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drm/i915: Update VBT data structures to have MIPI block enhancements 

MIPI Block #52 which provides configuration details for the MIPI panel
including dphy settings as per panel and tcon specs

Block #53 gives information on panel enable sequences

v2: Address review comemnts from Jani
    - Move panel ids from intel_dsi.h to intel_bios.h
    - bdb_mipi_config structure improvements for cleaner code
    - Adding units for the pps delays, all in ms
    - change data structure to be more cleaner and simple

v3: Corrected the unit for pps delays as 100us

Signed-off-by: Shobhit Kumar <shobhit.kumar@intel.com>
Reviewed-by: Jani Nikula <jani.nikula@intel.com>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
This commit is contained in:
Shobhit Kumar 2014-02-28 11:18:46 +05:30 committed by Daniel Vetter
parent 8232644ccf
commit ea9a6bafcf
2 changed files with 144 additions and 28 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

4
drivers/gpu/drm/i915/intel_bios.c
View File

@ -599,14 +599,14 @@ parse_mipi(struct drm_i915_private *dev_priv, struct bdb_header *bdb)
{
struct bdb_mipi *mipi;
mipi = find_section(bdb, BDB_MIPI);
mipi = find_section(bdb, BDB_MIPI_CONFIG);
if (!mipi) {
DRM_DEBUG_KMS("No MIPI BDB found");
return;
}
/* XXX: add more info */
dev_priv->vbt.dsi.panel_id = mipi->panel_id;
dev_priv->vbt.dsi.panel_id = MIPI_DSI_GENERIC_PANEL_ID;
}
static void parse_ddi_port(struct drm_i915_private *dev_priv, enum port port,

168
drivers/gpu/drm/i915/intel_bios.h
View File

@ -104,7 +104,8 @@ 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_MIPI_CONFIG 52
#define BDB_MIPI_SEQUENCE 53
#define BDB_SKIP 254 /* VBIOS private block, ignore */
struct bdb_general_features {
@ -711,44 +712,159 @@ int intel_parse_bios(struct drm_device *dev);
#define DVO_PORT_DPD 9
#define DVO_PORT_DPA 10
/* MIPI DSI panel info */
struct bdb_mipi {
/* Block 52 contains MIPI Panel info
* 6 such enteries will there. Index into correct
* entery is based on the panel_index in #40 LFP
*/
#define MAX_MIPI_CONFIGURATIONS 6
#define MIPI_DSI_UNDEFINED_PANEL_ID 0
#define MIPI_DSI_GENERIC_PANEL_ID 1
struct mipi_config {
u16 panel_id;
u16 bridge_revision;
/* General params */
u32 dithering:1;
u32 bpp_pixel_format:1;
/* General Params */
u32 enable_dithering:1;
u32 rsvd1:1;
u32 dphy_valid:1;
u32 resvd2:28;
u32 is_bridge:1;
u16 port_info;
u16 rsvd3:2;
u16 num_lanes:2;
u16 rsvd4:12;
u32 panel_arch_type:2;
u32 is_cmd_mode:1;
/* DSI config */
u16 virt_ch_num:2;
u16 vtm:2;
u16 rsvd5:12;
#define NON_BURST_SYNC_PULSE 0x1
#define NON_BURST_SYNC_EVENTS 0x2
#define BURST_MODE 0x3
u32 video_transfer_mode:2;
u32 dsi_clock;
u32 cabc_supported:1;
u32 pwm_blc:1;
/* Bit 13:10 */
#define PIXEL_FORMAT_RGB565 0x1
#define PIXEL_FORMAT_RGB666 0x2
#define PIXEL_FORMAT_RGB666_LOOSELY_PACKED 0x3
#define PIXEL_FORMAT_RGB888 0x4
u32 videomode_color_format:4;
/* Bit 15:14 */
#define ENABLE_ROTATION_0 0x0
#define ENABLE_ROTATION_90 0x1
#define ENABLE_ROTATION_180 0x2
#define ENABLE_ROTATION_270 0x3
u32 rotation:2;
u32 bta_enabled:1;
u32 rsvd2:15;
/* 2 byte Port Description */
#define DUAL_LINK_NOT_SUPPORTED 0
#define DUAL_LINK_FRONT_BACK 1
#define DUAL_LINK_PIXEL_ALT 2
u16 dual_link:2;
u16 lane_cnt:2;
u16 rsvd3:12;
u16 rsvd4;
u8 rsvd5[5];
u32 dsi_ddr_clk;
u32 bridge_ref_clk;
u16 rsvd_pwr;
/* Dphy Params */
u32 prepare_cnt:5;
u32 rsvd6:3;
#define BYTE_CLK_SEL_20MHZ 0
#define BYTE_CLK_SEL_10MHZ 1
#define BYTE_CLK_SEL_5MHZ 2
u8 byte_clk_sel:2;
u8 rsvd6:6;
/* DPHY Flags */
u16 dphy_param_valid:1;
u16 eot_pkt_disabled:1;
u16 enable_clk_stop:1;
u16 rsvd7:13;
u32 hs_tx_timeout;
u32 lp_rx_timeout;
u32 turn_around_timeout;
u32 device_reset_timer;
u32 master_init_timer;
u32 dbi_bw_timer;
u32 lp_byte_clk_val;
/* 4 byte Dphy Params */
u32 prepare_cnt:6;
u32 rsvd8:2;
u32 clk_zero_cnt:8;
u32 trail_cnt:5;
u32 rsvd7:3;
u32 rsvd9:3;
u32 exit_zero_cnt:6;
u32 rsvd8:2;
u32 rsvd10:2;
u32 hl_switch_cnt;
u32 lp_byte_clk;
u32 clk_lane_switch_cnt;
u32 hl_switch_cnt;
u32 rsvd11[6];
/* timings based on dphy spec */
u8 tclk_miss;
u8 tclk_post;
u8 rsvd12;
u8 tclk_pre;
u8 tclk_prepare;
u8 tclk_settle;
u8 tclk_term_enable;
u8 tclk_trail;
u16 tclk_prepare_clkzero;
u8 rsvd13;
u8 td_term_enable;
u8 teot;
u8 ths_exit;
u8 ths_prepare;
u16 ths_prepare_hszero;
u8 rsvd14;
u8 ths_settle;
u8 ths_skip;
u8 ths_trail;
u8 tinit;
u8 tlpx;
u8 rsvd15[3];
/* GPIOs */
u8 panel_enable;
u8 bl_enable;
u8 pwm_enable;
u8 reset_r_n;
u8 pwr_down_r;
u8 stdby_r_n;
} __packed;
/* Block 52 contains MIPI configuration block
* 6 * bdb_mipi_config, followed by 6 pps data
* block below
*
* all delays has a unit of 100us
*/
struct mipi_pps_data {
u16 panel_on_delay;
u16 bl_enable_delay;
u16 bl_disable_delay;
u16 panel_off_delay;
u16 panel_power_cycle_delay;
};
struct bdb_mipi_config {
struct mipi_config config[MAX_MIPI_CONFIGURATIONS];
struct mipi_pps_data pps[MAX_MIPI_CONFIGURATIONS];
};
/* Block 53 contains MIPI sequences as needed by the panel
* for enabling it. This block can be variable in size and
* can be maximum of 6 blocks
*/
struct bdb_mipi_sequence {
u8 version;
u8 data[0];
};
#endif /* _I830_BIOS_H_ */