drivers: st: pmic: update stpmic1 driver
Change-Id: I4a1b281925e0a3a1e2a34b3e363537e4a7f13823 Signed-off-by: Yann Gautier <yann.gautier@st.com> Signed-off-by: Lionel Debieve <lionel.debieve@st.com> Signed-off-by: Nicolas Le Bayon <nicolas.le.bayon@st.com>
This commit is contained in:
Yann Gautier
parent
c948f77136
commit
077f682853
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@ -16,6 +16,10 @@ struct regul_struct {
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uint8_t voltage_table_size;
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uint8_t control_reg;
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uint8_t low_power_reg;
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uint8_t pull_down_reg;
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uint8_t pull_down;
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uint8_t mask_reset_reg;
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uint8_t mask_reset;
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};
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static struct i2c_handle_s *pmic_i2c_handle;
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@ -23,11 +27,11 @@ static uint16_t pmic_i2c_addr;
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/* Voltage tables in mV */
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static const uint16_t buck1_voltage_table[] = {
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600,
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625,
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650,
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675,
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700,
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725,
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725,
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725,
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725,
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725,
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725,
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750,
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775,
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@ -54,7 +58,39 @@ static const uint16_t buck1_voltage_table[] = {
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1300,
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1325,
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1350,
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1350,
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1375,
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1400,
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1425,
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1450,
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1475,
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1500,
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1500,
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1500,
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1500,
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1500,
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1500,
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1500,
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1500,
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1500,
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1500,
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1500,
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1500,
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1500,
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1500,
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1500,
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1500,
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1500,
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1500,
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1500,
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1500,
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1500,
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1500,
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1500,
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1500,
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1500,
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1500,
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1500,
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1500,
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};
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static const uint16_t buck2_voltage_table[] = {
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@ -308,6 +344,7 @@ static const uint16_t ldo3_voltage_table[] = {
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3300,
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3300,
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3300,
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500,
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0xFFFF, /* VREFDDR */
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};
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@ -389,6 +426,10 @@ static const struct regul_struct regulators_table[] = {
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.voltage_table_size = ARRAY_SIZE(buck1_voltage_table),
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.control_reg = BUCK1_CONTROL_REG,
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.low_power_reg = BUCK1_PWRCTRL_REG,
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.pull_down_reg = BUCK_PULL_DOWN_REG,
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.pull_down = BUCK1_PULL_DOWN_SHIFT,
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.mask_reset_reg = MASK_RESET_BUCK_REG,
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.mask_reset = BUCK1_MASK_RESET,
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},
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{
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.dt_node_name = "buck2",
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@ -396,6 +437,10 @@ static const struct regul_struct regulators_table[] = {
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.voltage_table_size = ARRAY_SIZE(buck2_voltage_table),
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.control_reg = BUCK2_CONTROL_REG,
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.low_power_reg = BUCK2_PWRCTRL_REG,
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.pull_down_reg = BUCK_PULL_DOWN_REG,
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.pull_down = BUCK2_PULL_DOWN_SHIFT,
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.mask_reset_reg = MASK_RESET_BUCK_REG,
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.mask_reset = BUCK2_MASK_RESET,
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},
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{
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.dt_node_name = "buck3",
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@ -403,6 +448,10 @@ static const struct regul_struct regulators_table[] = {
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.voltage_table_size = ARRAY_SIZE(buck3_voltage_table),
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.control_reg = BUCK3_CONTROL_REG,
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.low_power_reg = BUCK3_PWRCTRL_REG,
