diff options
| author | Shobhit Kumar <shobhit.kumar@intel.com> | 2013-08-27 16:12:25 +0400 |
|---|---|---|
| committer | Daniel Vetter <daniel.vetter@ffwll.ch> | 2013-09-04 19:34:50 +0400 |
| commit | d17c5443cf445b308a207cf127209f4702791323 (patch) | |
| tree | 7b1b10c760b5802e5c53f31216fc527cb215db76 | |
| parent | 4ce8c9a720c566a4ce7b782ddd5df90d66f0ba85 (diff) | |
| download | linux-d17c5443cf445b308a207cf127209f4702791323.tar.xz | |
drm/i915: Parse the MIPI related VBT Block and store relevant info
Initial parsing of the VBT MIPI block. For now, just store the panel id
if found.
Note: Again there seems to be no documentation for this piece of lore.
The doc situation for byt+ is just a bad joke :(
Signed-off-by: Shobhit Kumar <shobhit.kumar@intel.com>
Signed-off-by: Jani Nikula <jani.nikula@intel.com>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
| -rw-r--r-- | drivers/gpu/drm/i915/i915_drv.h | 5 | ||||
| -rw-r--r-- | drivers/gpu/drm/i915/intel_bios.c | 16 | ||||
| -rw-r--r-- | drivers/gpu/drm/i915/intel_bios.h | 41 |
3 files changed, 62 insertions, 0 deletions
diff --git a/drivers/gpu/drm/i915/i915_drv.h b/drivers/gpu/drm/i915/i915_drv.h index e2628579dcbe..2cf9dabbfe5d 100644 --- a/drivers/gpu/drm/i915/i915_drv.h +++ b/drivers/gpu/drm/i915/i915_drv.h @@ -1065,6 +1065,11 @@ struct intel_vbt_data { int edp_bpp; struct edp_power_seq edp_pps; + /* MIPI DSI */ + struct { + u16 panel_id; + } dsi; + 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 53f2bed8bc5f..6668873fb3a8 100644 --- a/drivers/gpu/drm/i915/intel_bios.c +++ b/drivers/gpu/drm/i915/intel_bios.c @@ -569,6 +569,21 @@ parse_edp(struct drm_i915_private *dev_priv, struct bdb_header *bdb) } static void +parse_mipi(struct drm_i915_private *dev_priv, struct bdb_header *bdb) +{ + struct bdb_mipi *mipi; + + mipi = find_section(bdb, BDB_MIPI); + if (!mipi) { + DRM_DEBUG_KMS("No MIPI BDB found"); + return; + } + + /* XXX: add more info */ + dev_priv->vbt.dsi.panel_id = mipi->panel_id; +} + +static void parse_device_mapping(struct drm_i915_private *dev_priv, struct bdb_header *bdb) { @@ -745,6 +760,7 @@ 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_mipi(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 e088d6f0956a..6e9250eb9c2c 100644 --- a/drivers/gpu/drm/i915/intel_bios.h +++ b/drivers/gpu/drm/i915/intel_bios.h @@ -104,6 +104,7 @@ struct vbios_data { #define BDB_LVDS_LFP_DATA 42 #define BDB_LVDS_BACKLIGHT 43 #define BDB_LVDS_POWER 44 +#define BDB_MIPI 50 #define BDB_SKIP 254 /* VBIOS private block, ignore */ struct bdb_general_features { @@ -618,4 +619,44 @@ int intel_parse_bios(struct drm_device *dev); #define PORT_IDPC 8 #define PORT_IDPD 9 +/* MIPI DSI panel info */ +struct bdb_mipi { + u16 panel_id; + u16 bridge_revision; + + /* General params */ + u32 dithering:1; + u32 bpp_pixel_format:1; + u32 rsvd1:1; + u32 dphy_valid:1; + u32 resvd2:28; + + u16 port_info; + u16 rsvd3:2; + u16 num_lanes:2; + u16 rsvd4:12; + + /* DSI config */ + u16 virt_ch_num:2; + u16 vtm:2; + u16 rsvd5:12; + + u32 dsi_clock; + u32 bridge_ref_clk; + u16 rsvd_pwr; + + /* Dphy Params */ + u32 prepare_cnt:5; + u32 rsvd6:3; + u32 clk_zero_cnt:8; + u32 trail_cnt:5; + u32 rsvd7:3; + u32 exit_zero_cnt:6; + u32 rsvd8:2; + + u32 hl_switch_cnt; + u32 lp_byte_clk; + u32 clk_lane_switch_cnt; +} __attribute__((packed)); + #endif /* _I830_BIOS_H_ */ |