#include "stm32mp157c.dtsi"
#include "stm32mp157-pinctrl.dtsi"
#include <dt-bindings/gpio/gpio.h>
-#include <dt-bindings/mfd/st,stpmu1.h>
+#include <dt-bindings/mfd/st,stpmic1.h>
/ {
model = "STMicroelectronics STM32MP157C eval daughter";
#include <asm/io.h>
#include <asm/arch/ddr.h>
#include <power/pmic.h>
-#include <power/stpmu1.h>
+#include <power/stpmic1.h>
#ifdef CONFIG_DEBUG_UART_BOARD_INIT
void board_debug_uart_init(void)
#include <asm/io.h>
#include <post.h>
#include <power/pmic.h>
-#include <power/stpmu1.h>
+#include <power/stpmic1.h>
#include <asm/arch/ddr.h>
void spl_board_init(void)
obj-$(CONFIG_$(SPL_)PMIC_PALMAS) += palmas.o
obj-$(CONFIG_$(SPL_)PMIC_LP873X) += lp873x.o
obj-$(CONFIG_$(SPL_)PMIC_LP87565) += lp87565.o
-obj-$(CONFIG_PMIC_STPMU1) += stpmu1.o
+obj-$(CONFIG_PMIC_STPMU1) += stpmic1.o
obj-$(CONFIG_POWER_LTC3676) += pmic_ltc3676.o
obj-$(CONFIG_POWER_MAX77696) += pmic_max77696.o
--- /dev/null
+// SPDX-License-Identifier: GPL-2.0+ OR BSD-3-Clause
+/*
+ * Copyright (C) 2018, STMicroelectronics - All Rights Reserved
+ */
+
+#include <common.h>
+#include <dm.h>
+#include <errno.h>
+#include <i2c.h>
+#include <power/pmic.h>
+#include <power/stpmic1.h>
+
+#define STMPU1_NUM_OF_REGS 0x100
+
+#ifndef CONFIG_SPL_BUILD
+static const struct pmic_child_info stpmu1_children_info[] = {
+ { .prefix = "ldo", .driver = "stpmu1_ldo" },
+ { .prefix = "buck", .driver = "stpmu1_buck" },
+ { .prefix = "vref_ddr", .driver = "stpmu1_vref_ddr" },
+ { .prefix = "pwr_sw", .driver = "stpmu1_pwr_sw" },
+ { .prefix = "boost", .driver = "stpmu1_boost" },
+ { },
+};
+#endif /* CONFIG_SPL_BUILD */
+
+static int stpmu1_reg_count(struct udevice *dev)
+{
+ return STMPU1_NUM_OF_REGS;
+}
+
+static int stpmu1_write(struct udevice *dev, uint reg, const uint8_t *buff,
+ int len)
+{
+ int ret;
+
+ ret = dm_i2c_write(dev, reg, buff, len);
+ if (ret)
+ dev_err(dev, "%s: failed to write register %#x :%d",
+ __func__, reg, ret);
+
+ return ret;
+}
+
+static int stpmu1_read(struct udevice *dev, uint reg, uint8_t *buff, int len)
+{
+ int ret;
+
+ ret = dm_i2c_read(dev, reg, buff, len);
+ if (ret)
+ dev_err(dev, "%s: failed to read register %#x : %d",
+ __func__, reg, ret);
+
+ return ret;
+}
+
+static int stpmu1_bind(struct udevice *dev)
+{
+#ifndef CONFIG_SPL_BUILD
+ ofnode regulators_node;
+ int children;
+
+ regulators_node = dev_read_subnode(dev, "regulators");
+ if (!ofnode_valid(regulators_node)) {
+ dev_dbg(dev, "regulators subnode not found!\n");
+ return -ENXIO;
+ }
+ dev_dbg(dev, "found regulators subnode\n");
+
+ children = pmic_bind_children(dev, regulators_node,
+ stpmu1_children_info);
+ if (!children)
+ dev_dbg(dev, "no child found\n");
+#endif /* CONFIG_SPL_BUILD */
+
+ return 0;
+}
+
+static struct dm_pmic_ops stpmu1_ops = {
+ .reg_count = stpmu1_reg_count,
+ .read = stpmu1_read,
+ .write = stpmu1_write,
+};
+
+static const struct udevice_id stpmu1_ids[] = {
+ { .compatible = "st,stpmu1" },
+ { }
+};
+
+U_BOOT_DRIVER(pmic_stpmu1) = {
+ .name = "stpmu1_pmic",
+ .id = UCLASS_PMIC,
+ .of_match = stpmu1_ids,
+ .bind = stpmu1_bind,
+ .ops = &stpmu1_ops,
+};
+++ /dev/null
-// SPDX-License-Identifier: GPL-2.0+ OR BSD-3-Clause
-/*
- * Copyright (C) 2018, STMicroelectronics - All Rights Reserved
- */
-
-#include <common.h>
-#include <dm.h>
-#include <errno.h>
-#include <i2c.h>
-#include <power/pmic.h>
-#include <power/stpmu1.h>
-
-#define STMPU1_NUM_OF_REGS 0x100
-
-#ifndef CONFIG_SPL_BUILD
-static const struct pmic_child_info stpmu1_children_info[] = {
- { .prefix = "ldo", .driver = "stpmu1_ldo" },
- { .prefix = "buck", .driver = "stpmu1_buck" },
- { .prefix = "vref_ddr", .driver = "stpmu1_vref_ddr" },
- { .prefix = "pwr_sw", .driver = "stpmu1_pwr_sw" },
- { .prefix = "boost", .driver = "stpmu1_boost" },
- { },
-};
-#endif /* CONFIG_SPL_BUILD */
-
-static int stpmu1_reg_count(struct udevice *dev)
-{
- return STMPU1_NUM_OF_REGS;
-}
-
-static int stpmu1_write(struct udevice *dev, uint reg, const uint8_t *buff,
- int len)
-{
- int ret;
-
- ret = dm_i2c_write(dev, reg, buff, len);
- if (ret)
- dev_err(dev, "%s: failed to write register %#x :%d",
- __func__, reg, ret);
-
- return ret;
-}
-
-static int stpmu1_read(struct udevice *dev, uint reg, uint8_t *buff, int len)
-{
- int ret;
-
- ret = dm_i2c_read(dev, reg, buff, len);
- if (ret)
- dev_err(dev, "%s: failed to read register %#x : %d",
- __func__, reg, ret);
-
- return ret;
-}
-
-static int stpmu1_bind(struct udevice *dev)
-{
-#ifndef CONFIG_SPL_BUILD
- ofnode regulators_node;
- int children;
-
- regulators_node = dev_read_subnode(dev, "regulators");
- if (!ofnode_valid(regulators_node)) {
- dev_dbg(dev, "regulators subnode not found!\n");
- return -ENXIO;
- }
- dev_dbg(dev, "found regulators subnode\n");
-
- children = pmic_bind_children(dev, regulators_node,
- stpmu1_children_info);
- if (!children)
- dev_dbg(dev, "no child found\n");
-#endif /* CONFIG_SPL_BUILD */
-
- return 0;
-}
-
-static struct dm_pmic_ops stpmu1_ops = {
- .reg_count = stpmu1_reg_count,
- .read = stpmu1_read,
- .write = stpmu1_write,
-};
-
-static const struct udevice_id stpmu1_ids[] = {
- { .compatible = "st,stpmu1" },
- { }
-};
-
-U_BOOT_DRIVER(pmic_stpmu1) = {
- .name = "stpmu1_pmic",
- .id = UCLASS_PMIC,
- .of_match = stpmu1_ids,
- .bind = stpmu1_bind,
- .ops = &stpmu1_ops,
-};
obj-$(CONFIG_$(SPL_)DM_REGULATOR_LP87565) += lp87565_regulator.o
obj-$(CONFIG_$(SPL_)DM_REGULATOR_STM32_VREFBUF) += stm32-vrefbuf.o
obj-$(CONFIG_DM_REGULATOR_TPS65910) += tps65910_regulator.o
-obj-$(CONFIG_$(SPL_)DM_REGULATOR_STPMU1) += stpmu1.o
+obj-$(CONFIG_$(SPL_)DM_REGULATOR_STPMU1) += stpmic1.o
--- /dev/null
+// SPDX-License-Identifier: GPL-2.0+ OR BSD-3-Clause
+/*
+ * Copyright (C) 2018, STMicroelectronics - All Rights Reserved
+ * Author: Christophe Kerello <christophe.kerello@st.com>
+ */
+
+#include <common.h>
+#include <dm.h>
+#include <errno.h>
+#include <power/pmic.h>
+#include <power/regulator.h>
+#include <power/stpmic1.h>
+
+struct stpmu1_range {
