diff options
Diffstat (limited to 'drivers/gpu/drm/nouveau/nouveau_bios.c')
| -rw-r--r-- | drivers/gpu/drm/nouveau/nouveau_bios.c | 26 |
1 files changed, 26 insertions, 0 deletions
diff --git a/drivers/gpu/drm/nouveau/nouveau_bios.c b/drivers/gpu/drm/nouveau/nouveau_bios.c index e0997d6e6d7..6dd00ffa63a 100644 --- a/drivers/gpu/drm/nouveau/nouveau_bios.c +++ b/drivers/gpu/drm/nouveau/nouveau_bios.c @@ -1928,6 +1928,31 @@ init_condition_time(struct nvbios *bios, uint16_t offset, } static int +init_ltime(struct nvbios *bios, uint16_t offset, struct init_exec *iexec) +{ + /* + * INIT_LTIME opcode: 0x57 ('V') + * + * offset (8 bit): opcode + * offset + 1 (16 bit): time + * + * Sleep for "time" miliseconds. + */ + + unsigned time = ROM16(bios->data[offset + 1]); + + if (!iexec->execute) + return 3; + + BIOSLOG(bios, "0x%04X: Sleeping for 0x%04X miliseconds\n", + offset, time); + + msleep(time); + + return 3; +} + +static int init_zm_reg_sequence(struct nvbios *bios, uint16_t offset, struct init_exec *iexec) { @@ -3518,6 +3543,7 @@ static struct init_tbl_entry itbl_entry[] = { { "INIT_ZM_CR" , 0x53, init_zm_cr }, { "INIT_ZM_CR_GROUP" , 0x54, init_zm_cr_group }, { "INIT_CONDITION_TIME" , 0x56, init_condition_time }, + { "INIT_LTIME" , 0x57, init_ltime }, { "INIT_ZM_REG_SEQUENCE" , 0x58, init_zm_reg_sequence }, /* INIT_INDIRECT_REG (0x5A, 7, 0, 0) removed due to no example of use */ { "INIT_SUB_DIRECT" , 0x5B, init_sub_direct }, |