OMAP: DSS2: DSI: use BTA to end the frame transfer

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Previously a work was started on FRAMEDONE interrupt, and this work
either sent a BTA synchronously or looped until TE_SIZE was zero, to
wait for the end of the transfer.

This patch changes a BTA to be sent asynchronously from FRAMEDONE
interrupt, and when a BTA interrupt is received, the transfer is
finished. This way we do the whole process asynchronously, and also
inside interrupt context.

This will give us much better latency to handle the end of the frame
than with the previous work based solution.

Signed-off-by: Tomi Valkeinen <tomi.valkeinen@nokia.com>

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This commit is contained in:

Tomi Valkeinen 2010-06-09 15:31:01 +03:00

parent 9ecd96842b

commit ab83b14c82

2 changed files with 58 additions and 63 deletions

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5

drivers/video/omap2/dss/dispc.c

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164

drivers/video/omap2/dss/dsi.c

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