+ int min_uv;
+ int min_sel;
+ int max_sel;
+ int step;
+};
+
+struct stpmu1_output_range {
+ const struct stpmu1_range *ranges;
+ int nbranges;
+};
+
+#define STPMU1_MODE(_id, _val, _name) { \
+ .id = _id, \
+ .register_value = _val, \
+ .name = _name, \
+}
+
+#define STPMU1_RANGE(_min_uv, _min_sel, _max_sel, _step) { \
+ .min_uv = _min_uv, \
+ .min_sel = _min_sel, \
+ .max_sel = _max_sel, \
+ .step = _step, \
+}
+
+#define STPMU1_OUTPUT_RANGE(_ranges, _nbranges) { \
+ .ranges = _ranges, \
+ .nbranges = _nbranges, \
+}
+
+static int stpmu1_output_find_uv(int sel,
+ const struct stpmu1_output_range *output_range)
+{
+ const struct stpmu1_range *range;
+ int i;
+
+ for (i = 0, range = output_range->ranges;
+ i < output_range->nbranges; i++, range++) {
+ if (sel >= range->min_sel && sel <= range->max_sel)
+ return range->min_uv +
+ (sel - range->min_sel) * range->step;
+ }
+
+ return -EINVAL;
+}
+
+static int stpmu1_output_find_sel(int uv,
+ const struct stpmu1_output_range *output_range)
+{
+ const struct stpmu1_range *range;
+ int i;
+
+ for (i = 0, range = output_range->ranges;
+ i < output_range->nbranges; i++, range++) {
+ if (uv == range->min_uv && !range->step)
+ return range->min_sel;
+
+ if (uv >= range->min_uv &&
+ uv <= range->min_uv +
+ (range->max_sel - range->min_sel) * range->step)
+ return range->min_sel +
+ (uv - range->min_uv) / range->step;
+ }
+
+ return -EINVAL;
+}
+
+/*
+ * BUCK regulators
+ */
+
+static const struct stpmu1_range buck1_ranges[] = {
+ STPMU1_RANGE(725000, 0, 4, 0),
+ STPMU1_RANGE(725000, 5, 36, 25000),
+ STPMU1_RANGE(1500000, 37, 63, 0),
+};
+
+static const struct stpmu1_range buck2_ranges[] = {
+ STPMU1_RANGE(1000000, 0, 17, 0),
+ STPMU1_RANGE(1050000, 18, 19, 0),
+ STPMU1_RANGE(1100000, 20, 21, 0),
+ STPMU1_RANGE(1150000, 22, 23, 0),
+ STPMU1_RANGE(1200000, 24, 25, 0),
+ STPMU1_RANGE(1250000, 26, 27, 0),
+ STPMU1_RANGE(1300000, 28, 29, 0),
+ STPMU1_RANGE(1350000, 30, 31, 0),
+ STPMU1_RANGE(1400000, 32, 33, 0),
+ STPMU1_RANGE(1450000, 34, 35, 0),
+ STPMU1_RANGE(1500000, 36, 63, 0),
+};
+
+static const struct stpmu1_range buck3_ranges[] = {
+ STPMU1_RANGE(1000000, 0, 19, 0),
+ STPMU1_RANGE(1100000, 20, 23, 0),
+ STPMU1_RANGE(1200000, 24, 27, 0),
+ STPMU1_RANGE(1300000, 28, 31, 0),
+ STPMU1_RANGE(1400000, 32, 35, 0),
+ STPMU1_RANGE(1500000, 36, 55, 100000),
+ STPMU1_RANGE(3400000, 56, 63, 0),
+};
+
+static const struct stpmu1_range buck4_ranges[] = {
+ STPMU1_RANGE(600000, 0, 27, 25000),
+ STPMU1_RANGE(1300000, 28, 29, 0),
+ STPMU1_RANGE(1350000, 30, 31, 0),
+ STPMU1_RANGE(1400000, 32, 33, 0),
+ STPMU1_RANGE(1450000, 34, 35, 0),
+ STPMU1_RANGE(1500000, 36, 60, 100000),
+ STPMU1_RANGE(3900000, 61, 63, 0),
+};
+
+/* BUCK: 1,2,3,4 - voltage ranges */
+static const struct stpmu1_output_range buck_voltage_range[] = {
+ STPMU1_OUTPUT_RANGE(buck1_ranges, ARRAY_SIZE(buck1_ranges)),
+ STPMU1_OUTPUT_RANGE(buck2_ranges, ARRAY_SIZE(buck2_ranges)),
+ STPMU1_OUTPUT_RANGE(buck3_ranges, ARRAY_SIZE(buck3_ranges)),
+ STPMU1_OUTPUT_RANGE(buck4_ranges, ARRAY_SIZE(buck4_ranges)),
+};
+
+/* BUCK modes */
+static const struct dm_regulator_mode buck_modes[] = {
+ STPMU1_MODE(STPMU1_BUCK_MODE_HP, STPMU1_BUCK_MODE_HP, "HP"),
+ STPMU1_MODE(STPMU1_BUCK_MODE_LP, STPMU1_BUCK_MODE_LP, "LP"),
+};
+
+static int stpmu1_buck_get_uv(struct udevice *dev, int buck)
+{
+ int sel;
+
+ sel = pmic_reg_read(dev, STPMU1_BUCKX_CTRL_REG(buck));
+ if (sel < 0)
+ return sel;
+
+ sel &= STPMU1_BUCK_OUTPUT_MASK;
+ sel >>= STPMU1_BUCK_OUTPUT_SHIFT;
+
+ return stpmu1_output_find_uv(sel, &buck_voltage_range[buck]);
+}
+
+static int stpmu1_buck_get_value(struct udevice *dev)
+{
+ return stpmu1_buck_get_uv(dev->parent, dev->driver_data - 1);
+}
+
+static int stpmu1_buck_set_value(struct udevice *dev, int uv)
+{
+ int sel, buck = dev->driver_data - 1;
+
+ sel = stpmu1_output_find_sel(uv, &buck_voltage_range[buck]);
+ if (sel < 0)
+ return sel;
+
+ return pmic_clrsetbits(dev->parent,
+ STPMU1_BUCKX_CTRL_REG(buck),
+ STPMU1_BUCK_OUTPUT_MASK,
+ sel << STPMU1_BUCK_OUTPUT_SHIFT);
+}
+
+static int stpmu1_buck_get_enable(struct udevice *dev)
+{
+ int ret;
+
+ ret = pmic_reg_read(dev->parent,
+ STPMU1_BUCKX_CTRL_REG(dev->driver_data - 1));
+ if (ret < 0)
+ return false;
+
+ return ret & STPMU1_BUCK_EN ? true : false;
+}
+
+static int stpmu1_buck_set_enable(struct udevice *dev, bool enable)
+{
+ struct dm_regulator_uclass_platdata *uc_pdata;
+ int delay = enable ? STPMU1_DEFAULT_START_UP_DELAY_MS :
+ STPMU1_DEFAULT_STOP_DELAY_MS;
+ int ret, uv;
+
+ /* if regulator is already in the wanted state, nothing to do */
+ if (stpmu1_buck_get_enable(dev) == enable)
+ return 0;
+
+ if (enable) {
+ uc_pdata = dev_get_uclass_platdata(dev);
+ uv = stpmu1_buck_get_value(dev);
+ if ((uv < uc_pdata->min_uV) || (uv > uc_pdata->max_uV))
+ stpmu1_buck_set_value(dev, uc_pdata->min_uV);
+ }
+
+ ret = pmic_clrsetbits(dev->parent,
+ STPMU1_BUCKX_CTRL_REG(dev->driver_data - 1),
+ STPMU1_BUCK_EN, enable ? STPMU1_BUCK_EN : 0);
+ mdelay(delay);
+
+ return ret;
+}
+
+static int stpmu1_buck_get_mode(struct udevice *dev)
+{
+ int ret;
+
+ ret = pmic_reg_read(dev->parent,
+ STPMU1_BUCKX_CTRL_REG(dev->driver_data - 1));
+ if (ret < 0)
+ return ret;
+
+ return ret & STPMU1_BUCK_MODE ? STPMU1_BUCK_MODE_LP :
+ STPMU1_BUCK_MODE_HP;
+}
+
+static int stpmu1_buck_set_mode(struct udevice *dev, int mode)
+{
+ return pmic_clrsetbits(dev->parent,
+ STPMU1_BUCKX_CTRL_REG(dev->driver_data - 1),
+ STPMU1_BUCK_MODE,
+ mode ? STPMU1_BUCK_MODE : 0);
+}
+
+static int stpmu1_buck_probe(struct udevice *dev)
+{
+ struct dm_regulator_uclass_platdata *uc_pdata;
+
+ if (!dev->driver_data || dev->driver_data > STPMU1_MAX_BUCK)
+ return -EINVAL;
+
+ uc_pdata = dev_get_uclass_platdata(dev);
+
+ uc_pdata->type = REGULATOR_TYPE_BUCK;
+ uc_pdata->mode = (struct dm_regulator_mode *)buck_modes;
+ uc_pdata->mode_count = ARRAY_SIZE(buck_modes);
+
+ return 0;
+}
+
+static const struct dm_regulator_ops stpmu1_buck_ops = {
