Commit aba86890 authored by Imre Deak's avatar Imre Deak Committed by Daniel Vetter
Browse files

drm/i915: factor out intel_edp_panel_vdd_sanitize 



This will be needed by an upcoming patch too that needs to sanitize the
VDD state during resume. The additional async disabling is only needed
for the resume path, here it doesn't make a difference since we enable
VDD right after the sanitize call.

v2:
- don't set intel_dp ptr for non-eDP encoders (Ville)

Signed-off-by: default avatarImre Deak <imre.deak@intel.com>
Reviewed-by: default avatarVille Syrjälä <ville.syrjala@linux.intel.com>
Signed-off-by: default avatarDaniel Vetter <daniel.vetter@ffwll.ch>
parent 1381308b

drivers/gpu/drm/i915/intel_dp.c

+43 −17
Original line number Diff line number Diff line
@@ -1285,6 +1285,19 @@ static void edp_panel_vdd_work(struct work_struct *__work) 
	drm_modeset_unlock(&dev->mode_config.connection_mutex);

}



static void edp_panel_vdd_schedule_off(struct intel_dp *intel_dp)

{

	unsigned long delay;



	/*

	 * Queue the timer to fire a long time from now (relative to the power

	 * down delay) to keep the panel power up across a sequence of

	 * operations.

	 */

	delay = msecs_to_jiffies(intel_dp->panel_power_cycle_delay * 5);

	schedule_delayed_work(&intel_dp->panel_vdd_work, delay);

}



static void edp_panel_vdd_off(struct intel_dp *intel_dp, bool sync)

{

	if (!is_edp(intel_dp))
@@ -1294,17 +1307,10 @@ static void edp_panel_vdd_off(struct intel_dp *intel_dp, bool sync) 


	intel_dp->want_panel_vdd = false;



	if (sync) {

	if (sync)

		edp_panel_vdd_off_sync(intel_dp);

	} else {

		/*

		 * Queue the timer to fire a long

		 * time from now (relative to the power down delay)

		 * to keep the panel power up across a sequence of operations

		 */

		schedule_delayed_work(&intel_dp->panel_vdd_work,

				      msecs_to_jiffies(intel_dp->panel_power_cycle_delay * 5));

	}

	else

		edp_panel_vdd_schedule_off(intel_dp);

}



void intel_edp_panel_on(struct intel_dp *intel_dp)
@@ -4441,6 +4447,32 @@ intel_dp_drrs_init(struct intel_digital_port *intel_dig_port, 
	return downclock_mode;

}



void intel_edp_panel_vdd_sanitize(struct intel_encoder *intel_encoder)

{

	struct drm_device *dev = intel_encoder->base.dev;

	struct drm_i915_private *dev_priv = dev->dev_private;

	struct intel_dp *intel_dp;

	enum intel_display_power_domain power_domain;



	if (intel_encoder->type != INTEL_OUTPUT_EDP)

		return;



	intel_dp = enc_to_intel_dp(&intel_encoder->base);

	if (!edp_have_panel_vdd(intel_dp))

		return;

	/*

	 * The VDD bit needs a power domain reference, so if the bit is

	 * already enabled when we boot or resume, grab this reference and

	 * schedule a vdd off, so we don't hold on to the reference

	 * indefinitely.

	 */

	DRM_DEBUG_KMS("VDD left on by BIOS, adjusting state tracking\n");

	power_domain = intel_display_port_power_domain(intel_encoder);

	intel_display_power_get(dev_priv, power_domain);



	edp_panel_vdd_schedule_off(intel_dp);

}



static bool intel_edp_init_connector(struct intel_dp *intel_dp,

				     struct intel_connector *intel_connector,

				     struct edp_power_seq *power_seq)
@@ -4461,13 +4493,7 @@ static bool intel_edp_init_connector(struct intel_dp *intel_dp, 
	if (!is_edp(intel_dp))

		return true;



	/* The VDD bit needs a power domain reference, so if the bit is already

	 * enabled when we boot, grab this reference. */

	if (edp_have_panel_vdd(intel_dp)) {

		enum intel_display_power_domain power_domain;

		power_domain = intel_display_port_power_domain(intel_encoder);

		intel_display_power_get(dev_priv, power_domain);

	}

	intel_edp_panel_vdd_sanitize(intel_encoder);



	/* Cache DPCD and EDID for edp. */

	intel_edp_panel_vdd_on(intel_dp);

drivers/gpu/drm/i915/intel_drv.h

+1 −0
Original line number Diff line number Diff line
@@ -912,6 +912,7 @@ bool intel_dp_hpd_pulse(struct intel_digital_port *intel_dig_port, 
void intel_edp_backlight_on(struct intel_dp *intel_dp);

void intel_edp_backlight_off(struct intel_dp *intel_dp);

void intel_edp_panel_vdd_on(struct intel_dp *intel_dp);

void intel_edp_panel_vdd_sanitize(struct intel_encoder *intel_encoder);

void intel_edp_panel_on(struct intel_dp *intel_dp);

void intel_edp_panel_off(struct intel_dp *intel_dp);

void intel_edp_psr_enable(struct intel_dp *intel_dp);

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