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OpenCloudOS-Kernel/drivers/gpu/drm/i915/display/intel_tc.h

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drm/i915: Move the TypeC port handling code to a separate file Move the TypeC port handling functions to a new file for clarity. While at it: - s/icl_tc_port_connected()/intel_tc_port_connected()/ icl_tc_phy_disconnect(), will be unexported later. - s/intel_dp_get_fia_supported_lane_count()/ intel_tc_port_fia_max_lane_count()/ It's used for HDMI legacy mode too. - Simplify function interfaces by passing only dig_port to them. No functional changes. v2: - Fix checkpatch issues: +1/-1 empty lines in intel_tc.c and add missing SPDX to intel_tc.h. (Jani) Cc: Animesh Manna <animesh.manna@intel.com> Cc: Paulo Zanoni <paulo.r.zanoni@intel.com> Cc: José Roberto de Souza <jose.souza@intel.com> Cc: Jani Nikula <jani.nikula@intel.com> Signed-off-by: Imre Deak <imre.deak@intel.com> Acked-by: Jani Nikula <jani.nikula@intel.com> Reviewed-by: José Roberto de Souza <jose.souza@intel.com> Link: https://patchwork.freedesktop.org/patch/msgid/20190628143635.22066-4-imre.deak@intel.com
2019-06-28 22:36:15 +08:00
/* SPDX-License-Identifier: MIT */
/*
* Copyright © 2019 Intel Corporation
*/
#ifndef __INTEL_TC_H__
#define __INTEL_TC_H__
#include <linux/types.h>
struct intel_digital_port;
void icl_tc_phy_disconnect(struct intel_digital_port *dig_port);
bool intel_tc_port_connected(struct intel_digital_port *dig_port);
drm/i915: Factor out common parts from TypeC port handling functions Factor out helpers reading/parsing the TypeC specific registers, making current users of them clearer and letting us use them later. While at it also: - Simplify icl_tc_phy_connect() with an early return in legacy mode. - Simplify the live status check using one bitmask for all HPD bits. - Remove a micro-optimisation of the repeated safe-mode clearing. - Make sure we fix the legacy port flag in all cases. Except for the last two, no functional changes. v2: - Don't do reg reads at variable declarations. (Jani) - Prevent constant truncated compiler warning when assigning the valid_hpd_mask. (Nick) - s/intel_tc_port_get_lane_info/intel_tc_port_get_lane_mask/ (Ville) v3: - Make valid_hpd_mask init clear. (Ville) Cc: José Roberto de Souza <jose.souza@intel.com> Cc: Rodrigo Vivi <rodrigo.vivi@intel.com> Cc: Paulo Zanoni <paulo.r.zanoni@intel.com> Cc: Jani Nikula <jani.nikula@intel.com> Cc: Nick Desaulniers <ndesaulniers@google.com> Signed-off-by: Imre Deak <imre.deak@intel.com> Reviewed-by: Ville Syrjälä <ville.syrjala@linux.intel.com> Link: https://patchwork.freedesktop.org/patch/msgid/20190628143635.22066-10-imre.deak@intel.com
2019-06-28 22:36:21 +08:00
u32 intel_tc_port_get_lane_mask(struct intel_digital_port *dig_port);
drm/i915: Move the TypeC port handling code to a separate file Move the TypeC port handling functions to a new file for clarity. While at it: - s/icl_tc_port_connected()/intel_tc_port_connected()/ icl_tc_phy_disconnect(), will be unexported later. - s/intel_dp_get_fia_supported_lane_count()/ intel_tc_port_fia_max_lane_count()/ It's used for HDMI legacy mode too. - Simplify function interfaces by passing only dig_port to them. No functional changes. v2: - Fix checkpatch issues: +1/-1 empty lines in intel_tc.c and add missing SPDX to intel_tc.h. (Jani) Cc: Animesh Manna <animesh.manna@intel.com> Cc: Paulo Zanoni <paulo.r.zanoni@intel.com> Cc: José Roberto de Souza <jose.souza@intel.com> Cc: Jani Nikula <jani.nikula@intel.com> Signed-off-by: Imre Deak <imre.deak@intel.com> Acked-by: Jani Nikula <jani.nikula@intel.com> Reviewed-by: José Roberto de Souza <jose.souza@intel.com> Link: https://patchwork.freedesktop.org/patch/msgid/20190628143635.22066-4-imre.deak@intel.com
2019-06-28 22:36:15 +08:00
int intel_tc_port_fia_max_lane_count(struct intel_digital_port *dig_port);
drm/i915: Fix the TypeC port mode sanitization during loading/resume For using the correct AUX power domains we have to sanitize the TypeC port mode early, so move that before encoder sanitization. To do this properly read out the actual port mode instead of just relying on the VBT legacy port flag (which can be incorrect). We also verify that the PHY is connected as expected if the port is active. In case the port is inactive we connect the PHY in case of a legacy port - as we did so far. The PHY will be connected during detection for DP-alt mode - as it was done so far. For TBT-alt mode nothing needs to be done to connect the PHY. v2: - Use DRM_DEBUG_KMS instead of DRM_DEBUG_DRIVER. (José) v3: - Detect TCCOLD any time PORT_TX_DFLEXDPCSSS is read. (Ville) Cc: José Roberto de Souza <jose.souza@intel.com> Cc: Rodrigo Vivi <rodrigo.vivi@intel.com> Cc: Paulo Zanoni <paulo.r.zanoni@intel.com> Cc: Ville Syrjälä <ville.syrjala@linux.intel.com> Signed-off-by: Imre Deak <imre.deak@intel.com> Reviewed-by: José Roberto de Souza <jose.souza@intel.com> Link: https://patchwork.freedesktop.org/patch/msgid/20190628143635.22066-14-imre.deak@intel.com
