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path: root/drivers/scsi/ufs/ufshcd.c
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Diffstat (limited to 'drivers/scsi/ufs/ufshcd.c')
-rw-r--r--drivers/scsi/ufs/ufshcd.c26
1 files changed, 15 insertions, 11 deletions
diff --git a/drivers/scsi/ufs/ufshcd.c b/drivers/scsi/ufs/ufshcd.c
index a3bcf9f31fa3..5f20922101cf 100644
--- a/drivers/scsi/ufs/ufshcd.c
+++ b/drivers/scsi/ufs/ufshcd.c
@@ -6475,11 +6475,12 @@ out:
return icc_level;
}
-static void ufshcd_init_icc_levels(struct ufs_hba *hba)
+static void ufshcd_set_active_icc_lvl(struct ufs_hba *hba)
{
int ret;
int buff_len = hba->desc_size.pwr_desc;
u8 *desc_buf;
+ u32 icc_level;
desc_buf = kmalloc(buff_len, GFP_KERNEL);
if (!desc_buf)
@@ -6494,20 +6495,17 @@ static void ufshcd_init_icc_levels(struct ufs_hba *hba)
goto out;
}
- hba->init_prefetch_data.icc_level =
- ufshcd_find_max_sup_active_icc_level(hba,
- desc_buf, buff_len);
- dev_dbg(hba->dev, "%s: setting icc_level 0x%x",
- __func__, hba->init_prefetch_data.icc_level);
+ icc_level = ufshcd_find_max_sup_active_icc_level(hba, desc_buf,
+ buff_len);
+ dev_dbg(hba->dev, "%s: setting icc_level 0x%x", __func__, icc_level);
ret = ufshcd_query_attr_retry(hba, UPIU_QUERY_OPCODE_WRITE_ATTR,
- QUERY_ATTR_IDN_ACTIVE_ICC_LVL, 0, 0,
- &hba->init_prefetch_data.icc_level);
+ QUERY_ATTR_IDN_ACTIVE_ICC_LVL, 0, 0, &icc_level);
if (ret)
dev_err(hba->dev,
"%s: Failed configuring bActiveICCLevel = %d ret = %d",
- __func__, hba->init_prefetch_data.icc_level , ret);
+ __func__, icc_level, ret);
out:
kfree(desc_buf);
@@ -7027,8 +7025,6 @@ static int ufshcd_add_lus(struct ufs_hba *hba)
{
int ret;
- ufshcd_init_icc_levels(hba);
-
/* Add required well known logical units to scsi mid layer */
ret = ufshcd_scsi_add_wlus(hba);
if (ret)
@@ -7126,6 +7122,14 @@ static int ufshcd_probe_hba(struct ufs_hba *hba, bool async)
}
}
+ /*
+ * bActiveICCLevel is volatile for UFS device (as per latest v2.1 spec)
+ * and for removable UFS card as well, hence always set the parameter.
+ * Note: Error handler may issue the device reset hence resetting
+ * bActiveICCLevel as well so it is always safe to set this here.
+ */
+ ufshcd_set_active_icc_lvl(hba);
+
/* set the state as operational after switching to desired gear */
hba->ufshcd_state = UFSHCD_STATE_OPERATIONAL;