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path: root/drivers/gpu/drm/i915/display/intel_alpm.c
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2024-10-02drm/i915:Remove unused parameter in marcoHe Lugang
The parameter dev_priv is actually not used in macro PORT_ALPM_CTL and PORT_ALPM_LFPS_CTL,so remove it to simplify the code. Reviewed-by: Jani Nikula <jani.nikula@linux.intel.com> Signed-off-by: He Lugang <helugang@uniontech.com> Link: https://patchwork.freedesktop.org/patch/msgid/6C2E07E089F0CB73+20240925064016.733173-1-helugang@uniontech.com Signed-off-by: Jani Nikula <jani.nikula@intel.com>
2024-09-05drm/i915/display: include media/cec-notifier.h and linux/debugfs.h where neededJani Nikula
Use a forward declaration for struct cec_notifier instead of including media/cec-notifier.h in intel_display_types.h, and only include it where needed. Also realize that a lot of places depend on including linux/debugfs.h via intel_display_types.h -> media/cec-notifier.h -> media/cec.h, and include that too where needed. v2: hsw_ips.c also needs debugfs.h (kernel test robot) Reviewed-by: Luca Coelho <luciano.coelho@intel.com> Signed-off-by: Jani Nikula <jani.nikula@intel.com> Link: https://patchwork.freedesktop.org/patch/msgid/20240827104521.4151471-1-jani.nikula@intel.com
2024-09-03drm/i915/display: Increase Fast Wake Sync length as a quirkJouni Högander
In commit "drm/i915/display: Increase number of fast wake precharge pulses" we were increasing Fast Wake sync pulse length to fix problems observed on Dell Precision 5490 laptop with AUO panel. Later we have observed this is causing problems on other panels. Fix these problems by increasing Fast Wake sync pulse length as a quirk applied for Dell Precision 5490 with problematic panel. Fixes: f77772866385 ("drm/i915/display: Increase number of fast wake precharge pulses") Cc: Ville Syrjälä <ville.syrjala@linux.intel.com> Closes: http://gitlab.freedesktop.org/drm/i915/kernel/-/issues/9739 Closes: https://gitlab.freedesktop.org/drm/xe/kernel/-/issues/2246 Closes: https://gitlab.freedesktop.org/drm/i915/kernel/-/issues/11762 Signed-off-by: Jouni Högander <jouni.hogander@intel.com> Reviewed-by: Jani Nikula <jani.nikula@intel.com> Cc: <stable@vger.kernel.org> # v6.10+ Link: https://patchwork.freedesktop.org/patch/msgid/20240902064241.1020965-3-jouni.hogander@intel.com
2024-08-16drm/i915/alpm: convert to struct intel_displayJani Nikula
Going forward, struct intel_display shall replace struct drm_i915_private as the main display device data pointer type. Convert intel_alpm.[ch] to struct intel_display. Reviewed-by: Rodrigo Vivi <rodrigo.vivi@intel.com> Link: https://patchwork.freedesktop.org/patch/msgid/20240813164123.2674462-4-jani.nikula@intel.com Signed-off-by: Jani Nikula <jani.nikula@intel.com>
2024-07-09drm/i915/display: Cache adpative sync caps to use it laterMitul Golani
Add new member to struct intel_dp to cache support of Adaptive Sync SDP capabilities and use it whenever required to avoid HW access to read capability during each atomic commit. -v2: - Squash both the patches Signed-off-by: Mitul Golani <mitulkumar.ajitkumar.golani@intel.com> Reviewed-by: Arun R Murthy <arun.r.murthy@intel.com> Link: https://patchwork.freedesktop.org/patch/msgid/20240704082638.2302092-2-mitulkumar.ajitkumar.golani@intel.com Signed-off-by: Rodrigo Vivi <rodrigo.vivi@intel.com>
2024-06-25drm/i915/alpm: Make crtc_state as const in intel_alpm_compute_paramsJouni Högander
Intel_alpm_compute_params doesn't change crtc_state. Let's convert it as const. Signed-off-by: Jouni Högander <jouni.hogander@intel.com> Reviewed-by: Animesh Manna <animesh.manna@intel.com> Link: https://patchwork.freedesktop.org/patch/msgid/20240619062131.4021196-8-jouni.hogander@intel.com
2024-06-19intel_alpm: Fix wrong offset for PORT_ALPM_* registersJouni Högander
PORT_ALPM_* registers are using MMIO_TRANS2 macro. This is not correct as they are port register. Use _PORT_MMIO instead. Fixes: 4ee30a448255 ("drm/i915/alpm: Add ALPM register definitions") Signed-off-by: Jouni Högander <jouni.hogander@intel.com> Reviewed-by: Animesh Manna <animesh.manna@intel.com> Link: https://patchwork.freedesktop.org/patch/msgid/20240618053026.3268759-10-jouni.hogander@intel.com
2024-06-19drm/i915/alpm: Fix port clock usage in AUX Less wake time calculationJouni Högander
