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| author | Eric Miao <eric.miao@marvell.com> | 2008-12-08 18:46:00 +0800 |
|---|---|---|
| committer | Eric Miao <eric.miao@marvell.com> | 2008-12-17 22:50:52 +0800 |
| commit | 69bdea7047fbac88beb8b7ba9e428c4f0e53f563 (patch) | |
| tree | db4b378ef239087317cd0b4f8ba4c9d7ed8d638a /drivers/video | |
| parent | c1f99c215c58111629984a49ba87b2b145dd1f5b (diff) | |
| download | linux-69bdea7047fbac88beb8b7ba9e428c4f0e53f563.tar.gz linux-69bdea7047fbac88beb8b7ba9e428c4f0e53f563.tar.bz2 linux-69bdea7047fbac88beb8b7ba9e428c4f0e53f563.zip | |
[ARM] pxafb: allow insertion of delay to the smart panel command sequence
Some smart panel requires a delay between command sequences, while PXA
LCD controller didn't provide such one, let's emulate this by software.
A software delay marker can be inserted into the command sequence, once
pxafb_smart_queue() detects this, it flushes the previous commands and
delay for a specified number of milliseconds.
Signed-off-by: Eric Miao <eric.miao@marvell.com>
Diffstat (limited to 'drivers/video')
| -rw-r--r-- | drivers/video/pxafb.c | 13 |
1 files changed, 10 insertions, 3 deletions
diff --git a/drivers/video/pxafb.c b/drivers/video/pxafb.c index d6de84b42036..1e1c4ec0d3b9 100644 --- a/drivers/video/pxafb.c +++ b/drivers/video/pxafb.c @@ -723,12 +723,19 @@ int pxafb_smart_queue(struct fb_info *info, uint16_t *cmds, int n_cmds) int i; struct pxafb_info *fbi = container_of(info, struct pxafb_info, fb); - /* leave 2 commands for INTERRUPT and WAIT_FOR_SYNC */ - for (i = 0; i < n_cmds; i++) { + for (i = 0; i < n_cmds; i++, cmds++) { + /* if it is a software delay, flush and delay */ + if ((*cmds & 0xff00) == SMART_CMD_DELAY) { + pxafb_smart_flush(info); + mdelay(*cmds & 0xff); + continue; + } + + /* leave 2 commands for INTERRUPT and WAIT_FOR_SYNC */ if (fbi->n_smart_cmds == CMD_BUFF_SIZE - 8) pxafb_smart_flush(info); - fbi->smart_cmds[fbi->n_smart_cmds++] = *cmds++; + fbi->smart_cmds[fbi->n_smart_cmds++] = *cmds; } return 0; |