On 08/12/2014 07:11 AM, Jani Nikula wrote:
Make it possible to change panel power control backlight state without touching the PWM. No functional changes.Signed-off-by: Jani Nikula <jani.nik...@intel.com> --- drivers/gpu/drm/i915/intel_dp.c | 39 ++++++++++++++++++++++++++------------- 1 file changed, 26 insertions(+), 13 deletions(-) diff --git a/drivers/gpu/drm/i915/intel_dp.c b/drivers/gpu/drm/i915/intel_dp.c index e5ada4fbe945..d8baf60ff3fd 100644 --- a/drivers/gpu/drm/i915/intel_dp.c +++ b/drivers/gpu/drm/i915/intel_dp.c @@ -1384,7 +1384,8 @@ void intel_edp_panel_off(struct intel_dp *intel_dp) intel_display_power_put(dev_priv, power_domain); } -void intel_edp_backlight_on(struct intel_dp *intel_dp) +/* Enable backlight in the panel power control. */ +static void _intel_edp_backlight_on(struct intel_dp *intel_dp) { struct intel_digital_port *intel_dig_port = dp_to_dig_port(intel_dp); struct drm_device *dev = intel_dig_port->base.base.dev; @@ -1392,13 +1393,6 @@ void intel_edp_backlight_on(struct intel_dp *intel_dp) u32 pp; u32 pp_ctrl_reg; - if (!is_edp(intel_dp)) - return; - - DRM_DEBUG_KMS("\n"); - - intel_panel_enable_backlight(intel_dp->attached_connector); - /* * If we enable the backlight right away following a panel power * on, we may see slight flicker as the panel syncs with the eDP @@ -1415,17 +1409,26 @@ void intel_edp_backlight_on(struct intel_dp *intel_dp) POSTING_READ(pp_ctrl_reg); } -void intel_edp_backlight_off(struct intel_dp *intel_dp) +/* Enable backlight PWM and backlight PP control. */ +void intel_edp_backlight_on(struct intel_dp *intel_dp) +{ + if (!is_edp(intel_dp)) + return; + + DRM_DEBUG_KMS("\n"); + + intel_panel_enable_backlight(intel_dp->attached_connector); + _intel_edp_backlight_on(intel_dp); +} + +/* Disable backlight in the panel power control. */ +static void _intel_edp_backlight_off(struct intel_dp *intel_dp) { struct drm_device *dev = intel_dp_to_dev(intel_dp); struct drm_i915_private *dev_priv = dev->dev_private; u32 pp; u32 pp_ctrl_reg; - if (!is_edp(intel_dp)) - return; - - DRM_DEBUG_KMS("\n"); pp = ironlake_get_pp_control(intel_dp); pp &= ~EDP_BLC_ENABLE; @@ -1436,7 +1439,17 @@ void intel_edp_backlight_off(struct intel_dp *intel_dp) intel_dp->last_backlight_off = jiffies; edp_wait_backlight_off(intel_dp); +} + +/* Disable backlight PP control and backlight PWM. */ +void intel_edp_backlight_off(struct intel_dp *intel_dp) +{ + if (!is_edp(intel_dp)) + return; + + DRM_DEBUG_KMS("\n"); + _intel_edp_backlight_off(intel_dp); intel_panel_disable_backlight(intel_dp->attached_connector); }
Reviewed_by: Clinton Taylor <clinton.a.tay...@intel.com> Tested_by: Clinton Taylor <clinton.a.tay...@intel.com> _______________________________________________ Intel-gfx mailing list Intel-gfx@lists.freedesktop.org http://lists.freedesktop.org/mailman/listinfo/intel-gfx
