From: Ville Syrjälä <ville.syrjala@xxxxxxxxxxxxxxx>
Extract the seamless DRRS min refresh rate from the VBT.
v2: Do a version check
Reviewed-by: Jani Nikula <jani.nikula@xxxxxxxxx>
Signed-off-by: Ville Syrjälä <ville.syrjala@xxxxxxxxxxxxxxx>
---
drivers/gpu/drm/i915/display/intel_bios.c | 9 ++++++++-
drivers/gpu/drm/i915/i915_drv.h | 1 +
2 files changed, 9 insertions(+), 1 deletion(-)
diff --git a/drivers/gpu/drm/i915/display/intel_bios.c b/drivers/gpu/drm/i915/display/intel_bios.c
index 1b84c0e55497..f1afc267b5f9 100644
--- a/drivers/gpu/drm/i915/display/intel_bios.c
+++ b/drivers/gpu/drm/i915/display/intel_bios.c
@@ -833,6 +833,7 @@ parse_lfp_data(struct drm_i915_private *i915)
const struct bdb_lvds_lfp_data *data;
const struct bdb_lvds_lfp_data_tail *tail;
const struct bdb_lvds_lfp_data_ptrs *ptrs;
+ int panel_type = i915->vbt.panel_type;
ptrs = find_section(i915, BDB_LVDS_LFP_DATA_PTRS);
if (!ptrs)
@@ -849,7 +850,13 @@ parse_lfp_data(struct drm_i915_private *i915)
if (!tail)
return;
- (void)tail;
+ if (i915->vbt.version >= 188) {
+ i915->vbt.seamless_drrs_min_refresh_rate =
+ tail->seamless_drrs_min_refresh_rate[panel_type];
+ drm_dbg_kms(&i915->drm,
+ "Seamless DRRS min refresh rate: %d Hz\n",
+ i915->vbt.seamless_drrs_min_refresh_rate);
+ }
}
static void
diff --git a/drivers/gpu/drm/i915/i915_drv.h b/drivers/gpu/drm/i915/i915_drv.h
index 24111bf42ce0..c2a31ca56232 100644
--- a/drivers/gpu/drm/i915/i915_drv.h
+++ b/drivers/gpu/drm/i915/i915_drv.h
@@ -327,6 +327,7 @@ struct intel_vbt_data {
bool override_afc_startup;
u8 override_afc_startup_val;
+ u8 seamless_drrs_min_refresh_rate;
enum drrs_type drrs_type;
struct {
--
2.35.1