+ .get_value = stpmu1_buck_get_value,
+ .set_value = stpmu1_buck_set_value,
+ .get_enable = stpmu1_buck_get_enable,
+ .set_enable = stpmu1_buck_set_enable,
+ .get_mode = stpmu1_buck_get_mode,
+ .set_mode = stpmu1_buck_set_mode,
+};
+
+U_BOOT_DRIVER(stpmu1_buck) = {
+ .name = "stpmu1_buck",
+ .id = UCLASS_REGULATOR,
+ .ops = &stpmu1_buck_ops,
+ .probe = stpmu1_buck_probe,
+};
+
+/*
+ * LDO regulators
+ */
+
+static const struct stpmu1_range ldo12_ranges[] = {
+ STPMU1_RANGE(1700000, 0, 7, 0),
+ STPMU1_RANGE(1700000, 8, 24, 100000),
+ STPMU1_RANGE(3300000, 25, 31, 0),
+};
+
+static const struct stpmu1_range ldo3_ranges[] = {
+ STPMU1_RANGE(1700000, 0, 7, 0),
+ STPMU1_RANGE(1700000, 8, 24, 100000),
+ STPMU1_RANGE(3300000, 25, 30, 0),
+ /* Sel 31 is special case when LDO3 is in mode sync_source (BUCK2/2) */
+};
+
+static const struct stpmu1_range ldo5_ranges[] = {
+ STPMU1_RANGE(1700000, 0, 7, 0),
+ STPMU1_RANGE(1700000, 8, 30, 100000),
+ STPMU1_RANGE(3900000, 31, 31, 0),
+};
+
+static const struct stpmu1_range ldo6_ranges[] = {
+ STPMU1_RANGE(900000, 0, 24, 100000),
+ STPMU1_RANGE(3300000, 25, 31, 0),
+};
+
+/* LDO: 1,2,3,4,5,6 - voltage ranges */
+static const struct stpmu1_output_range ldo_voltage_range[] = {
+ STPMU1_OUTPUT_RANGE(ldo12_ranges, ARRAY_SIZE(ldo12_ranges)),
+ STPMU1_OUTPUT_RANGE(ldo12_ranges, ARRAY_SIZE(ldo12_ranges)),
+ STPMU1_OUTPUT_RANGE(ldo3_ranges, ARRAY_SIZE(ldo3_ranges)),
+ STPMU1_OUTPUT_RANGE(NULL, 0),
+ STPMU1_OUTPUT_RANGE(ldo5_ranges, ARRAY_SIZE(ldo5_ranges)),
+ STPMU1_OUTPUT_RANGE(ldo6_ranges, ARRAY_SIZE(ldo6_ranges)),
+};
+
+/* LDO modes */
+static const struct dm_regulator_mode ldo_modes[] = {
+ STPMU1_MODE(STPMU1_LDO_MODE_NORMAL,
+ STPMU1_LDO_MODE_NORMAL, "NORMAL"),
+ STPMU1_MODE(STPMU1_LDO_MODE_BYPASS,
+ STPMU1_LDO_MODE_BYPASS, "BYPASS"),
+ STPMU1_MODE(STPMU1_LDO_MODE_SINK_SOURCE,
+ STPMU1_LDO_MODE_SINK_SOURCE, "SINK SOURCE"),
+};
+
+static int stpmu1_ldo_get_value(struct udevice *dev)
+{
+ int sel, ldo = dev->driver_data - 1;
+
+ sel = pmic_reg_read(dev->parent, STPMU1_LDOX_CTRL_REG(ldo));
+ if (sel < 0)
+ return sel;
+
+ /* ldo4 => 3,3V */
+ if (ldo == STPMU1_LDO4)
+ return STPMU1_LDO4_UV;
+
+ sel &= STPMU1_LDO12356_OUTPUT_MASK;
+ sel >>= STPMU1_LDO12356_OUTPUT_SHIFT;
+
+ /* ldo3, sel = 31 => BUCK2/2 */
+ if (ldo == STPMU1_LDO3 && sel == STPMU1_LDO3_DDR_SEL)
+ return stpmu1_buck_get_uv(dev->parent, STPMU1_BUCK2) / 2;
+
+ return stpmu1_output_find_uv(sel, &ldo_voltage_range[ldo]);
+}
+
+static int stpmu1_ldo_set_value(struct udevice *dev, int uv)
+{
+ int sel, ldo = dev->driver_data - 1;
+
+ /* ldo4 => not possible */
+ if (ldo == STPMU1_LDO4)
+ return -EINVAL;
+
+ sel = stpmu1_output_find_sel(uv, &ldo_voltage_range[ldo]);
+ if (sel < 0)
+ return sel;
+
+ return pmic_clrsetbits(dev->parent,
+ STPMU1_LDOX_CTRL_REG(ldo),
+ STPMU1_LDO12356_OUTPUT_MASK,
+ sel << STPMU1_LDO12356_OUTPUT_SHIFT);
+}
+
+static int stpmu1_ldo_get_enable(struct udevice *dev)
+{
+ int ret;
+
+ ret = pmic_reg_read(dev->parent,
+ STPMU1_LDOX_CTRL_REG(dev->driver_data - 1));
+ if (ret < 0)
+ return false;
+
+ return ret & STPMU1_LDO_EN ? true : false;
+}
+
+static int stpmu1_ldo_set_enable(struct udevice *dev, bool enable)
+{
+ struct dm_regulator_uclass_platdata *uc_pdata;
+ int delay = enable ? STPMU1_DEFAULT_START_UP_DELAY_MS :
+ STPMU1_DEFAULT_STOP_DELAY_MS;
+ int ret, uv;
+
+ /* if regulator is already in the wanted state, nothing to do */
+ if (stpmu1_ldo_get_enable(dev) == enable)
+ return 0;
+
+ if (enable) {
+ uc_pdata = dev_get_uclass_platdata(dev);
+ uv = stpmu1_ldo_get_value(dev);
+ if ((uv < uc_pdata->min_uV) || (uv > uc_pdata->max_uV))
+ stpmu1_ldo_set_value(dev, uc_pdata->min_uV);
+ }
+
+ ret = pmic_clrsetbits(dev->parent,
+ STPMU1_LDOX_CTRL_REG(dev->driver_data - 1),
+ STPMU1_LDO_EN, enable ? STPMU1_LDO_EN : 0);
+ mdelay(delay);
+
+ return ret;
+}
+
+static int stpmu1_ldo_get_mode(struct udevice *dev)
+{
+ int ret, ldo = dev->driver_data - 1;
+
+ if (ldo != STPMU1_LDO3)
+ return -EINVAL;
+
+ ret = pmic_reg_read(dev->parent, STPMU1_LDOX_CTRL_REG(ldo));
+ if (ret < 0)
+ return ret;
+
+ if (ret & STPMU1_LDO3_MODE)
+ return STPMU1_LDO_MODE_BYPASS;
+
+ ret &= STPMU1_LDO12356_OUTPUT_MASK;
+ ret >>= STPMU1_LDO12356_OUTPUT_SHIFT;
+
+ return ret == STPMU1_LDO3_DDR_SEL ? STPMU1_LDO_MODE_SINK_SOURCE :
+ STPMU1_LDO_MODE_NORMAL;
+}
+
+static int stpmu1_ldo_set_mode(struct udevice *dev, int mode)
+{
+ int ret, ldo = dev->driver_data - 1;
+
+ if (ldo != STPMU1_LDO3)
+ return -EINVAL;
+
+ ret = pmic_reg_read(dev->parent, STPMU1_LDOX_CTRL_REG(ldo));
+ if (ret < 0)
+ return ret;
+
+ switch (mode) {
+ case STPMU1_LDO_MODE_SINK_SOURCE:
+ ret &= ~STPMU1_LDO12356_OUTPUT_MASK;
+ ret |= STPMU1_LDO3_DDR_SEL << STPMU1_LDO12356_OUTPUT_SHIFT;
+ case STPMU1_LDO_MODE_NORMAL:
+ ret &= ~STPMU1_LDO3_MODE;
+ break;
+ case STPMU1_LDO_MODE_BYPASS:
+ ret |= STPMU1_LDO3_MODE;
+ break;
+ }
+
+ return pmic_reg_write(dev->parent, STPMU1_LDOX_CTRL_REG(ldo), ret);
+}
+
+static int stpmu1_ldo_probe(struct udevice *dev)
+{
+ struct dm_regulator_uclass_platdata *uc_pdata;
+
+ if (!dev->driver_data || dev->driver_data > STPMU1_MAX_LDO)
+ return -EINVAL;
+
+ uc_pdata = dev_get_uclass_platdata(dev);
+
+ uc_pdata->type = REGULATOR_TYPE_LDO;
+ if (dev->driver_data - 1 == STPMU1_LDO3) {
+ uc_pdata->mode = (struct dm_regulator_mode *)ldo_modes;
+ uc_pdata->mode_count = ARRAY_SIZE(ldo_modes);
+ } else {
+ uc_pdata->mode_count = 0;
+ }
+
+ return 0;
+}
+
+static const struct dm_regulator_ops stpmu1_ldo_ops = {
+ .get_value = stpmu1_ldo_get_value,
+ .set_value = stpmu1_ldo_set_value,
+ .get_enable = stpmu1_ldo_get_enable,
+ .set_enable = stpmu1_ldo_set_enable,
+ .get_mode = stpmu1_ldo_get_mode,
+ .set_mode = stpmu1_ldo_set_mode,
+};
+
+U_BOOT_DRIVER(stpmu1_ldo) = {
+ .name = "stpmu1_ldo",
+ .id = UCLASS_REGULATOR,
+ .ops = &stpmu1_ldo_ops,
+ .probe = stpmu1_ldo_probe,
+};
+
+/*
+ * VREF DDR regulator
+ */
+
+static int stpmu1_vref_ddr_get_value(struct udevice *dev)
+{
+ /* BUCK2/2 */
