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ANDROID: scsi: ufs: add ->fill_prdt() variant op

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Add a ->fill_prdt() variant op so that UFS platform drivers can
initialize variant-specific PRDT fields.

This is needed for FMP support.

Bug: 166139333
Bug: 162257402
Change-Id: Icd07b5e475555ef3eaa0ae9e18a1ae9a4b981679
Signed-off-by: Eric Biggers <ebiggers@google.com>
This commit is contained in:
Eric Biggers
2020-08-22 10:47:33 -07:00
committed by Alistair Delva
parent a2ca8408de
commit 617dda8838
2 changed files with 15 additions and 1 deletions
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2
drivers/scsi/ufs/ufshcd.c
View File

@@ -2211,7 +2211,7 @@ static int ufshcd_map_sg(struct ufs_hba *hba, struct ufshcd_lrb *lrbp)
lrbp->utr_descriptor_ptr->prd_table_length = 0;
}
return 0;
return ufshcd_vops_fill_prdt(hba, lrbp, sg_segments);
}
/**

14
drivers/scsi/ufs/ufshcd.h
View File

@@ -282,6 +282,8 @@ struct ufs_pwr_mode_info {
* @phy_initialization: used to initialize phys
* @device_reset: called to issue a reset pulse on the UFS device
* @program_key: program or evict an inline encryption key
* @fill_prdt: called after initializing the standard PRDT fields so that any
* variant-specific PRDT fields can be initialized too
*/
struct ufs_hba_variant_ops {
const char *name;
@@ -317,6 +319,8 @@ struct ufs_hba_variant_ops {
void *data);
int (*program_key)(struct ufs_hba *hba,
const union ufs_crypto_cfg_entry *cfg, int slot);
int (*fill_prdt)(struct ufs_hba *hba, struct ufshcd_lrb *lrbp,
unsigned int segments);
};
/* clock gating state */
@@ -1173,6 +1177,16 @@ static inline void ufshcd_vops_config_scaling_param(struct ufs_hba *hba,
hba->vops->config_scaling_param(hba, profile, data);
}
static inline int ufshcd_vops_fill_prdt(struct ufs_hba *hba,
struct ufshcd_lrb *lrbp,
unsigned int segments)
{
if (hba->vops && hba->vops->fill_prdt)
return hba->vops->fill_prdt(hba, lrbp, segments);
return 0;
}
extern struct ufs_pm_lvl_states ufs_pm_lvl_states[];
/*