power: regulator: ADD PMIC PF9453 support
Add regulator support for NXP PMIC pf9453 for imx91 qsb. Reviewed-by: Ye Li <ye.li@nxp.com> Reviewed-by: Peng Fan <peng.fan@nxp.com> Signed-off-by: Joy Zou <joy.zou@nxp.com> Signed-off-by: Peng Fan <peng.fan@nxp.com> Rebased [1] on main and LDO SNVS access / checkpatch fixed. See also [2] [1] https://patchwork.ozlabs.org/project/uboot/patch/20240930035531.27079-4-peng.fan@oss.nxp.com/ [2] https://lists.u-boot-project.org/pipermail/u-boot/2026-July/625613.html Signed-off-by: Krzysztof Drobiński <krzysztof@kd-solutions.pl>
This commit is contained in:
Joy Zou
Peng Fan
@@ -103,6 +103,21 @@ config SPL_DM_REGULATOR_PCA9450
|
||||
This config enables implementation of driver-model regulator uclass
|
||||
features for regulators on ROHM PCA9450 in SPL.
|
||||
|
||||
config DM_REGULATOR_PF9453
|
||||
bool "Enable Driver Model for NXP PF9453 regulators"
|
||||
depends on DM_REGULATOR && DM_PMIC_PF9453
|
||||
help
|
||||
This config enables implementation of driver-model regulator uclass
|
||||
features for regulators on NXP PF9453 PMICs. PF9453 contains 6 bucks
|
||||
and 5 LDOS. The driver implements get/set api for value and enable.
|
||||
|
||||
config SPL_DM_REGULATOR_PF9453
|
||||
bool "Enable Driver Model for NXP PF9453 regulators in SPL"
|
||||
depends on DM_REGULATOR_PF9453 && SPL
|
||||
help
|
||||
This config enables implementation of driver-model regulator uclass
|
||||
features for regulators on ROHM PF9453 in SPL.
|
||||
|
||||
config DM_REGULATOR_DA9063
|
||||
bool "Enable Driver Model for REGULATOR DA9063"
|
||||
depends on DM_REGULATOR && DM_PMIC_DA9063
|
||||
|
||||
@@ -18,6 +18,7 @@ obj-$(CONFIG_DM_REGULATOR_NPCM8XX) += npcm8xx_regulator.o
|
||||
obj-$(CONFIG_$(PHASE_)DM_REGULATOR_PFUZE100) += pfuze100.o
|
||||
obj-$(CONFIG_$(PHASE_)DM_REGULATOR_BD71837) += bd71837.o
|
||||
obj-$(CONFIG_$(PHASE_)DM_REGULATOR_PCA9450) += pca9450.o
|
||||
obj-$(CONFIG_$(PHASE_)DM_REGULATOR_PF9453) += pf9453.o
|
||||
obj-$(CONFIG_$(PHASE_)REGULATOR_PWM) += pwm_regulator.o
|
||||
obj-$(CONFIG_$(PHASE_)DM_REGULATOR_FAN53555) += fan53555.o
|
||||
obj-$(CONFIG_$(PHASE_)DM_REGULATOR_COMMON) += regulator_common.o
|
||||
|
||||
@@ -0,0 +1,256 @@
|
||||
// SPDX-License-Identifier: GPL-2.0-or-later
|
||||
/*
|
||||
* NXP PF9453 regulator driver
|
||||
* Copyright 2024 NXP
|
||||
*/
|
||||
|
||||
#include <dm.h>
|
||||
#include <errno.h>
|
||||
#include <log.h>
|
||||
#include <linux/bitops.h>
|
||||
#include <power/pf9453.h>
|
||||
#include <power/pmic.h>
|
||||
#include <power/regulator.h>
|
||||
|
||||
/**
|
||||
* struct pf9453_vrange - describe linear range of voltages
|
||||
*
|
||||
* @min_volt: smallest voltage in range
|
||||
* @step: how much voltage changes at each selector step
|
||||
* @min_sel: smallest selector in the range
|
||||
* @max_sel: maximum selector in the range
|
||||
*/
|
||||
struct pf9453_vrange {
|
||||
unsigned int min_volt;
|
||||
unsigned int step;
|
||||
u8 min_sel;
|
||||
u8 max_sel;
|
||||
};
|
||||
|
||||
/**
|
||||
* struct pf9453_plat - describe regulator control registers
|
||||
*
|
||||
* @name: name of the regulator. Used for matching the dt-entry
|
||||
* @enable_reg: register address used to enable/disable regulator
|
||||
* @enablemask: register mask used to enable/disable regulator
|
||||
* @volt_reg: register address used to configure regulator voltage
|
||||
* @volt_mask: register mask used to configure regulator voltage
