[PATCH v4 2/8] scsi: ufs: Delete struct ufs_dev_desc

Bean Huo
2020-01-20T13:09:38Z

In consideration of UFS host driver uses parameters of struct
ufs_dev_desc, move its parameters to struct ufs_dev_info,
delete struct ufs_dev_desc.

Reviewed-by: Bart Van Assche <bvanassche@acm.org>
Reviewed-by: Asutosh Das <asutoshd@codeaurora.org>
Reviewed-by: Alim Akhtar <alim.akhtar@samsung.com>
Reviewed-by: Stanley Chu <stanley.chu@mediatek.com>
Signed-off-by: Bean Huo <beanhuo@micron.com>
---
drivers/scsi/ufs/ufs-mediatek.c | 7 ++---
drivers/scsi/ufs/ufs-qcom.c | 3 +--
drivers/scsi/ufs/ufs.h | 11 +-------
drivers/scsi/ufs/ufs_quirks.h | 9 ++++---
drivers/scsi/ufs/ufshcd.c | 47 +++++++++++++++------------------
drivers/scsi/ufs/ufshcd.h | 7 +++--
6 files changed, 36 insertions(+), 48 deletions(-)

diff --git a/drivers/scsi/ufs/ufs-mediatek.c b/drivers/scsi/ufs/ufs-mediatek.c
index 8d999c0e60fe..514a9b85fe0a 100644
--- a/drivers/scsi/ufs/ufs-mediatek.c
+++ b/drivers/scsi/ufs/ufs-mediatek.c
@@ -406,10 +406,11 @@ static int ufs_mtk_resume(struct ufs_hba *hba, enum ufs_pm_op pm_op)
return 0;
}

-static int ufs_mtk_apply_dev_quirks(struct ufs_hba *hba,
- struct ufs_dev_desc *card)
+static int ufs_mtk_apply_dev_quirks(struct ufs_hba *hba)
{
- if (card->wmanufacturerid == UFS_VENDOR_SAMSUNG)
+ struct ufs_dev_info *dev_info = &hba->dev_info;
+
+ if (dev_info->wmanufacturerid == UFS_VENDOR_SAMSUNG)
ufshcd_dme_set(hba, UIC_ARG_MIB(PA_TACTIVATE), 6);

return 0;
diff --git a/drivers/scsi/ufs/ufs-qcom.c b/drivers/scsi/ufs/ufs-qcom.c
index ebb5c66e069f..c69c29a1ceb9 100644
--- a/drivers/scsi/ufs/ufs-qcom.c
+++ b/drivers/scsi/ufs/ufs-qcom.c
@@ -949,8 +949,7 @@ static int ufs_qcom_quirk_host_pa_saveconfigtime(struct ufs_hba *hba)
return err;
}

-static int ufs_qcom_apply_dev_quirks(struct ufs_hba *hba,
- struct ufs_dev_desc *card)
+static int ufs_qcom_apply_dev_quirks(struct ufs_hba *hba)
{
int err = 0;

diff --git a/drivers/scsi/ufs/ufs.h b/drivers/scsi/ufs/ufs.h
index c89f21698629..fcc9b4d4e56f 100644
--- a/drivers/scsi/ufs/ufs.h
+++ b/drivers/scsi/ufs/ufs.h
@@ -530,17 +530,8 @@ struct ufs_dev_info {
bool f_power_on_wp_en;
/* Keeps information if any of the LU is power on write protected */
bool is_lu_power_on_wp;
-};
-
-#define MAX_MODEL_LEN 16
-/**
- * ufs_dev_desc - ufs device details from the device descriptor
- *
- * @wmanufacturerid: card details
- * @model: card model
- */
-struct ufs_dev_desc {
u16 wmanufacturerid;
+ /*UFS device Product Name */
u8 *model;
};

diff --git a/drivers/scsi/ufs/ufs_quirks.h b/drivers/scsi/ufs/ufs_quirks.h
index fe6cad9b2a0d..d0ab147f98d3 100644
--- a/drivers/scsi/ufs/ufs_quirks.h
+++ b/drivers/scsi/ufs/ufs_quirks.h
@@ -22,16 +22,17 @@
* @quirk: device quirk
*/
struct ufs_dev_fix {
- struct ufs_dev_desc card;
+ u16 wmanufacturerid;
+ u8 *model;
unsigned int quirk;
};

