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authorOlof Johansson <olof@lixom.net>2013-06-12 16:26:33 -0700
committerOlof Johansson <olof@lixom.net>2013-06-12 16:27:21 -0700
commit1e76c7cb3c1d281be2e452e780e53859abc7c145 (patch)
tree5199604868c08ab76ea17c860f1f2ab553670360 /drivers/video/atmel_lcdfb.c
parent18c0e596791a1014781202a3af649f42a6d8495d (diff)
parenta38089057fa450944f2e2d07885d76fd727c8d16 (diff)
Merge tag 'exynos-dt-1' of git://git.kernel.org/pub/scm/linux/kernel/git/kgene/linux-samsung into next/dt
From Kukjin Kim: Update exynos DT for - usb3phy and dwc3 for exynos5250 - keypad for exynos4412 - TMU clock for exynos4210 - MFC clock for exynos4 - DP controller for exynos5250 - G2D clock for exynos4 - some exynos boards * tag 'exynos-dt-1' of git://git.kernel.org/pub/scm/linux/kernel/git/kgene/linux-samsung: (456 commits) ARM: dts: add ohci and ehci controller nodes for EXYNOS5440 ARM: dts: Update G2D documentation for clock entries ARM: dts: Add clock entries to G2D node for exynos4x12 ARM: dts: Add clock entries to G2D node for exynos4210 ARM: dts: Remove duplicate and add missing G2D nodes clk: exynos4: Add additional G2D clocks ARM: dts: Document DP clock in samsung,exynos5-dp binding ARM: dts: add pin state information for DP HPD support to Exynos5250 ARM: dts: add dts node for the ahci sata exynos5440 ARM: dts: add vmmc regulator support for ODROID-X ARM: dts: add max77686 node entry for ODROID-X ARM: dts: Enable RTC by default on EXYNOS5440 ARM: dts: Add display timing node to exynos5250-arndale.dts ARM: dts: Add clock provider information for DP controller in Exynos5250 SoC ARM: dts: Add DT node for DP controller for Arndale Board ARM: dts: Remove combiner IRQ node from exynos4x12.dtsi ARM: dts: add max8997 device node for exynos4210-origen board ARM: dts: Enable TMU on Origen4210 board ARM: dts: Add TMU clock entries to exynos4210.dtsi ARM: dts: Update MFC documentation for clock entries ... Signed-off-by: Olof Johansson <olof@lixom.net>
Diffstat (limited to 'drivers/video/atmel_lcdfb.c')
-rw-r--r--drivers/video/atmel_lcdfb.c15
1 files changed, 12 insertions, 3 deletions
diff --git a/drivers/video/atmel_lcdfb.c b/drivers/video/atmel_lcdfb.c
index 540909de6247..effdb373b8db 100644
--- a/drivers/video/atmel_lcdfb.c
+++ b/drivers/video/atmel_lcdfb.c
@@ -223,8 +223,14 @@ static void init_backlight(struct atmel_lcdfb_info *sinfo)
static void exit_backlight(struct atmel_lcdfb_info *sinfo)
{
- if (sinfo->backlight)
- backlight_device_unregister(sinfo->backlight);
+ if (!sinfo->backlight)
+ return;
+
+ if (sinfo->backlight->ops) {
+ sinfo->backlight->props.power = FB_BLANK_POWERDOWN;
+ sinfo->backlight->ops->update_status(sinfo->backlight);
+ }
+ backlight_device_unregister(sinfo->backlight);
}
#else
@@ -461,8 +467,11 @@ static int atmel_lcdfb_check_var(struct fb_var_screeninfo *var,
if (info->fix.smem_len) {
unsigned int smem_len = (var->xres_virtual * var->yres_virtual
* ((var->bits_per_pixel + 7) / 8));
- if (smem_len > info->fix.smem_len)
+ if (smem_len > info->fix.smem_len) {
+ dev_err(dev, "Frame buffer is too small (%u) for screen size (need at least %u)\n",
+ info->fix.smem_len, smem_len);
return -EINVAL;
+ }
}
/* Saturate vertical and horizontal timings at maximum values */