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UPSTREAM: scsi: ufs: Only include power management code if necessary

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This patch slightly reduces the UFS driver size if built with power
management support disabled.

Link: https://lore.kernel.org/r/20210722033439.26550-4-bvanassche@acm.org
Cc: Adrian Hunter <adrian.hunter@intel.com>
Cc: Stanley Chu <stanley.chu@mediatek.com>
Cc: Can Guo <cang@codeaurora.org>
Cc: Asutosh Das <asutoshd@codeaurora.org>
Reviewed-by: Avri Altman <avri.altman@wdc.com>
Reviewed-by: Bean Huo <beanhuo@micron.com>
Reviewed-by: Daejun Park <daejun7.park@samsung.com>
Reviewed-by: Stanley Chu <stanley.chu@mediatek.com>
Signed-off-by: Bart Van Assche <bvanassche@acm.org>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
(cherry picked from commit 9bb25e5d9d)
Bug: 204438323
Signed-off-by: Bart Van Assche <bvanassche@google.com>
Change-Id: I80e4c124f546e2abb1b08444d0e2dc38546f4688
This commit is contained in:
Bart Van Assche
2021-07-21 20:34:24 -07:00
committed by Bart Van Assche
parent bc35e28601
commit 1eec916379
2 changed files with 12 additions and 0 deletions
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8
drivers/scsi/ufs/ufshcd.c
View File

@@ -8721,6 +8721,7 @@ static void ufshcd_vreg_set_lpm(struct ufs_hba *hba)
usleep_range(5000, 5100);
}
#ifdef CONFIG_PM
static int ufshcd_vreg_set_hpm(struct ufs_hba *hba)
{
int ret = 0;
@@ -8748,6 +8749,7 @@ vcc_disable:
out:
return ret;
}
#endif /* CONFIG_PM */
static void ufshcd_hba_vreg_set_lpm(struct ufs_hba *hba)
{
@@ -9155,6 +9157,7 @@ static int ufshcd_suspend(struct ufs_hba *hba)
return ret;
}
#ifdef CONFIG_PM
/**
* ufshcd_resume - helper function for resume operations
* @hba: per adapter instance
@@ -9192,7 +9195,9 @@ out:
ufshcd_update_evt_hist(hba, UFS_EVT_RESUME_ERR, (u32)ret);
return ret;
}
#endif /* CONFIG_PM */
#ifdef CONFIG_PM_SLEEP
/**
* ufshcd_system_suspend - system suspend callback
* @dev: Device associated with the UFS controller.
@@ -9248,7 +9253,9 @@ out:
return ret;
}
EXPORT_SYMBOL(ufshcd_system_resume);
#endif /* CONFIG_PM_SLEEP */
#ifdef CONFIG_PM
/**
* ufshcd_runtime_suspend - runtime suspend callback
* @dev: Device associated with the UFS controller.
@@ -9296,6 +9303,7 @@ int ufshcd_runtime_resume(struct device *dev)
return ret;
}
EXPORT_SYMBOL(ufshcd_runtime_resume);
#endif /* CONFIG_PM */
/**
* ufshcd_shutdown - shutdown routine

4
drivers/scsi/ufs/ufshcd.h
View File

@@ -1084,10 +1084,14 @@ static inline u8 ufshcd_wb_get_query_index(struct ufs_hba *hba)
return 0;
}
#ifdef CONFIG_PM
extern int ufshcd_runtime_suspend(struct device *dev);
extern int ufshcd_runtime_resume(struct device *dev);
#endif
#ifdef CONFIG_PM_SLEEP
extern int ufshcd_system_suspend(struct device *dev);
extern int ufshcd_system_resume(struct device *dev);
#endif
extern int ufshcd_shutdown(struct ufs_hba *hba);
extern int ufshcd_dme_configure_adapt(struct ufs_hba *hba,
int agreed_gear,