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git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git
kernel
os
linux
drm/i915/alpm: Add own define for LFPS count
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
+3
-1
+3
-1
drivers/gpu/drm/i915/display/intel_alpm.c
+3
-1
drivers/gpu/drm/i915/display/intel_alpm.c
···
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(SILENCE_PERIOD_MAX_TIME - \
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SILENCE_PERIOD_MIN_TIME) / 2)
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+
#define LFPS_CYCLE_COUNT 10
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+
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bool intel_alpm_aux_wake_supported(struct intel_dp *intel_dp)
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{
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return intel_dp->alpm_dpcd & DP_ALPM_CAP;
···
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PORT_ALPM_CTL_MAX_PHY_SWING_HOLD(0) |
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PORT_ALPM_CTL_SILENCE_PERIOD(
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intel_dp->alpm_parameters.silence_period_sym_clocks);
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-
lfps_ctl_val = PORT_ALPM_LFPS_CTL_LFPS_CYCLE_COUNT(10) |
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+
lfps_ctl_val = PORT_ALPM_LFPS_CTL_LFPS_CYCLE_COUNT(LFPS_CYCLE_COUNT) |
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PORT_ALPM_LFPS_CTL_LFPS_HALF_CYCLE_DURATION(
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intel_dp->alpm_parameters.lfps_half_cycle_num_of_syms) |
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PORT_ALPM_LFPS_CTL_FIRST_LFPS_HALF_CYCLE_DURATION(