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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.c90
1 files changed, 24 insertions, 66 deletions
diff --git a/drivers/scsi/ufs/ufshcd.c b/drivers/scsi/ufs/ufshcd.c
index 2ddf24466a62..e040f9dd9ff3 100644
--- a/drivers/scsi/ufs/ufshcd.c
+++ b/drivers/scsi/ufs/ufshcd.c
@@ -219,12 +219,9 @@ static struct ufs_dev_fix ufs_fixups[] = {
/* UFS cards deviations table */
UFS_FIX(UFS_VENDOR_SAMSUNG, UFS_ANY_MODEL,
UFS_DEVICE_QUIRK_DELAY_BEFORE_LPM),
- UFS_FIX(UFS_VENDOR_SAMSUNG, UFS_ANY_MODEL, UFS_DEVICE_NO_VCCQ),
UFS_FIX(UFS_VENDOR_SAMSUNG, UFS_ANY_MODEL,
UFS_DEVICE_QUIRK_RECOVERY_FROM_DL_NAC_ERRORS),
UFS_FIX(UFS_VENDOR_SAMSUNG, UFS_ANY_MODEL,
- UFS_DEVICE_NO_FASTAUTO),
- UFS_FIX(UFS_VENDOR_SAMSUNG, UFS_ANY_MODEL,
UFS_DEVICE_QUIRK_HOST_PA_TACTIVATE),
UFS_FIX(UFS_VENDOR_TOSHIBA, UFS_ANY_MODEL,
UFS_DEVICE_QUIRK_DELAY_BEFORE_LPM),
@@ -232,7 +229,6 @@ static struct ufs_dev_fix ufs_fixups[] = {
UFS_DEVICE_QUIRK_PA_TACTIVATE),
UFS_FIX(UFS_VENDOR_TOSHIBA, "THGLF2G9D8KBADG",
UFS_DEVICE_QUIRK_PA_TACTIVATE),
- UFS_FIX(UFS_VENDOR_SKHYNIX, UFS_ANY_MODEL, UFS_DEVICE_NO_VCCQ),
UFS_FIX(UFS_VENDOR_SKHYNIX, UFS_ANY_MODEL,
UFS_DEVICE_QUIRK_HOST_PA_SAVECONFIGTIME),
UFS_FIX(UFS_VENDOR_SKHYNIX, "hB8aL1" /*H28U62301AMR*/,
@@ -251,7 +247,6 @@ static int ufshcd_probe_hba(struct ufs_hba *hba);
static int __ufshcd_setup_clocks(struct ufs_hba *hba, bool on,
bool skip_ref_clk);
static int ufshcd_setup_clocks(struct ufs_hba *hba, bool on);
-static int ufshcd_set_vccq_rail_unused(struct ufs_hba *hba, bool unused);
static int ufshcd_uic_hibern8_exit(struct ufs_hba *hba);
static int ufshcd_uic_hibern8_enter(struct ufs_hba *hba);
static inline void ufshcd_add_delay_before_dme_cmd(struct ufs_hba *hba);
@@ -399,15 +394,20 @@ static void ufshcd_print_uic_err_hist(struct ufs_hba *hba,
struct ufs_uic_err_reg_hist *err_hist, char *err_name)
{
int i;
+ bool found = false;
for (i = 0; i < UIC_ERR_REG_HIST_LENGTH; i++) {
- int p = (i + err_hist->pos - 1) % UIC_ERR_REG_HIST_LENGTH;
+ int p = (i + err_hist->pos) % UIC_ERR_REG_HIST_LENGTH;
if (err_hist->reg[p] == 0)
continue;
dev_err(hba->dev, "%s[%d] = 0x%x at %lld us\n", err_name, i,
err_hist->reg[p], ktime_to_us(err_hist->tstamp[p]));
+ found = true;
}
+
+ if (!found)
+ dev_err(hba->dev, "No record of %s uic errors\n", err_name);
}
static void ufshcd_print_host_regs(struct ufs_hba *hba)
@@ -5775,6 +5775,20 @@ static int ufshcd_issue_devman_upiu_cmd(struct ufs_hba *hba,
/* just copy the upiu response as it is */
memcpy(rsp_upiu, lrbp->ucd_rsp_ptr, sizeof(*rsp_upiu));
+ if (desc_buff && desc_op == UPIU_QUERY_OPCODE_READ_DESC) {
+ u8 *descp = (u8 *)lrbp->ucd_rsp_ptr + sizeof(*rsp_upiu);
+ u16 resp_len = be32_to_cpu(lrbp->ucd_rsp_ptr->header.dword_2) &
+ MASK_QUERY_DATA_SEG_LEN;
+
+ if (*buff_len >= resp_len) {
+ memcpy(desc_buff, descp, resp_len);
+ *buff_len = resp_len;
+ } else {
+ dev_warn(hba->dev, "rsp size is bigger than buffer");
+ *buff_len = 0;
+ err = -EINVAL;
+ }
+ }