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.pull_down_reg = BUCK_PULL_DOWN_REG,
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.pull_down = BUCK3_PULL_DOWN_SHIFT,
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.mask_reset_reg = MASK_RESET_BUCK_REG,
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.mask_reset = BUCK3_MASK_RESET,
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},
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{
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.dt_node_name = "buck4",
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@ -410,6 +459,10 @@ static const struct regul_struct regulators_table[] = {
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.voltage_table_size = ARRAY_SIZE(buck4_voltage_table),
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.control_reg = BUCK4_CONTROL_REG,
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.low_power_reg = BUCK4_PWRCTRL_REG,
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.pull_down_reg = BUCK_PULL_DOWN_REG,
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.pull_down = BUCK4_PULL_DOWN_SHIFT,
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.mask_reset_reg = MASK_RESET_BUCK_REG,
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.mask_reset = BUCK4_MASK_RESET,
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},
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{
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.dt_node_name = "ldo1",
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@ -417,6 +470,8 @@ static const struct regul_struct regulators_table[] = {
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.voltage_table_size = ARRAY_SIZE(ldo1_voltage_table),
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.control_reg = LDO1_CONTROL_REG,
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.low_power_reg = LDO1_PWRCTRL_REG,
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.mask_reset_reg = MASK_RESET_LDO_REG,
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.mask_reset = LDO1_MASK_RESET,
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},
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{
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.dt_node_name = "ldo2",
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@ -424,6 +479,8 @@ static const struct regul_struct regulators_table[] = {
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.voltage_table_size = ARRAY_SIZE(ldo2_voltage_table),
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.control_reg = LDO2_CONTROL_REG,
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.low_power_reg = LDO2_PWRCTRL_REG,
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.mask_reset_reg = MASK_RESET_LDO_REG,
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.mask_reset = LDO2_MASK_RESET,
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},
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{
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.dt_node_name = "ldo3",
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@ -431,6 +488,8 @@ static const struct regul_struct regulators_table[] = {
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.voltage_table_size = ARRAY_SIZE(ldo3_voltage_table),
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.control_reg = LDO3_CONTROL_REG,
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.low_power_reg = LDO3_PWRCTRL_REG,
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.mask_reset_reg = MASK_RESET_LDO_REG,
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.mask_reset = LDO3_MASK_RESET,
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},
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{
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.dt_node_name = "ldo4",
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@ -438,6 +497,8 @@ static const struct regul_struct regulators_table[] = {
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.voltage_table_size = ARRAY_SIZE(ldo4_voltage_table),
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.control_reg = LDO4_CONTROL_REG,
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.low_power_reg = LDO4_PWRCTRL_REG,
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.mask_reset_reg = MASK_RESET_LDO_REG,
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.mask_reset = LDO4_MASK_RESET,
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},
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{
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.dt_node_name = "ldo5",
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@ -445,6 +506,8 @@ static const struct regul_struct regulators_table[] = {
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.voltage_table_size = ARRAY_SIZE(ldo5_voltage_table),
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.control_reg = LDO5_CONTROL_REG,
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.low_power_reg = LDO5_PWRCTRL_REG,
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.mask_reset_reg = MASK_RESET_LDO_REG,
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.mask_reset = LDO5_MASK_RESET,
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},
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{
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.dt_node_name = "ldo6",
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@ -452,6 +515,8 @@ static const struct regul_struct regulators_table[] = {
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.voltage_table_size = ARRAY_SIZE(ldo6_voltage_table),
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.control_reg = LDO6_CONTROL_REG,
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.low_power_reg = LDO6_PWRCTRL_REG,
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.mask_reset_reg = MASK_RESET_LDO_REG,
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.mask_reset = LDO6_MASK_RESET,
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},
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{
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.dt_node_name = "vref_ddr",
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@ -459,6 +524,8 @@ static const struct regul_struct regulators_table[] = {
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.voltage_table_size = ARRAY_SIZE(vref_ddr_voltage_table),
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.control_reg = VREF_DDR_CONTROL_REG,
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.low_power_reg = VREF_DDR_PWRCTRL_REG,
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.mask_reset_reg = MASK_RESET_LDO_REG,
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.mask_reset = VREF_DDR_MASK_RESET,
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},
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};
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@ -497,6 +564,12 @@ static uint8_t voltage_to_index(const char *name, uint16_t millivolts)
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return 0;
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}
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int stpmic1_powerctrl_on(void)
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{
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return stpmic1_register_update(MAIN_CONTROL_REG, PWRCTRL_PIN_VALID,
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PWRCTRL_PIN_VALID);
