[PATCH v4 00/20] remove I2C_CLASS_DDC support

[PATCH v4 00/20] remove I2C_CLASS_DDC support

[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.

v2:
- change tag in commit subject of patch 03
- add ack tags
v3:
- fix a compile error in patch 5
v4:
- more ack and review tags

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(-)

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[PATCH v4 01/20] drivers/gpu/drm/rockchip: remove I2C_CLASS_DDC support

[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.

Acked-by: Heiko Stuebner <heiko@sntech.de>
Signed-off-by: Heiner Kallweit <hkallweit1@gmail.com>

---
 drivers/gpu/drm/rockchip/inno_hdmi.c   |    1 -
 drivers/gpu/drm/rockchip/rk3066_hdmi.c |    1 -
 2 files changed, 2 deletions(-)

diff --git a/drivers/gpu/drm/rockchip/inno_hdmi.c b/drivers/gpu/drm/rockchip/inno_hdmi.c
index 6e5b922a1..a7739b27c 100644
--- a/drivers/gpu/drm/rockchip/inno_hdmi.c
+++ b/drivers/gpu/drm/rockchip/inno_hdmi.c
@@ -793,7 +793,6 @@ static struct i2c_adapter *inno_hdmi_i2c_adapter(struct inno_hdmi *hdmi)
 	init_completion(&i2c->cmp);
 
 	adap = &i2c->adap;
-	adap->class = I2C_CLASS_DDC;
 	adap->owner = THIS_MODULE;
 	adap->dev.parent = hdmi->dev;
 	adap->dev.of_node = hdmi->dev->of_node;
diff --git a/drivers/gpu/drm/rockchip/rk3066_hdmi.c b/drivers/gpu/drm/rockchip/rk3066_hdmi.c
index fa6e592e0..7a3f71aa2 100644
--- a/drivers/gpu/drm/rockchip/rk3066_hdmi.c
+++ b/drivers/gpu/drm/rockchip/rk3066_hdmi.c
@@ -725,7 +725,6 @@ static struct i2c_adapter *rk3066_hdmi_i2c_adapter(struct rk3066_hdmi *hdmi)
 	init_completion(&i2c->cmpltn);
 
 	adap = &i2c->adap;
-	adap->class = I2C_CLASS_DDC;
 	adap->owner = THIS_MODULE;
 	adap->dev.parent = hdmi->dev;
 	adap->dev.of_node = hdmi->dev->of_node;


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[PATCH v4 04/20] drivers/gpu/drm/sun4i/sun4i_hdmi_i2c.c: remove I2C_CLASS_DDC support

[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.

Acked-by: Jernej Skrabec <jernej.skrabec@gmail.com>
Signed-off-by: Heiner Kallweit <hkallweit1@gmail.com>

---
 drivers/gpu/drm/sun4i/sun4i_hdmi_i2c.c |    1 -
 1 file changed, 1 deletion(-)

diff --git a/drivers/gpu/drm/sun4i/sun4i_hdmi_i2c.c b/drivers/gpu/drm/sun4i/sun4i_hdmi_i2c.c
index d1a65a921..f5f62eb0e 100644
--- a/drivers/gpu/drm/sun4i/sun4i_hdmi_i2c.c
+++ b/drivers/gpu/drm/sun4i/sun4i_hdmi_i2c.c
@@ -302,7 +302,6 @@ int sun4i_hdmi_i2c_create(struct device *dev, struct sun4i_hdmi *hdmi)
 		return -ENOMEM;
 
 	adap->owner = THIS_MODULE;
-	adap->class = I2C_CLASS_DDC;
 	adap->algo = &sun4i_hdmi_i2c_algorithm;
 	strscpy(adap->name, "sun4i_hdmi_i2c adapter", sizeof(adap->name));
 	i2c_set_adapdata(adap, hdmi);


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[PATCH v4 10/20] drivers/video/fbdev/cyber2000fb.c: remove I2C_CLASS_DDC support

[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.

Acked-by: Helge Deller <deller@gmx.de>
Signed-off-by: Heiner Kallweit <hkallweit1@gmail.com>

---
 drivers/video/fbdev/cyber2000fb.c |    1 -
 1 file changed, 1 deletion(-)

diff --git a/drivers/video/fbdev/cyber2000fb.c b/drivers/video/fbdev/cyber2000fb.c
index 52105dc1a..79775deda 100644
--- a/drivers/video/fbdev/cyber2000fb.c
+++ b/drivers/video/fbdev/cyber2000fb.c
@@ -1234,7 +1234,6 @@ static int cyber2000fb_setup_ddc_bus(struct cfb_info *cfb)
 	strscpy(cfb->ddc_adapter.name, cfb->fb.fix.id,
 		sizeof(cfb->ddc_adapter.name));
 	cfb->ddc_adapter.owner		= THIS_MODULE;
-	cfb->ddc_adapter.class		= I2C_CLASS_DDC;
 	cfb->ddc_adapter.algo_data	= &cfb->ddc_algo;
 	cfb->ddc_adapter.dev.parent	= cfb->fb.device;
 	cfb->ddc_algo.setsda		= cyber2000fb_ddc_setsda;


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[PATCH v4 12/20] drivers/gpu/drm/mediatek/mtk_hdmi_ddc.c: remove I2C_CLASS_DDC support

[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.

