From 69bdea7047fbac88beb8b7ba9e428c4f0e53f563 Mon Sep 17 00:00:00 2001 From: Eric Miao Date: Mon, 8 Dec 2008 18:46:00 +0800 Subject: [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 --- drivers/video/pxafb.c | 13 ++++++++++--- 1 file changed, 10 insertions(+), 3 deletions(-) (limited to 'drivers/video') 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; -- cgit v1.2.1