Disconnecting the TypeC PHY when the port is in legacy mode is not necessary: - BSpec doesn't specify a disconnect sequence for legacy mode. - The use of the PHY is dedicated for the display in legacy mode. - We keep the PHY always connected during runtime as well in legacy mode.
We disconnect the PHY when needed during a disabling modeset for the port, so we can also remove the disconnect call from the destroy hook. Cc: José Roberto de Souza <[email protected]> Cc: Rodrigo Vivi <[email protected]> Signed-off-by: Imre Deak <[email protected]> Reviewed-by: José Roberto de Souza <[email protected]> --- drivers/gpu/drm/i915/display/intel_ddi.c | 21 +-------------------- drivers/gpu/drm/i915/display/intel_tc.c | 4 +++- drivers/gpu/drm/i915/display/intel_tc.h | 2 -- 3 files changed, 4 insertions(+), 23 deletions(-) diff --git a/drivers/gpu/drm/i915/display/intel_ddi.c b/drivers/gpu/drm/i915/display/intel_ddi.c index ddbc4944b4e0..97611b3bd302 100644 --- a/drivers/gpu/drm/i915/display/intel_ddi.c +++ b/drivers/gpu/drm/i915/display/intel_ddi.c @@ -3946,31 +3946,12 @@ static int intel_ddi_compute_config(struct intel_encoder *encoder, return 0; } -static void intel_ddi_encoder_suspend(struct intel_encoder *encoder) -{ - struct intel_digital_port *dig_port = enc_to_dig_port(&encoder->base); - - intel_dp_encoder_suspend(encoder); - - /* - * TODO: disconnect also from USB DP alternate mode once we have a - * way to handle the modeset restore in that mode during resume - * even if the sink has disappeared while being suspended. - */ - if (dig_port->tc_legacy_port) - icl_tc_phy_disconnect(dig_port); -} - static void intel_ddi_encoder_destroy(struct drm_encoder *encoder) { struct intel_digital_port *dig_port = enc_to_dig_port(encoder); - struct drm_i915_private *i915 = to_i915(encoder->dev); intel_dp_encoder_flush_work(encoder); - if (intel_port_is_tc(i915, dig_port->base.port)) - icl_tc_phy_disconnect(dig_port); - drm_encoder_cleanup(encoder); kfree(dig_port); } @@ -4262,7 +4243,7 @@ void intel_ddi_init(struct drm_i915_private *dev_priv, enum port port) intel_encoder->update_pipe = intel_ddi_update_pipe; intel_encoder->get_hw_state = intel_ddi_get_hw_state; intel_encoder->get_config = intel_ddi_get_config; - intel_encoder->suspend = intel_ddi_encoder_suspend; + intel_encoder->suspend = intel_dp_encoder_suspend; intel_encoder->get_power_domains = intel_ddi_get_power_domains; intel_encoder->type = INTEL_OUTPUT_DDI; intel_encoder->power_domain = intel_port_to_power_domain(port); diff --git a/drivers/gpu/drm/i915/display/intel_tc.c b/drivers/gpu/drm/i915/display/intel_tc.c index 6c43becf97f7..5e40b7eef7dd 100644 --- a/drivers/gpu/drm/i915/display/intel_tc.c +++ b/drivers/gpu/drm/i915/display/intel_tc.c @@ -227,10 +227,12 @@ static void icl_tc_phy_connect(struct intel_digital_port *dig_port, * See the comment at the connect function. This implements the Disconnect * Flow. */ -void icl_tc_phy_disconnect(struct intel_digital_port *dig_port) +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: icl_tc_phy_set_safe_mode(dig_port, true); dig_port->tc_mode = TC_PORT_TBT_ALT; diff --git a/drivers/gpu/drm/i915/display/intel_tc.h b/drivers/gpu/drm/i915/display/intel_tc.h index 8adc107cdbcb..0d8411d4a91d 100644 --- a/drivers/gpu/drm/i915/display/intel_tc.h +++ b/drivers/gpu/drm/i915/display/intel_tc.h @@ -10,8 +10,6 @@ #include <linux/mutex.h> #include "intel_drv.h" -void icl_tc_phy_disconnect(struct intel_digital_port *dig_port); - bool intel_tc_port_connected(struct intel_digital_port *dig_port); u32 intel_tc_port_get_lane_mask(struct intel_digital_port *dig_port); int intel_tc_port_fia_max_lane_count(struct intel_digital_port *dig_port); -- 2.17.1 _______________________________________________ Intel-gfx mailing list [email protected] https://lists.freedesktop.org/mailman/listinfo/intel-gfx