|
||||
* @ranges: pointer to ranges of regulator voltages and matching register
|
||||
* values
|
||||
* @numranges: number of voltage ranges pointed by ranges
|
||||
*/
|
||||
struct pf9453_plat {
|
||||
const char *name;
|
||||
u8 enable_reg;
|
||||
u8 enablemask;
|
||||
u8 volt_reg;
|
||||
u8 volt_mask;
|
||||
struct pf9453_vrange *ranges;
|
||||
unsigned int numranges;
|
||||
};
|
||||
|
||||
#define PCA_RANGE(_min, _vstep, _sel_low, _sel_hi) \
|
||||
{ \
|
||||
.min_volt = (_min), .step = (_vstep), \
|
||||
.min_sel = (_sel_low), .max_sel = (_sel_hi), \
|
||||
}
|
||||
|
||||
#define PCA_DATA(_name, enreg, enmask, vreg, vmask, _range, _numranges) \
|
||||
{ \
|
||||
.name = (_name), .enable_reg = (enreg), .enablemask = (enmask), \
|
||||
.volt_reg = (vreg), .volt_mask = (vmask), .ranges = (_range), \
|
||||
.numranges = _numranges \
|
||||
}
|
||||
|
||||
static struct pf9453_vrange pf9453_buck134_vranges[] = {
|
||||
PCA_RANGE(600000, 25000, 0, 0x7f),
|
||||
};
|
||||
|
||||
static struct pf9453_vrange pf9453_buck2_vranges[] = {
|
||||
PCA_RANGE(600000, 12500, 0, 0x7f),
|
||||
};
|
||||
|
||||
static struct pf9453_vrange pf9453_ldo1_vranges[] = {
|
||||
PCA_RANGE(800000, 25000, 0x0, 0x64),
|
||||
};
|
||||
|
||||
static struct pf9453_vrange pf9453_ldo2_vranges[] = {
|
||||
PCA_RANGE(500000, 25000, 0x0, 0x3a),
|
||||
};
|
||||
|
||||
static struct pf9453_vrange pf9453_ldosnvs_vranges[] = {
|
||||
PCA_RANGE(800000, 25000, 0x0, 0x58),
|
||||
};
|
||||
|
||||
static struct pf9453_plat pf9453_reg_data[] = {
|
||||
PCA_DATA("BUCK1", PF9453_BUCK1CTRL, PF9453_EN_MODE_MASK,
|
||||
PF9453_BUCK1OUT, PF9453_BUCK_RUN_MASK,
|
||||
pf9453_buck134_vranges, ARRAY_SIZE(pf9453_buck134_vranges)),
|
||||
PCA_DATA("BUCK2", PF9453_BUCK2CTRL, PF9453_EN_MODE_MASK,
|
||||
PF9453_BUCK2OUT, PF9453_BUCK_RUN_MASK,
|
||||
pf9453_buck2_vranges, ARRAY_SIZE(pf9453_buck2_vranges)),
|
||||
PCA_DATA("BUCK3", PF9453_BUCK3CTRL, PF9453_EN_MODE_MASK,
|
||||
PF9453_BUCK3OUT, PF9453_BUCK_RUN_MASK,
|
||||
pf9453_buck134_vranges, ARRAY_SIZE(pf9453_buck134_vranges)),
|
||||
PCA_DATA("BUCK4", PF9453_BUCK4CTRL, PF9453_EN_MODE_MASK,
|
||||
PF9453_BUCK4OUT, PF9453_BUCK_RUN_MASK,
|
||||
pf9453_buck134_vranges, ARRAY_SIZE(pf9453_buck134_vranges)),
|
||||
/* LDOs */
|
||||
PCA_DATA("LDO1", PF9453_LDO1CFG, PF9453_EN_MODE_MASK,
|
||||
PF9453_LDO1OUT_H, PF9453_LDO1_MASK,
|
||||
pf9453_ldo1_vranges, ARRAY_SIZE(pf9453_ldo1_vranges)),
|
||||
PCA_DATA("LDO2", PF9453_LDO2CFG, PF9453_EN_MODE_MASK,
|
||||
PF9453_LDO2OUT, PF9453_LDO2_MASK,
|
||||
pf9453_ldo2_vranges, ARRAY_SIZE(pf9453_ldo2_vranges)),
|
||||
PCA_DATA("LDO-SNVS", PF9453_LDOSNVS_CFG2, PF9453_EN_MODE_MASK,
|
||||
PF9453_LDOSNVS_CFG1, PF9453_LDOSNVS_MASK,
|
||||
pf9453_ldosnvs_vranges, ARRAY_SIZE(pf9453_ldosnvs_vranges)),
|
||||
};
|
||||
|
||||
static int vrange_find_value(struct pf9453_vrange *r, unsigned int sel,
|
||||
unsigned int *val)
|
||||
{
|
||||
if (!val || sel < r->min_sel || sel > r->max_sel)
|
||||
return -EINVAL;
|
||||
|
||||
*val = r->min_volt + r->step * (sel - r->min_sel);
|
||||
return 0;
|
||||
}
|
||||
|
||||
static int vrange_find_selector(struct pf9453_vrange *r, int val,
|
||||
unsigned int *sel)
|
||||
{
|
||||
int ret = -EINVAL;
|
||||
int num_vals = r->max_sel - r->min_sel + 1;
|
||||
|
||||
if (val >= r->min_volt &&
|
||||
val <= r->min_volt + r->step * (num_vals - 1)) {
|
||||
if (r->step) {
