From: linux@arm.linux.org.uk (Russell King - ARM Linux)
To: linux-arm-kernel@lists.infradead.org
Subject: [PATCH 07/12] drm: drm_display_mode: add signal polarity flags
Date: Tue, 18 Mar 2014 09:30:35 +0000 [thread overview]
Message-ID: <20140318093035.GR21483@n2100.arm.linux.org.uk> (raw)
In-Reply-To: <20140318085030.66db84b7@ipc1.ka-ro>
On Tue, Mar 18, 2014 at 08:50:30AM +0100, Lothar Wa?mann wrote:
> Hi,
>
> Laurent Pinchart wrote:
> > Hi Lothar,
> >
> > On Monday 17 March 2014 16:14:36 Lothar Wa?mann 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 valid.
> > > The flag defines whether data is valid during the HIGH or LOW period of
> > > DE.
> >
> > The DRM_MODE_FLAG_POL_DE_(LOW|HIGH) do, by my impression of the proposed new
> > DRM_MODE_FLAG_POL_DE_*EDGE flags is that they define sampling clock edges, not
> > active levels.
> >
> The current naming of the flags gives the impression that they describe
> the sampling edges of a clock signal. But the DE signal in fact is not
> a clock signal but a level sensitive gating signal.
+1
--
FTTC broadband for 0.8mile line: now at 9.7Mbps down 460kbps up... slowly
improving, and getting towards what was expected from it.
next prev parent reply other threads:[~2014-03-18 9:30 UTC|newest]
Thread overview: 23+ messages / expand[flat|nested] mbox.gz Atom feed top
2014-03-13 17:17 [PATCH v11][ 01/12] [media] v4l2: add new V4L2_PIX_FMT_RGB666 pixel format Denis Carikli
2014-03-13 17:17 ` [PATCH v11][ 02/12] imx-drm: Add RGB666 support for parallel display Denis Carikli
2014-03-13 17:17 ` [PATCH v11][ 03/12] imx-drm: Correct BGR666 and the board's dts that use them Denis Carikli
2014-03-13 17:17 ` [PATCH v11][ 04/12] imx-drm: Match ipu_di_signal_cfg's clk_pol with its description Denis Carikli
2014-03-13 17:17 ` [PATCH v11][ 05/12] imx-drm: use defines for clock polarity settings Denis Carikli
2014-03-13 17:17 ` [PATCH v11][ 06/12] ARM: dts: imx5*, imx6*: correct display-timings nodes Denis Carikli
2014-03-13 17:17 ` [PATCH 07/12] drm: drm_display_mode: add signal polarity flags Denis Carikli
2014-03-17 13:41 ` Andrzej Hajda
2014-03-17 13:58 ` Laurent Pinchart
2014-03-17 15:14 ` Lothar Waßmann
2014-03-17 15:44 ` Laurent Pinchart
2014-03-18 7:50 ` Lothar Waßmann
2014-03-18 9:30 ` Russell King - ARM Linux [this message]
2014-03-18 12:41 ` Laurent Pinchart
2014-03-18 12:56 ` Russell King - ARM Linux
2014-03-18 13:05 ` Laurent Pinchart
2014-03-18 13:05 ` Lothar Waßmann
2014-03-13 17:17 ` [PATCH 08/12] imx-drm: Use drm_display_mode timings flags Denis Carikli
2014-03-18 13:04 ` Lothar Waßmann
2014-03-13 17:17 ` [PATCH 09/12] drm/panel: Add Eukrea mbimxsd51 displays Denis Carikli
2014-03-13 17:17 ` [PATCH 10/12] ARM: dts: mbimx51sd: Add display support Denis Carikli
2014-03-13 17:17 ` [PATCH 11/12] ARM: dts: mbimx51sd: Add CMO-QVGA backlight support Denis Carikli
2014-03-13 17:17 ` [PATCH 12/12] ARM: imx_v6_v7_defconfig: Add more drm drivers Denis Carikli
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