diff options
| author | Russell King <rmk+kernel@arm.linux.org.uk> | 2013-02-04 14:51:49 +0000 |
|---|---|---|
| committer | Russell King <rmk+kernel@arm.linux.org.uk> | 2013-02-04 14:51:49 +0000 |
| commit | 2fb20e2e35cd1455d022ab7a553d7f1663ffbdeb (patch) | |
| tree | 4b3bb0f76c15264fe7d4cced91127f3d96ff31f5 /drivers/video | |
| parent | 9cb543124a2d31af42ce61a4c30765ecc8e5f1fa (diff) | |
| parent | 5b91ab0abc957145c3ff6be03eb9a3901797019f (diff) | |
Merge branch 'for-rmk/broadcast' of git://git.kernel.org/pub/scm/linux/kernel/git/will/linux into devel-stable
Diffstat (limited to 'drivers/video')
| -rw-r--r-- | drivers/video/imxfb.c | 13 |
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; |