Re: [PATCH] scsi: ufs: Add selector to ufshcd_query_flag* APIs
From: Can Guo
Date: Thu Mar 18 2021 - 01:49:23 EST
On 2021-03-17 11:31, Daejun Park wrote:
Unlike other query APIs in UFS, ufshcd_query_flag has a fixed selector
as 0. This patch allows ufshcd_query_flag API to choose selector value
by parameter.
Signed-off-by: Daejun Park <daejun7.park@xxxxxxxxxxx>
Reviewed-by: Can Guo <cang@xxxxxxxxxxxxxx>
---
drivers/scsi/ufs/ufs-sysfs.c | 2 +-
drivers/scsi/ufs/ufshcd.c | 29 +++++++++++++++++------------
drivers/scsi/ufs/ufshcd.h | 2 +-
3 files changed, 19 insertions(+), 14 deletions(-)
diff --git a/drivers/scsi/ufs/ufs-sysfs.c
b/drivers/scsi/ufs/ufs-sysfs.c
index acc54f530f2d..606b058a3394 100644
--- a/drivers/scsi/ufs/ufs-sysfs.c
+++ b/drivers/scsi/ufs/ufs-sysfs.c
@@ -746,7 +746,7 @@ static ssize_t _name##_show(struct device
*dev, \
index = ufshcd_wb_get_query_index(hba); \
pm_runtime_get_sync(hba->dev); \
ret = ufshcd_query_flag(hba, UPIU_QUERY_OPCODE_READ_FLAG, \
- QUERY_FLAG_IDN##_uname, index, &flag); \
+ QUERY_FLAG_IDN##_uname, index, &flag, 0); \
pm_runtime_put_sync(hba->dev); \
if (ret) { \
ret = -EINVAL; \
diff --git a/drivers/scsi/ufs/ufshcd.c b/drivers/scsi/ufs/ufshcd.c
index 8c0ff024231c..c2fd9c58d6b8 100644
--- a/drivers/scsi/ufs/ufshcd.c
+++ b/drivers/scsi/ufs/ufshcd.c
@@ -2940,13 +2940,15 @@ static inline void ufshcd_init_query(struct
ufs_hba *hba,
}
static int ufshcd_query_flag_retry(struct ufs_hba *hba,
- enum query_opcode opcode, enum flag_idn idn, u8 index, bool
*flag_res)
+ enum query_opcode opcode, enum flag_idn idn, u8 index, bool
*flag_res,
+ u8 selector)
{
int ret;
int retries;
for (retries = 0; retries < QUERY_REQ_RETRIES; retries++) {
- ret = ufshcd_query_flag(hba, opcode, idn, index, flag_res);
+ ret = ufshcd_query_flag(hba, opcode, idn, index, flag_res,
+ selector);
if (ret)
dev_dbg(hba->dev,
"%s: failed with error %d, retries %d\n",
@@ -2969,15 +2971,17 @@ static int ufshcd_query_flag_retry(struct
ufs_hba *hba,
* @idn: flag idn to access
* @index: flag index to access
* @flag_res: the flag value after the query request completes
+ * @selector: selector field
*
* Returns 0 for success, non-zero in case of failure
*/
int ufshcd_query_flag(struct ufs_hba *hba, enum query_opcode opcode,
- enum flag_idn idn, u8 index, bool *flag_res)
+ enum flag_idn idn, u8 index, bool *flag_res,
+ u8 selector)
{
struct ufs_query_req *request = NULL;
struct ufs_query_res *response = NULL;
- int err, selector = 0;
+ int err;
int timeout = QUERY_REQ_TIMEOUT;
BUG_ON(!hba);
@@ -4331,7 +4335,7 @@ static int ufshcd_complete_dev_init(struct
ufs_hba *hba)
ktime_t timeout;
err = ufshcd_query_flag_retry(hba, UPIU_QUERY_OPCODE_SET_FLAG,
- QUERY_FLAG_IDN_FDEVICEINIT, 0, NULL);
+ QUERY_FLAG_IDN_FDEVICEINIT, 0, NULL, 0);
if (err) {
dev_err(hba->dev,
"%s setting fDeviceInit flag failed with error %d\n",
@@ -4343,7 +4347,8 @@ static int ufshcd_complete_dev_init(struct
ufs_hba *hba)
