Commit 4366750a authored by Imre Deak's avatar Imre Deak Committed by Radhakrishna Sripada
Browse files

drm/i915/mtl: TypeC HPD live status query 



The HPD live status for MTL has to be read from different set of
registers. MTL deserves a new function for this purpose
and cannot reuse the existing  HPD live status detection

Reviewed-by: default avatarMatt Atwood <matthew.s.atwood@intel.com>
Signed-off-by: default avatarAnusha Srivatsa <anusha.srivatsa@intel.com>
Signed-off-by: default avatarImre Deak <imre.deak@intel.com>
Signed-off-by: default avatarMika Kahola <mika.kahola@intel.com>
Signed-off-by: default avatarRadhakrishna Sripada <radhakrishna.sripada@intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20230428095433.4109054-12-mika.kahola@intel.com
parent 6f0423b0

drivers/gpu/drm/i915/display/intel_tc.c

+29 −1
Original line number Diff line number Diff line
@@ -886,6 +886,34 @@ static const struct intel_tc_phy_ops adlp_tc_phy_ops = { 
 * XELPDP TC PHY handlers

 * ----------------------

 */

static u32 xelpdp_tc_phy_hpd_live_status(struct intel_tc_port *tc)

{

	struct drm_i915_private *i915 = tc_to_i915(tc);

	struct intel_digital_port *dig_port = tc->dig_port;

	enum hpd_pin hpd_pin = dig_port->base.hpd_pin;

	u32 pica_isr_bits = i915->display.hotplug.hpd[hpd_pin];

	u32 pch_isr_bit = i915->display.hotplug.pch_hpd[hpd_pin];

	intel_wakeref_t wakeref;

	u32 pica_isr;

	u32 pch_isr;

	u32 mask = 0;



	with_intel_display_power(i915, POWER_DOMAIN_DISPLAY_CORE, wakeref) {

		pica_isr = intel_de_read(i915, PICAINTERRUPT_ISR);

		pch_isr = intel_de_read(i915, SDEISR);

	}



	if (pica_isr & (pica_isr_bits & XELPDP_DP_ALT_HOTPLUG_MASK))

		mask |= BIT(TC_PORT_DP_ALT);

	if (pica_isr & (pica_isr_bits & XELPDP_TBT_HOTPLUG_MASK))

		mask |= BIT(TC_PORT_TBT_ALT);



	if (tc->legacy_port && (pch_isr & pch_isr_bit))

		mask |= BIT(TC_PORT_LEGACY);



	return mask;

}



static bool

xelpdp_tc_phy_tcss_power_is_enabled(struct intel_tc_port *tc)

{
@@ -1039,7 +1067,7 @@ static void xelpdp_tc_phy_disconnect(struct intel_tc_port *tc) 


static const struct intel_tc_phy_ops xelpdp_tc_phy_ops = {

	.cold_off_domain = tgl_tc_phy_cold_off_domain,

	.hpd_live_status = adlp_tc_phy_hpd_live_status,

	.hpd_live_status = xelpdp_tc_phy_hpd_live_status,

	.is_ready = adlp_tc_phy_is_ready,

	.is_owned = xelpdp_tc_phy_is_owned,

	.get_hw_state = xelpdp_tc_phy_get_hw_state,