scsi: ufs: Delete struct ufs_dev_desc

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.

Link: https://lore.kernel.org/r/20200120130820.1737-3-huobean@gmail.comReviewed-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>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>

drivers/scsi/ufs/ufs-mediatek.c

@@ -474,10 +474,11 @@ static void ufs_mtk_dbg_register_dump(struct ufs_hba *hba)
 	ufshcd_dump_regs(hba, REG_UFS_PROBE, 0x4, "Debug Probe ");
 }
 
-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;

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;
 

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;
 };
 

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),		   \
 }
 

drivers/scsi/ufs/ufshcd.c

@@ -6586,16 +6586,13 @@ 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);
@@ -6616,12 +6613,12 @@ 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);
@@ -6639,23 +6636,25 @@ 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;
 	}
 }
@@ -6807,8 +6806,7 @@ 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);
@@ -6822,7 +6820,7 @@ 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)
@@ -6948,7 +6946,6 @@ 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();
 
@@ -6977,16 +6974,15 @@ 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);
@@ -7547,6 +7543,7 @@ 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);
 	}
 }
 

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);
@@ -1057,11 +1057,10 @@ 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;
 }