Commit f8162ac7 authored by Stanley Chu's avatar Stanley Chu Committed by Martin K. Petersen
Browse files

scsi: ufs: Allow regulators being always-on 

Introduce a flag "always_on" in struct ufs_vreg to allow vendors to keep
the regulator always-on.

Link: https://lore.kernel.org/r/20201207054955.24366-2-stanley.chu@mediatek.com


Reviewed-by: default avatarAndy Teng <andy.teng@mediatek.com>
Signed-off-by: default avatarStanley Chu <stanley.chu@mediatek.com>
Signed-off-by: default avatarMartin K. Petersen <martin.petersen@oracle.com>
parent 1918651f

drivers/scsi/ufs/ufs.h

+1 −0
Original line number Diff line number Diff line
@@ -512,6 +512,7 @@ struct ufs_query_res { 
struct ufs_vreg {

	struct regulator *reg;

	const char *name;

	bool always_on;

	bool enabled;

	int min_uV;

	int max_uV;

drivers/scsi/ufs/ufshcd.c

+1 −1
Original line number Diff line number Diff line
@@ -8012,7 +8012,7 @@ static int ufshcd_disable_vreg(struct device *dev, struct ufs_vreg *vreg) 
{

	int ret = 0;



	if (!vreg || !vreg->enabled)

	if (!vreg || !vreg->enabled || vreg->always_on)

		goto out;



	ret = regulator_disable(vreg->reg);