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}
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int stpmic1_switch_off(void)
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{
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return stpmic1_register_update(MAIN_CONTROL_REG, 1,
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@ -533,9 +606,72 @@ int stpmic1_regulator_voltage_set(const char *name, uint16_t millivolts)
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{
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uint8_t voltage_index = voltage_to_index(name, millivolts);
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const struct regul_struct *regul = get_regulator_data(name);
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uint8_t mask;
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return stpmic1_register_update(regul->control_reg, voltage_index << 2,
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0xFC);
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/* Voltage can be set for buck<N> or ldo<N> (except ldo4) regulators */
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if (strncmp(name, "buck", 4) == 0) {
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mask = BUCK_VOLTAGE_MASK;
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} else if ((strncmp(name, "ldo", 3) == 0) &&
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(strncmp(name, "ldo4", 4) != 0)) {
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mask = LDO_VOLTAGE_MASK;
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} else {
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return 0;
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}
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return stpmic1_register_update(regul->control_reg,
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voltage_index << LDO_BUCK_VOLTAGE_SHIFT,
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mask);
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}
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int stpmic1_regulator_pull_down_set(const char *name)
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{
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const struct regul_struct *regul = get_regulator_data(name);
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if (regul->pull_down_reg != 0) {
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return stpmic1_register_update(regul->pull_down_reg,
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BIT(regul->pull_down),
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LDO_BUCK_PULL_DOWN_MASK <<
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regul->pull_down);
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}
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return 0;
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}
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int stpmic1_regulator_mask_reset_set(const char *name)
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{
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const struct regul_struct *regul = get_regulator_data(name);
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return stpmic1_register_update(regul->mask_reset_reg,
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BIT(regul->mask_reset),
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LDO_BUCK_RESET_MASK <<
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regul->mask_reset);
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}
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int stpmic1_regulator_voltage_get(const char *name)
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{
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const struct regul_struct *regul = get_regulator_data(name);
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uint8_t value;
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uint8_t mask;
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/* Voltage can be set for buck<N> or ldo<N> (except ldo4) regulators */
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if (strncmp(name, "buck", 4) == 0) {
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mask = BUCK_VOLTAGE_MASK;
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} else if ((strncmp(name, "ldo", 3) == 0) &&
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(strncmp(name, "ldo4", 4) != 0)) {
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mask = LDO_VOLTAGE_MASK;
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} else {
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return 0;
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}
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if (stpmic1_register_read(regul->control_reg, &value))
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return -1;
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value = (value & mask) >> LDO_BUCK_VOLTAGE_SHIFT;
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if (value > regul->voltage_table_size)
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return -1;
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return (int)regul->voltage_table[value];
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}
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int stpmic1_register_read(uint8_t register_id, uint8_t *value)
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@ -553,6 +689,7 @@ int stpmic1_register_write(uint8_t register_id, uint8_t value)
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(uint16_t)register_id,
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I2C_MEMADD_SIZE_8BIT, &value, 1, 100000);
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#if ENABLE_ASSERTIONS
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if (status != 0) {
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return status;
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}
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@ -569,8 +706,9 @@ int stpmic1_register_write(uint8_t register_id, uint8_t value)
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return -1;
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}
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}
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#endif
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return 0;
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return status;
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}
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int stpmic1_register_update(uint8_t register_id, uint8_t value, uint8_t mask)
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@ -583,13 +721,8 @@ int stpmic1_register_update(uint8_t register_id, uint8_t value, uint8_t mask)
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return status;
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}
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/* Clear bits to update */
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val &= ~mask;
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val = (val & ~mask) | (value & mask);
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/* Update appropriate bits*/
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val |= (value & mask);
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/* Send new value on I2C Bus */
