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authorGreg Kroah-Hartman <gregkh@linuxfoundation.org>2013-01-25 21:06:30 -0800
committerGreg Kroah-Hartman <gregkh@linuxfoundation.org>2013-01-25 21:06:30 -0800
commit422d26b6ecd77af8c77f2a40580679459825170f (patch)
tree632e690e458fb7b27db200cd6fcd5429e143e419 /drivers/video
parent4c271bb67c04253c1e99006eb48fb773a8fe8c0f (diff)
parent949db153b6466c6f7cad5a427ecea94985927311 (diff)
Merge 3.8-rc5 into driver-core-next
This resolves a gpio driver merge issue pointed out in linux-next. Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Diffstat (limited to 'drivers/video')
-rw-r--r--drivers/video/imxfb.c13
1 files changed, 12 insertions, 1 deletions
diff --git a/drivers/video/imxfb.c b/drivers/video/imxfb.c
index 12526787a7c7..0abf2bf20836 100644
--- a/drivers/video/imxfb.c
+++ b/drivers/video/imxfb.c
@@ -139,6 +139,7 @@ struct imxfb_info {
struct clk *clk_ahb;
struct clk *clk_per;
enum imxfb_type devtype;
+ bool enabled;
/*
* These are the addresses we mapped
@@ -536,6 +537,10 @@ static void imxfb_exit_backlight(struct imxfb_info *fbi)
static void imxfb_enable_controller(struct imxfb_info *fbi)
{
+
+ if (fbi->enabled)
+ return;
+
pr_debug("Enabling LCD controller\n");
writel(fbi->screen_dma, fbi->regs + LCDC_SSA);
@@ -556,6 +561,7 @@ static void imxfb_enable_controller(struct imxfb_info *fbi)
clk_prepare_enable(fbi->clk_ipg);
clk_prepare_enable(fbi->clk_ahb);
clk_prepare_enable(fbi->clk_per);
+ fbi->enabled = true;
if (fbi->backlight_power)
fbi->backlight_power(1);
@@ -565,6 +571,9 @@ static void imxfb_enable_controller(struct imxfb_info *fbi)
static void imxfb_disable_controller(struct imxfb_info *fbi)
{
+ if (!fbi->enabled)
+ return;
+
pr_debug("Disabling LCD controller\n");
if (fbi->backlight_power)
@@ -575,6 +584,7 @@ static void imxfb_disable_controller(struct imxfb_info *fbi)
clk_disable_unprepare(fbi->clk_per);
clk_disable_unprepare(fbi->clk_ipg);
clk_disable_unprepare(fbi->clk_ahb);
+ fbi->enabled = false;
writel(0, fbi->regs + LCDC_RMCR);
}
@@ -729,6 +739,8 @@ static int __init imxfb_init_fbinfo(struct platform_device *pdev)
memset(fbi, 0, sizeof(struct imxfb_info));
+ fbi->devtype = pdev->id_entry->driver_data;
+
strlcpy(info->fix.id, IMX_NAME, sizeof(info->fix.id));
info->fix.type = FB_TYPE_PACKED_PIXELS;
@@ -789,7 +801,6 @@ static int __init imxfb_probe(struct platform_device *pdev)
return -ENOMEM;
fbi = info->par;
- fbi->devtype = pdev->id_entry->driver_data;
if (!fb_mode)
fb_mode = pdata->mode[0].mode.name;