From 782385ae176b304c7105051e1b06c68bc0b4a2ba Mon Sep 17 00:00:00 2001 From: Eric Miao Date: Thu, 19 Mar 2009 15:24:30 +0800 Subject: [PATCH] [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 --- drivers/video/pxafb.c | 14 ++++++++++++++ 1 file changed, 14 insertions(+) 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); } -- 2.39.5