diff mbox

[3/7] drm/exynos: Renaming DP training vswing pre emph defines

Message ID 1407495226-12620-4-git-send-email-sonika.jindal@intel.com (mailing list archive)
State New, archived
Headers show

Commit Message

sonika.jindal@intel.com Aug. 8, 2014, 10:53 a.m. UTC
From: Sonika Jindal <sonika.jindal@intel.com>

Rename the defines to have levels instead of values for vswing and
pre-emph levels as the values may differ in other scenarios like low vswing of
eDP1.4 where the values are different.

Done using following cocci patch for each define:
@@
@@

 # define DP_TRAIN_VOLTAGE_SWING_400     (0 << 0)
+ # define DP_TRAIN_VOLTAGE_SWING_LEVEL_0     (0 << 0)

...

Signed-off-by: Sonika Jindal <sonika.jindal@intel.com>
---
 drivers/gpu/drm/exynos/exynos_dp_core.c |    4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

Comments

Jingoo Han Aug. 28, 2014, 12:55 a.m. UTC | #1
On Friday, August 08, 2014 7:54 PM, Sonika Jindal wrote:
> 
> From: Sonika Jindal <sonika.jindal@intel.com>
> 
> Rename the defines to have levels instead of values for vswing and
> pre-emph levels as the values may differ in other scenarios like low vswing of
> eDP1.4 where the values are different.
> 
> Done using following cocci patch for each define:
> @@
> @@
> 
>  # define DP_TRAIN_VOLTAGE_SWING_400     (0 << 0)
> + # define DP_TRAIN_VOLTAGE_SWING_LEVEL_0     (0 << 0)
> 
> ...
> 
> Signed-off-by: Sonika Jindal <sonika.jindal@intel.com>
> ---
>  drivers/gpu/drm/exynos/exynos_dp_core.c |    4 ++--
>  1 file changed, 2 insertions(+), 2 deletions(-)
> 
> diff --git a/drivers/gpu/drm/exynos/exynos_dp_core.c b/drivers/gpu/drm/exynos/exynos_dp_core.c
> index 4f3c7eb..02602a8 100644
> --- a/drivers/gpu/drm/exynos/exynos_dp_core.c
> +++ b/drivers/gpu/drm/exynos/exynos_dp_core.c
> @@ -329,8 +329,8 @@ static int exynos_dp_link_start(struct exynos_dp_device *dp)
>  		return retval;
> 
>  	for (lane = 0; lane < lane_count; lane++)
> -		buf[lane] = DP_TRAIN_PRE_EMPHASIS_0 |
> -			    DP_TRAIN_VOLTAGE_SWING_400;
> +		buf[lane] = DP_TRAIN_PRE_EMPH_LEVEL_0 |
> +			    DP_TRAIN_VOLTAGE_SWING_LEVEL_0;

NAK!

It makes build error. Please build your patch, before sending the patch.
It is a rule when submitting patches.

Please, fix it as follows.

+		buf[lane] = DP_TRAIN_PRE_EMPHASIS_LEVEL_0|
+			    DP_TRAIN_VOLTAGE_SWING_LEVEL_0;

