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FROMLIST: scsi: ufs: add quirk to enable host controller without interface configuration

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samsung ExynosAuto SoC has two types of host controller interface to
support the virtualization of UFS Device.
One is the physical host(PH) that the same as conventaional UFSHCI,
and the other is the virtual host(VH) that support data transfer function only.

In this structure, the virtual host does not support like device management.
This patch skips the interface configuration part that cannot be performed
in the virtual host.

Signed-off-by: jongmin jeong <jjmin.jeong@samsung.com>
Link: https://lore.kernel.org/linux-scsi/20210709065711.25195-3-chanho61.park@samsung.com/
Bug: 190689163
Signed-off-by: Chanho Park <chanho61.park@samsung.com>
Change-Id: I65b56f898da9d57c627b5752535dd563e4fd3e8d
This commit is contained in:
jongmin jeong
2021-05-27 12:09:00 +09:00
committed by Todd Kjos
parent 2d5ae6b787
commit fc79c93657
2 changed files with 9 additions and 0 deletions
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3
drivers/scsi/ufs/ufshcd.c
View File

@@ -7964,6 +7964,9 @@ static int ufshcd_probe_hba(struct ufs_hba *hba, bool async)
if (ret)
goto out;
if (hba->quirks & UFSHCD_QUIRK_SKIP_INTERFACE_CONFIGURATION)
goto out;
/* Debug counters initialization */
ufshcd_clear_dbg_ufs_stats(hba);

6
drivers/scsi/ufs/ufshcd.h
View File

@@ -571,6 +571,12 @@ enum ufshcd_quirks {
*/
UFSHCD_QUIRK_BROKEN_UIC_CMD = 1 << 15,
/*
* This quirk needs to be enabled if the host controller cannot
* support interface configuration.
*/
UFSHCD_QUIRK_SKIP_INTERFACE_CONFIGURATION = 1 << 16,
/*
* This quirk needs to be enabled if the host controller supports inline
* encryption, but it needs to initialize the crypto capabilities in a