-#define END_FIX { { 0 }, 0 }
+#define END_FIX { }

/* add specific device quirk */
#define UFS_FIX(_vendor, _model, _quirk) { \
- .card.wmanufacturerid = (_vendor),\
- .card.model = (_model), \
+ .wmanufacturerid = (_vendor),\
+ .model = (_model), \
.quirk = (_quirk), \
}

diff --git a/drivers/scsi/ufs/ufshcd.c b/drivers/scsi/ufs/ufshcd.c
index 9a9085a7bcc5..58ef45b80cb0 100644
--- a/drivers/scsi/ufs/ufshcd.c
+++ b/drivers/scsi/ufs/ufshcd.c
@@ -6583,16 +6583,13 @@ static int ufshcd_scsi_add_wlus(struct ufs_hba *hba)
return ret;
}

-static int ufs_get_device_desc(struct ufs_hba *hba,
- struct ufs_dev_desc *dev_desc)
+static int ufs_get_device_desc(struct ufs_hba *hba)
{
int err;
size_t buff_len;
u8 model_index;
u8 *desc_buf;
-
- if (!dev_desc)
- return -EINVAL;
+ struct ufs_dev_info *dev_info = &hba->dev_info;

buff_len = max_t(size_t, hba->desc_size.dev_desc,
QUERY_DESC_MAX_SIZE + 1);
@@ -6613,12 +6610,12 @@ static int ufs_get_device_desc(struct ufs_hba *hba,
* getting vendor (manufacturerID) and Bank Index in big endian
* format
*/
- dev_desc->wmanufacturerid = desc_buf[DEVICE_DESC_PARAM_MANF_ID] << 8 |
+ dev_info->wmanufacturerid = desc_buf[DEVICE_DESC_PARAM_MANF_ID] << 8 |
desc_buf[DEVICE_DESC_PARAM_MANF_ID + 1];

model_index = desc_buf[DEVICE_DESC_PARAM_PRDCT_NAME];
err = ufshcd_read_string_desc(hba, model_index,
- &dev_desc->model, SD_ASCII_STD);
+ &dev_info->model, SD_ASCII_STD);
if (err < 0) {
dev_err(hba->dev, "%s: Failed reading Product Name. err = %d\n",
__func__, err);
@@ -6636,23 +6633,25 @@ static int ufs_get_device_desc(struct ufs_hba *hba,
return err;
}

-static void ufs_put_device_desc(struct ufs_dev_desc *dev_desc)
+static void ufs_put_device_desc(struct ufs_hba *hba)
{
- kfree(dev_desc->model);
- dev_desc->model = NULL;
+ struct ufs_dev_info *dev_info = &hba->dev_info;
+
+ kfree(dev_info->model);
+ dev_info->model = NULL;
}

-static void ufs_fixup_device_setup(struct ufs_hba *hba,
- struct ufs_dev_desc *dev_desc)
+static void ufs_fixup_device_setup(struct ufs_hba *hba)
{
struct ufs_dev_fix *f;
+ struct ufs_dev_info *dev_info = &hba->dev_info;

for (f = ufs_fixups; f->quirk; f++) {
- if ((f->card.wmanufacturerid == dev_desc->wmanufacturerid ||
- f->card.wmanufacturerid == UFS_ANY_VENDOR) &&
- ((dev_desc->model &&
- STR_PRFX_EQUAL(f->card.model, dev_desc->model)) ||
- !strcmp(f->card.model, UFS_ANY_MODEL)))
+ if ((f->wmanufacturerid == dev_info->wmanufacturerid ||
+ f->wmanufacturerid == UFS_ANY_VENDOR) &&
+ ((dev_info->model &&
+ STR_PRFX_EQUAL(f->model, dev_info->model)) ||
+ !strcmp(f->model, UFS_ANY_MODEL)))
hba->dev_quirks |= f->quirk;
}
}
@@ -6804,8 +6803,7 @@ static int ufshcd_quirk_tune_host_pa_tactivate(struct ufs_hba *hba)
return ret;
}

