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bvanasschemartinkpetersen
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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 b92e593 ("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 <[email protected]> Closes: https://lore.kernel.org/linux-scsi/[email protected]/ Tested-by: Neil Armstrong <[email protected]> # on SM8650-HDK Tested-by: Neil Armstrong <[email protected]> # on SM8650-QRD Fixes: b92e593 ("scsi: ufs: core: Move code out of an if-statement") Signed-off-by: Bart Van Assche <[email protected]> Link: https://lore.kernel.org/r/[email protected] Signed-off-by: Martin K. Petersen <[email protected]>
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drivers/ufs/host/ufs-qcom.c

Lines changed: 2 additions & 1 deletion
Original file line numberDiff line numberDiff line change
@@ -874,7 +874,8 @@ static void ufs_qcom_advertise_quirks(struct ufs_hba *hba)
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if (host->hw_ver.major > 0x3)
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hba->quirks |= UFSHCD_QUIRK_REINIT_AFTER_MAX_GEAR_SWITCH;
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if (of_device_is_compatible(hba->dev->of_node, "qcom,sm8550-ufshc"))
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if (of_device_is_compatible(hba->dev->of_node, "qcom,sm8550-ufshc") ||
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of_device_is_compatible(hba->dev->of_node, "qcom,sm8650-ufshc"))
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hba->quirks |= UFSHCD_QUIRK_BROKEN_LSDBS_CAP;
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}
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