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authorEric Miao <eric.miao@marvell.com>2009-03-19 15:24:30 +0800
committerEric Miao <eric.miao@marvell.com>2009-03-19 16:20:39 +0800
commit782385ae176b304c7105051e1b06c68bc0b4a2ba (patch)
tree0b4c4904b347fe4697d3025ea6de0af2a5303e8b /drivers
parentc68ffddabcaaa64c6ea681d2944cbda50a8654ea (diff)
[ARM] pxa: fix overlay being un-necessarily initialized on pxa25x
pxa25x doesn't support overlay in its LCD controller, this patch adds pxafb_overlay_supported() functions to check the initialization is necessary. Signed-off-by: Eric Miao <eric.miao@marvell.com>
Diffstat (limited to 'drivers')
-rw-r--r--drivers/video/pxafb.c14
1 files changed, 14 insertions, 0 deletions
diff --git a/drivers/video/pxafb.c b/drivers/video/pxafb.c
index 48ff701d3a72..40a5d9d66755 100644
--- a/drivers/video/pxafb.c
+++ b/drivers/video/pxafb.c
@@ -883,10 +883,21 @@ static void __devinit init_pxafb_overlay(struct pxafb_info *fbi,
init_completion(&ofb->branch_done);
}
+static inline int pxafb_overlay_supported(void)
+{
+ if (cpu_is_pxa27x() || cpu_is_pxa3xx())
+ return 1;
+
+ return 0;
+}
+
static int __devinit pxafb_overlay_init(struct pxafb_info *fbi)
{
int i, ret;
+ if (!pxafb_overlay_supported())
+ return 0;
+
for (i = 0; i < 2; i++) {
init_pxafb_overlay(fbi, &fbi->overlay[i], i);
ret = register_framebuffer(&fbi->overlay[i].fb);
@@ -909,6 +920,9 @@ static void __devexit pxafb_overlay_exit(struct pxafb_info *fbi)
{
int i;
+ if (!pxafb_overlay_supported())
+ return;
+
for (i = 0; i < 2; i++)
unregister_framebuffer(&fbi->overlay[i].fb);
}