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return stpmic1_register_write(register_id, val);
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}
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@ -598,3 +731,32 @@ void stpmic1_bind_i2c(struct i2c_handle_s *i2c_handle, uint16_t i2c_addr)
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pmic_i2c_handle = i2c_handle;
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pmic_i2c_addr = i2c_addr;
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}
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void stpmic1_dump_regulators(void)
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{
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uint32_t i;
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for (i = 0U; i < MAX_REGUL; i++) {
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const char *name __unused = regulators_table[i].dt_node_name;
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VERBOSE("PMIC regul %s: %sable, %dmV",
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name,
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stpmic1_is_regulator_enabled(name) ? "en" : "dis",
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stpmic1_regulator_voltage_get(name));
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}
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}
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int stpmic1_get_version(unsigned long *version)
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{
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int rc;
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uint8_t read_val;
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rc = stpmic1_register_read(VERSION_STATUS_REG, &read_val);
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if (rc) {
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return -1;
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}
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*version = (unsigned long)read_val;
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return 0;
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}
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@ -84,18 +84,40 @@
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#define ITSOURCE2_REG 0xB1U
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#define ITSOURCE3_REG 0xB2U
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#define ITSOURCE4_REG 0xB3U
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/* Registers masks */
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#define LDO_VOLTAGE_MASK 0x7CU
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#define BUCK_VOLTAGE_MASK 0xFCU
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#define LDO_BUCK_VOLTAGE_SHIFT 2
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#define LDO_ENABLE_MASK 0x01U
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#define BUCK_ENABLE_MASK 0x01U
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#define BUCK_HPLP_ENABLE_MASK 0x02U
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#define LDO_HPLP_ENABLE_MASK 0x02U
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#define LDO_BUCK_ENABLE_MASK 0x01U
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#define LDO_BUCK_HPLP_ENABLE_MASK 0x02U
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#define LDO_BUCK_HPLP_SHIFT 1
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#define LDO_BUCK_RANK_MASK 0x01U
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#define LDO_BUCK_RESET_MASK 0x01U
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#define LDO_BUCK_PULL_DOWN_MASK 0x03U
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/* Pull down register */
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#define BUCK1_PULL_DOWN_SHIFT 0
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#define BUCK2_PULL_DOWN_SHIFT 2
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#define BUCK3_PULL_DOWN_SHIFT 4
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#define BUCK4_PULL_DOWN_SHIFT 6
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#define VREF_DDR_PULL_DOWN_SHIFT 4
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/* Buck Mask reset register */
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#define BUCK1_MASK_RESET 0
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#define BUCK2_MASK_RESET 1
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#define BUCK3_MASK_RESET 2
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#define BUCK4_MASK_RESET 3
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/* LDO Mask reset register */
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#define LDO1_MASK_RESET 0
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#define LDO2_MASK_RESET 1
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#define LDO3_MASK_RESET 2
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#define LDO4_MASK_RESET 3
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#define LDO5_MASK_RESET 4
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#define LDO6_MASK_RESET 5
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#define VREF_DDR_MASK_RESET 6
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/* Main PMIC Control Register (MAIN_CONTROL_REG) */
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#define ICC_EVENT_ENABLED BIT(4)
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#define PWRCTRL_POLARITY_HIGH BIT(3)
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@ -127,6 +149,7 @@
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#define SWIN_SWOUT_ENABLED BIT(2)
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#define USBSW_OTG_SWITCH_ENABLED BIT(1)
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int stpmic1_powerctrl_on(void);
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int stpmic1_switch_off(void);
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int stpmic1_register_read(uint8_t register_id, uint8_t *value);
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int stpmic1_register_write(uint8_t register_id, uint8_t value);
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@ -135,6 +158,12 @@ int stpmic1_regulator_enable(const char *name);
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int stpmic1_regulator_disable(const char *name);
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uint8_t stpmic1_is_regulator_enabled(const char *name);
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int stpmic1_regulator_voltage_set(const char *name, uint16_t millivolts);
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int stpmic1_regulator_voltage_get(const char *name);
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int stpmic1_regulator_pull_down_set(const char *name);
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int stpmic1_regulator_mask_reset_set(const char *name);
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void stpmic1_bind_i2c(struct i2c_handle_s *i2c_handle, uint16_t i2c_addr);
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int stpmic1_get_version(unsigned long *version);
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void stpmic1_dump_regulators(void);
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#endif /* STPMIC1_H */
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