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drm/i915/alpm: Add own define for LFPS count

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Add own define for LFPS count and use it for the configuration. This new
define will be used for calculating ALPM parameters as well.

Signed-off-by: Jouni Högander <jouni.hogander@intel.com>
Reviewed-by: Animesh Manna <animesh.manna@intel.com>
Link: https://lore.kernel.org/r/20250829053929.3585636-3-jouni.hogander@intel.com
This commit is contained in:
Jouni Högander 2025-08-29 08:39:26 +03:00
parent 3b5b2567f8
commit e9c62c8654
1 changed files with 3 additions and 1 deletions
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4
drivers/gpu/drm/i915/display/intel_alpm.c
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@ -22,6 +22,8 @@
(SILENCE_PERIOD_MAX_TIME - \
SILENCE_PERIOD_MIN_TIME) / 2)
#define LFPS_CYCLE_COUNT 10
bool intel_alpm_aux_wake_supported(struct intel_dp *intel_dp)
{
return intel_dp->alpm_dpcd & DP_ALPM_CAP;
@ -403,7 +405,7 @@ void intel_alpm_port_configure(struct intel_dp *intel_dp,
PORT_ALPM_CTL_MAX_PHY_SWING_HOLD(0) |
PORT_ALPM_CTL_SILENCE_PERIOD(
intel_dp->alpm_parameters.silence_period_sym_clocks);
lfps_ctl_val = PORT_ALPM_LFPS_CTL_LFPS_CYCLE_COUNT(10) |
lfps_ctl_val = PORT_ALPM_LFPS_CTL_LFPS_CYCLE_COUNT(LFPS_CYCLE_COUNT) |
PORT_ALPM_LFPS_CTL_LFPS_HALF_CYCLE_DURATION(
intel_dp->alpm_parameters.lfps_half_cycle_num_of_syms) |
PORT_ALPM_LFPS_CTL_FIRST_LFPS_HALF_CYCLE_DURATION(