Best regards,
Jingoo Han

> 
>  	retval = exynos_dp_write_bytes_to_dpcd(dp, DP_TRAINING_LANE0_SET,
>  			lane_count, buf);
> --
> 1.7.10.4
sonika.jindal@intel.com Aug. 28, 2014, 4:32 a.m. UTC | #2
On 8/28/2014 6:25 AM, Jingoo Han wrote:
> On Friday, August 08, 2014 7:54 PM, Sonika Jindal wrote:
>>
>> From: Sonika Jindal <sonika.jindal@intel.com>
>>
>> Rename the defines to have levels instead of values for vswing and
>> pre-emph levels as the values may differ in other scenarios like low vswing of
>> eDP1.4 where the values are different.
>>
>> Done using following cocci patch for each define:
>> @@
>> @@
>>
>>   # define DP_TRAIN_VOLTAGE_SWING_400     (0 << 0)
>> + # define DP_TRAIN_VOLTAGE_SWING_LEVEL_0     (0 << 0)
>>
>> ...
>>
>> Signed-off-by: Sonika Jindal <sonika.jindal@intel.com>
>> ---
>>   drivers/gpu/drm/exynos/exynos_dp_core.c |    4 ++--
>>   1 file changed, 2 insertions(+), 2 deletions(-)
>>
>> diff --git a/drivers/gpu/drm/exynos/exynos_dp_core.c b/drivers/gpu/drm/exynos/exynos_dp_core.c
>> index 4f3c7eb..02602a8 100644
>> --- a/drivers/gpu/drm/exynos/exynos_dp_core.c
>> +++ b/drivers/gpu/drm/exynos/exynos_dp_core.c
>> @@ -329,8 +329,8 @@ static int exynos_dp_link_start(struct exynos_dp_device *dp)
>>   		return retval;
>>
>>   	for (lane = 0; lane < lane_count; lane++)
>> -		buf[lane] = DP_TRAIN_PRE_EMPHASIS_0 |
>> -			    DP_TRAIN_VOLTAGE_SWING_400;
>> +		buf[lane] = DP_TRAIN_PRE_EMPH_LEVEL_0 |
>> +			    DP_TRAIN_VOLTAGE_SWING_LEVEL_0;
>
> NAK!
>
> It makes build error. Please build your patch, before sending the patch.
> It is a rule when submitting patches.
>
> Please, fix it as follows.
>
> +		buf[lane] = DP_TRAIN_PRE_EMPHASIS_LEVEL_0|
> +			    DP_TRAIN_VOLTAGE_SWING_LEVEL_0;
>
I think the first patch which you have taken (which adds new defines) is 
the one from the previous series for the same change. In the second 
version, I have named them as DP_TRAIN_PRE_EMPH_LEVEL_* which was done 
using cocci. Following is from that patch:
  # define DP_TRAIN_PRE_EMPHASIS_0	    (0 << 3)
+# define DP_TRAIN_PRE_EMPH_LEVEL_0		(0 << 3)
  # define DP_TRAIN_PRE_EMPHASIS_3_5	    (1 << 3)
+# define DP_TRAIN_PRE_EMPH_LEVEL_1		(1 << 3)
  # define DP_TRAIN_PRE_EMPHASIS_6	    (2 << 3)
+# define DP_TRAIN_PRE_EMPH_LEVEL_2		(2 << 3)
  # define DP_TRAIN_PRE_EMPHASIS_9_5	    (3 << 3)
+# define DP_TRAIN_PRE_EMPH_LEVEL_3		(3 << 3)
> Best regards,
> Jingoo Han
>
>>
>>   	retval = exynos_dp_write_bytes_to_dpcd(dp, DP_TRAINING_LANE0_SET,
>>   			lane_count, buf);
>> --
>> 1.7.10.4
>
Jingoo Han Aug. 28, 2014, 6:06 a.m. UTC | #3
On Thursday, August 28, 2014 1:33 PM, Sonika Sonika wrote:
> On 8/28/2014 6:25 AM, Jingoo Han wrote:
> > On Friday, August 08, 2014 7:54 PM, Sonika Jindal wrote:
> >>
> >> From: Sonika Jindal <sonika.jindal@intel.com>
> >>
> >> Rename the defines to have levels instead of values for vswing and
> >> pre-emph levels as the values may differ in other scenarios like low vswing of
> >> eDP1.4 where the values are different.
> >>
> >> Done using following cocci patch for each define:
> >> @@
> >> @@
> >>
> >>   # define DP_TRAIN_VOLTAGE_SWING_400     (0 << 0)
> >> + # define DP_TRAIN_VOLTAGE_SWING_LEVEL_0     (0 << 0)
> >>
> >> ...
> >>
> >> Signed-off-by: Sonika Jindal <sonika.jindal@intel.com>
> >> ---
> >>   drivers/gpu/drm/exynos/exynos_dp_core.c |    4 ++--
> >>   1 file changed, 2 insertions(+), 2 deletions(-)
> >>
> >> diff --git a/drivers/gpu/drm/exynos/exynos_dp_core.c b/drivers/gpu/drm/exynos/exynos_dp_core.c
> >> index 4f3c7eb..02602a8 100644
> >> --- a/drivers/gpu/drm/exynos/exynos_dp_core.c
> >> +++ b/drivers/gpu/drm/exynos/exynos_dp_core.c
> >> @@ -329,8 +329,8 @@ static int exynos_dp_link_start(struct exynos_dp_device *dp)
> >>   		return retval;
> >>
> >>   	for (lane = 0; lane < lane_count; lane++)
> >> -		buf[lane] = DP_TRAIN_PRE_EMPHASIS_0 |
> >> -			    DP_TRAIN_VOLTAGE_SWING_400;
> >> +		buf[lane] = DP_TRAIN_PRE_EMPH_LEVEL_0 |
> >> +			    DP_TRAIN_VOLTAGE_SWING_LEVEL_0;
> >
> > NAK!
> >
> > It makes build error. Please build your patch, before sending the patch.
> > It is a rule when submitting patches.
> >
> > Please, fix it as follows.
> >
> > +		buf[lane] = DP_TRAIN_PRE_EMPHASIS_LEVEL_0|
> > +			    DP_TRAIN_VOLTAGE_SWING_LEVEL_0;
> >
> I think the first patch which you have taken (which adds new defines) is
> the one from the previous series for the same change. In the second
> version, I have named them as DP_TRAIN_PRE_EMPH_LEVEL_* which was done
> using cocci. Following is from that patch:

Oh, I see. Sorry for annoying you.
However, how about tagging V2, V3.. into patches? For instance,
'[PATCH V2 3/7] drm/exynos: Renaming DP training vswing pre emph defines'
It will be helpful, in order to prevent the same mistakes happening again.

Also, the patch looks good.
Acked-by: Jingoo Han <jg1.han@samsung.com>

Best regards,
Jingoo Han

>   # define DP_TRAIN_PRE_EMPHASIS_0	    (0 << 3)
> +# define DP_TRAIN_PRE_EMPH_LEVEL_0		(0 << 3)
>   # define DP_TRAIN_PRE_EMPHASIS_3_5	    (1 << 3)
> +# define DP_TRAIN_PRE_EMPH_LEVEL_1		(1 << 3)
>   # define DP_TRAIN_PRE_EMPHASIS_6	    (2 << 3)
> +# define DP_TRAIN_PRE_EMPH_LEVEL_2		(2 << 3)
>   # define DP_TRAIN_PRE_EMPHASIS_9_5	    (3 << 3)
> +# define DP_TRAIN_PRE_EMPH_LEVEL_3		(3 << 3)
> > Best regards,
> > Jingoo Han
> >
> >>
> >>   	retval = exynos_dp_write_bytes_to_dpcd(dp, DP_TRAINING_LANE0_SET,
> >>   			lane_count, buf);
> >> --
> >> 1.7.10.4
> >
sonika.jindal@intel.com Aug. 28, 2014, 6:11 a.m. UTC | #4
On 8/28/2014 11:36 AM, Jingoo Han wrote:
> On Thursday, August 28, 2014 1:33 PM, Sonika Sonika wrote:
>> On 8/28/2014 6:25 AM, Jingoo Han wrote:
>>> On Friday, August 08, 2014 7:54 PM, Sonika Jindal wrote:
>>>>
>>>> From: Sonika Jindal <sonika.jindal@intel.com>
>>>>
>>>> Rename the defines to have levels instead of values for vswing and
>>>> pre-emph levels as the values may differ in other scenarios like low vswing of
>>>> eDP1.4 where the values are different.
>>>>
>>>> Done using following cocci patch for each define:
>>>> @@
>>>> @@
>>>>
>>>>    # define DP_TRAIN_VOLTAGE_SWING_400     (0 << 0)
>>>> + # define DP_TRAIN_VOLTAGE_SWING_LEVEL_0     (0 << 0)
>>>>
>>>> ...
>>>>
>>>> Signed-off-by: Sonika Jindal <sonika.jindal@intel.com>
>>>> ---
>>>>    drivers/gpu/drm/exynos/exynos_dp_core.c |    4 ++--
>>>>    1 file changed, 2 insertions(+), 2 deletions(-)
>>>>
>>>> diff --git a/drivers/gpu/drm/exynos/exynos_dp_core.c b/drivers/gpu/drm/exynos/exynos_dp_core.c
>>>> index 4f3c7eb..02602a8 100644
>>>> --- a/drivers/gpu/drm/exynos/exynos_dp_core.c
>>>> +++ b/drivers/gpu/drm/exynos/exynos_dp_core.c
>>>> @@ -329,8 +329,8 @@ static int exynos_dp_link_start(struct exynos_dp_device *dp)
>>>>    		return retval;
>>>>
>>>>    	for (lane = 0; lane < lane_count; lane++)
>>>> -		buf[lane] = DP_TRAIN_PRE_EMPHASIS_0 |
>>>> -			    DP_TRAIN_VOLTAGE_SWING_400;
>>>> +		buf[lane] = DP_TRAIN_PRE_EMPH_LEVEL_0 |
>>>> +			    DP_TRAIN_VOLTAGE_SWING_LEVEL_0;
>>>
>>> NAK!
>>>