+ return stpmu1_buck_get_uv(dev->parent, STPMU1_BUCK2) / 2;
+}
+
+static int stpmu1_vref_ddr_get_enable(struct udevice *dev)
+{
+ int ret;
+
+ ret = pmic_reg_read(dev->parent, STPMU1_VREF_CTRL_REG);
+ if (ret < 0)
+ return false;
+
+ return ret & STPMU1_VREF_EN ? true : false;
+}
+
+static int stpmu1_vref_ddr_set_enable(struct udevice *dev, bool enable)
+{
+ int delay = enable ? STPMU1_DEFAULT_START_UP_DELAY_MS :
+ STPMU1_DEFAULT_STOP_DELAY_MS;
+ int ret;
+
+ /* if regulator is already in the wanted state, nothing to do */
+ if (stpmu1_vref_ddr_get_enable(dev) == enable)
+ return 0;
+
+ ret = pmic_clrsetbits(dev->parent, STPMU1_VREF_CTRL_REG,
+ STPMU1_VREF_EN, enable ? STPMU1_VREF_EN : 0);
+ mdelay(delay);
+
+ return ret;
+}
+
+static int stpmu1_vref_ddr_probe(struct udevice *dev)
+{
+ struct dm_regulator_uclass_platdata *uc_pdata;
+
+ uc_pdata = dev_get_uclass_platdata(dev);
+
+ uc_pdata->type = REGULATOR_TYPE_FIXED;
+ uc_pdata->mode_count = 0;
+
+ return 0;
+}
+
+static const struct dm_regulator_ops stpmu1_vref_ddr_ops = {
+ .get_value = stpmu1_vref_ddr_get_value,
+ .get_enable = stpmu1_vref_ddr_get_enable,
+ .set_enable = stpmu1_vref_ddr_set_enable,
+};
+
+U_BOOT_DRIVER(stpmu1_vref_ddr) = {
+ .name = "stpmu1_vref_ddr",
+ .id = UCLASS_REGULATOR,
+ .ops = &stpmu1_vref_ddr_ops,
+ .probe = stpmu1_vref_ddr_probe,
+};
+
+/*
+ * BOOST regulator
+ */
+
+static int stpmu1_boost_get_enable(struct udevice *dev)
+{
+ int ret;
+
+ ret = pmic_reg_read(dev->parent, STPMU1_USB_CTRL_REG);
+ if (ret < 0)
+ return false;
+
+ return ret & STPMU1_USB_BOOST_EN ? true : false;
+}
+
+static int stpmu1_boost_set_enable(struct udevice *dev, bool enable)
+{
+ int ret;
+
+ ret = pmic_reg_read(dev->parent, STPMU1_USB_CTRL_REG);
+ if (ret < 0)
+ return ret;
+
+ if (!enable && ret & STPMU1_USB_PWR_SW_EN)
+ return -EINVAL;
+
+ /* if regulator is already in the wanted state, nothing to do */
+ if (!!(ret & STPMU1_USB_BOOST_EN) == enable)
+ return 0;
+
+ ret = pmic_clrsetbits(dev->parent, STPMU1_USB_CTRL_REG,
+ STPMU1_USB_BOOST_EN,
+ enable ? STPMU1_USB_BOOST_EN : 0);
+ if (enable)
+ mdelay(STPMU1_USB_BOOST_START_UP_DELAY_MS);
+
+ return ret;
+}
+
+static int stpmu1_boost_probe(struct udevice *dev)
+{
+ struct dm_regulator_uclass_platdata *uc_pdata;
+
+ uc_pdata = dev_get_uclass_platdata(dev);
+
+ uc_pdata->type = REGULATOR_TYPE_FIXED;
+ uc_pdata->mode_count = 0;
+
+ return 0;
+}
+
+static const struct dm_regulator_ops stpmu1_boost_ops = {
+ .get_enable = stpmu1_boost_get_enable,
+ .set_enable = stpmu1_boost_set_enable,
+};
+
+U_BOOT_DRIVER(stpmu1_boost) = {
+ .name = "stpmu1_boost",
+ .id = UCLASS_REGULATOR,
+ .ops = &stpmu1_boost_ops,
+ .probe = stpmu1_boost_probe,
+};
+
+/*
+ * USB power switch
+ */
+
+static int stpmu1_pwr_sw_get_enable(struct udevice *dev)
+{
+ uint mask = 1 << dev->driver_data;
+ int ret;
+
+ ret = pmic_reg_read(dev->parent, STPMU1_USB_CTRL_REG);
+ if (ret < 0)
+ return false;
+
+ return ret & mask ? true : false;
+}
+
+static int stpmu1_pwr_sw_set_enable(struct udevice *dev, bool enable)
+{
+ uint mask = 1 << dev->driver_data;
+ int delay = enable ? STPMU1_DEFAULT_START_UP_DELAY_MS :
+ STPMU1_DEFAULT_STOP_DELAY_MS;
+ int ret;
+
+ ret = pmic_reg_read(dev->parent, STPMU1_USB_CTRL_REG);
+ if (ret < 0)
+ return ret;
+
+ /* if regulator is already in the wanted state, nothing to do */
+ if (!!(ret & mask) == enable)
+ return 0;
+
+ /* Boost management */
+ if (enable && !(ret & STPMU1_USB_BOOST_EN)) {
+ pmic_clrsetbits(dev->parent, STPMU1_USB_CTRL_REG,
+ STPMU1_USB_BOOST_EN, STPMU1_USB_BOOST_EN);
+ mdelay(STPMU1_USB_BOOST_START_UP_DELAY_MS);
+ } else if (!enable && ret & STPMU1_USB_BOOST_EN &&
+ (ret & STPMU1_USB_PWR_SW_EN) != STPMU1_USB_PWR_SW_EN) {
+ pmic_clrsetbits(dev->parent, STPMU1_USB_CTRL_REG,
+ STPMU1_USB_BOOST_EN, 0);
+ }
+
+ ret = pmic_clrsetbits(dev->parent, STPMU1_USB_CTRL_REG,
+ mask, enable ? mask : 0);
+ mdelay(delay);
+
+ return ret;
+}
+
+static int stpmu1_pwr_sw_probe(struct udevice *dev)
+{
+ struct dm_regulator_uclass_platdata *uc_pdata;
+
+ if (!dev->driver_data || dev->driver_data > STPMU1_MAX_PWR_SW)
+ return -EINVAL;
+
+ uc_pdata = dev_get_uclass_platdata(dev);
+
+ uc_pdata->type = REGULATOR_TYPE_FIXED;
+ uc_pdata->mode_count = 0;
+
+ return 0;
+}
+
+static const struct dm_regulator_ops stpmu1_pwr_sw_ops = {
+ .get_enable = stpmu1_pwr_sw_get_enable,
+ .set_enable = stpmu1_pwr_sw_set_enable,
+};
+
+U_BOOT_DRIVER(stpmu1_pwr_sw) = {
+ .name = "stpmu1_pwr_sw",
+ .id = UCLASS_REGULATOR,
+ .ops = &stpmu1_pwr_sw_ops,
+ .probe = stpmu1_pwr_sw_probe,
+};
+++ /dev/null
-// SPDX-License-Identifier: GPL-2.0+ OR BSD-3-Clause
-/*
- * Copyright (C) 2018, STMicroelectronics - All Rights Reserved
- * Author: Christophe Kerello <christophe.kerello@st.com>
- */
-
-#include <common.h>
-#include <dm.h>
-#include <errno.h>
-#include <power/pmic.h>
-#include <power/regulator.h>
-#include <power/stpmu1.h>
-
-struct stpmu1_range {
- int min_uv;
- int min_sel;
- int max_sel;
- int step;
-};
-
-struct stpmu1_output_range {
- const struct stpmu1_range *ranges;
- int nbranges;
-};
-
-#define STPMU1_MODE(_id, _val, _name) { \
- .id = _id, \
- .register_value = _val, \
- .name = _name, \
-}
-
-#define STPMU1_RANGE(_min_uv, _min_sel, _max_sel, _step) { \
- .min_uv = _min_uv, \
- .min_sel = _min_sel, \
- .max_sel = _max_sel, \
- .step = _step, \
-}
-
-#define STPMU1_OUTPUT_RANGE(_ranges, _nbranges) { \
- .ranges = _ranges, \
- .nbranges = _nbranges, \
-}
-
-static int stpmu1_output_find_uv(int sel,
- const struct stpmu1_output_range *output_range)
-{
- const struct stpmu1_range *range;
- int i;
-
- for (i = 0, range = output_range->ranges;
- i < output_range->nbranges; i++, range++) {
- if (sel >= range->min_sel && sel <= range->max_sel)
- return range->min_uv +
- (sel - range->min_sel) * range->step;
- }
-
- return -EINVAL;
-}
-
-static int stpmu1_output_find_sel(int uv,
- const struct stpmu1_output_range *output_range)
-{
- const struct stpmu1_range *range;