-static void ufshcd_tune_unipro_params(struct ufs_hba *hba,
- struct ufs_dev_desc *card)
+static void ufshcd_tune_unipro_params(struct ufs_hba *hba)
{
if (ufshcd_is_unipro_pa_params_tuning_req(hba)) {
ufshcd_tune_pa_tactivate(hba);
@@ -6819,7 +6817,7 @@ static void ufshcd_tune_unipro_params(struct ufs_hba *hba,
if (hba->dev_quirks & UFS_DEVICE_QUIRK_HOST_PA_TACTIVATE)
ufshcd_quirk_tune_host_pa_tactivate(hba);

- ufshcd_vops_apply_dev_quirks(hba, card);
+ ufshcd_vops_apply_dev_quirks(hba);
}

static void ufshcd_clear_dbg_ufs_stats(struct ufs_hba *hba)
@@ -6945,7 +6943,6 @@ static int ufshcd_set_dev_ref_clk(struct ufs_hba *hba)
*/
static int ufshcd_probe_hba(struct ufs_hba *hba)
{
- struct ufs_dev_desc card = {0};
int ret;
ktime_t start = ktime_get();

@@ -6974,16 +6971,15 @@ static int ufshcd_probe_hba(struct ufs_hba *hba)
/* Init check for device descriptor sizes */
ufshcd_init_desc_sizes(hba);

- ret = ufs_get_device_desc(hba, &card);
+ ret = ufs_get_device_desc(hba);
if (ret) {
dev_err(hba->dev, "%s: Failed getting device info. err = %d\n",
__func__, ret);
goto out;
}

- ufs_fixup_device_setup(hba, &card);
- ufshcd_tune_unipro_params(hba, &card);
- ufs_put_device_desc(&card);
+ ufs_fixup_device_setup(hba);
+ ufshcd_tune_unipro_params(hba);

/* UFS device is also active now */
ufshcd_set_ufs_dev_active(hba);
@@ -7544,6 +7540,7 @@ static void ufshcd_hba_exit(struct ufs_hba *hba)
ufshcd_setup_clocks(hba, false);
ufshcd_setup_hba_vreg(hba, false);
hba->is_powered = false;
+ ufs_put_device_desc(hba);
}
}

diff --git a/drivers/scsi/ufs/ufshcd.h b/drivers/scsi/ufs/ufshcd.h
index b1a1c65be8b1..32b6714f25a5 100644
--- a/drivers/scsi/ufs/ufshcd.h
+++ b/drivers/scsi/ufs/ufshcd.h
@@ -320,7 +320,7 @@ struct ufs_hba_variant_ops {
void (*setup_task_mgmt)(struct ufs_hba *, int, u8);
void (*hibern8_notify)(struct ufs_hba *, enum uic_cmd_dme,
enum ufs_notify_change_status);
- int (*apply_dev_quirks)(struct ufs_hba *, struct ufs_dev_desc *);
+ int (*apply_dev_quirks)(struct ufs_hba *hba);
int (*suspend)(struct ufs_hba *, enum ufs_pm_op);
int (*resume)(struct ufs_hba *, enum ufs_pm_op);
void (*dbg_register_dump)(struct ufs_hba *hba);
@@ -1054,11 +1054,10 @@ static inline void ufshcd_vops_hibern8_notify(struct ufs_hba *hba,
return hba->vops->hibern8_notify(hba, cmd, status);
}

-static inline int ufshcd_vops_apply_dev_quirks(struct ufs_hba *hba,
- struct ufs_dev_desc *card)
+static inline int ufshcd_vops_apply_dev_quirks(struct ufs_hba *hba)
{
if (hba->vops && hba->vops->apply_dev_quirks)
- return hba->vops->apply_dev_quirks(hba, card);
+ return hba->vops->apply_dev_quirks(hba);
return 0;
}

--
2.17.1