sugar/linux
1
0
Fork 0
Code Activity

omapfb: dispc: allow multiple external IRQ handlers

Browse Source 
Previously, the only external (to dispc.c) IRQ handler was RFBI's frame
done handler.  dispc's IRQ framework was very dumb: you could only have
one handler, and the semantics of {request,free}_irq were odd, to say the
least.

The new framework allows multiple consumers to register arbitrary IRQ
masks.

Signed-off-by: Daniel Stone <daniel.stone@nokia.com>
Signed-off-by: Tony Lindgren <tony@atomide.com>
Signed-off-by: Imre Deak <imre.deak@nokia.com>
Acked-by: Krzysztof Helt <krzysztof.h1@wp.pl>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
This commit is contained in:
Daniel Stone
2009-09-22 16:46:57 -07:00
committed by Linus Torvalds
parent 48a00e7fe9
commit 4c88ef170f
3 changed files with 69 additions and 44 deletions
Download Patch File Download Diff File Expand all files Collapse all files

7
drivers/video/omap/rfbi.c
View File

@@ -57,6 +57,7 @@
#define DISPC_BASE 0x48050400
#define DISPC_CONTROL 0x0040
#define DISPC_IRQ_FRAMEMASK 0x0001
static struct {
void __iomem *base;
@@ -553,7 +554,9 @@ static int rfbi_init(struct omapfb_device *fbdev)
l = (0x01 << 2);
rfbi_write_reg(RFBI_CONTROL, l);
if ((r = omap_dispc_request_irq(rfbi_dma_callback, NULL)) < 0) {
r = omap_dispc_request_irq(DISPC_IRQ_FRAMEMASK, rfbi_dma_callback,
NULL);
if (r < 0) {
dev_err(fbdev->dev, "can't get DISPC irq\n");
rfbi_enable_clocks(0);
return r;
@@ -570,7 +573,7 @@ static int rfbi_init(struct omapfb_device *fbdev)
static void rfbi_cleanup(void)
{
omap_dispc_free_irq();
omap_dispc_free_irq(DISPC_IRQ_FRAMEMASK, rfbi_dma_callback, NULL);
rfbi_put_clocks();
iounmap(rfbi.base);
}