- int i;
-
- for (i = 0, range = output_range->ranges;
- i < output_range->nbranges; i++, range++) {
- if (uv == range->min_uv && !range->step)
- return range->min_sel;
-
- if (uv >= range->min_uv &&
- uv <= range->min_uv +
- (range->max_sel - range->min_sel) * range->step)
- return range->min_sel +
- (uv - range->min_uv) / range->step;
- }
-
- return -EINVAL;
-}
-
-/*
- * BUCK regulators
- */
-
-static const struct stpmu1_range buck1_ranges[] = {
- STPMU1_RANGE(725000, 0, 4, 0),
- STPMU1_RANGE(725000, 5, 36, 25000),
- STPMU1_RANGE(1500000, 37, 63, 0),
-};
-
-static const struct stpmu1_range buck2_ranges[] = {
- STPMU1_RANGE(1000000, 0, 17, 0),
- STPMU1_RANGE(1050000, 18, 19, 0),
- STPMU1_RANGE(1100000, 20, 21, 0),
- STPMU1_RANGE(1150000, 22, 23, 0),
- STPMU1_RANGE(1200000, 24, 25, 0),
- STPMU1_RANGE(1250000, 26, 27, 0),
- STPMU1_RANGE(1300000, 28, 29, 0),
- STPMU1_RANGE(1350000, 30, 31, 0),
- STPMU1_RANGE(1400000, 32, 33, 0),
- STPMU1_RANGE(1450000, 34, 35, 0),
- STPMU1_RANGE(1500000, 36, 63, 0),
-};
-
-static const struct stpmu1_range buck3_ranges[] = {
- STPMU1_RANGE(1000000, 0, 19, 0),
- STPMU1_RANGE(1100000, 20, 23, 0),
- STPMU1_RANGE(1200000, 24, 27, 0),
- STPMU1_RANGE(1300000, 28, 31, 0),
- STPMU1_RANGE(1400000, 32, 35, 0),
- STPMU1_RANGE(1500000, 36, 55, 100000),
- STPMU1_RANGE(3400000, 56, 63, 0),
-};
-
-static const struct stpmu1_range buck4_ranges[] = {
- STPMU1_RANGE(600000, 0, 27, 25000),
- STPMU1_RANGE(1300000, 28, 29, 0),
- STPMU1_RANGE(1350000, 30, 31, 0),
- STPMU1_RANGE(1400000, 32, 33, 0),
- STPMU1_RANGE(1450000, 34, 35, 0),
- STPMU1_RANGE(1500000, 36, 60, 100000),
- STPMU1_RANGE(3900000, 61, 63, 0),
-};
-
-/* BUCK: 1,2,3,4 - voltage ranges */
-static const struct stpmu1_output_range buck_voltage_range[] = {
- STPMU1_OUTPUT_RANGE(buck1_ranges, ARRAY_SIZE(buck1_ranges)),
- STPMU1_OUTPUT_RANGE(buck2_ranges, ARRAY_SIZE(buck2_ranges)),
- STPMU1_OUTPUT_RANGE(buck3_ranges, ARRAY_SIZE(buck3_ranges)),
- STPMU1_OUTPUT_RANGE(buck4_ranges, ARRAY_SIZE(buck4_ranges)),
-};
-
-/* BUCK modes */
-static const struct dm_regulator_mode buck_modes[] = {
- STPMU1_MODE(STPMU1_BUCK_MODE_HP, STPMU1_BUCK_MODE_HP, "HP"),
- STPMU1_MODE(STPMU1_BUCK_MODE_LP, STPMU1_BUCK_MODE_LP, "LP"),
-};
-
-static int stpmu1_buck_get_uv(struct udevice *dev, int buck)
-{
- int sel;
-
- sel = pmic_reg_read(dev, STPMU1_BUCKX_CTRL_REG(buck));
- if (sel < 0)
- return sel;
-
- sel &= STPMU1_BUCK_OUTPUT_MASK;
- sel >>= STPMU1_BUCK_OUTPUT_SHIFT;
-
- return stpmu1_output_find_uv(sel, &buck_voltage_range[buck]);
-}
-
-static int stpmu1_buck_get_value(struct udevice *dev)
-{
- return stpmu1_buck_get_uv(dev->parent, dev->driver_data - 1);
-}
-
-static int stpmu1_buck_set_value(struct udevice *dev, int uv)
-{
- int sel, buck = dev->driver_data - 1;
-
- sel = stpmu1_output_find_sel(uv, &buck_voltage_range[buck]);
- if (sel < 0)
- return sel;
-
- return pmic_clrsetbits(dev->parent,
- STPMU1_BUCKX_CTRL_REG(buck),
- STPMU1_BUCK_OUTPUT_MASK,
- sel << STPMU1_BUCK_OUTPUT_SHIFT);
-}
-
-static int stpmu1_buck_get_enable(struct udevice *dev)
-{
- int ret;
-
- ret = pmic_reg_read(dev->parent,
- STPMU1_BUCKX_CTRL_REG(dev->driver_data - 1));
- if (ret < 0)
- return false;
-
- return ret & STPMU1_BUCK_EN ? true : false;
-}
-
-static int stpmu1_buck_set_enable(struct udevice *dev, bool enable)
-{
- struct dm_regulator_uclass_platdata *uc_pdata;
- int delay = enable ? STPMU1_DEFAULT_START_UP_DELAY_MS :
- STPMU1_DEFAULT_STOP_DELAY_MS;
- int ret, uv;
-
- /* if regulator is already in the wanted state, nothing to do */
- if (stpmu1_buck_get_enable(dev) == enable)
- return 0;
-
- if (enable) {
- uc_pdata = dev_get_uclass_platdata(dev);
- uv = stpmu1_buck_get_value(dev);
- if ((uv < uc_pdata->min_uV) || (uv > uc_pdata->max_uV))
- stpmu1_buck_set_value(dev, uc_pdata->min_uV);
- }
-
- ret = pmic_clrsetbits(dev->parent,
- STPMU1_BUCKX_CTRL_REG(dev->driver_data - 1),
- STPMU1_BUCK_EN, enable ? STPMU1_BUCK_EN : 0);
- mdelay(delay);
-
- return ret;
-}
-
-static int stpmu1_buck_get_mode(struct udevice *dev)
-{
- int ret;
-
- ret = pmic_reg_read(dev->parent,
- STPMU1_BUCKX_CTRL_REG(dev->driver_data - 1));
- if (ret < 0)
- return ret;
-
- return ret & STPMU1_BUCK_MODE ? STPMU1_BUCK_MODE_LP :
- STPMU1_BUCK_MODE_HP;
-}
-
-static int stpmu1_buck_set_mode(struct udevice *dev, int mode)
-{
- return pmic_clrsetbits(dev->parent,
- STPMU1_BUCKX_CTRL_REG(dev->driver_data - 1),
- STPMU1_BUCK_MODE,
- mode ? STPMU1_BUCK_MODE : 0);
-}
-
-static int stpmu1_buck_probe(struct udevice *dev)
-{
- struct dm_regulator_uclass_platdata *uc_pdata;
-
- if (!dev->driver_data || dev->driver_data > STPMU1_MAX_BUCK)
- return -EINVAL;
-
- uc_pdata = dev_get_uclass_platdata(dev);
-
- uc_pdata->type = REGULATOR_TYPE_BUCK;
- uc_pdata->mode = (struct dm_regulator_mode *)buck_modes;
- uc_pdata->mode_count = ARRAY_SIZE(buck_modes);
-
- return 0;
-}
-
-static const struct dm_regulator_ops stpmu1_buck_ops = {
- .get_value = stpmu1_buck_get_value,
- .set_value = stpmu1_buck_set_value,
- .get_enable = stpmu1_buck_get_enable,
- .set_enable = stpmu1_buck_set_enable,
- .get_mode = stpmu1_buck_get_mode,
- .set_mode = stpmu1_buck_set_mode,
-};
-
-U_BOOT_DRIVER(stpmu1_buck) = {
- .name = "stpmu1_buck",
- .id = UCLASS_REGULATOR,
- .ops = &stpmu1_buck_ops,
- .probe = stpmu1_buck_probe,
-};
-
-/*
- * LDO regulators
- */
-
-static const struct stpmu1_range ldo12_ranges[] = {
- STPMU1_RANGE(1700000, 0, 7, 0),
- STPMU1_RANGE(1700000, 8, 24, 100000),
- STPMU1_RANGE(3300000, 25, 31, 0),
-};
-
-static const struct stpmu1_range ldo3_ranges[] = {
- STPMU1_RANGE(1700000, 0, 7, 0),
- STPMU1_RANGE(1700000, 8, 24, 100000),
- STPMU1_RANGE(3300000, 25, 30, 0),
- /* Sel 31 is special case when LDO3 is in mode sync_source (BUCK2/2) */
-};
-
-static const struct stpmu1_range ldo5_ranges[] = {
- STPMU1_RANGE(1700000, 0, 7, 0),
- STPMU1_RANGE(1700000, 8, 30, 100000),
- STPMU1_RANGE(3900000, 31, 31, 0),
-};
-
-static const struct stpmu1_range ldo6_ranges[] = {
