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Commit 2167ee55 authored by Dolev Raviv's avatar Dolev Raviv Committed by Subhash Jadavani
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scsi: ufs: link-startup on hibern8 exit error 



There is no error recovery when encountering Hibern8 exit
errors. To recover from such errors it is required to re-init
the link and the device.

Change-Id: Ib73aaebc6f5c4eff0e5903fcdfd48aa9314bd946
Signed-off-by: default avatarDolev Raviv <draviv@codeaurora.org>
parent eb1bff22

drivers/scsi/ufs/ufshcd.c

+8 −1
Original line number Diff line number Diff line
@@ -251,6 +251,7 @@ static int __ufshcd_setup_clocks(struct ufs_hba *hba, bool on, 
static int ufshcd_setup_clocks(struct ufs_hba *hba, bool on);

static int ufshcd_uic_hibern8_exit(struct ufs_hba *hba);

static int ufshcd_uic_hibern8_enter(struct ufs_hba *hba);

static int ufshcd_host_reset_and_restore(struct ufs_hba *hba);



static inline void ufshcd_enable_irq(struct ufs_hba *hba)

{
@@ -2496,10 +2497,16 @@ static int ufshcd_uic_hibern8_enter(struct ufs_hba *hba) 
static int ufshcd_uic_hibern8_exit(struct ufs_hba *hba)

{

	struct uic_command uic_cmd = {0};

	int ret;



	uic_cmd.command = UIC_CMD_DME_HIBER_EXIT;

	ret = ufshcd_uic_pwr_ctrl(hba, &uic_cmd);

	if (ret) {

		ufshcd_set_link_off(hba);

		ret = ufshcd_host_reset_and_restore(hba);

	}



	return ufshcd_uic_pwr_ctrl(hba, &uic_cmd);

	return ret;

}



 /**