Reviewed-by: AngeloGioacchino Del Regno <angelogioacchino.delregno@collabora.com>
Signed-off-by: Heiner Kallweit <hkallweit1@gmail.com>

---
 drivers/gpu/drm/mediatek/mtk_hdmi_ddc.c |    1 -
 1 file changed, 1 deletion(-)

diff --git a/drivers/gpu/drm/mediatek/mtk_hdmi_ddc.c b/drivers/gpu/drm/mediatek/mtk_hdmi_ddc.c
index d675c954b..54e46e440 100644
--- a/drivers/gpu/drm/mediatek/mtk_hdmi_ddc.c
+++ b/drivers/gpu/drm/mediatek/mtk_hdmi_ddc.c
@@ -297,7 +297,6 @@ static int mtk_hdmi_ddc_probe(struct platform_device *pdev)
 
 	strscpy(ddc->adap.name, "mediatek-hdmi-ddc", sizeof(ddc->adap.name));
 	ddc->adap.owner = THIS_MODULE;
-	ddc->adap.class = I2C_CLASS_DDC;
 	ddc->adap.algo = &mtk_hdmi_ddc_algorithm;
 	ddc->adap.retries = 3;
 	ddc->adap.dev.of_node = dev->of_node;


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Re: [Intel-gfx] [PATCH v4 00/20] remove I2C_CLASS_DDC support

[Jani Nikula]

On Mon, 20 Nov 2023, Heiner Kallweit <hkallweit1@gmail.com> wrote:
> v4:
> - more ack and review tags

Please do not send new versions just to record the acks and
reviews. They should be added while applying the patches.

Thanks,
Jani.

-- 
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Re: [Intel-gfx] [PATCH v4 00/20] remove I2C_CLASS_DDC support

[Heiner Kallweit]

On 21.11.2023 09:58, Jani Nikula wrote:
> On Mon, 20 Nov 2023, Heiner Kallweit <hkallweit1@gmail.com> wrote:
>> v4:
>> - more ack and review tags
> 
> Please do not send new versions just to record the acks and
> reviews. They should be added while applying the patches.
> 
Right, typically also patchwork interprets and shows A-b and R-b when
sent as a reply to a patch of the series. I sent a new version because
an A-b covered multiple patches and was sent as reply to the cover letter.

> Thanks,
> Jani.
> 
Heiner

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Re: [PATCH v4 00/20] remove I2C_CLASS_DDC support

[Thomas Zimmermann]

[-- Attachment #1.1.1: Type: text/plain, Size: 3059 bytes --]

Hi

Am 20.11.23 um 22:46 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.
> 
> v2:
> - change tag in commit subject of patch 03
> - add ack tags
> v3:
> - fix a compile error in patch 5
> v4:
> - more ack and review tags
> 
> Signed-off-by: Heiner Kallweit <hkallweit1@gmail.com>

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

for the patches that don't already have my r-b.

Best regards
Thomas

> 
> ---
> 
>   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(-)

-- 
Thomas Zimmermann
Graphics Driver Developer
SUSE Software Solutions Germany GmbH
Frankenstrasse 146, 90461 Nuernberg, Germany
GF: Ivo Totev, Andrew Myers, Andrew McDonald, Boudien Moerman
HRB 36809 (AG Nuernberg)

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Re: [PATCH v4 00/20] remove I2C_CLASS_DDC support

[Heiner Kallweit]

On 23.11.2023 07:56, Thomas Zimmermann wrote:
> Hi
> 
> Am 20.11.23 um 22:46 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.
>>
>> v2:
>> - change tag in commit subject of patch 03
>> - add ack tags
>> v3:
>> - fix a compile error in patch 5
>> v4:
>> - more ack and review tags
>>
>> Signed-off-by: Heiner Kallweit <hkallweit1@gmail.com>
> 
> Acked-by: Thomas Zimmermann <tzimmermann@suse.de>
> 
> for the patches that don't already have my r-b.
> 
This refers to which patches of the series?
Patches 8, 16, 18 are the remaining ones w/o A-b or R-b.

> Best regards
> Thomas
> 
Thanks, Heiner

>>
>> ---
>>
>>   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(-)
> 


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Re: [PATCH v4 00/20] remove I2C_CLASS_DDC support

[Thomas Zimmermann]

[-- Attachment #1.1.1: Type: text/plain, Size: 4185 bytes --]

Hi

Am 23.11.23 um 08:16 schrieb Heiner Kallweit:
> On 23.11.2023 07:56, Thomas Zimmermann wrote:
>> Hi
>>
>> Am 20.11.23 um 22:46 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.
>>>
>>> v2:
>>> - change tag in commit subject of patch 03
>>> - add ack tags
>>> v3:
>>> - fix a compile error in patch 5
>>> v4:
>>> - more ack and review tags
>>>
>>> Signed-off-by: Heiner Kallweit <hkallweit1@gmail.com>
>>
>> Acked-by: Thomas Zimmermann <tzimmermann@suse.de>
>>
>> for the patches that don't already have my r-b.
>>
> This refers to which patches of the series?
> Patches 8, 16, 18 are the remaining ones w/o A-b or R-b.

