Commit 100fe4c0 authored by Ville Syrjälä's avatar Ville Syrjälä
Browse files

drm/i915: Add an encoder .shutdown() hook 



Add a new encoder hook .shutdown() which will get called at the end
of the pci .shutdown() hook. We shall use this to deal with the
panel power cycle delay issues.

Signed-off-by: default avatarVille Syrjälä <ville.syrjala@linux.intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20201001151640.14590-2-ville.syrjala@linux.intel.com


Reviewed-by: default avatarJani Nikula <jani.nikula@intel.com>
parent fe0f1e3b

drivers/gpu/drm/i915/display/intel_display_types.h

+5 −0
Original line number Diff line number Diff line
@@ -214,6 +214,11 @@ struct intel_encoder { 
	 * device interrupts are disabled.

	 */

	void (*suspend)(struct intel_encoder *);

	/*

	 * Called during system reboot/shutdown after all the

	 * encoders have been disabled and suspended.

	 */

	void (*shutdown)(struct intel_encoder *encoder);

	enum hpd_pin hpd_pin;

	enum intel_display_power_domain power_domain;

	/* for communication with audio component; protected by av_mutex */

drivers/gpu/drm/i915/i915_drv.c

+13 −0
Original line number Diff line number Diff line
@@ -1037,6 +1037,18 @@ static void intel_suspend_encoders(struct drm_i915_private *dev_priv) 
	drm_modeset_unlock_all(dev);

}



static void intel_shutdown_encoders(struct drm_i915_private *dev_priv)

{

	struct drm_device *dev = &dev_priv->drm;

	struct intel_encoder *encoder;



	drm_modeset_lock_all(dev);

	for_each_intel_encoder(dev, encoder)

		if (encoder->shutdown)

			encoder->shutdown(encoder);

	drm_modeset_unlock_all(dev);

}



void i915_driver_shutdown(struct drm_i915_private *i915)

{

	i915_gem_suspend(i915);
@@ -1051,6 +1063,7 @@ void i915_driver_shutdown(struct drm_i915_private *i915) 
	intel_hpd_cancel_work(i915);



	intel_suspend_encoders(i915);

	intel_shutdown_encoders(i915);

}



static bool suspend_to_idle(struct drm_i915_private *dev_priv)