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| author | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2012-09-16 20:42:46 -0700 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2012-09-16 20:42:46 -0700 |
| commit | 2bcb132c693566bcb8208cc7ce66b72a4f852ecf (patch) | |
| tree | 6fc4f05ce18140d86aa78a10380a610734aeaef9 /drivers/gpu/drm/i915/intel_panel.c | |
| parent | 67e6da702753dac8f0540209dded80a0c4e60d81 (diff) | |
| parent | 5698bd757d55b1bb87edd1a9744ab09c142abfc2 (diff) | |
| download | olio-linux-3.10-2bcb132c693566bcb8208cc7ce66b72a4f852ecf.tar.xz olio-linux-3.10-2bcb132c693566bcb8208cc7ce66b72a4f852ecf.zip | |
Merge 3.6-rc6 into usb-next
This resolves the merge problems with:
drivers/usb/dwc3/gadget.c
drivers/usb/musb/tusb6010.c
that had been seen in linux-next.
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Diffstat (limited to 'drivers/gpu/drm/i915/intel_panel.c')
| -rw-r--r-- | drivers/gpu/drm/i915/intel_panel.c | 31 |
1 files changed, 22 insertions, 9 deletions
diff --git a/drivers/gpu/drm/i915/intel_panel.c b/drivers/gpu/drm/i915/intel_panel.c index 3df4f5fa892..e019b236986 100644 --- a/drivers/gpu/drm/i915/intel_panel.c +++ b/drivers/gpu/drm/i915/intel_panel.c @@ -162,19 +162,12 @@ static u32 i915_read_blc_pwm_ctl(struct drm_i915_private *dev_priv) return val; } -u32 intel_panel_get_max_backlight(struct drm_device *dev) +static u32 _intel_panel_get_max_backlight(struct drm_device *dev) { struct drm_i915_private *dev_priv = dev->dev_private; u32 max; max = i915_read_blc_pwm_ctl(dev_priv); - if (max == 0) { - /* XXX add code here to query mode clock or hardware clock - * and program max PWM appropriately. - */ - pr_warn_once("fixme: max PWM is zero\n"); - return 1; - } if (HAS_PCH_SPLIT(dev)) { max >>= 16; @@ -188,6 +181,22 @@ u32 intel_panel_get_max_backlight(struct drm_device *dev) max *= 0xff; } + return max; +} + +u32 intel_panel_get_max_backlight(struct drm_device *dev) +{ + u32 max; + + max = _intel_panel_get_max_backlight(dev); + if (max == 0) { + /* XXX add code here to query mode clock or hardware clock + * and program max PWM appropriately. + */ + pr_warn_once("fixme: max PWM is zero\n"); + return 1; + } + DRM_DEBUG_DRIVER("max backlight PWM = %d\n", max); return max; } @@ -424,7 +433,11 @@ int intel_panel_setup_backlight(struct drm_device *dev) memset(&props, 0, sizeof(props)); props.type = BACKLIGHT_RAW; - props.max_brightness = intel_panel_get_max_backlight(dev); + props.max_brightness = _intel_panel_get_max_backlight(dev); + if (props.max_brightness == 0) { + DRM_ERROR("Failed to get maximum backlight value\n"); + return -ENODEV; + } dev_priv->backlight = backlight_device_register("intel_backlight", &connector->kdev, dev, |