drm/i915/psr: remove unused lines_to_wait vbt info

The lines_to_wait info from VBT is never used. Remove.

Cc: José Roberto de Souza <jose.souza@intel.com>
Cc: Jouni Högander <jouni.hogander@intel.com>
Cc: Ville Syrjälä <ville.syrjala@linux.intel.com>
Signed-off-by: Jani Nikula <jani.nikula@intel.com>
Reviewed-by: José Roberto de Souza <jose.souza@intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20220112112715.1234366-1-jani.nikula@intel.com

drivers/gpu/drm/i915/display/intel_bios.c

@@ -905,26 +905,6 @@ parse_psr(struct drm_i915_private *i915, const struct bdb_header *bdb)
 	i915->vbt.psr.idle_frames = psr_table->idle_frames < 0 ? 0 :
 		psr_table->idle_frames > 15 ? 15 : psr_table->idle_frames;
 
-	switch (psr_table->lines_to_wait) {
-	case 0:
-		i915->vbt.psr.lines_to_wait = PSR_0_LINES_TO_WAIT;
-		break;
-	case 1:
-		i915->vbt.psr.lines_to_wait = PSR_1_LINE_TO_WAIT;
-		break;
-	case 2:
-		i915->vbt.psr.lines_to_wait = PSR_4_LINES_TO_WAIT;
-		break;
-	case 3:
-		i915->vbt.psr.lines_to_wait = PSR_8_LINES_TO_WAIT;
-		break;
-	default:
-		drm_dbg_kms(&i915->drm,
-			    "VBT has unknown PSR lines to wait %u\n",
-			    psr_table->lines_to_wait);
-		break;
-	}
-
 	/*
 	 * New psr options 0=500us, 1=100us, 2=2500us, 3=0us
 	 * Old decimal value is wake up time in multiples of 100 us.

drivers/gpu/drm/i915/i915_drv.h

@@ -516,13 +516,6 @@ i915_fence_timeout(const struct drm_i915_private *i915)
 /* Amount of PSF GV points, BSpec precisely defines this */
 #define I915_NUM_PSF_GV_POINTS 3
 
-enum psr_lines_to_wait {
-	PSR_0_LINES_TO_WAIT = 0,
-	PSR_1_LINE_TO_WAIT,
-	PSR_4_LINES_TO_WAIT,
-	PSR_8_LINES_TO_WAIT
-};
-
 struct intel_vbt_data {
 	/* bdb version */
 	u16 version;
@@ -562,7 +555,6 @@ struct intel_vbt_data {
 		bool full_link;
 		bool require_aux_wakeup;
 		int idle_frames;
-		enum psr_lines_to_wait lines_to_wait;
 		int tp1_wakeup_time_us;
 		int tp2_tp3_wakeup_time_us;
 		int psr2_tp2_tp3_wakeup_time_us;