- STPMU1_RANGE(900000, 0, 24, 100000),
- STPMU1_RANGE(3300000, 25, 31, 0),
-};
-
-/* LDO: 1,2,3,4,5,6 - voltage ranges */
-static const struct stpmu1_output_range ldo_voltage_range[] = {
- STPMU1_OUTPUT_RANGE(ldo12_ranges, ARRAY_SIZE(ldo12_ranges)),
- STPMU1_OUTPUT_RANGE(ldo12_ranges, ARRAY_SIZE(ldo12_ranges)),
- STPMU1_OUTPUT_RANGE(ldo3_ranges, ARRAY_SIZE(ldo3_ranges)),
- STPMU1_OUTPUT_RANGE(NULL, 0),
- STPMU1_OUTPUT_RANGE(ldo5_ranges, ARRAY_SIZE(ldo5_ranges)),
- STPMU1_OUTPUT_RANGE(ldo6_ranges, ARRAY_SIZE(ldo6_ranges)),
-};
-
-/* LDO modes */
-static const struct dm_regulator_mode ldo_modes[] = {
- STPMU1_MODE(STPMU1_LDO_MODE_NORMAL,
- STPMU1_LDO_MODE_NORMAL, "NORMAL"),
- STPMU1_MODE(STPMU1_LDO_MODE_BYPASS,
- STPMU1_LDO_MODE_BYPASS, "BYPASS"),
- STPMU1_MODE(STPMU1_LDO_MODE_SINK_SOURCE,
- STPMU1_LDO_MODE_SINK_SOURCE, "SINK SOURCE"),
-};
-
-static int stpmu1_ldo_get_value(struct udevice *dev)
-{
- int sel, ldo = dev->driver_data - 1;
-
- sel = pmic_reg_read(dev->parent, STPMU1_LDOX_CTRL_REG(ldo));
- if (sel < 0)
- return sel;
-
- /* ldo4 => 3,3V */
- if (ldo == STPMU1_LDO4)
- return STPMU1_LDO4_UV;
-
- sel &= STPMU1_LDO12356_OUTPUT_MASK;
- sel >>= STPMU1_LDO12356_OUTPUT_SHIFT;
-
- /* ldo3, sel = 31 => BUCK2/2 */
- if (ldo == STPMU1_LDO3 && sel == STPMU1_LDO3_DDR_SEL)
- return stpmu1_buck_get_uv(dev->parent, STPMU1_BUCK2) / 2;
-
- return stpmu1_output_find_uv(sel, &ldo_voltage_range[ldo]);
-}
-
-static int stpmu1_ldo_set_value(struct udevice *dev, int uv)
-{
- int sel, ldo = dev->driver_data - 1;
-
- /* ldo4 => not possible */
- if (ldo == STPMU1_LDO4)
- return -EINVAL;
-
- sel = stpmu1_output_find_sel(uv, &ldo_voltage_range[ldo]);
- if (sel < 0)
- return sel;
-
- return pmic_clrsetbits(dev->parent,
- STPMU1_LDOX_CTRL_REG(ldo),
- STPMU1_LDO12356_OUTPUT_MASK,
- sel << STPMU1_LDO12356_OUTPUT_SHIFT);
-}
-
-static int stpmu1_ldo_get_enable(struct udevice *dev)
-{
- int ret;
-
- ret = pmic_reg_read(dev->parent,
- STPMU1_LDOX_CTRL_REG(dev->driver_data - 1));
- if (ret < 0)
- return false;
-
- return ret & STPMU1_LDO_EN ? true : false;
-}
-
-static int stpmu1_ldo_set_enable(struct udevice *dev, bool enable)
-{
- struct dm_regulator_uclass_platdata *uc_pdata;
- int delay = enable ? STPMU1_DEFAULT_START_UP_DELAY_MS :
- STPMU1_DEFAULT_STOP_DELAY_MS;
- int ret, uv;
-
- /* if regulator is already in the wanted state, nothing to do */
- if (stpmu1_ldo_get_enable(dev) == enable)
- return 0;
-
- if (enable) {
- uc_pdata = dev_get_uclass_platdata(dev);
- uv = stpmu1_ldo_get_value(dev);
- if ((uv < uc_pdata->min_uV) || (uv > uc_pdata->max_uV))
- stpmu1_ldo_set_value(dev, uc_pdata->min_uV);
- }
-
- ret = pmic_clrsetbits(dev->parent,
- STPMU1_LDOX_CTRL_REG(dev->driver_data - 1),
- STPMU1_LDO_EN, enable ? STPMU1_LDO_EN : 0);
- mdelay(delay);
-
- return ret;
-}
-
-static int stpmu1_ldo_get_mode(struct udevice *dev)
-{
- int ret, ldo = dev->driver_data - 1;
-
- if (ldo != STPMU1_LDO3)
- return -EINVAL;
-
- ret = pmic_reg_read(dev->parent, STPMU1_LDOX_CTRL_REG(ldo));
- if (ret < 0)
- return ret;
-
- if (ret & STPMU1_LDO3_MODE)
- return STPMU1_LDO_MODE_BYPASS;
-
- ret &= STPMU1_LDO12356_OUTPUT_MASK;
- ret >>= STPMU1_LDO12356_OUTPUT_SHIFT;
-
- return ret == STPMU1_LDO3_DDR_SEL ? STPMU1_LDO_MODE_SINK_SOURCE :
- STPMU1_LDO_MODE_NORMAL;
-}
-
-static int stpmu1_ldo_set_mode(struct udevice *dev, int mode)
-{
- int ret, ldo = dev->driver_data - 1;
-
- if (ldo != STPMU1_LDO3)
- return -EINVAL;
-
- ret = pmic_reg_read(dev->parent, STPMU1_LDOX_CTRL_REG(ldo));
- if (ret < 0)
- return ret;
-
- switch (mode) {
- case STPMU1_LDO_MODE_SINK_SOURCE:
- ret &= ~STPMU1_LDO12356_OUTPUT_MASK;
- ret |= STPMU1_LDO3_DDR_SEL << STPMU1_LDO12356_OUTPUT_SHIFT;
- case STPMU1_LDO_MODE_NORMAL:
- ret &= ~STPMU1_LDO3_MODE;
- break;
- case STPMU1_LDO_MODE_BYPASS:
- ret |= STPMU1_LDO3_MODE;
- break;
- }
-
- return pmic_reg_write(dev->parent, STPMU1_LDOX_CTRL_REG(ldo), ret);
-}
-
-static int stpmu1_ldo_probe(struct udevice *dev)
-{
- struct dm_regulator_uclass_platdata *uc_pdata;
-
- if (!dev->driver_data || dev->driver_data > STPMU1_MAX_LDO)
- return -EINVAL;
-
- uc_pdata = dev_get_uclass_platdata(dev);
-
- uc_pdata->type = REGULATOR_TYPE_LDO;
- if (dev->driver_data - 1 == STPMU1_LDO3) {
- uc_pdata->mode = (struct dm_regulator_mode *)ldo_modes;
- uc_pdata->mode_count = ARRAY_SIZE(ldo_modes);
- } else {
- uc_pdata->mode_count = 0;
- }
-
- return 0;
-}
-
-static const struct dm_regulator_ops stpmu1_ldo_ops = {
- .get_value = stpmu1_ldo_get_value,
- .set_value = stpmu1_ldo_set_value,
- .get_enable = stpmu1_ldo_get_enable,
- .set_enable = stpmu1_ldo_set_enable,
- .get_mode = stpmu1_ldo_get_mode,
- .set_mode = stpmu1_ldo_set_mode,
-};
-
-U_BOOT_DRIVER(stpmu1_ldo) = {
- .name = "stpmu1_ldo",
- .id = UCLASS_REGULATOR,
- .ops = &stpmu1_ldo_ops,
- .probe = stpmu1_ldo_probe,
-};
-
-/*
- * VREF DDR regulator
- */
-
-static int stpmu1_vref_ddr_get_value(struct udevice *dev)
-{
- /* BUCK2/2 */
- return stpmu1_buck_get_uv(dev->parent, STPMU1_BUCK2) / 2;
-}
-
-static int stpmu1_vref_ddr_get_enable(struct udevice *dev)
-{
- int ret;
-
- ret = pmic_reg_read(dev->parent, STPMU1_VREF_CTRL_REG);
- if (ret < 0)
- return false;
-
- return ret & STPMU1_VREF_EN ? true : false;
-}
-
-static int stpmu1_vref_ddr_set_enable(struct udevice *dev, bool enable)
-{
- int delay = enable ? STPMU1_DEFAULT_START_UP_DELAY_MS :
- STPMU1_DEFAULT_STOP_DELAY_MS;
- int ret;
-
- /* if regulator is already in the wanted state, nothing to do */
- if (stpmu1_vref_ddr_get_enable(dev) == enable)
- return 0;
-
- ret = pmic_clrsetbits(dev->parent, STPMU1_VREF_CTRL_REG,
- STPMU1_VREF_EN, enable ? STPMU1_VREF_EN : 0);
- mdelay(delay);
-
- return ret;
-}
-
-static int stpmu1_vref_ddr_probe(struct udevice *dev)
-{
- struct dm_regulator_uclass_platdata *uc_pdata;
-
- uc_pdata = dev_get_uclass_platdata(dev);
-
- uc_pdata->type = REGULATOR_TYPE_FIXED;
- uc_pdata->mode_count = 0;
-
- return 0;
-}
-
-static const struct dm_regulator_ops stpmu1_vref_ddr_ops = {
