A follow-up patch will disconnect/reconnect PHYs around AUX transfers and modeset enable/disables. To prepare for that and make things consistent for all TypeC modes stop connecting the PHY in legacy mode without a sink being connected. This was done before since in legacy mode the PHY is dedicated to display usage, so there was no point in disconnecting it. However after the follow-up changes the TC-cold blocking power domains will be held as long as the PHY is in the connected state, so we'll need to disconnect/re-connect the PHY in all TypeC modes to allow for power saving.
Cc: José Roberto de Souza <[email protected]> Signed-off-by: Imre Deak <[email protected]> --- drivers/gpu/drm/i915/display/intel_tc.c | 12 +----------- 1 file changed, 1 insertion(+), 11 deletions(-) diff --git a/drivers/gpu/drm/i915/display/intel_tc.c b/drivers/gpu/drm/i915/display/intel_tc.c index 511c46e36e237..aa4c1e5e0c002 100644 --- a/drivers/gpu/drm/i915/display/intel_tc.c +++ b/drivers/gpu/drm/i915/display/intel_tc.c @@ -511,8 +511,6 @@ static void icl_tc_phy_disconnect(struct intel_digital_port *dig_port) { switch (dig_port->tc_mode) { case TC_PORT_LEGACY: - /* Nothing to do, we never disconnect from legacy mode */ - break; case TC_PORT_DP_ALT: tc_phy_take_ownership(dig_port, false); dig_port->tc_mode = TC_PORT_TBT_ALT; @@ -580,9 +578,7 @@ intel_tc_port_get_target_mode(struct intel_digital_port *dig_port) if (live_status_mask) return fls(live_status_mask) - 1; - return tc_phy_status_complete(dig_port) && - dig_port->tc_legacy_port ? TC_PORT_LEGACY : - TC_PORT_TBT_ALT; + return TC_PORT_TBT_ALT; } static void intel_tc_port_reset_mode(struct intel_digital_port *dig_port, @@ -643,14 +639,8 @@ void intel_tc_port_sanitize(struct intel_digital_port *dig_port) "Port %s: PHY disconnected with %d active link(s)\n", dig_port->tc_port_name, active_links); intel_tc_port_link_init_refcount(dig_port, active_links); - - goto out; } - if (dig_port->tc_legacy_port) - icl_tc_phy_connect(dig_port, 1); - -out: drm_dbg_kms(&i915->drm, "Port %s: sanitize mode (%s)\n", dig_port->tc_port_name, tc_port_mode_name(dig_port->tc_mode)); -- 2.27.0
