[PATCH 04/13] drm/exynos: use empty function instead of drm_helper_connector_dpms

[InKi Dae]

2012/8/20 Joonyoung Shim <jy0922.shim at samsung.com>:
> On 08/17/2012 06:50 PM, Inki Dae wrote:
>>
>> crtc and encoder's dpms callback will be called before connector's dpms
>> is called so drm_helper_connector_dpms doesn't need to be called.
>
>
> I can't understand this description. I know crtc and encoder dpms are called
> by drm_helper_connector_dpms.
>

Ah, right. there is my missing point. for pm, we need
drm_helper_connector_dpms call. actually, this patch is for avoiding
duplicated call of mode_set but I didn't consider pm.

Thanks.

>
>> Signed-off-by: Inki Dae <inki.dae at samsung.com>
>> Signed-off-by: Kyungmin Park <kyungmin.park at samsung.com>
>> ---
>>   drivers/gpu/drm/exynos/exynos_drm_connector.c |    9 ++++++++-
>>   1 files changed, 8 insertions(+), 1 deletions(-)
>>
>> diff --git a/drivers/gpu/drm/exynos/exynos_drm_connector.c
>> b/drivers/gpu/drm/exynos/exynos_drm_connector.c
>> index d956819..65acf0d 100644
>> --- a/drivers/gpu/drm/exynos/exynos_drm_connector.c
>> +++ b/drivers/gpu/drm/exynos/exynos_drm_connector.c
>> @@ -226,6 +226,13 @@ static struct drm_connector_helper_funcs
>> exynos_connector_helper_funcs = {
>>         .best_encoder   = exynos_drm_best_encoder,
>>   };
>>   +static void exynos_drm_connector_dpms(struct drm_connector *connector,
>> int mode)
>> +{
>> +       DRM_DEBUG_KMS("%s\n", __FILE__);
>> +
>> +       /* drm framework doesn't check NULL. */
>> +}
>> +
>>   static int exynos_drm_connector_fill_modes(struct drm_connector
>> *connector,
>>                                 unsigned int max_width, unsigned int
>> max_height)
>>   {
>> @@ -285,7 +292,7 @@ static void exynos_drm_connector_destroy(struct
>> drm_connector *connector)
>>   }
>>     static struct drm_connector_funcs exynos_connector_funcs = {
>> -       .dpms           = drm_helper_connector_dpms,
>> +       .dpms           = exynos_drm_connector_dpms,
>>         .fill_modes     = exynos_drm_connector_fill_modes,
>>         .detect         = exynos_drm_connector_detect,
>>         .destroy        = exynos_drm_connector_destroy,
>
>
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