diff options
Diffstat (limited to 'drivers/gpu/drm/amd/display/dmub/src/dmub_dcn35.c')
| -rw-r--r-- | drivers/gpu/drm/amd/display/dmub/src/dmub_dcn35.c | 8 |
1 files changed, 7 insertions, 1 deletions
diff --git a/drivers/gpu/drm/amd/display/dmub/src/dmub_dcn35.c b/drivers/gpu/drm/amd/display/dmub/src/dmub_dcn35.c index 60223efc6fc8a..53f359f3fae26 100644 --- a/drivers/gpu/drm/amd/display/dmub/src/dmub_dcn35.c +++ b/drivers/gpu/drm/amd/display/dmub/src/dmub_dcn35.c @@ -555,8 +555,14 @@ uint32_t dmub_dcn35_read_inbox0_ack_register(struct dmub_srv *dmub) bool dmub_dcn35_is_hw_powered_up(struct dmub_srv *dmub) { union dmub_fw_boot_status status; + uint32_t is_enable; + + REG_GET(DMCUB_CNTL, DMCUB_ENABLE, &is_enable); + if (is_enable == 0) + return false; status.all = REG_READ(DMCUB_SCRATCH0); - return status.bits.hw_power_init_done; + return (status.bits.dal_fw && status.bits.hw_power_init_done && status.bits.mailbox_rdy) || + (!status.bits.dal_fw && status.bits.mailbox_rdy); } |