Re: [PATCH 07/12] drm: drm_display_mode: add signal polarity flags

2014-03-18 Thread Lothar Waßmann
Hi, Laurent Pinchart wrote: Hi Lothar, On Monday 17 March 2014 16:14:36 Lothar Waßmann wrote: Laurent Pinchart wrote: On Monday 17 March 2014 14:41:09 Andrzej Hajda wrote: On 03/13/2014 06:17 PM, Denis Carikli wrote: We need a way to pass signal polarity informations

Re: [PATCH 07/12] drm: drm_display_mode: add signal polarity flags

2014-03-18 Thread Russell King - ARM Linux
On Tue, Mar 18, 2014 at 08:50:30AM +0100, Lothar Waßmann wrote: Hi, Laurent Pinchart wrote: Hi Lothar, On Monday 17 March 2014 16:14:36 Lothar Waßmann wrote: DE is not a clock signal, but an 'Enable' signal whose value (high or low) defines the window in which the pixel data is

Re: [PATCH 07/12] drm: drm_display_mode: add signal polarity flags

2014-03-18 Thread Laurent Pinchart
Hi Lothar, On Tuesday 18 March 2014 08:50:30 Lothar Waßmann wrote: Laurent Pinchart wrote: On Monday 17 March 2014 16:14:36 Lothar Waßmann wrote: Laurent Pinchart wrote: On Monday 17 March 2014 14:41:09 Andrzej Hajda wrote: On 03/13/2014 06:17 PM, Denis Carikli wrote: We need

Re: [PATCH 07/12] drm: drm_display_mode: add signal polarity flags

2014-03-18 Thread Russell King - ARM Linux
On Tue, Mar 18, 2014 at 01:41:54PM +0100, Laurent Pinchart wrote: Hi Lothar, That's not my point. I *know* that DE is a data gating signal with a polarity already defined by the DRM_MODE_FLAG_POL_DE_(LOW|HIGH) flags. Like all other signals it gets generated on a clock edge and is sampled

Re: [PATCH 07/12] drm: drm_display_mode: add signal polarity flags

2014-03-18 Thread Laurent Pinchart
Hi Russell, On Tuesday 18 March 2014 12:56:23 Russell King - ARM Linux wrote: On Tue, Mar 18, 2014 at 01:41:54PM +0100, Laurent Pinchart wrote: Hi Lothar, That's not my point. I *know* that DE is a data gating signal with a polarity already defined by the DRM_MODE_FLAG_POL_DE_(LOW|HIGH)

Re: [PATCH 07/12] drm: drm_display_mode: add signal polarity flags

2014-03-18 Thread Lothar Waßmann
Hi, Laurent Pinchart wrote: Hi Lothar, On Tuesday 18 March 2014 08:50:30 Lothar Waßmann wrote: Laurent Pinchart wrote: On Monday 17 March 2014 16:14:36 Lothar Waßmann wrote: Laurent Pinchart wrote: On Monday 17 March 2014 14:41:09 Andrzej Hajda wrote: On 03/13/2014 06:17

Re: [PATCH 07/12] drm: drm_display_mode: add signal polarity flags

2014-03-17 Thread Andrzej Hajda
Hi Denis, Thanks for the patch. On 03/13/2014 06:17 PM, Denis Carikli wrote: We need a way to pass signal polarity informations between DRM panels, and the display drivers. To do that, a pol_flags field was added to drm_display_mode. Signed-off-by: Denis Carikli de...@eukrea.com ---

Re: [PATCH 07/12] drm: drm_display_mode: add signal polarity flags

2014-03-17 Thread Laurent Pinchart
Hello, On Monday 17 March 2014 14:41:09 Andrzej Hajda wrote: On 03/13/2014 06:17 PM, Denis Carikli wrote: We need a way to pass signal polarity informations between DRM panels, and the display drivers. To do that, a pol_flags field was added to drm_display_mode. Signed-off-by:

Re: [PATCH 07/12] drm: drm_display_mode: add signal polarity flags

2014-03-17 Thread Lothar Waßmann
Hi, Laurent Pinchart wrote: Hello, On Monday 17 March 2014 14:41:09 Andrzej Hajda wrote: On 03/13/2014 06:17 PM, Denis Carikli wrote: We need a way to pass signal polarity informations between DRM panels, and the display drivers. To do that, a pol_flags field was added to

Re: [PATCH 07/12] drm: drm_display_mode: add signal polarity flags

2014-03-17 Thread Laurent Pinchart
Hi Lothar, On Monday 17 March 2014 16:14:36 Lothar Waßmann wrote: Laurent Pinchart wrote: On Monday 17 March 2014 14:41:09 Andrzej Hajda wrote: On 03/13/2014 06:17 PM, Denis Carikli wrote: We need a way to pass signal polarity informations between DRM panels, and the display