- .get_value = stpmu1_vref_ddr_get_value,
- .get_enable = stpmu1_vref_ddr_get_enable,
- .set_enable = stpmu1_vref_ddr_set_enable,
-};
-
-U_BOOT_DRIVER(stpmu1_vref_ddr) = {
- .name = "stpmu1_vref_ddr",
- .id = UCLASS_REGULATOR,
- .ops = &stpmu1_vref_ddr_ops,
- .probe = stpmu1_vref_ddr_probe,
-};
-
-/*
- * BOOST regulator
- */
-
-static int stpmu1_boost_get_enable(struct udevice *dev)
-{
- int ret;
-
- ret = pmic_reg_read(dev->parent, STPMU1_USB_CTRL_REG);
- if (ret < 0)
- return false;
-
- return ret & STPMU1_USB_BOOST_EN ? true : false;
-}
-
-static int stpmu1_boost_set_enable(struct udevice *dev, bool enable)
-{
- int ret;
-
- ret = pmic_reg_read(dev->parent, STPMU1_USB_CTRL_REG);
- if (ret < 0)
- return ret;
-
- if (!enable && ret & STPMU1_USB_PWR_SW_EN)
- return -EINVAL;
-
- /* if regulator is already in the wanted state, nothing to do */
- if (!!(ret & STPMU1_USB_BOOST_EN) == enable)
- return 0;
-
- ret = pmic_clrsetbits(dev->parent, STPMU1_USB_CTRL_REG,
- STPMU1_USB_BOOST_EN,
- enable ? STPMU1_USB_BOOST_EN : 0);
- if (enable)
- mdelay(STPMU1_USB_BOOST_START_UP_DELAY_MS);
-
- return ret;
-}
-
-static int stpmu1_boost_probe(struct udevice *dev)
-{
- struct dm_regulator_uclass_platdata *uc_pdata;
-
- uc_pdata = dev_get_uclass_platdata(dev);
-
- uc_pdata->type = REGULATOR_TYPE_FIXED;
- uc_pdata->mode_count = 0;
-
- return 0;
-}
-
-static const struct dm_regulator_ops stpmu1_boost_ops = {
- .get_enable = stpmu1_boost_get_enable,
- .set_enable = stpmu1_boost_set_enable,
-};
-
-U_BOOT_DRIVER(stpmu1_boost) = {
- .name = "stpmu1_boost",
- .id = UCLASS_REGULATOR,
- .ops = &stpmu1_boost_ops,
- .probe = stpmu1_boost_probe,
-};
-
-/*
- * USB power switch
- */
-
-static int stpmu1_pwr_sw_get_enable(struct udevice *dev)
-{
- uint mask = 1 << dev->driver_data;
- int ret;
-
- ret = pmic_reg_read(dev->parent, STPMU1_USB_CTRL_REG);
- if (ret < 0)
- return false;
-
- return ret & mask ? true : false;
-}
-
-static int stpmu1_pwr_sw_set_enable(struct udevice *dev, bool enable)
-{
- uint mask = 1 << dev->driver_data;
- int delay = enable ? STPMU1_DEFAULT_START_UP_DELAY_MS :
- STPMU1_DEFAULT_STOP_DELAY_MS;
- int ret;
-
- ret = pmic_reg_read(dev->parent, STPMU1_USB_CTRL_REG);
- if (ret < 0)
- return ret;
-
- /* if regulator is already in the wanted state, nothing to do */
- if (!!(ret & mask) == enable)
- return 0;
-
- /* Boost management */
- if (enable && !(ret & STPMU1_USB_BOOST_EN)) {
- pmic_clrsetbits(dev->parent, STPMU1_USB_CTRL_REG,
- STPMU1_USB_BOOST_EN, STPMU1_USB_BOOST_EN);
- mdelay(STPMU1_USB_BOOST_START_UP_DELAY_MS);
- } else if (!enable && ret & STPMU1_USB_BOOST_EN &&
- (ret & STPMU1_USB_PWR_SW_EN) != STPMU1_USB_PWR_SW_EN) {
- pmic_clrsetbits(dev->parent, STPMU1_USB_CTRL_REG,
- STPMU1_USB_BOOST_EN, 0);
- }
-
- ret = pmic_clrsetbits(dev->parent, STPMU1_USB_CTRL_REG,
- mask, enable ? mask : 0);
- mdelay(delay);
-
- return ret;
-}
-
-static int stpmu1_pwr_sw_probe(struct udevice *dev)
-{
- struct dm_regulator_uclass_platdata *uc_pdata;
-
- if (!dev->driver_data || dev->driver_data > STPMU1_MAX_PWR_SW)
- return -EINVAL;
-
- uc_pdata = dev_get_uclass_platdata(dev);
-
- uc_pdata->type = REGULATOR_TYPE_FIXED;
- uc_pdata->mode_count = 0;
-
- return 0;
-}
-
-static const struct dm_regulator_ops stpmu1_pwr_sw_ops = {
- .get_enable = stpmu1_pwr_sw_get_enable,
- .set_enable = stpmu1_pwr_sw_set_enable,
-};
-
-U_BOOT_DRIVER(stpmu1_pwr_sw) = {
- .name = "stpmu1_pwr_sw",
- .id = UCLASS_REGULATOR,
- .ops = &stpmu1_pwr_sw_ops,
- .probe = stpmu1_pwr_sw_probe,
-};
--- /dev/null
+/*
+ * This file is part of stpmu1 pmic driver
+ *
+ * Copyright (C) 2017, STMicroelectronics - All Rights Reserved
+ * Author: Pascal Paillet <p.paillet@st.com> for STMicroelectronics.
+ *
+ * License type: GPLv2
+ *
+ * This program is free software; you can redistribute it and/or modify it
+ * under the terms of the GNU General Public License version 2 as published by
+ * the Free Software Foundation.
+ *
+ * This program is distributed in the hope that it will be useful, but
+ * WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY
+ * or FITNESS FOR A PARTICULAR PURPOSE.
+ * See the GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License along with
+ * this program. If not, see <http://www.gnu.org/licenses/>.
+ */
+
+#ifndef __DT_BINDINGS_STPMU1_H__
+#define __DT_BINDINGS_STPMU1_H__
+
+/* IRQ definitions */
+#define IT_PONKEY_F 0
+#define IT_PONKEY_R 1
+#define IT_WAKEUP_F 2
+#define IT_WAKEUP_R 3
+#define IT_VBUS_OTG_F 4
+#define IT_VBUS_OTG_R 5
+#define IT_SWOUT_F 6
+#define IT_SWOUT_R 7
+
+#define IT_CURLIM_BUCK1 8
+#define IT_CURLIM_BUCK2 9
+#define IT_CURLIM_BUCK3 10
+#define IT_CURLIM_BUCK4 11
+#define IT_OCP_OTG 12
+#define IT_OCP_SWOUT 13
+#define IT_OCP_BOOST 14
+#define IT_OVP_BOOST 15
+
+#define IT_CURLIM_LDO1 16
+#define IT_CURLIM_LDO2 17
+#define IT_CURLIM_LDO3 18
+#define IT_CURLIM_LDO4 19
+#define IT_CURLIM_LDO5 20
+#define IT_CURLIM_LDO6 21
+#define IT_SHORT_SWOTG 22
+#define IT_SHORT_SWOUT 23
+
+#define IT_TWARN_F 24
+#define IT_TWARN_R 25
+#define IT_VINLOW_F 26
+#define IT_VINLOW_R 27
+#define IT_SWIN_F 30
+#define IT_SWIN_R 31
+
+#endif /* __DT_BINDINGS_STPMU1_H__ */
+++ /dev/null
-/*
- * This file is part of stpmu1 pmic driver
- *
- * Copyright (C) 2017, STMicroelectronics - All Rights Reserved
- * Author: Pascal Paillet <p.paillet@st.com> for STMicroelectronics.
- *
- * License type: GPLv2
- *
- * This program is free software; you can redistribute it and/or modify it
- * under the terms of the GNU General Public License version 2 as published by
- * the Free Software Foundation.
- *
- * This program is distributed in the hope that it will be useful, but
- * WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY
- * or FITNESS FOR A PARTICULAR PURPOSE.
- * See the GNU General Public License for more details.
- *
- * You should have received a copy of the GNU General Public License along with
- * this program. If not, see <http://www.gnu.org/licenses/>.
