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drm/i915/bios: Define ALM only VBT block 9 contents

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For some reason ALM VBT has two dot clock override tables.
One as the normal block 15 and a second one as block 9.
The table in block 9 has no row_size/num_rows information.

On my Fujitsu Lifebook S6010 only the block 9 table has actual
data in it. Block 15 is present but all zeroes.

Signed-off-by: Ville Syrjälä <ville.syrjala@linux.intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20240503122449.27266-17-ville.syrjala@linux.intel.com
Acked-by: Jani Nikula <jani.nikula@intel.com>
This commit is contained in:
Ville Syrjälä 2024-05-03 15:24:30 +03:00
parent f7d5b5ff08
commit 55c6b98676
1 changed files with 20 additions and 11 deletions
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31
drivers/gpu/drm/i915/display/intel_vbt_defs.h
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@ -147,6 +147,7 @@ enum bdb_block_id {
BDB_EXT_MMIO_REGS = 6, /* VBIOS only */
BDB_SWF_IO = 7, /* VBIOS only */
BDB_SWF_MMIO = 8, /* VBIOS only */
BDB_DOT_CLOCK_OVERRIDE_ALM = 9,
BDB_PSR = 9, /* 165+ */
BDB_MODE_REMOVAL_TABLE = 10,
BDB_CHILD_DEVICE_TABLE = 11,
@ -650,6 +651,25 @@ struct bdb_reg_table {
/* u16 table_end_marker; */
} __packed;
/*
* Block 9 - Undocumented table (ALM only)
*/
struct dot_clock_override_entry_gen2 {
u32 dotclock;
u8 n;
u8 m1;
u8 m2;
u8 p1:5;
u8 p1_div_by_2:1;
u8 reserved:1;
u8 p2_div_by_4:1;
} __packed;
struct bdb_dot_clock_override_alm {
struct dot_clock_override_entry_gen2 t[0];
} __packed;
/*
* Block 9 - SRD Feature Block
*/
@ -801,17 +821,6 @@ struct bdb_driver_persistence {
* Block 15 - Dot Clock Override Table
*/
struct dot_clock_override_entry_gen2 {
u32 dotclock;
u8 n;
u8 m1;
u8 m2;
u8 p1:5;
u8 p1_div_by_2:1;
u8 reserved:1;
u8 p2_div_by_4:1;
} __packed;
struct dot_clock_override_entry_gen3 {
u32 dotclock;
u8 n;