From mboxrd@z Thu Jan  1 00:00:00 1970
From: denis@eukrea.com (Denis Carikli)
Date: Wed, 23 Oct 2013 16:48:51 +0200
Subject: [Patch v2][ 03/37] drm: Add the lacking DRM_MODE_FLAG_* for
 matching the DISPLAY_FLAGS_*
In-Reply-To: <20131018074631.GO13047@intel.com>
References: <1382022155-21954-1-git-send-email-denis@eukrea.com>
 <1382022155-21954-4-git-send-email-denis@eukrea.com>
 <20131018074631.GO13047@intel.com>
Message-ID: <5267E1D3.5060803@eukrea.com>
To: linux-arm-kernel@lists.infradead.org
List-Id: linux-arm-kernel.lists.infradead.org

Hi,

On 10/18/2013 09:46 AM, Ville Syrj?l? wrote:
>> +#define DRM_MODE_FLAG_PDATEN			(1<<22)
>> +#define DRM_MODE_FLAG_NDATEN			(1<<23)
>> +#define DRM_MODE_FLAG_PPIXDATEDGE		(1<<24)
>> +#define DRM_MODE_FLAG_NPIXDATEDGE		(1<<25)
>
> Do we really need to make this stuff visible to userspace?
> And there's no documentation to explain any of it.

DRM_MODE_FLAG_PDATEN and DRM_MODE_FLAG_NDATEN were meant to represent 
the data enable polarity.

DRM_MODE_FLAG_PPIXDATEDGE and DRM_MODE_FLAG_NPIXDATEDGE were meant to 
represent the clock polarity.

What would you recommend to represent theses polarities?

Denis.

From mboxrd@z Thu Jan  1 00:00:00 1970
From: Denis Carikli <denis@eukrea.com>
Subject: Re: [Patch v2][ 03/37] drm: Add the lacking DRM_MODE_FLAG_* for
 matching the DISPLAY_FLAGS_*
Date: Wed, 23 Oct 2013 16:48:51 +0200
Message-ID: <5267E1D3.5060803@eukrea.com>
References: <1382022155-21954-1-git-send-email-denis@eukrea.com>
 <1382022155-21954-4-git-send-email-denis@eukrea.com>
 <20131018074631.GO13047@intel.com>
Mime-Version: 1.0
Content-Type: text/plain; charset="iso-8859-1"; Format="flowed"
Content-Transfer-Encoding: quoted-printable
Return-path: <linux-arm-kernel-bounces+linux-arm-kernel=m.gmane.org@lists.infradead.org>
In-Reply-To: <20131018074631.GO13047@intel.com>
List-Unsubscribe: <http://lists.infradead.org/mailman/options/linux-arm-kernel>,
 <mailto:linux-arm-kernel-request@lists.infradead.org?subject=unsubscribe>
List-Archive: <http://lists.infradead.org/pipermail/linux-arm-kernel/>
List-Post: <mailto:linux-arm-kernel@lists.infradead.org>
List-Help: <mailto:linux-arm-kernel-request@lists.infradead.org?subject=help>
List-Subscribe: <http://lists.infradead.org/mailman/listinfo/linux-arm-kernel>,
 <mailto:linux-arm-kernel-request@lists.infradead.org?subject=subscribe>
Sender: "linux-arm-kernel" <linux-arm-kernel-bounces@lists.infradead.org>
Errors-To: linux-arm-kernel-bounces+linux-arm-kernel=m.gmane.org@lists.infradead.org
To: =?ISO-8859-1?Q?Ville_Syrj=E4l=E4?= <ville.syrjala@linux.intel.com>
Cc: Fabio Estevam <fabio.estevam@freescale.com>, =?ISO-8859-1?Q?Eric_B=E9nard?= <eric@eukrea.com>, Greg Kroah-Hartman <gregkh@linuxfoundation.org>, driverdev-devel@linuxdriverproject.org, dri-devel@lists.freedesktop.org, Sascha Hauer <kernel@pengutronix.de>, linux-arm-kernel@lists.infradead.org
List-Id: dri-devel@lists.freedesktop.org

Hi,

On 10/18/2013 09:46 AM, Ville Syrj=E4l=E4 wrote:
>> +#define DRM_MODE_FLAG_PDATEN			(1<<22)
>> +#define DRM_MODE_FLAG_NDATEN			(1<<23)
>> +#define DRM_MODE_FLAG_PPIXDATEDGE		(1<<24)
>> +#define DRM_MODE_FLAG_NPIXDATEDGE		(1<<25)
>
> Do we really need to make this stuff visible to userspace?
> And there's no documentation to explain any of it.

DRM_MODE_FLAG_PDATEN and DRM_MODE_FLAG_NDATEN were meant to represent =

the data enable polarity.

DRM_MODE_FLAG_PPIXDATEDGE and DRM_MODE_FLAG_NPIXDATEDGE were meant to =

represent the clock polarity.

What would you recommend to represent theses polarities?

Denis.