- */
-
-#ifndef __DT_BINDINGS_STPMU1_H__
-#define __DT_BINDINGS_STPMU1_H__
-
-/* IRQ definitions */
-#define IT_PONKEY_F 0
-#define IT_PONKEY_R 1
-#define IT_WAKEUP_F 2
-#define IT_WAKEUP_R 3
-#define IT_VBUS_OTG_F 4
-#define IT_VBUS_OTG_R 5
-#define IT_SWOUT_F 6
-#define IT_SWOUT_R 7
-
-#define IT_CURLIM_BUCK1 8
-#define IT_CURLIM_BUCK2 9
-#define IT_CURLIM_BUCK3 10
-#define IT_CURLIM_BUCK4 11
-#define IT_OCP_OTG 12
-#define IT_OCP_SWOUT 13
-#define IT_OCP_BOOST 14
-#define IT_OVP_BOOST 15
-
-#define IT_CURLIM_LDO1 16
-#define IT_CURLIM_LDO2 17
-#define IT_CURLIM_LDO3 18
-#define IT_CURLIM_LDO4 19
-#define IT_CURLIM_LDO5 20
-#define IT_CURLIM_LDO6 21
-#define IT_SHORT_SWOTG 22
-#define IT_SHORT_SWOUT 23
-
-#define IT_TWARN_F 24
-#define IT_TWARN_R 25
-#define IT_VINLOW_F 26
-#define IT_VINLOW_R 27
-#define IT_SWIN_F 30
-#define IT_SWIN_R 31
-
-#endif /* __DT_BINDINGS_STPMU1_H__ */
--- /dev/null
+/* SPDX-License-Identifier: GPL-2.0+ OR BSD-3-Clause */
+/*
+ * Copyright (C) 2018, STMicroelectronics - All Rights Reserved
+ */
+
+#ifndef __PMIC_STPMU1_H_
+#define __PMIC_STPMU1_H_
+
+#define STPMU1_MASK_RESET_BUCK 0x18
+#define STPMU1_BUCKX_CTRL_REG(buck) (0x20 + (buck))
+#define STPMU1_VREF_CTRL_REG 0x24
+#define STPMU1_LDOX_CTRL_REG(ldo) (0x25 + (ldo))
+#define STPMU1_USB_CTRL_REG 0x40
+#define STPMU1_NVM_USER_STATUS_REG 0xb8
+#define STPMU1_NVM_USER_CONTROL_REG 0xb9
+
+#define STPMU1_MASK_RESET_BUCK3 BIT(2)
+
+#define STPMU1_BUCK_EN BIT(0)
+#define STPMU1_BUCK_MODE BIT(1)
+#define STPMU1_BUCK_OUTPUT_MASK GENMASK(7, 2)
+#define STPMU1_BUCK_OUTPUT_SHIFT 2
+#define STPMU1_BUCK2_1200000V (24 << STPMU1_BUCK_OUTPUT_SHIFT)
+#define STPMU1_BUCK2_1350000V (30 << STPMU1_BUCK_OUTPUT_SHIFT)
+#define STPMU1_BUCK3_1800000V (39 << STPMU1_BUCK_OUTPUT_SHIFT)
+
+#define STPMU1_VREF_EN BIT(0)
+
+#define STPMU1_LDO_EN BIT(0)
+#define STPMU1_LDO12356_OUTPUT_MASK GENMASK(6, 2)
+#define STPMU1_LDO12356_OUTPUT_SHIFT 2
+#define STPMU1_LDO3_MODE BIT(7)
+#define STPMU1_LDO3_DDR_SEL 31
+#define STPMU1_LDO3_1800000 (9 << STPMU1_LDO12356_OUTPUT_SHIFT)
+#define STPMU1_LDO4_UV 3300000
+
+#define STPMU1_USB_BOOST_EN BIT(0)
+#define STPMU1_USB_PWR_SW_EN GENMASK(2, 1)
+
+#define STPMU1_NVM_USER_CONTROL_PROGRAM BIT(0)
+#define STPMU1_NVM_USER_CONTROL_READ BIT(1)
+
+#define STPMU1_NVM_USER_STATUS_BUSY BIT(0)
+#define STPMU1_NVM_USER_STATUS_ERROR BIT(1)
+
+#define STPMU1_DEFAULT_START_UP_DELAY_MS 1
+#define STPMU1_DEFAULT_STOP_DELAY_MS 5
+#define STPMU1_USB_BOOST_START_UP_DELAY_MS 10
+
+enum {
+ STPMU1_BUCK1,
+ STPMU1_BUCK2,
+ STPMU1_BUCK3,
+ STPMU1_BUCK4,
+ STPMU1_MAX_BUCK,
+};
+
+enum {
+ STPMU1_BUCK_MODE_HP,
+ STPMU1_BUCK_MODE_LP,
+};
+
+enum {
+ STPMU1_LDO1,
+ STPMU1_LDO2,
+ STPMU1_LDO3,
+ STPMU1_LDO4,
+ STPMU1_LDO5,
+ STPMU1_LDO6,
+ STPMU1_MAX_LDO,
+};
+
+enum {
+ STPMU1_LDO_MODE_NORMAL,
+ STPMU1_LDO_MODE_BYPASS,
+ STPMU1_LDO_MODE_SINK_SOURCE,
+};
+
+enum {
+ STPMU1_PWR_SW1,
+ STPMU1_PWR_SW2,
+ STPMU1_MAX_PWR_SW,
+};
+
+#endif
+++ /dev/null
-/* SPDX-License-Identifier: GPL-2.0+ OR BSD-3-Clause */
-/*
- * Copyright (C) 2018, STMicroelectronics - All Rights Reserved
- */
-
-#ifndef __PMIC_STPMU1_H_
-#define __PMIC_STPMU1_H_
-
-#define STPMU1_MASK_RESET_BUCK 0x18
-#define STPMU1_BUCKX_CTRL_REG(buck) (0x20 + (buck))
-#define STPMU1_VREF_CTRL_REG 0x24
-#define STPMU1_LDOX_CTRL_REG(ldo) (0x25 + (ldo))
-#define STPMU1_USB_CTRL_REG 0x40
-#define STPMU1_NVM_USER_STATUS_REG 0xb8
-#define STPMU1_NVM_USER_CONTROL_REG 0xb9
-
-#define STPMU1_MASK_RESET_BUCK3 BIT(2)
-
-#define STPMU1_BUCK_EN BIT(0)
-#define STPMU1_BUCK_MODE BIT(1)
-#define STPMU1_BUCK_OUTPUT_MASK GENMASK(7, 2)
-#define STPMU1_BUCK_OUTPUT_SHIFT 2
-#define STPMU1_BUCK2_1200000V (24 << STPMU1_BUCK_OUTPUT_SHIFT)
-#define STPMU1_BUCK2_1350000V (30 << STPMU1_BUCK_OUTPUT_SHIFT)
-#define STPMU1_BUCK3_1800000V (39 << STPMU1_BUCK_OUTPUT_SHIFT)
-
-#define STPMU1_VREF_EN BIT(0)
-
-#define STPMU1_LDO_EN BIT(0)
-#define STPMU1_LDO12356_OUTPUT_MASK GENMASK(6, 2)
-#define STPMU1_LDO12356_OUTPUT_SHIFT 2
-#define STPMU1_LDO3_MODE BIT(7)
-#define STPMU1_LDO3_DDR_SEL 31
-#define STPMU1_LDO3_1800000 (9 << STPMU1_LDO12356_OUTPUT_SHIFT)
-#define STPMU1_LDO4_UV 3300000
-
-#define STPMU1_USB_BOOST_EN BIT(0)
-#define STPMU1_USB_PWR_SW_EN GENMASK(2, 1)
-
-#define STPMU1_NVM_USER_CONTROL_PROGRAM BIT(0)
-#define STPMU1_NVM_USER_CONTROL_READ BIT(1)
-
-#define STPMU1_NVM_USER_STATUS_BUSY BIT(0)
-#define STPMU1_NVM_USER_STATUS_ERROR BIT(1)
-
-#define STPMU1_DEFAULT_START_UP_DELAY_MS 1
-#define STPMU1_DEFAULT_STOP_DELAY_MS 5
-#define STPMU1_USB_BOOST_START_UP_DELAY_MS 10
-
-enum {
- STPMU1_BUCK1,
- STPMU1_BUCK2,
- STPMU1_BUCK3,
- STPMU1_BUCK4,
- STPMU1_MAX_BUCK,
-};
-
-enum {
- STPMU1_BUCK_MODE_HP,
- STPMU1_BUCK_MODE_LP,
-};
-
-enum {
- STPMU1_LDO1,
- STPMU1_LDO2,
- STPMU1_LDO3,
- STPMU1_LDO4,
- STPMU1_LDO5,
- STPMU1_LDO6,
- STPMU1_MAX_LDO,
-};
-
-enum {
- STPMU1_LDO_MODE_NORMAL,
- STPMU1_LDO_MODE_BYPASS,
- STPMU1_LDO_MODE_SINK_SOURCE,
-};
-
-enum {
- STPMU1_PWR_SW1,
- STPMU1_PWR_SW2,
- STPMU1_MAX_PWR_SW,
-};
-
-#endif
projects / oweals / u-boot.git / commitdiff