel@...ll.ch>,
        Alex Deucher <alexander.deucher@....com>,
        David Airlie <airlied@...il.com>,
        Christian König <christian.koenig@....com>
Subject: Re: [PATCH 03/20] drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm.c:
 remove I2C_CLASS_DDC support

On Mon, Nov 13, 2023 at 12:50 PM Harry Wentland <harry.wentland@....com> wrote:
>
> Please just use "drm/amd/display:" as tag in the commit subject.
>
> With that fixed, this is
> Acked-by: Harry Wentland <harry.wentland@....com>
>

Acked-by: Alex Deucher <alexander.deucher@....com>
Feel free to take this via the i2c tree if you prefer.

Alex

> Harry
>
> On 2023-11-13 06:23, Heiner Kallweit wrote:
> > After removal of the legacy EEPROM driver and I2C_CLASS_DDC support in
> > olpc_dcon there's no i2c client driver left supporting I2C_CLASS_DDC.
> > Class-based device auto-detection is a legacy mechanism and shouldn't
> > be used in new code. So we can remove this class completely now.
> >
> > Preferably this series should be applied via the i2c tree.
> >
> > Signed-off-by: Heiner Kallweit <hkallweit1@...il.com>
> >
> > ---
> >  drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm.c |    1 -
> >  1 file changed, 1 deletion(-)
> >
> > diff --git a/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm.c b/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm.c
> > index 6f99f6754..ae1edc6ab 100644
> > --- a/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm.c
> > +++ b/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm.c
> > @@ -7529,7 +7529,6 @@ create_i2c(struct ddc_service *ddc_service,
> >       if (!i2c)
> >               return NULL;
> >       i2c->base.owner = THIS_MODULE;
> > -     i2c->base.class = I2C_CLASS_DDC;
> >       i2c->base.dev.parent = &adev->pdev->dev;
> >       i2c->base.algo = &amdgpu_dm_i2c_algo;
> >       snprintf(i2c->base.name, sizeof(i2c->base.name), "AMDGPU DM i2c hw bus %d", link_index);
> >
>