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drm/i915/alpm: Add intel_psr_need_alpm() to simplify alpm check

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Simplify the alpm check which will be used multiple places like
source configuration, sink enablement etc.

Signed-off-by: Animesh Manna <animesh.manna@intel.com>
Reviewed-by: Jouni Högander <jouni.hogander@intel.com>
Link: https://lore.kernel.org/r/20250423092334.2294483-11-animesh.manna@intel.com
This commit is contained in:
Animesh Manna 2025-04-23 14:53:33 +05:30
parent 2063174c22
commit 554698b826
3 changed files with 10 additions and 2 deletions
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5
drivers/gpu/drm/i915/display/intel_alpm.c
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@ -13,6 +13,7 @@
#include "intel_display_types.h"
#include "intel_dp.h"
#include "intel_dp_aux.h"
#include "intel_psr.h"
#include "intel_psr_regs.h"
bool intel_alpm_aux_wake_supported(struct intel_dp *intel_dp)
@ -331,8 +332,8 @@ static void lnl_alpm_configure(struct intel_dp *intel_dp,
enum port port = dp_to_dig_port(intel_dp)->base.port;
u32 alpm_ctl;
if (DISPLAY_VER(display) < 20 ||
(!crtc_state->has_sel_update && !intel_dp_is_edp(intel_dp)))
if (DISPLAY_VER(display) < 20 || (!intel_psr_needs_alpm(intel_dp, crtc_state) &&
!crtc_state->has_lobf))
return;
mutex_lock(&intel_dp->alpm_parameters.lock);

6
drivers/gpu/drm/i915/display/intel_psr.c
View File

@ -4192,3 +4192,9 @@ void intel_psr_connector_debugfs_add(struct intel_connector *connector)
debugfs_create_file("i915_psr_status", 0444, root,
connector, &i915_psr_status_fops);
}
bool intel_psr_needs_alpm(struct intel_dp *intel_dp, const struct intel_crtc_state *crtc_state)
{
return intel_dp_is_edp(intel_dp) && (crtc_state->has_sel_update ||
crtc_state->has_panel_replay);
}

1
drivers/gpu/drm/i915/display/intel_psr.h
View File

@ -75,5 +75,6 @@ void intel_psr_trigger_frame_change_event(struct intel_dsb *dsb,
struct intel_crtc *crtc);
void intel_psr_connector_debugfs_add(struct intel_connector *connector);
void intel_psr_debugfs_register(struct intel_display *display);
bool intel_psr_needs_alpm(struct intel_dp *intel_dp, const struct intel_crtc_state *crtc_state);
#endif /* __INTEL_PSR_H__ */