From: Ville Syrjälä <ville.syrj...@linux.intel.com>
Abstract the bit extraction from the VBT per-panel bitfields
slightly.
Signed-off-by: Ville Syrjälä <ville.syrj...@linux.intel.com>
---
drivers/gpu/drm/i915/display/intel_bios.c | 31 +++++++++++++------
drivers/gpu/drm/i915/display/intel_vbt_defs.h | 3 --
2 files changed, 21 insertions(+), 13 deletions(-)
diff --git a/drivers/gpu/drm/i915/display/intel_bios.c
b/drivers/gpu/drm/i915/display/intel_bios.c
index 807184fd5618..76e86358adb9 100644
--- a/drivers/gpu/drm/i915/display/intel_bios.c
+++ b/drivers/gpu/drm/i915/display/intel_bios.c
@@ -743,6 +743,16 @@ static int get_panel_type(struct drm_i915_private *i915,
return panel_types[i].panel_type;
}
+static unsigned int panel_bits(unsigned int value, int panel_type, int
num_bits)
+{
+ return (value >> (panel_type * num_bits)) & (BIT(num_bits) - 1);
+}
+
+static bool panel_bool(unsigned int value, int panel_type)
+{
+ return panel_bits(value, panel_type, 1);
+}
+
/* Parse general panel options */
static void
parse_panel_options(struct drm_i915_private *i915,
@@ -766,8 +776,8 @@ parse_panel_options(struct drm_i915_private *i915,
if (get_blocksize(lvds_options) < 16)
return;
- drrs_mode = (lvds_options->dps_panel_type_bits
- >> (panel_type * 2)) & MODE_MASK;
+ drrs_mode = panel_bits(lvds_options->dps_panel_type_bits,
+ panel_type, 2);
/*
* VBT has static DRRS = 0 and seamless DRRS = 2.
* The below piece of code is required to adjust vbt.drrs_type
@@ -1313,7 +1323,7 @@ parse_power_conservation_features(struct drm_i915_private
*i915,
if (!power)
return;
- panel->vbt.psr.enable = power->psr & BIT(panel_type);
+ panel->vbt.psr.enable = panel_bool(power->psr, panel_type);
/*
* If DRRS is not supported, drrs_type has to be set to 0.
@@ -1321,22 +1331,23 @@ parse_power_conservation_features(struct
drm_i915_private *i915,
* static DRRS is 0 and DRRS not supported is represented by
* power->drrs & BIT(panel_type)=false
*/
- if (!(power->drrs & BIT(panel_type)) && panel->vbt.drrs_type !=
DRRS_TYPE_NONE) {
+ if (!panel_bool(power->drrs, panel_type) && panel->vbt.drrs_type !=
DRRS_TYPE_NONE) {
/*
* FIXME Should DMRRS perhaps be treated as seamless
* but without the automatic downclocking?
*/
- if (power->dmrrs & BIT(panel_type))
+ if (panel_bool(power->dmrrs, panel_type))
panel->vbt.drrs_type = DRRS_TYPE_STATIC;
else
panel->vbt.drrs_type = DRRS_TYPE_NONE;
}
if (i915->vbt.version >= 232)
- panel->vbt.edp.hobl = power->hobl & BIT(panel_type);
+ panel->vbt.edp.hobl = panel_bool(power->hobl, panel_type);
if (i915->vbt.version >= 233)
- panel->vbt.vrr = power->vrr_feature_enabled & BIT(panel_type);
+ panel->vbt.vrr = panel_bool(power->vrr_feature_enabled,
+ panel_type);
}
static void
@@ -1352,7 +1363,7 @@ parse_edp(struct drm_i915_private *i915,
if (!edp)
return;
- switch ((edp->color_depth >> (panel_type * 2)) & 3) {
+ switch (panel_bits(edp->color_depth, panel_type, 2)) {
case EDP_18BPP:
panel->vbt.edp.bpp = 18;
break;
@@ -1463,7 +1474,7 @@ parse_edp(struct drm_i915_private *i915,
}
panel->vbt.edp.drrs_msa_timing_delay =
- (edp->sdrrs_msa_timing_delay >> (panel_type * 2)) & 3;
+ panel_bits(edp->sdrrs_msa_timing_delay, panel_type, 2);
if (i915->vbt.version >= 244)
panel->vbt.edp.max_link_rate =
@@ -1546,7 +1557,7 @@ parse_psr(struct drm_i915_private *i915,
if (i915->vbt.version >= 226) {
u32 wakeup_time = psr->psr2_tp2_tp3_wakeup_time;
- wakeup_time = (wakeup_time >> (2 * panel_type)) & 0x3;
+ wakeup_time = panel_bits(wakeup_time, panel_type, 2);
switch (wakeup_time) {
case 0:
wakeup_time = 500;
diff --git a/drivers/gpu/drm/i915/display/intel_vbt_defs.h
b/drivers/gpu/drm/i915/display/intel_vbt_defs.h
index f8e5097222f2..3766c09bd65d 100644
--- a/drivers/gpu/drm/i915/display/intel_vbt_defs.h
+++ b/drivers/gpu/drm/i915/display/intel_vbt_defs.h
@@ -704,9 +704,6 @@ struct bdb_edp {
* Block 40 - LFP Data Block
*/
-/* Mask for DRRS / Panel Channel / SSC / BLT control bits extraction */
-#define MODE_MASK 0x3
-
struct bdb_lvds_options {
u8 panel_type;
u8 panel_type2; /* 212 */
--
2.35.1
