The LDO's Vout is adjustable if the hardware setting allows it,
and it can be set either 1800mv or 3300mv.
Signed-off-by: Alina Yu <[email protected]>
---
v3
- Seperate LDO vsel and discharge change to seperate patches
---
drivers/regulator/rtq2208-regulator.c | 56 ++++++++++++++++++++++-------------
1 file changed, 36 insertions(+), 20 deletions(-)
diff --git a/drivers/regulator/rtq2208-regulator.c b/drivers/regulator/rtq2208-regulator.c
index dfa293a..00da787 100644
--- a/drivers/regulator/rtq2208-regulator.c
+++ b/drivers/regulator/rtq2208-regulator.c
@@ -26,6 +26,7 @@
#define RTQ2208_REG_BUCK_H_CFG0 0xA2
#define RTQ2208_REG_LDO1_CFG 0xB1
#define RTQ2208_REG_LDO2_CFG 0xC1
+#define RTQ2208_REG_LDO_DVS_CTRL 0xD0
/* Mask */
#define RTQ2208_BUCK_NR_MTP_SEL_MASK GENMASK(7, 0)
@@ -40,6 +41,8 @@
#define RTQ2208_EN_DIS_MASK BIT(0)
#define RTQ2208_BUCK_RAMP_SEL_MASK GENMASK(2, 0)
#define RTQ2208_HD_INT_MASK BIT(0)
+#define RTQ2208_LDO1_VOSEL_SD_MASK BIT(5)
+#define RTQ2208_LDO2_VOSEL_SD_MASK BIT(7)
/* Size */
#define RTQ2208_VOUT_MAXNUM 256
@@ -323,14 +326,23 @@ static irqreturn_t rtq2208_irq_handler(int irqno, void *devid)
return IRQ_HANDLED;
}
-#define RTQ2208_REGULATOR_INFO(_name, _base) \
-{ \
- .name = #_name, \
- .base = _base, \
+#define BUCK_INFO(_name, _id) \
+{ \
+ .name = _name, \
+ .base = RTQ2208_REG_BUCK_##_id##_CFG0, \
+ .enable_reg = BUCK_RG_SHIFT(RTQ2208_REG_BUCK_##_id##_CFG0, 2), \
+ .dis_reg = RTQ2208_REG_BUCK_##_id##_CFG0, \
}
-#define BUCK_RG_BASE(_id) RTQ2208_REG_BUCK_##_id##_CFG0
+
+#define LDO_INFO(_name, _id) \
+{ \
+ .name = _name, \
+ .base = RTQ2208_REG_LDO##_id##_CFG, \
+ .enable_reg = RTQ2208_REG_LDO##_id##_CFG, \
+ .vsel_mask = RTQ2208_LDO##_id##_VOSEL_SD_MASK, \
+}
+
#define BUCK_RG_SHIFT(_base, _shift) (_base + _shift)
-#define LDO_RG_BASE(_id) RTQ2208_REG_LDO##_id##_CFG
#define LDO_RG_SHIFT(_base, _shift) (_base + _shift)
#define VSEL_SHIFT(_sel) (_sel ? 3 : 1)
#define MTP_SEL_MASK(_sel) RTQ2208_BUCK_EN_NR_MTP_SEL##_sel##_MASK
@@ -383,17 +395,22 @@ static void rtq2208_init_regulator_desc(struct rtq2208_regulator_desc *rdesc, in
static const struct {
char *name;
int base;
+ int enable_reg;
+ int dis_reg;
+ int dis_mask;
+ int dis_on;
+ int vsel_mask;
} regulator_info[] = {
- RTQ2208_REGULATOR_INFO(buck-b, BUCK_RG_BASE(B)),
- RTQ2208_REGULATOR_INFO(buck-c, BUCK_RG_BASE(C)),
- RTQ2208_REGULATOR_INFO(buck-d, BUCK_RG_BASE(D)),
- RTQ2208_REGULATOR_INFO(buck-a, BUCK_RG_BASE(A)),
- RTQ2208_REGULATOR_INFO(buck-f, BUCK_RG_BASE(F)),
- RTQ2208_REGULATOR_INFO(buck-g, BUCK_RG_BASE(G)),
- RTQ2208_REGULATOR_INFO(buck-h, BUCK_RG_BASE(H)),
- RTQ2208_REGULATOR_INFO(buck-e, BUCK_RG_BASE(E)),
- RTQ2208_REGULATOR_INFO(ldo2, LDO_RG_BASE(2)),
- RTQ2208_REGULATOR_INFO(ldo1, LDO_RG_BASE(1)),
+ BUCK_INFO("buck-b", B),
+ BUCK_INFO("buck-c", C),
+ BUCK_INFO("buck-d", D),
+ BUCK_INFO("buck-a", A),
+ BUCK_INFO("buck-f", F),
+ BUCK_INFO("buck-g", G),
+ BUCK_INFO("buck-h", H),
+ BUCK_INFO("buck-e", E),
+ LDO_INFO("ldo2", 2),
+ LDO_INFO("ldo1", 1),
}, *curr_info;
curr_info = regulator_info + idx;
@@ -408,12 +425,12 @@ static void rtq2208_init_regulator_desc(struct rtq2208_regulator_desc *rdesc, in
desc->active_discharge_on = RTQ2208_EN_DIS_MASK;
desc->active_discharge_off = 0;
desc->active_discharge_mask = RTQ2208_EN_DIS_MASK;
+ desc->enable_reg = curr_info->enable_reg;
rdesc->mode_mask = RTQ2208_BUCK_NRMODE_MASK;
if (idx >= RTQ2208_BUCK_B && idx <= RTQ2208_BUCK_E) {
/* init buck desc */
- desc->enable_reg = BUCK_RG_SHIFT(curr_info->base, 2);
desc->ops = &rtq2208_regulator_buck_ops;
desc->vsel_reg = curr_info->base + VSEL_SHIFT(mtp_sel);
desc->vsel_mask = RTQ2208_BUCK_NR_MTP_SEL_MASK;
@@ -430,10 +447,9 @@ static void rtq2208_init_regulator_desc(struct rtq2208_regulator_desc *rdesc, in
rdesc->suspend_mode_mask = RTQ2208_BUCK_STRMODE_MASK;
} else {
/* init ldo desc */
- desc->enable_reg = curr_info->base;
- desc->ops = &rtq2208_regulator_ldo_ops;
- desc->n_voltages = 1;
desc->active_discharge_reg = LDO_RG_SHIFT(curr_info->base, 2);
+ desc->vsel_reg = RTQ2208_REG_LDO_DVS_CTRL;
+ desc->vsel_mask = curr_info->vsel_mask;
rdesc->suspend_config_reg = curr_info->base;
rdesc->suspend_enable_mask = RTQ2208_LDO_EN_STR_MASK;
--
2.7.4