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drm/i915/wm: don't use method1 in Xe3p_LPD onwards

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Starting from display version 35, we don't need to use method1 to
calculate the watermark values anymore, so skip it.

Bspec: 68985
Signed-off-by: Luca Coelho <luciano.coelho@intel.com>
Reviewed-by: Shekhar Chauhan <shekhar.chauhan@intel.com>
Link: https://patch.msgid.link/20251103-xe3p_lpd-basic-enabling-v3-14-00e87b510ae7@intel.com
Signed-off-by: Gustavo Sousa <gustavo.sousa@intel.com>
This commit is contained in:
Luca Coelho
2025-11-05 11:07:03 -03:00
committed by Gustavo Sousa
parent 6171b78ac2
commit 979c7cbd6c
1 changed files with 2 additions and 0 deletions
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2
drivers/gpu/drm/i915/display/skl_watermark.c
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@@ -1812,6 +1812,8 @@ static void skl_compute_plane_wm(const struct intel_crtc_state *crtc_state,
if (wp->y_tiled) {
selected_result = max_fixed16(method2, wp->y_tile_minimum);
} else if (DISPLAY_VER(display) >= 35) {
selected_result = method2;
} else {
if ((wp->cpp * crtc_state->hw.pipe_mode.crtc_htotal /
wp->dbuf_block_size < 1) &&