I've looked through the patchset. Feel free to add my a-b to patches 1 
to 19; except for 2 and 17, which already have my r-b.

BTW I only received 19 patches. is there a patch 20/20?

Best regards
Thomas

> 
>> Best regards
>> Thomas
>>
> Thanks, Heiner
> 
>>>
>>> ---
>>>
>>>    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(-)
>>
> 

-- 
Thomas Zimmermann
Graphics Driver Developer
SUSE Software Solutions Germany GmbH
Frankenstrasse 146, 90461 Nuernberg, Germany
GF: Ivo Totev, Andrew Myers, Andrew McDonald, Boudien Moerman
HRB 36809 (AG Nuernberg)

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Re: [PATCH v4 00/20] remove I2C_CLASS_DDC support

[Heiner Kallweit]

On 23.11.2023 09:19, Thomas Zimmermann wrote:
> Hi
> 
> Am 23.11.23 um 08:16 schrieb Heiner Kallweit:
>> On 23.11.2023 07:56, Thomas Zimmermann wrote:
>>> Hi
>>>
>>> Am 20.11.23 um 22:46 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.
>>>>
>>>> v2:
>>>> - change tag in commit subject of patch 03
>>>> - add ack tags
>>>> v3:
>>>> - fix a compile error in patch 5
>>>> v4:
>>>> - more ack and review tags
>>>>
>>>> Signed-off-by: Heiner Kallweit <hkallweit1@gmail.com>
>>>
>>> Acked-by: Thomas Zimmermann <tzimmermann@suse.de>
>>>
>>> for the patches that don't already have my r-b.
>>>
>> This refers to which patches of the series?
>> Patches 8, 16, 18 are the remaining ones w/o A-b or R-b.
> 
> I've looked through the patchset. Feel free to add my a-b to patches 1 to 19; except for 2 and 17, which already have my r-b.
> 
> BTW I only received 19 patches. is there a patch 20/20?
> 
Yes, see here:
https://patchwork.ozlabs.org/project/linux-i2c/patch/20231120214624.9378-21-hkallweit1@gmail.com/
If you're subscribed to linux-i2c or linux-kernel list you should have received it.

> Best regards
> Thomas
> 
>>
>>> Best regards
>>> Thomas
>>>
>> Thanks, Heiner
>>
>>>>
>>>> ---
>>>>
>>>>    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(-)
>>>
>>
> 


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Re: [PATCH v4 00/20] remove I2C_CLASS_DDC support

[Thomas Zimmermann]

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Hi

Am 23.11.23 um 09:34 schrieb Heiner Kallweit:
> On 23.11.2023 09:19, Thomas Zimmermann wrote:
>> Hi
>>
>> Am 23.11.23 um 08:16 schrieb Heiner Kallweit:
>>> On 23.11.2023 07:56, Thomas Zimmermann wrote:
>>>> Hi
>>>>
>>>> Am 20.11.23 um 22:46 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.
>>>>>
>>>>> v2:
>>>>> - change tag in commit subject of patch 03
>>>>> - add ack tags
>>>>> v3:
>>>>> - fix a compile error in patch 5
>>>>> v4:
>>>>> - more ack and review tags
>>>>>
>>>>> Signed-off-by: Heiner Kallweit <hkallweit1@gmail.com>
>>>>
>>>> Acked-by: Thomas Zimmermann <tzimmermann@suse.de>
>>>>
>>>> for the patches that don't already have my r-b.
>>>>
>>> This refers to which patches of the series?
>>> Patches 8, 16, 18 are the remaining ones w/o A-b or R-b.
>>
>> I've looked through the patchset. Feel free to add my a-b to patches 1 to 19; except for 2 and 17, which already have my r-b.
>>
>> BTW I only received 19 patches. is there a patch 20/20?
>>
> Yes, see here:
> https://patchwork.ozlabs.org/project/linux-i2c/patch/20231120214624.9378-21-hkallweit1@gmail.com/
> If you're subscribed to linux-i2c or linux-kernel list you should have received it.

I see, I'm not on these lists. I don't have the authority to ack that 
final patch, but let me know if you want to merge anything through the 
DRM trees.

Best regards
Thomas

> 
>> Best regards
>> Thomas
>>
>>>
>>>> Best regards
>>>> Thomas
>>>>
>>> Thanks, Heiner
>>>
>>>>>
>>>>> ---
>>>>>
>>>>>     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(-)
>>>>
>>>
>>
> 

-- 
Thomas Zimmermann
Graphics Driver Developer
SUSE Software Solutions Germany GmbH
Frankenstrasse 146, 90461 Nuernberg, Germany
GF: Ivo Totev, Andrew Myers, Andrew McDonald, Boudien Moerman
HRB 36809 (AG Nuernberg)

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