@@ -1672,6 +1672,9 @@ struct intel_vbt_data {
const u8 *sequence[MIPI_SEQ_MAX];
} dsi;
+ /* HPD as wakesoure for DC9 BXT */
+ bool hpd_wakeup_enabled;
+
int crt_ddc_pin;
int child_dev_num;
@@ -561,6 +561,10 @@ static int intel_bios_ssc_frequency(struct drm_i915_private *dev_priv,
if (driver->lvds_config == BDB_DRIVER_FEATURE_EDP)
dev_priv->vbt.edp.support = 1;
+ dev_priv->vbt.hpd_wakeup_enabled = driver->hpd_wakeup_source;
+ DRM_DEBUG_KMS("HPD as wakeup source:%s\n",
+ yesno(driver->hpd_wakeup_source));
+
DRM_DEBUG_KMS("DRRS State Enabled:%d\n", driver->drrs_enabled);
/*
* If DRRS is not supported, drrs_type has to be set to 0.
@@ -563,7 +563,8 @@ struct bdb_driver_features {
u16 tbt_enabled:1;
u16 psr_enabled:1;
u16 ips_enabled:1;
- u16 reserved3:4;
+ u16 reserved3:3;
+ u16 hpd_wakeup_source:1;
u16 pc_feature_valid:1;
} __packed;
To support hpd during sleep a new feature flag is added in vbt and also in dev_priv for enabling/disabling inside driver. By default this feature will be disabled and based on oem request this feature can be enabled by changing vbt feature flag. v1: Initial version as RFC. v2: Based on review comments from Jani, - Used bool instead of enum for hpd feature flag. - Updating feature flag at the first place based on vbt entry. v3: Based on review comment from Jani, - removed the if condition check, directly update driver flag with vbt feature flag. Signed-off-by: Animesh Manna <animesh.manna@intel.com> Signed-off-by: A.Sunil Kamath <sunil.kamath@intel.com> --- drivers/gpu/drm/i915/i915_drv.h | 3 +++ drivers/gpu/drm/i915/intel_bios.c | 4 ++++ drivers/gpu/drm/i915/intel_vbt_defs.h | 3 ++- 3 files changed, 9 insertions(+), 1 deletion(-)