2019-06-28 22:36:25 +08:00
void intel_tc_port_sanitize(struct intel_digital_port *dig_port);
drm/i915: Keep the TypeC port mode fixed for detect/AUX transfers We must keep the TypeC port mode fixed for the duration of the connector detection and each AUX transfers. Add a new TypeC lock holding it around these two sequences. For consistency also hold the lock during the port mode sanitization. Whenever resetting the port mode (only during the detection for now) the port's AUX power domain must be disabled already. Flush the async power domain disabling work to ensure this. A follow-up patch will make the port mode changing more robust by postponing the change for active ports. v2: - Fix checkpatch issue: missing annotation for tc_lock. Cc: José Roberto de Souza <jose.souza@intel.com> Cc: Rodrigo Vivi <rodrigo.vivi@intel.com> Cc: Paulo Zanoni <paulo.r.zanoni@intel.com> Cc: Ville Syrjälä <ville.syrjala@linux.intel.com> Signed-off-by: Imre Deak <imre.deak@intel.com> Reviewed-by: Ville Syrjälä <ville.syrjala@linux.intel.com> Link: https://patchwork.freedesktop.org/patch/msgid/20190628143635.22066-15-imre.deak@intel.com
2019-06-28 22:36:26 +08:00
void intel_tc_port_lock(struct intel_digital_port *dig_port);
void intel_tc_port_unlock(struct intel_digital_port *dig_port);
drm/i915: Fix the TypeC port mode sanitization during loading/resume For using the correct AUX power domains we have to sanitize the TypeC port mode early, so move that before encoder sanitization. To do this properly read out the actual port mode instead of just relying on the VBT legacy port flag (which can be incorrect). We also verify that the PHY is connected as expected if the port is active. In case the port is inactive we connect the PHY in case of a legacy port - as we did so far. The PHY will be connected during detection for DP-alt mode - as it was done so far. For TBT-alt mode nothing needs to be done to connect the PHY. v2: - Use DRM_DEBUG_KMS instead of DRM_DEBUG_DRIVER. (José) v3: - Detect TCCOLD any time PORT_TX_DFLEXDPCSSS is read. (Ville) Cc: José Roberto de Souza <jose.souza@intel.com> Cc: Rodrigo Vivi <rodrigo.vivi@intel.com> Cc: Paulo Zanoni <paulo.r.zanoni@intel.com> Cc: Ville Syrjälä <ville.syrjala@linux.intel.com> Signed-off-by: Imre Deak <imre.deak@intel.com> Reviewed-by: José Roberto de Souza <jose.souza@intel.com> Link: https://patchwork.freedesktop.org/patch/msgid/20190628143635.22066-14-imre.deak@intel.com
2019-06-28 22:36:25 +08:00
drm/i915: Unify the TypeC port notation in debug/error messages Unify the TypeC port notation in log messages, so that it matches the spec. For instance the first ICL TypeC port will read as 'Port C/TC#1'. v2: - Format print the name only once. (José) Cc: José Roberto de Souza <jose.souza@intel.com> Cc: Rodrigo Vivi <rodrigo.vivi@intel.com> Cc: Paulo Zanoni <paulo.r.zanoni@intel.com> Signed-off-by: Imre Deak <imre.deak@intel.com> Reviewed-by: José Roberto de Souza <jose.souza@intel.com> Link: https://patchwork.freedesktop.org/patch/msgid/20190628143635.22066-9-imre.deak@intel.com
2019-06-28 22:36:20 +08:00
void intel_tc_port_init(struct intel_digital_port *dig_port, bool is_legacy);
drm/i915: Move the TypeC port handling code to a separate file Move the TypeC port handling functions to a new file for clarity. While at it: - s/icl_tc_port_connected()/intel_tc_port_connected()/ icl_tc_phy_disconnect(), will be unexported later. - s/intel_dp_get_fia_supported_lane_count()/ intel_tc_port_fia_max_lane_count()/ It's used for HDMI legacy mode too. - Simplify function interfaces by passing only dig_port to them. No functional changes. v2: - Fix checkpatch issues: +1/-1 empty lines in intel_tc.c and add missing SPDX to intel_tc.h. (Jani) Cc: Animesh Manna <animesh.manna@intel.com> Cc: Paulo Zanoni <paulo.r.zanoni@intel.com> Cc: José Roberto de Souza <jose.souza@intel.com> Cc: Jani Nikula <jani.nikula@intel.com> Signed-off-by: Imre Deak <imre.deak@intel.com> Acked-by: Jani Nikula <jani.nikula@intel.com> Reviewed-by: José Roberto de Souza <jose.souza@intel.com> Link: https://patchwork.freedesktop.org/patch/msgid/20190628143635.22066-4-imre.deak@intel.com
2019-06-28 22:36:15 +08:00
#endif /* __INTEL_TC_H__ */