Skip to content

Commit

Permalink
---
Browse files Browse the repository at this point in the history
yaml
---
r: 252147
b: refs/heads/master
c: 21657eb
h: refs/heads/master
i:
  252145: 9ba9596
  252143: 03c7eeb
v: v3
  • Loading branch information
Saquib Herman authored and Liam Girdwood committed May 27, 2011
1 parent 2b98530 commit 48ee57c
Show file tree
Hide file tree
Showing 2 changed files with 31 additions and 2 deletions.
2 changes: 1 addition & 1 deletion [refs]
Original file line number Diff line number Diff line change
@@ -1,2 +1,2 @@
---
refs/heads/master: f0f060bdd55e36adff4cc80b2a4ed026774db7a9
refs/heads/master: 21657ebf868b9c7c6c0cab15a6797c3f1af64295
31 changes: 30 additions & 1 deletion trunk/drivers/regulator/twl-regulator.c
Original file line number Diff line number Diff line change
Expand Up @@ -76,6 +76,11 @@ struct twlreg_info {
#define VREG_BC_PROC 3
#define VREG_BC_CLK_RST 4

/* TWL6030 LDO register values for CFG_STATE */
#define TWL6030_CFG_STATE_OFF 0x00
#define TWL6030_CFG_STATE_ON 0x01
#define TWL6030_CFG_STATE_GRP_SHIFT 5

static inline int
twlreg_read(struct twlreg_info *info, unsigned slave_subgp, unsigned offset)
{
Expand Down Expand Up @@ -149,6 +154,11 @@ static int twlreg_enable(struct regulator_dev *rdev)

ret = twlreg_write(info, TWL_MODULE_PM_RECEIVER, VREG_GRP, grp);

if (!ret && twl_class_is_6030())
ret = twlreg_write(info, TWL_MODULE_PM_RECEIVER, VREG_STATE,
grp << TWL6030_CFG_STATE_GRP_SHIFT |
TWL6030_CFG_STATE_ON);

udelay(info->delay);

return ret;
Expand All @@ -158,17 +168,36 @@ static int twlreg_disable(struct regulator_dev *rdev)
{
struct twlreg_info *info = rdev_get_drvdata(rdev);
int grp;
int ret;

grp = twlreg_read(info, TWL_MODULE_PM_RECEIVER, VREG_GRP);
if (grp < 0)
return grp;

/* For 6030, set the off state for all grps enabled */
if (twl_class_is_6030()) {
ret = twlreg_write(info, TWL_MODULE_PM_RECEIVER, VREG_STATE,
(grp & (P1_GRP_6030 | P2_GRP_6030 | P3_GRP_6030)) <<
TWL6030_CFG_STATE_GRP_SHIFT |
TWL6030_CFG_STATE_OFF);
if (ret)
return ret;
}

if (twl_class_is_4030())
grp &= ~(P1_GRP_4030 | P2_GRP_4030 | P3_GRP_4030);
else
grp &= ~(P1_GRP_6030 | P2_GRP_6030 | P3_GRP_6030);

return twlreg_write(info, TWL_MODULE_PM_RECEIVER, VREG_GRP, grp);
ret = twlreg_write(info, TWL_MODULE_PM_RECEIVER, VREG_GRP, grp);

/* Next, associate cleared grp in state register */
if (!ret && twl_class_is_6030())
ret = twlreg_write(info, TWL_MODULE_PM_RECEIVER, VREG_STATE,
grp << TWL6030_CFG_STATE_GRP_SHIFT |
TWL6030_CFG_STATE_OFF);

return ret;
}

static int twlreg_get_status(struct regulator_dev *rdev)
Expand Down

0 comments on commit 48ee57c

Please sign in to comment.