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author | Chris Wilson <chris@chris-wilson.co.uk> | 2019-01-14 14:21:23 +0000 |
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committer | Chris Wilson <chris@chris-wilson.co.uk> | 2019-01-14 16:18:25 +0000 |
commit | d4225a535b3b086868ce1f82dc0593d85d04dae8 (patch) | |
tree | 2eb43e414d4c87afe3768f5e1d8e0452314ea5ff /drivers/gpu/drm/i915/intel_panel.c | |
parent | c9d08cc3e3393e19162cb2cfaa1f454baf2aaffe (diff) | |
download | linux-d4225a535b3b086868ce1f82dc0593d85d04dae8.tar.gz |
drm/i915: Syntatic sugar for using intel_runtime_pm
Frequently, we use intel_runtime_pm_get/_put around a small block.
Formalise that usage by providing a macro to define such a block with an
automatic closure to scope the intel_runtime_pm wakeref to that block,
i.e. macro abuse smelling of python.
Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk>
Cc: Jani Nikula <jani.nikula@intel.com>
Reviewed-by: Mika Kuoppala <mika.kuoppala@linux.intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20190114142129.24398-15-chris@chris-wilson.co.uk
Diffstat (limited to 'drivers/gpu/drm/i915/intel_panel.c')
-rw-r--r-- | drivers/gpu/drm/i915/intel_panel.c | 18 |
1 files changed, 10 insertions, 8 deletions
diff --git a/drivers/gpu/drm/i915/intel_panel.c b/drivers/gpu/drm/i915/intel_panel.c index 93a2e4b5c54c..5a39a6347a7a 100644 --- a/drivers/gpu/drm/i915/intel_panel.c +++ b/drivers/gpu/drm/i915/intel_panel.c @@ -1204,17 +1204,19 @@ static int intel_backlight_device_get_brightness(struct backlight_device *bd) struct drm_device *dev = connector->base.dev; struct drm_i915_private *dev_priv = to_i915(dev); intel_wakeref_t wakeref; - u32 hw_level; - int ret; + int ret = 0; - wakeref = intel_runtime_pm_get(dev_priv); - drm_modeset_lock(&dev->mode_config.connection_mutex, NULL); + with_intel_runtime_pm(dev_priv, wakeref) { + u32 hw_level; - hw_level = intel_panel_get_backlight(connector); - ret = scale_hw_to_user(connector, hw_level, bd->props.max_brightness); + drm_modeset_lock(&dev->mode_config.connection_mutex, NULL); - drm_modeset_unlock(&dev->mode_config.connection_mutex); - intel_runtime_pm_put(dev_priv, wakeref); + hw_level = intel_panel_get_backlight(connector); + ret = scale_hw_to_user(connector, + hw_level, bd->props.max_brightness); + + drm_modeset_unlock(&dev->mode_config.connection_mutex); + } return ret; } |