|
||||
*sel = r->min_sel + ((val - r->min_volt) / r->step);
|
||||
ret = 0;
|
||||
} else {
|
||||
*sel = r->min_sel;
|
||||
ret = 0;
|
||||
}
|
||||
}
|
||||
return ret;
|
||||
}
|
||||
|
||||
static int pf9453_get_enable(struct udevice *dev)
|
||||
{
|
||||
struct pf9453_plat *plat = dev_get_plat(dev);
|
||||
int val;
|
||||
|
||||
val = pmic_reg_read(dev->parent, plat->enable_reg);
|
||||
if (val < 0)
|
||||
return val;
|
||||
|
||||
return (val & plat->enablemask);
|
||||
}
|
||||
|
||||
static int pf9453_set_enable(struct udevice *dev, bool enable)
|
||||
{
|
||||
int val = 0;
|
||||
struct pf9453_plat *plat = dev_get_plat(dev);
|
||||
|
||||
if (enable)
|
||||
val = plat->enablemask;
|
||||
|
||||
return pmic_clrsetbits(dev->parent, plat->enable_reg, plat->enablemask,
|
||||
val);
|
||||
}
|
||||
|
||||
static int pf9453_get_value(struct udevice *dev)
|
||||
{
|
||||
struct pf9453_plat *plat = dev_get_plat(dev);
|
||||
unsigned int reg, tmp;
|
||||
int i, ret;
|
||||
|
||||
ret = pmic_reg_read(dev->parent, plat->volt_reg);
|
||||
if (ret < 0)
|
||||
return ret;
|
||||
|
||||
reg = ret;
|
||||
reg &= plat->volt_mask;
|
||||
|
||||
for (i = 0; i < plat->numranges; i++) {
|
||||
struct pf9453_vrange *r = &plat->ranges[i];
|
||||
|
||||
if (!vrange_find_value(r, reg, &tmp))
|
||||
return tmp;
|
||||
}
|
||||
|
||||
pr_err("Unknown voltage value read from pmic\n");
|
||||
|
||||
return -EINVAL;
|
||||
}
|
||||
|
||||
static int pf9453_set_value(struct udevice *dev, int uvolt)
|
||||
{
|
||||
struct pf9453_plat *plat = dev_get_plat(dev);
|
||||
unsigned int sel;
|
||||
int i, found = 0;
|
||||
|
||||
for (i = 0; i < plat->numranges; i++) {
|
||||
struct pf9453_vrange *r = &plat->ranges[i];
|
||||
|
||||
found = !vrange_find_selector(r, uvolt, &sel);
|
||||
if (found) {
|
||||
unsigned int tmp;
|
||||
|
||||
/*
|
||||
* We require exactly the requested value to be
|
||||
* supported - this can be changed later if needed
|
||||
*/
|
||||
found = !vrange_find_value(r, sel, &tmp);
|
||||
if (found && tmp == uvolt)
|
||||
break;
|
||||
found = 0;
|
||||
}
|
||||
}
|
||||
|
||||
if (!found)
|
||||
return -EINVAL;
|
||||
|
||||
return pmic_clrsetbits(dev->parent, plat->volt_reg,
|
||||
plat->volt_mask, sel);
|
||||
}
|
||||
|
||||
static int pf9453_regulator_probe(struct udevice *dev)
|
||||
{
|
||||
struct pf9453_plat *plat = dev_get_plat(dev);
|
||||
int i, type;
|
||||
|
||||
type = dev_get_driver_data(dev_get_parent(dev));
|
||||
|
||||
if (type != NXP_CHIP_TYPE_PF9453) {
|
||||
debug("Unknown PMIC type\n");
|
||||
return -EINVAL;
|
||||
}
|
||||
|
||||
for (i = 0; i < ARRAY_SIZE(pf9453_reg_data); i++) {
|
||||
if (strcmp(dev->name, pf9453_reg_data[i].name))
|
||||
continue;
|
||||
*plat = pf9453_reg_data[i];
|
||||
return 0;
|
||||
}
|
||||
|
||||
pr_err("Unknown regulator '%s'\n", dev->name);
|
||||
|
||||
return -ENOENT;
|
||||
}
|
||||
|
||||
static const struct dm_regulator_ops pf9453_regulator_ops = {
|
||||
.get_value = pf9453_get_value,
|
||||
.set_value = pf9453_set_value,
|
||||
.get_enable = pf9453_get_enable,
|
||||
.set_enable = pf9453_set_enable,
|
||||
};
|
||||
|
||||
U_BOOT_DRIVER(pf9453_regulator) = {
|
||||
.name = PF9453_REGULATOR_DRIVER,
|
||||
.id = UCLASS_REGULATOR,
|
||||
.ops = &pf9453_regulator_ops,
|
||||
.probe = pf9453_regulator_probe,
|
||||
.plat_auto = sizeof(struct pf9453_plat),
|
||||
};
|
||||
Reference in New Issue
Block a user