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From: Alexandre Courbot <acourbot-DDmLM1+adcrQT0dZR+AlfA@public.gmane.org>
To: Andrzej Hajda <a.hajda-Sze3O3UU22JBDgjK7y7TUQ@public.gmane.org>,
	Thierry Reding
	<thierry.reding-Re5JQEeQqe8AvxtiuMwx3w@public.gmane.org>,
	Terje Bergstrom
	<tbergstrom-DDmLM1+adcrQT0dZR+AlfA@public.gmane.org>,
	Stephen Warren <swarren-3lzwWm7+Weoh9ZMKESR00Q@public.gmane.org>
Cc: linux-tegra-u79uwXL29TY76Z2rM5mHXA@public.gmane.org,
	dri-devel-PD4FTy7X32lNgt0PjOBp9y5qC8QIuHrW@public.gmane.org,
	linux-kernel-u79uwXL29TY76Z2rM5mHXA@public.gmane.org,
	gnurou-Re5JQEeQqe8AvxtiuMwx3w@public.gmane.org,
	Alexandre Courbot
	<acourbot-DDmLM1+adcrQT0dZR+AlfA@public.gmane.org>
Subject: [PATCH v3 1/4] drm/dsi: Flag for non-continuous clock behavior
Date: Tue,  8 Jul 2014 21:32:11 +0900	[thread overview]
Message-ID: <1404822734-8603-2-git-send-email-acourbot@nvidia.com> (raw)
In-Reply-To: <1404822734-8603-1-git-send-email-acourbot-DDmLM1+adcrQT0dZR+AlfA@public.gmane.org>

As per section 5.6.1 of the DSI specification, all DSI transmitters must
support continuous clock behavior on the clock lane, while non-continuous
mode support is only optional. Add a flag that allows devices to indicate
that they support non-continuous clock mode so host drivers can adapt
their behavior accordingly.

Signed-off-by: Alexandre Courbot <acourbot-DDmLM1+adcrQT0dZR+AlfA@public.gmane.org>
---
 include/drm/drm_mipi_dsi.h | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/include/drm/drm_mipi_dsi.h b/include/drm/drm_mipi_dsi.h
index 944f33f..efa1b55 100644
--- a/include/drm/drm_mipi_dsi.h
+++ b/include/drm/drm_mipi_dsi.h
@@ -94,6 +94,8 @@ void mipi_dsi_host_unregister(struct mipi_dsi_host *host);
 #define MIPI_DSI_MODE_VSYNC_FLUSH	BIT(8)
 /* disable EoT packets in HS mode */
 #define MIPI_DSI_MODE_EOT_PACKET	BIT(9)
+/* device supports non-continuous clock behavior (DSI spec 5.6.1) */
+#define MIPI_DSI_CLOCK_NON_CONTINUOUS	BIT(10)
 
 enum mipi_dsi_pixel_format {
 	MIPI_DSI_FMT_RGB888,
-- 
2.0.0

  parent reply	other threads:[~2014-07-08 12:32 UTC|newest]

Thread overview: 11+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2014-07-08 12:32 [PATCH v3 0/4] drm/dsi/tegra: continuous clock support Alexandre Courbot
     [not found] ` <1404822734-8603-1-git-send-email-acourbot-DDmLM1+adcrQT0dZR+AlfA@public.gmane.org>
2014-07-08 12:32   ` Alexandre Courbot [this message]
2014-07-14  8:29     ` [PATCH v3 1/4] drm/dsi: Flag for non-continuous clock behavior Thierry Reding
2014-07-08 12:32 ` [PATCH v3 2/4] drm/panel: Set non-continuous clock flag on supporting panels Alexandre Courbot
     [not found]   ` <1404822734-8603-3-git-send-email-acourbot-DDmLM1+adcrQT0dZR+AlfA@public.gmane.org>
2014-07-14  8:30     ` Thierry Reding
2014-07-08 12:32 ` [PATCH v3 3/4] drm/tegra: dsi - Handle non-continuous clock flag Alexandre Courbot
2014-07-14  8:30   ` Thierry Reding
2014-07-08 12:32 ` [PATCH v3 4/4] ARM: tegra: roth: add display DT node Alexandre Courbot
2014-07-11 13:14   ` Thierry Reding
2014-07-13  2:37     ` Alexandre Courbot
2014-07-14  6:05       ` Thierry Reding

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