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Diffstat (limited to 'drivers/video/ep93xx-fb.c')
-rw-r--r--drivers/video/ep93xx-fb.c18
1 files changed, 9 insertions, 9 deletions
diff --git a/drivers/video/ep93xx-fb.c b/drivers/video/ep93xx-fb.c
index 2e830ec52a5a..f8babbeee275 100644
--- a/drivers/video/ep93xx-fb.c
+++ b/drivers/video/ep93xx-fb.c
@@ -519,12 +519,15 @@ static int __devinit ep93xxfb_probe(struct platform_device *pdev)
goto failed;
}
- res = request_mem_region(res->start, resource_size(res), pdev->name);
- if (!res) {
- err = -EBUSY;
- goto failed;
- }
-
+ /*
+ * FIXME - We don't do a request_mem_region here because we are
+ * sharing the register space with the backlight driver (see
+ * drivers/video/backlight/ep93xx_bl.c) and doing so will cause
+ * the second loaded driver to return -EBUSY.
+ *
+ * NOTE: No locking is required; the backlight does not touch
+ * any of the framebuffer registers.
+ */
fbi->res = res;
fbi->mmio_base = ioremap(res->start, resource_size(res));
if (!fbi->mmio_base) {
@@ -586,8 +589,6 @@ failed:
clk_put(fbi->clk);
if (fbi->mmio_base)
iounmap(fbi->mmio_base);
- if (fbi->res)
- release_mem_region(fbi->res->start, resource_size(fbi->res));
ep93xxfb_dealloc_videomem(info);
if (&info->cmap)
fb_dealloc_cmap(&info->cmap);
@@ -608,7 +609,6 @@ static int __devexit ep93xxfb_remove(struct platform_device *pdev)
clk_disable(fbi->clk);
clk_put(fbi->clk);
iounmap(fbi->mmio_base);
- release_mem_region(fbi->res->start, resource_size(fbi->res));
ep93xxfb_dealloc_videomem(info);
fb_dealloc_cmap(&info->cmap);