>>> It makes build error. Please build your patch, before sending the patch.
>>> It is a rule when submitting patches.
>>>
>>> Please, fix it as follows.
>>>
>>> +		buf[lane] = DP_TRAIN_PRE_EMPHASIS_LEVEL_0|
>>> +			    DP_TRAIN_VOLTAGE_SWING_LEVEL_0;
>>>
>> I think the first patch which you have taken (which adds new defines) is
>> the one from the previous series for the same change. In the second
>> version, I have named them as DP_TRAIN_PRE_EMPH_LEVEL_* which was done
>> using cocci. Following is from that patch:
>
> Oh, I see. Sorry for annoying you.
> However, how about tagging V2, V3.. into patches? For instance,
> '[PATCH V2 3/7] drm/exynos: Renaming DP training vswing pre emph defines'
> It will be helpful, in order to prevent the same mistakes happening again.
>
Actually I had bumped the version in the cover letter. Because last time 
I had changed the version of all the patches (for some other feature), 
somebody asked me to just change the version at the top when it is a series.
Also, this was a different patch altogether done using cocci, so thought 
it should be fine. Will take care next time :)
Thanks,
Sonika
> Also, the patch looks good.
> Acked-by: Jingoo Han <jg1.han@samsung.com>
>
> Best regards,
> Jingoo Han
>
>>    # define DP_TRAIN_PRE_EMPHASIS_0	    (0 << 3)
>> +# define DP_TRAIN_PRE_EMPH_LEVEL_0		(0 << 3)
>>    # define DP_TRAIN_PRE_EMPHASIS_3_5	    (1 << 3)
>> +# define DP_TRAIN_PRE_EMPH_LEVEL_1		(1 << 3)
>>    # define DP_TRAIN_PRE_EMPHASIS_6	    (2 << 3)
>> +# define DP_TRAIN_PRE_EMPH_LEVEL_2		(2 << 3)
>>    # define DP_TRAIN_PRE_EMPHASIS_9_5	    (3 << 3)
>> +# define DP_TRAIN_PRE_EMPH_LEVEL_3		(3 << 3)
>>> Best regards,
>>> Jingoo Han
>>>
>>>>
>>>>    	retval = exynos_dp_write_bytes_to_dpcd(dp, DP_TRAINING_LANE0_SET,
>>>>    			lane_count, buf);
>>>> --
>>>> 1.7.10.4
>>>
>
diff mbox

Patch

diff --git a/drivers/gpu/drm/exynos/exynos_dp_core.c b/drivers/gpu/drm/exynos/exynos_dp_core.c
index 4f3c7eb..02602a8 100644
--- a/drivers/gpu/drm/exynos/exynos_dp_core.c
+++ b/drivers/gpu/drm/exynos/exynos_dp_core.c
@@ -329,8 +329,8 @@  static int exynos_dp_link_start(struct exynos_dp_device *dp)
 		return retval;
 
 	for (lane = 0; lane < lane_count; lane++)
-		buf[lane] = DP_TRAIN_PRE_EMPHASIS_0 |
-			    DP_TRAIN_VOLTAGE_SWING_400;
+		buf[lane] = DP_TRAIN_PRE_EMPH_LEVEL_0 |
+			    DP_TRAIN_VOLTAGE_SWING_LEVEL_0;
 
 	retval = exynos_dp_write_bytes_to_dpcd(dp, DP_TRAINING_LANE0_SET,
 			lane_count, buf);