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authorJude Shih <jude.shih@amd.com>2021-07-06 18:04:11 +0800
committerAlex Deucher <alexander.deucher@amd.com>2021-08-05 21:02:29 -0400
commitd5c5ac3a7bca35261eb599204cbf1efee0af22cc (patch)
tree67dc5164f52a174edf8fc4b79bd82ed6403f9911 /drivers
parentcd7b0531a61811429e7907c875e864ab918f3e62 (diff)
drm/amd/display: Fix resetting DCN3.1 HW when resuming from S4
[Why] On S4 resume we also need to fix detection of when to reload DMCUB firmware because we're currently using the VBIOS version which isn't compatible with the driver version. [How] Update the hardware init check for DCN31 since it's the ASIC that has this issue. Reviewed-by: Nicholas Kazlauskas <Nicholas.Kazlauskas@amd.com> Acked-by: Aurabindo Pillai <aurabindo.pillai@amd.com> Signed-off-by: Jude Shih <jude.shih@amd.com> Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Diffstat (limited to 'drivers')
-rw-r--r--drivers/gpu/drm/amd/display/dmub/src/dmub_dcn31.c8
1 files changed, 5 insertions, 3 deletions
diff --git a/drivers/gpu/drm/amd/display/dmub/src/dmub_dcn31.c b/drivers/gpu/drm/amd/display/dmub/src/dmub_dcn31.c
index 973de346410d..27c7fa3110c8 100644
--- a/drivers/gpu/drm/amd/display/dmub/src/dmub_dcn31.c
+++ b/drivers/gpu/drm/amd/display/dmub/src/dmub_dcn31.c
@@ -267,11 +267,13 @@ void dmub_dcn31_set_outbox1_rptr(struct dmub_srv *dmub, uint32_t rptr_offset)
bool dmub_dcn31_is_hw_init(struct dmub_srv *dmub)
{
- uint32_t is_hw_init;
+ union dmub_fw_boot_status status;
+ uint32_t is_enable;
- REG_GET(DMCUB_CNTL, DMCUB_ENABLE, &is_hw_init);
+ status.all = REG_READ(DMCUB_SCRATCH0);
+ REG_GET(DMCUB_CNTL, DMCUB_ENABLE, &is_enable);
- return is_hw_init != 0;
+ return is_enable != 0 && status.bits.dal_fw;
}
bool dmub_dcn31_is_supported(struct dmub_srv *dmub)