Port clock is link rate in 10 kbit/s units. Take this into account when calculating AUX Less wake time. Fixes: da6a9836ac09 ("drm/i915/psr: Calculate aux less wake time") Signed-off-by: Jouni Högander <jouni.hogander@intel.com> Reviewed-by: Animesh Manna <animesh.manna@intel.com> Link: https://patchwork.freedesktop.org/patch/msgid/20240618053026.3268759-4-jouni.hogander@intel.com
2024-06-11drm/i915/alpm: Share alpm support checks with PSR codeJouni Högander
Convert intel_alpm_aux_wake_supported and intel_alpm_aux_less_wake_supported as non-static. Use them in intel_psr.c instead of local variables. Signed-off-by: Jouni Högander <jouni.hogander@intel.com> Reviewed-by: Animesh Manna <animesh.manna@intel.com> Link: https://patchwork.freedesktop.org/patch/msgid/20240607134917.1327574-8-jouni.hogander@intel.com
2024-06-11drm/i915/alpm: Write also AUX Less Wake lines into ALPM_CTLJouni Högander
Currently AUX Less Wake lines are not written into ALPM_CTL. Fix this. Fixes: 1ccbf135862b ("drm/i915/psr: Enable ALPM on source side for eDP Panel replay") Signed-off-by: Jouni Högander <jouni.hogander@intel.com> Reviewed-by: Animesh Manna <animesh.manna@intel.com> Link: https://patchwork.freedesktop.org/patch/msgid/20240607134917.1327574-3-jouni.hogander@intel.com
2024-06-11drm/i915/alpm: Do not use fast_wake_lines for aux less wake timeJouni Högander
We want to have own variables for fast wake lines and aux less wake time. It might be needed to choose if we can enable Panel Replay Selective Update or PSR2. Also currently aux less wake time is overwritten by calculated fast wake time. v2:use aux less wake time in intel_alpm_lobf_compute_config Fixes: da6a9836ac09 ("drm/i915/psr: Calculate aux less wake time") Signed-off-by: Jouni Högander <jouni.hogander@intel.com> Reviewed-by: Animesh Manna <animesh.manna@intel.com> Link: https://patchwork.freedesktop.org/patch/msgid/20240607134917.1327574-2-jouni.hogander@intel.com
2024-05-31drm/i915/alpm: Add debugfs for LOBFAnimesh Manna
For validation purpose add debugfs for LOBF. v1: Initial version. v2: Add aux-wake/less info along with lobf status. [Jouni] Reviewed-by: Jouni Högander <jouni.hogander@intel.com> Signed-off-by: Animesh Manna <animesh.manna@intel.com> Link: https://patchwork.freedesktop.org/patch/msgid/20240529200742.1694401-7-animesh.manna@intel.com
2024-05-31drm/i915/alpm: Enable lobf from source in ALPM_CTLAnimesh Manna
Set the Link Off Between Frames Enable bit in ALPM_CTL register. Note: Lobf need to be enabled adaptive sync fixed refresh mode where vmin = vmax = flipline, which will arise after cmmr feature enablement. Will add enabling sequence in a separate patch. v1: Initial version. v2: Condition check modified in alpm_configure(). [Jouni] Reviewed-by: Jouni Högander <jouni.hogander@intel.com> Signed-off-by: Animesh Manna <animesh.manna@intel.com> Link: https://patchwork.freedesktop.org/patch/msgid/20240529200742.1694401-6-animesh.manna@intel.com
2024-05-31drm/i915/alpm: Add compute config for lobfAnimesh Manna
Link Off Between Active Frames, is a new feature for eDP that allows the panel to go to lower power state after transmission of data. This is a feature on top of ALPM, AS SDP. Add compute config during atomic-check phase. v1: RFC version. v2: Add separate flag for auxless-alpm. [Jani] v3: - intel_dp->lobf_supported replaced with crtc_state->has_lobf. [Jouni] - Add DISPLAY_VER() check. [Jouni] - Modify function name of get_aux_less_status. [Jani] v4: Add enum alpm_mode to hold the aux-wake/less capability. v5: Add alpm_dpcd to intel_dp and use aux_wake_supported()/ aux_less_wake_supported() instead of enum alpm_mode. [Jouni] Reviewed-by: Jouni Högander <jouni.hogander@intel.com> Signed-off-by: Animesh Manna <animesh.manna@intel.com> Link: https://patchwork.freedesktop.org/patch/msgid/20240529200742.1694401-5-animesh.manna@intel.com
2024-05-31drm/i915/alpm: Move alpm related code to a new fileAnimesh Manna
Move ALPM feature related code as it will be used for non-psr panel also thorugh LOBF feature. v1: Initial version. v2: Correct ordering in makefile. [Jani] Reviewed-by: Jouni Högander <jouni.hogander@intel.com> Signed-off-by: Animesh Manna <animesh.manna@intel.com> Link: https://patchwork.freedesktop.org/patch/msgid/20240529200742.1694401-3-animesh.manna@intel.com
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