Commit a5fe372d authored by Stanley Chu's avatar Stanley Chu Committed by Martin K. Petersen
Browse files

scsi: ufs: add device reset history for vendor implementations 

Device reset history shall be also added for vendor's device reset variant
operation implementation.

Cc: Alim Akhtar <alim.akhtar@samsung.com>
Cc: Asutosh Das <asutoshd@codeaurora.org>
Cc: Avri Altman <avri.altman@wdc.com>
Cc: Bart Van Assche <bvanassche@acm.org>
Cc: Bean Huo <beanhuo@micron.com>
Cc: Can Guo <cang@codeaurora.org>
Cc: Matthias Brugger <matthias.bgg@gmail.com>
Link: https://lore.kernel.org/r/1578147968-30938-3-git-send-email-stanley.chu@mediatek.com


Reviewed-by: default avatarBean Huo <beanhuo@micron.com>
Reviewed-by: default avatarAsutosh Das <asutoshd@codeaurora.org>
Signed-off-by: default avatarStanley Chu <stanley.chu@mediatek.com>
Signed-off-by: default avatarMartin K. Petersen <martin.petersen@oracle.com>
parent 645728a6

drivers/scsi/ufs/ufshcd.c

+3 −2
Original line number Diff line number Diff line
@@ -4346,13 +4346,14 @@ static inline int ufshcd_disable_device_tx_lcc(struct ufs_hba *hba) 
	return ufshcd_disable_tx_lcc(hba, true);

}



static void ufshcd_update_reg_hist(struct ufs_err_reg_hist *reg_hist,

void ufshcd_update_reg_hist(struct ufs_err_reg_hist *reg_hist,

			    u32 reg)

{

	reg_hist->reg[reg_hist->pos] = reg;

	reg_hist->tstamp[reg_hist->pos] = ktime_get();

	reg_hist->pos = (reg_hist->pos + 1) % UFS_ERR_REG_HIST_LENGTH;

}

EXPORT_SYMBOL_GPL(ufshcd_update_reg_hist);



/**

 * ufshcd_link_startup - Initialize unipro link startup

drivers/scsi/ufs/ufshcd.h

+5 −1
Original line number Diff line number Diff line
@@ -805,6 +805,8 @@ int ufshcd_wait_for_register(struct ufs_hba *hba, u32 reg, u32 mask, 
				u32 val, unsigned long interval_us,

				unsigned long timeout_ms, bool can_sleep);

void ufshcd_parse_dev_ref_clk_freq(struct ufs_hba *hba, struct clk *refclk);

void ufshcd_update_reg_hist(struct ufs_err_reg_hist *reg_hist,

			    u32 reg);



static inline void check_upiu_size(void)

{
@@ -1083,8 +1085,10 @@ static inline void ufshcd_vops_dbg_register_dump(struct ufs_hba *hba) 


static inline void ufshcd_vops_device_reset(struct ufs_hba *hba)

{

	if (hba->vops && hba->vops->device_reset)

	if (hba->vops && hba->vops->device_reset) {

		hba->vops->device_reset(hba);

		ufshcd_update_reg_hist(&hba->ufs_stats.dev_reset, 0);

	}

}



extern struct ufs_pm_lvl_states ufs_pm_lvl_states[];