From: Elaine Zhang
Add support for the rk805 regulator. The regulator module consists
of 4 DCDCs, 3 LDOs.
The output voltages are configurable and are meant to supply power
to the main processor and other components.
Signed-off-by: Elaine Zhang
Signed-off-by: Joseph Chen
Acked-by: Mark Brown
---
drivers/regulator/Kconfig | 4 +-
drivers/regulator/rk808-regulator.c | 130
2 files changed, 132 insertions(+), 2 deletions(-)
diff --git a/drivers/regulator/Kconfig b/drivers/regulator/Kconfig
index be06eb2..285e280 100644
--- a/drivers/regulator/Kconfig
+++ b/drivers/regulator/Kconfig
@@ -650,11 +650,11 @@ config REGULATOR_RC5T583
outputs which can be controlled by i2c communication.
config REGULATOR_RK808
- tristate "Rockchip RK808/RK818 Power regulators"
+ tristate "Rockchip RK805/RK808/RK818 Power regulators"
depends on MFD_RK808
help
Select this option to enable the power regulator of ROCKCHIP
- PMIC RK808 and RK818.
+ PMIC RK805,RK808 and RK818.
This driver supports the control of different power rails of device
through regulator interface. The device supports multiple DCDC/LDO
outputs which can be controlled by i2c communication.
diff --git a/drivers/regulator/rk808-regulator.c
b/drivers/regulator/rk808-regulator.c
index fb44d52..128c81e 100644
--- a/drivers/regulator/rk808-regulator.c
+++ b/drivers/regulator/rk808-regulator.c
@@ -65,6 +65,27 @@
/* max steps for increase voltage of Buck1/2, equal 100mv*/
#define MAX_STEPS_ONE_TIME 8
+#define RK805_DESC(_id, _match, _supply, _min, _max, _step, _vreg, \
+ _vmask, _ereg, _emask, _etime) \
+ [_id] = { \
+ .name = (_match), \
+ .supply_name= (_supply),\
+ .of_match = of_match_ptr(_match), \
+ .regulators_node = of_match_ptr("regulators"), \
+ .type = REGULATOR_VOLTAGE,\
+ .id = (_id),\
+ .n_voltages = (((_max) - (_min)) / (_step) + 1),\
+ .owner = THIS_MODULE, \
+ .min_uV = (_min) * 1000,\
+ .uV_step= (_step) * 1000, \
+ .vsel_reg = (_vreg), \
+ .vsel_mask = (_vmask), \
+ .enable_reg = (_ereg), \
+ .enable_mask= (_emask), \
+ .enable_time= (_etime), \
+ .ops= &rk805_reg_ops, \
+ }
+
#define RK8XX_DESC(_id, _match, _supply, _min, _max, _step, _vreg, \
_vmask, _ereg, _emask, _etime) \
[_id] = { \
@@ -298,6 +319,28 @@ static int rk808_set_suspend_voltage_range(struct
regulator_dev *rdev, int uv)
sel);
}
+static int rk805_set_suspend_enable(struct regulator_dev *rdev)
+{
+ unsigned int reg;
+
+ reg = rdev->desc->enable_reg + RK808_SLP_SET_OFF_REG_OFFSET;
+
+ return regmap_update_bits(rdev->regmap, reg,
+ rdev->desc->enable_mask,
+ rdev->desc->enable_mask);
+}
+
+static int rk805_set_suspend_disable(struct regulator_dev *rdev)
+{
+ unsigned int reg;
+
+ reg = rdev->desc->enable_reg + RK808_SLP_SET_OFF_REG_OFFSET;
+
+ return regmap_update_bits(rdev->regmap, reg,
+ rdev->desc->enable_mask,
+ 0);
+}
+
static int rk808_set_suspend_enable(struct regulator_dev *rdev)
{
unsigned int reg;
@@ -320,6 +363,27 @@ static int rk808_set_suspend_disable(struct regulator_dev
*rdev)
rdev->desc->enable_mask);
}
+static struct regulator_ops rk805_reg_ops = {
+ .list_voltage = regulator_list_voltage_linear,
+ .map_voltage= regulator_map_voltage_linear,
+ .get_voltage_sel= regulator_get_voltage_sel_regmap,
+ .set_voltage_sel= regulator_set_voltage_sel_regmap,
+ .enable = regulator_enable_regmap,
+ .disable= regulator_disable_regmap,
+ .is_enabled = regulator_is_enabled_regmap,
+ .set_suspend_voltage= rk808_set_suspend_voltage,
+ .set_suspend_enable = rk805_set_suspend_ena
