Thread (61 messages) 61 messages, 4 authors, 2012-08-15

Re: [RFC 08/17] OMAPDSS: DSI: Maintain own copy of timings in driver data

flat view

From: Tomi Valkeinen <hidden>
Date: 2012-08-07 14:07:42
Also in: linux-omap

On Wed, 2012-08-01 at 16:01 +0530, Archit Taneja wrote:
The DSI driver currently relies on the timings in omap_dss_device struct to
configure the DISPC and DSI blocks accordingly. This makes the DSI interface
driver dependent on the omap_dss_device struct.

Make the DPI driver data maintain it's own timings field. The panel driver is
          ^^^
DSI
quoted hunk ↗ jump to hunk
expected to call omapdss_dsi_set_timings() to set these timings before the panel
is enabled.

Signed-off-by: Archit Taneja <redacted>d
---
 drivers/video/omap2/displays/panel-taal.c |    2 ++
 drivers/video/omap2/dss/dsi.c             |   27 ++++++++++++++++++++++-----
 include/video/omapdss.h                   |    2 ++
 3 files changed, 26 insertions(+), 5 deletions(-)
diff --git a/drivers/video/omap2/displays/panel-taal.c b/drivers/video/omap2/displays/panel-taal.c
index 3f5acc7..4775580 100644
--- a/drivers/video/omap2/displays/panel-taal.c
+++ b/drivers/video/omap2/displays/panel-taal.c
@@ -1060,6 +1060,8 @@ static int taal_power_on(struct omap_dss_device *dssdev)
 		goto err0;
 	};
 
+	omapdss_dsi_set_timings(dssdev, &td->panel_config->timings);
+
 	r = omapdss_dsi_display_enable(dssdev);
 	if (r) {
 		dev_err(&dssdev->dev, "failed to enable DSI\n");
Video timings for command mode panel are meaningless. If we need to pass
the resolution of the panel, perhaps we should have a separate function
for that.

However, with a quick glance at dsi.c, we don't even use the
dssdev->panel.timings for cmd mode panel. But we do use
dssdev->get_resolution() in a few places. Those calls could be replaced
by storing the panel size in dsi.c, given with omapdss_dsi_set_size() or
such. We could use the timings field in dsi.c to store them, though.

 Tomi

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