timeout = ktime_add_ms(ktime_get(), FDEVICEINIT_COMPL_TIMEOUT);
do {
err = ufshcd_query_flag(hba, UPIU_QUERY_OPCODE_READ_FLAG,
- QUERY_FLAG_IDN_FDEVICEINIT, 0, &flag_res);
+ QUERY_FLAG_IDN_FDEVICEINIT, 0, &flag_res,
+ 0);
if (!flag_res)
break;
usleep_range(5000, 10000);
@@ -5250,7 +5255,7 @@ static int ufshcd_enable_auto_bkops(struct
ufs_hba *hba)
goto out;
err = ufshcd_query_flag_retry(hba, UPIU_QUERY_OPCODE_SET_FLAG,
- QUERY_FLAG_IDN_BKOPS_EN, 0, NULL);
+ QUERY_FLAG_IDN_BKOPS_EN, 0, NULL, 0);
if (err) {
dev_err(hba->dev, "%s: failed to enable bkops %d\n",
__func__, err);
@@ -5300,7 +5305,7 @@ static int ufshcd_disable_auto_bkops(struct
ufs_hba *hba)
}
err = ufshcd_query_flag_retry(hba, UPIU_QUERY_OPCODE_CLEAR_FLAG,
- QUERY_FLAG_IDN_BKOPS_EN, 0, NULL);
+ QUERY_FLAG_IDN_BKOPS_EN, 0, NULL, 0);
if (err) {
dev_err(hba->dev, "%s: failed to disable bkops %d\n",
__func__, err);
@@ -5463,7 +5468,7 @@ int ufshcd_wb_ctrl(struct ufs_hba *hba, bool
enable)
index = ufshcd_wb_get_query_index(hba);
ret = ufshcd_query_flag_retry(hba, opcode,
- QUERY_FLAG_IDN_WB_EN, index, NULL);
+ QUERY_FLAG_IDN_WB_EN, index, NULL, 0);
if (ret) {
dev_err(hba->dev, "%s write booster %s failed %d\n",
__func__, enable ? "enable" : "disable", ret);
@@ -5490,7 +5495,7 @@ static int
ufshcd_wb_toggle_flush_during_h8(struct ufs_hba *hba, bool set)
index = ufshcd_wb_get_query_index(hba);
return ufshcd_query_flag_retry(hba, val,
QUERY_FLAG_IDN_WB_BUFF_FLUSH_DURING_HIBERN8,
- index, NULL);
+ index, NULL, 0);
}
static inline int ufshcd_wb_toggle_flush(struct ufs_hba *hba, bool
enable)
@@ -5511,7 +5516,7 @@ static inline int ufshcd_wb_toggle_flush(struct
ufs_hba *hba, bool enable)
index = ufshcd_wb_get_query_index(hba);
ret = ufshcd_query_flag_retry(hba, opcode,
QUERY_FLAG_IDN_WB_BUFF_FLUSH_EN, index,
- NULL);
+ NULL, 0);
if (ret) {
dev_err(hba->dev, "%s WB-Buf Flush %s failed %d\n", __func__,
enable ? "enable" : "disable", ret);
@@ -7751,7 +7756,7 @@ static int ufshcd_device_params_init(struct
ufs_hba *hba)
ufshcd_get_ref_clk_gating_wait(hba);
if (!ufshcd_query_flag_retry(hba, UPIU_QUERY_OPCODE_READ_FLAG,
- QUERY_FLAG_IDN_PWR_ON_WPE, 0, &flag))
+ QUERY_FLAG_IDN_PWR_ON_WPE, 0, &flag, 0))
hba->dev_info.f_power_on_wp_en = flag;
/* Probe maximum power mode co-supported by both UFS host and device
*/
diff --git a/drivers/scsi/ufs/ufshcd.h b/drivers/scsi/ufs/ufshcd.h
index 1af91661dc83..67a26b2be36f 100644
--- a/drivers/scsi/ufs/ufshcd.h
+++ b/drivers/scsi/ufs/ufshcd.h
@@ -1077,7 +1077,7 @@ int ufshcd_read_desc_param(struct ufs_hba *hba,
int ufshcd_query_attr(struct ufs_hba *hba, enum query_opcode opcode,
enum attr_idn idn, u8 index, u8 selector, u32 *attr_val);
int ufshcd_query_flag(struct ufs_hba *hba, enum query_opcode opcode,
- enum flag_idn idn, u8 index, bool *flag_res);
+ enum flag_idn idn, u8 index, bool *flag_res, u8 selector);
void ufshcd_auto_hibern8_enable(struct ufs_hba *hba);
void ufshcd_auto_hibern8_update(struct ufs_hba *hba, u32 ahit);