[PATCH v2 2/4] drm/i915/display: Avoid unnecessarily calling intel_cx0_get_owned_lane_mask

[Gustavo Sousa]

Quoting Jouni Högander (2025-07-22 07:13:15-03:00)
>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 at intel.com>

Reviewed-by: Gustavo Sousa <gustavo.sousa at intel.com>

>---
> drivers/gpu/drm/i915/display/intel_cx0_phy.c | 3 ++-
> 1 file changed, 2 insertions(+), 1 deletion(-)
>
>diff --git a/drivers/gpu/drm/i915/display/intel_cx0_phy.c b/drivers/gpu/drm/i915/display/intel_cx0_phy.c
>index 2b0305bb04cd..2993dabdbee6 100644
>--- a/drivers/gpu/drm/i915/display/intel_cx0_phy.c
>+++ b/drivers/gpu/drm/i915/display/intel_cx0_phy.c
>@@ -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;
>-- 
>2.43.0
>