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drm/i915/display: Avoid unnecessarily calling intel_cx0_get_owned_lane_mask

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Currently we are always calling intel_cx0_get_owned_lane_mask when
intel_lnl_mac_transmit_lfps is called. Avoid this in cases where it's not
needed.

Signed-off-by: Jouni Högander <jouni.hogander@intel.com>
Reviewed-by: Gustavo Sousa <gustavo.sousa@intel.com>
Link: https://lore.kernel.org/r/20250722125618.1842615-3-jouni.hogander@intel.com
This commit is contained in:
Jouni Högander 2025-07-22 15:56:16 +03:00
parent 8265ce0e0e
commit d487ed7e2b
1 changed files with 2 additions and 1 deletions
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3
drivers/gpu/drm/i915/display/intel_cx0_phy.c
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@ -3239,13 +3239,14 @@ void intel_lnl_mac_transmit_lfps(struct intel_encoder *encoder,
const struct intel_crtc_state *crtc_state)
{
struct intel_display *display = to_intel_display(encoder);
u8 owned_lane_mask = intel_cx0_get_owned_lane_mask(encoder);
int i;
u8 owned_lane_mask;
if (DISPLAY_VER(display) < 20 ||
!intel_alpm_is_alpm_aux_less(enc_to_intel_dp(encoder), crtc_state))
return;
owned_lane_mask = intel_cx0_get_owned_lane_mask(encoder);
for (i = 0; i < 4; i++) {
int tx = i % 2 + 1;
u8 lane_mask = i < 2 ? INTEL_CX0_LANE0 : INTEL_CX0_LANE1;