mbox series

[00/20] remove I2C_CLASS_DDC support

Message ID 20231119101445.4737-1-hkallweit1@gmail.com
Headers show
Series remove I2C_CLASS_DDC support | expand

Message

Heiner Kallweit Nov. 19, 2023, 10:14 a.m. UTC
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@gmail.com>

---

 drivers/gpu/drm/amd/amdgpu/amdgpu_i2c.c           |    1 -
 drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm.c |    1 -
 drivers/gpu/drm/ast/ast_i2c.c                     |    1 -
 drivers/gpu/drm/bridge/synopsys/dw-hdmi.c         |    1 -
 drivers/gpu/drm/display/drm_dp_helper.c           |    1 -
 drivers/gpu/drm/display/drm_dp_mst_topology.c     |    1 -
 drivers/gpu/drm/gma500/cdv_intel_dp.c             |    1 -
 drivers/gpu/drm/gma500/intel_gmbus.c              |    1 -
 drivers/gpu/drm/gma500/oaktrail_hdmi_i2c.c        |    1 -
 drivers/gpu/drm/gma500/psb_intel_sdvo.c           |    1 -
 drivers/gpu/drm/hisilicon/hibmc/hibmc_drm_i2c.c   |    1 -
 drivers/gpu/drm/i915/display/intel_gmbus.c        |    1 -
 drivers/gpu/drm/i915/display/intel_sdvo.c         |    1 -
 drivers/gpu/drm/loongson/lsdc_i2c.c               |    1 -
 drivers/gpu/drm/mediatek/mtk_hdmi_ddc.c           |    1 -
 drivers/gpu/drm/mgag200/mgag200_i2c.c             |    1 -
 drivers/gpu/drm/msm/hdmi/hdmi_i2c.c               |    1 -
 drivers/gpu/drm/radeon/radeon_i2c.c               |    1 -
 drivers/gpu/drm/rockchip/inno_hdmi.c              |    1 -
 drivers/gpu/drm/rockchip/rk3066_hdmi.c            |    1 -
 drivers/gpu/drm/sun4i/sun4i_hdmi_i2c.c            |    1 -
 drivers/video/fbdev/core/fb_ddc.c                 |    1 -
 drivers/video/fbdev/cyber2000fb.c                 |    1 -
 drivers/video/fbdev/i740fb.c                      |    1 -
 drivers/video/fbdev/intelfb/intelfb_i2c.c         |   15 +++++----------
 drivers/video/fbdev/matrox/i2c-matroxfb.c         |   12 ++++--------
 drivers/video/fbdev/s3fb.c                        |    1 -
 drivers/video/fbdev/tdfxfb.c                      |    1 -
 drivers/video/fbdev/tridentfb.c                   |    1 -
 drivers/video/fbdev/via/via_i2c.c                 |    1 -
 include/linux/i2c.h                               |    1 -
 31 files changed, 9 insertions(+), 47 deletions(-)

Comments

Thomas Zimmermann Nov. 20, 2023, 11:35 a.m. UTC | #1
Am 19.11.23 um 11:14 schrieb Heiner Kallweit:
> 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@gmail.com>

Reviewed-by: Thomas Zimmermann <tzimmermann@suse.de>

> 
> ---
>   drivers/gpu/drm/ast/ast_i2c.c |    1 -
>   1 file changed, 1 deletion(-)
> 
> diff --git a/drivers/gpu/drm/ast/ast_i2c.c b/drivers/gpu/drm/ast/ast_i2c.c
> index 0e845e7ac..e5d3f7121 100644
> --- a/drivers/gpu/drm/ast/ast_i2c.c
> +++ b/drivers/gpu/drm/ast/ast_i2c.c
> @@ -120,7 +120,6 @@ struct ast_i2c_chan *ast_i2c_create(struct drm_device *dev)
>   		return NULL;
>   
>   	i2c->adapter.owner = THIS_MODULE;
> -	i2c->adapter.class = I2C_CLASS_DDC;
>   	i2c->adapter.dev.parent = dev->dev;
>   	i2c->dev = dev;
>   	i2c_set_adapdata(&i2c->adapter, i2c);
>