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| author | Bart Van Assche <bvanassche@acm.org> | 2024-11-06 10:10:11 -0800 |
|---|---|---|
| committer | Martin K. Petersen <martin.petersen@oracle.com> | 2024-11-06 21:12:14 -0500 |
| commit | 007cd6ba9aace998acab29a3b9e9b1ce02f91f5d (patch) | |
| tree | 4d000ba3b78f0a330730717d472ee3d57934012a /drivers/ufs | |
| parent | 50133cf05263198da551e2964d654ae8ad47fe8e (diff) | |
| download | lwn-007cd6ba9aace998acab29a3b9e9b1ce02f91f5d.tar.gz lwn-007cd6ba9aace998acab29a3b9e9b1ce02f91f5d.zip | |
scsi: ufs: core: Restore SM8650 support
Some early UFSHCI 4.0 controllers support the UFSHCI 3.0 register set.
The UFSHCD_QUIRK_BROKEN_LSDBS_CAP quirk must be set for these controllers.
Commit b92e5937e352 ("scsi: ufs: core: Move code out of an if-statement")
changed the behavior for these controllers from working fine into
"ufshcd_add_scsi_host: failed to initialize (legacy doorbell mode not
supported)". Fix this by setting the "broken LSDBS" quirk for the
SM8650 development board.
Reported-by: Neil Armstrong <neil.armstrong@linaro.org>
Closes: https://lore.kernel.org/linux-scsi/0c0bc528-fdc2-4106-bc99-f23ae377f6f5@linaro.org/
Tested-by: Neil Armstrong <neil.armstrong@linaro.org> # on SM8650-HDK
Tested-by: Neil Armstrong <neil.armstrong@linaro.org> # on SM8650-QRD
Fixes: b92e5937e352 ("scsi: ufs: core: Move code out of an if-statement")
Signed-off-by: Bart Van Assche <bvanassche@acm.org>
Link: https://lore.kernel.org/r/20241106181011.4132974-1-bvanassche@acm.org
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
Diffstat (limited to 'drivers/ufs')
| -rw-r--r-- | drivers/ufs/host/ufs-qcom.c | 3 |
1 files changed, 2 insertions, 1 deletions
diff --git a/drivers/ufs/host/ufs-qcom.c b/drivers/ufs/host/ufs-qcom.c index a5a0646bb80a..3b592492e152 100644 --- a/drivers/ufs/host/ufs-qcom.c +++ b/drivers/ufs/host/ufs-qcom.c @@ -874,7 +874,8 @@ static void ufs_qcom_advertise_quirks(struct ufs_hba *hba) if (host->hw_ver.major > 0x3) hba->quirks |= UFSHCD_QUIRK_REINIT_AFTER_MAX_GEAR_SWITCH; - if (of_device_is_compatible(hba->dev->of_node, "qcom,sm8550-ufshc")) + if (of_device_is_compatible(hba->dev->of_node, "qcom,sm8550-ufshc") || + of_device_is_compatible(hba->dev->of_node, "qcom,sm8650-ufshc")) hba->quirks |= UFSHCD_QUIRK_BROKEN_LSDBS_CAP; } |