From: Shobhit Kumar shobhit.kumar@intel.com
Parse and store useful information in i915_dev_private
Signed-off-by: Shobhit Kumar shobhit.kumar@intel.com
v2: Add to new vbt struct and call them psr_*
Signed-off-by: Rodrigo Vivi rodrigo.vivi@gmail.com --- drivers/gpu/drm/i915/i915_drv.h | 7 +++++++ drivers/gpu/drm/i915/intel_bios.c | 30 ++++++++++++++++++++++++++++++ drivers/gpu/drm/i915/intel_bios.h | 20 +++++++++++++++++++- 3 files changed, 56 insertions(+), 1 deletion(-)
diff --git a/drivers/gpu/drm/i915/i915_drv.h b/drivers/gpu/drm/i915/i915_drv.h index 7adb6d0..1b52dca 100644 --- a/drivers/gpu/drm/i915/i915_drv.h +++ b/drivers/gpu/drm/i915/i915_drv.h @@ -877,6 +877,13 @@ struct intel_vbt_data { int edp_bpp; struct edp_power_seq edp_pps;
+ /* eDP PSR*/ + u8 psr_full_link_state; + u8 psr_wait_lines; + u8 psr_idle_frames; + u16 psr_wakeup_tp1; + u16 psr_wakeup_tp2_tp3; + int crt_ddc_pin;
int child_dev_num; diff --git a/drivers/gpu/drm/i915/intel_bios.c b/drivers/gpu/drm/i915/intel_bios.c index e145151..2a3fa8b 100644 --- a/drivers/gpu/drm/i915/intel_bios.c +++ b/drivers/gpu/drm/i915/intel_bios.c @@ -381,6 +381,35 @@ parse_general_definitions(struct drm_i915_private *dev_priv, } }
+ +static void +parse_edp_psr(struct drm_i915_private *dev_priv, struct bdb_header *bdb) +{ + struct bdb_psr_features *psr; + struct bdb_lvds_options *lvds_opts; + int index = 0; + lvds_opts = find_section(bdb, BDB_LVDS_OPTIONS); + if (!lvds_opts) { + DRM_DEBUG_KMS("No LVDS Options block found.\n"); + return; + } + + index = lvds_opts->panel_type; + + psr = find_section(bdb, BDB_PSR_FEATURES); + if (!psr) { + DRM_DEBUG_KMS("No PSR feature block found.\n"); + return; + } + + dev_priv->vbt.psr_full_link_state = psr[index].link_disable; + dev_priv->vbt.psr_wait_lines = psr[index].wait_lines; + dev_priv->vbt.psr_idle_frames = psr[index].idle_frames; + dev_priv->vbt.psr_wakeup_tp1 = psr[index].wakeup_tp1; + dev_priv->vbt.psr_wakeup_tp2_tp3 = psr[index].wakeup_tp2; +} + + static void parse_sdvo_device_mapping(struct drm_i915_private *dev_priv, struct bdb_header *bdb) @@ -740,6 +769,7 @@ intel_parse_bios(struct drm_device *dev) parse_device_mapping(dev_priv, bdb); parse_driver_features(dev_priv, bdb); parse_edp(dev_priv, bdb); + parse_edp_psr(dev_priv, bdb);
if (bios) pci_unmap_rom(pdev, bios); diff --git a/drivers/gpu/drm/i915/intel_bios.h b/drivers/gpu/drm/i915/intel_bios.h index 36e57f9..c1d39de 100644 --- a/drivers/gpu/drm/i915/intel_bios.h +++ b/drivers/gpu/drm/i915/intel_bios.h @@ -80,7 +80,7 @@ struct vbios_data { #define BDB_EXT_MMIO_REGS 6 #define BDB_SWF_IO 7 #define BDB_SWF_MMIO 8 -#define BDB_DOT_CLOCK_TABLE 9 +#define BDB_PSR_FEATURES 9 #define BDB_MODE_REMOVAL_TABLE 10 #define BDB_CHILD_DEVICE_TABLE 11 #define BDB_DRIVER_FEATURES 12 @@ -263,6 +263,24 @@ struct bdb_lvds_options { u8 rsvd4; } __attribute__((packed));
+struct bdb_psr_features { + /* psr_enable byte */ + u8 link_disable:1; + u8 require_aux:1; + u8 rsvd1:6; + + /* panel wait times */ + u8 idle_frames:4; + u8 wait_lines:3; + u8 rsvd2:1; + + /* TP1 wakeup time */ + u16 wakeup_tp1; + + /* TP2 wakeup time */ + u16 wakeup_tp2; +} __attribute__((packed)); + /* LFP pointer table contains entries to the struct below */ struct bdb_lvds_lfp_data_ptr { u16 fp_timing_offset; /* offsets are from start of bdb */