ufshcd_put_dev_cmd_tag(hba, tag);
wake_up(&hba->dev_cmd.tag_wq);
@@ -5810,11 +5824,6 @@ int ufshcd_exec_raw_upiu_cmd(struct ufs_hba *hba,
int ocs_value;
u8 tm_f = be32_to_cpu(req_upiu->header.dword_1) >> 16 & MASK_TM_FUNC;
- if (desc_buff && desc_op != UPIU_QUERY_OPCODE_WRITE_DESC) {
- err = -ENOTSUPP;
- goto out;
- }
-
switch (msgcode) {
case UPIU_TRANSACTION_NOP_OUT:
cmd_type = DEV_CMD_TYPE_NOP;
@@ -5855,7 +5864,6 @@ int ufshcd_exec_raw_upiu_cmd(struct ufs_hba *hba,
break;
}
-out:
return err;
}
@@ -6825,11 +6833,6 @@ static int ufshcd_probe_hba(struct ufs_hba *hba)
ufs_fixup_device_setup(hba, &card);
ufshcd_tune_unipro_params(hba);
- ret = ufshcd_set_vccq_rail_unused(hba,
- (hba->dev_quirks & UFS_DEVICE_NO_VCCQ) ? true : false);
- if (ret)
- goto out;
-
/* UFS device is also active now */
ufshcd_set_ufs_dev_active(hba);
ufshcd_force_reset_auto_bkops(hba);
@@ -7013,24 +7016,13 @@ static int ufshcd_config_vreg_load(struct device *dev, struct ufs_vreg *vreg,
static inline int ufshcd_config_vreg_lpm(struct ufs_hba *hba,
struct ufs_vreg *vreg)
{
- if (!vreg)
- return 0;
- else if (vreg->unused)
- return 0;
- else
- return ufshcd_config_vreg_load(hba->dev, vreg,
- UFS_VREG_LPM_LOAD_UA);
+ return ufshcd_config_vreg_load(hba->dev, vreg, UFS_VREG_LPM_LOAD_UA);
}
static inline int ufshcd_config_vreg_hpm(struct ufs_hba *hba,
struct ufs_vreg *vreg)
{
- if (!vreg)
- return 0;
- else if (vreg->unused)
- return 0;
- else
- return ufshcd_config_vreg_load(hba->dev, vreg, vreg->max_uA);
+ return ufshcd_config_vreg_load(hba->dev, vreg, vreg->max_uA);
}
static int ufshcd_config_vreg(struct device *dev,
@@ -7068,9 +7060,7 @@ static int ufshcd_enable_vreg(struct device *dev, struct ufs_vreg *vreg)
{
int ret = 0;
- if (!vreg)
- goto out;
- else if (vreg->enabled || vreg->unused)
+ if (!vreg || vreg->enabled)
goto out;
ret = ufshcd_config_vreg(dev, vreg, true);
@@ -7090,9 +7080,7 @@ static int ufshcd_disable_vreg(struct device *dev, struct ufs_vreg *vreg)
{
int ret = 0;
- if (!vreg)
- goto out;
- else if (!vreg->enabled || vreg->unused)
+ if (!vreg || !vreg->enabled)
goto out;
ret = regulator_disable(vreg->reg);
@@ -7198,36 +7186,6 @@ static int ufshcd_init_hba_vreg(struct ufs_hba *hba)
return 0;
}
-static int ufshcd_set_vccq_rail_unused(struct ufs_hba *hba, bool unused)
-{
- int ret = 0;
- struct ufs_vreg_info *info = &hba->vreg_info;
-
- if (!info)
- goto out;
- else if (!info->vccq)
- goto out;
-
- if (unused) {
- /* shut off the rail here */
- ret = ufshcd_toggle_vreg(hba->dev, info->vccq, false);
- /*
- * Mark this rail as no longer used, so it doesn't get enabled
- * later by mistake
- */
- if (!ret)
- info->vccq->unused = true;
- } else {
- /*
- * rail should have been already enabled hence just make sure
- * that unused flag is cleared.
- */
- info->vccq->unused = false;
- }
-out:
- return ret;
-}
-
static int __ufshcd_setup_clocks(struct ufs_hba *hba, bool on,
bool skip_ref_clk)
{
generated by cgit v1.2.3 (git 2.39.1) at 2024-12-16 23:41:46 +0000