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drm/i915/mtl: TypeC HPD live status query

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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: Matt Atwood <matthew.s.atwood@intel.com>
Signed-off-by: Anusha Srivatsa <anusha.srivatsa@intel.com>
Signed-off-by: Imre Deak <imre.deak@intel.com>
Signed-off-by: Mika Kahola <mika.kahola@intel.com>
Signed-off-by: Radhakrishna Sripada <radhakrishna.sripada@intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20230428095433.4109054-12-mika.kahola@intel.com
This commit is contained in:
Imre Deak 2023-04-28 12:54:31 +03:00 committed by Radhakrishna Sripada
parent 6f0423b06a
commit 4366750a0d
1 changed files with 29 additions and 1 deletions
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30
drivers/gpu/drm/i915/display/intel_tc.c
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@ -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,