regulator: pfuze100: add pfuze3001 support

This extends the pfuze100 driver with pfuze3001 support.

Latest datasheet:
https://www.nxp.com/docs/en/data-sheet/PF3001.pdf

Signed-off-by: Robin Gong <yibin.gong@nxp.com>
Signed-off-by: Stefan Wahren <stefan.wahren@i2se.com>
Signed-off-by: Mark Brown <broonie@kernel.org>

diff --git a/drivers/regulator/Kconfig b/drivers/regulator/Kconfig
index 5dbccf5f3037a84b2aab52d1305e7612a33db0a4..2964eaea94c0659b576952964fbd41e3ec386082 100644 (file)
--- a/drivers/regulator/Kconfig
+++ b/drivers/regulator/Kconfig
@@ -633,12 +633,12 @@ config REGULATOR_PCF50633
         on PCF50633
 
 config REGULATOR_PFUZE100
-       tristate "Freescale PFUZE100/200/3000 regulator driver"
+       tristate "Freescale PFUZE100/200/3000/3001 regulator driver"
        depends on I2C
        select REGMAP_I2C
        help
          Say y here to support the regulators found on the Freescale
-         PFUZE100/200/3000 PMIC.
+         PFUZE100/200/3000/3001 PMIC.
 
 config REGULATOR_PV88060
        tristate "Powerventure Semiconductor PV88060 regulator"

diff --git a/drivers/regulator/pfuze100-regulator.c b/drivers/regulator/pfuze100-regulator.c
index 8d9dbcc775eaa77dce16612d451b9a790dacc45b..32f9af7f87c40d73aaf5050bb77ca5f417dc9525 100644 (file)
--- a/drivers/regulator/pfuze100-regulator.c
+++ b/drivers/regulator/pfuze100-regulator.c
@@ -44,7 +44,7 @@
 #define PFUZE100_VGEN5VOL      0x70
 #define PFUZE100_VGEN6VOL      0x71
 
-enum chips { PFUZE100, PFUZE200, PFUZE3000 = 3 };
+enum chips { PFUZE100, PFUZE200, PFUZE3000 = 3, PFUZE3001 = 0x31, };
 
 struct pfuze_regulator {
        struct regulator_desc desc;
@@ -92,6 +92,7 @@ static const struct i2c_device_id pfuze_device_id[] = {
        {.name = "pfuze100", .driver_data = PFUZE100},
        {.name = "pfuze200", .driver_data = PFUZE200},
        {.name = "pfuze3000", .driver_data = PFUZE3000},
+       {.name = "pfuze3001", .driver_data = PFUZE3001},
        { }
 };
 MODULE_DEVICE_TABLE(i2c, pfuze_device_id);
@@ -100,6 +101,7 @@ static const struct of_device_id pfuze_dt_ids[] = {
        { .compatible = "fsl,pfuze100", .data = (void *)PFUZE100},
        { .compatible = "fsl,pfuze200", .data = (void *)PFUZE200},
        { .compatible = "fsl,pfuze3000", .data = (void *)PFUZE3000},
+       { .compatible = "fsl,pfuze3001", .data = (void *)PFUZE3001},
        { }
 };
 MODULE_DEVICE_TABLE(of, pfuze_dt_ids);
@@ -108,10 +110,28 @@ static int pfuze100_set_ramp_delay(struct regulator_dev *rdev, int ramp_delay)
 {
        struct pfuze_chip *pfuze100 = rdev_get_drvdata(rdev);
        int id = rdev_get_id(rdev);
+       bool reg_has_ramp_delay;
        unsigned int ramp_bits;
        int ret;
 
-       if (id < PFUZE100_SWBST) {
+       switch (pfuze100->chip_id) {
+       case PFUZE3001:
+               /* no dynamic voltage scaling for PF3001 */
+               reg_has_ramp_delay = false;
+               break;
+       case PFUZE3000:
+               reg_has_ramp_delay = (id < PFUZE3000_SWBST);
+               break;
+       case PFUZE200:
+               reg_has_ramp_delay = (id < PFUZE200_SWBST);
+               break;
+       case PFUZE100:
+       default:
+               reg_has_ramp_delay = (id < PFUZE100_SWBST);
+               break;
+       }
+
+       if (reg_has_ramp_delay) {
                ramp_delay = 12500 / ramp_delay;
                ramp_bits = (ramp_delay >> 1) - (ramp_delay >> 3);
                ret = regmap_update_bits(pfuze100->regmap,
@@ -119,8 +139,9 @@ static int pfuze100_set_ramp_delay(struct regulator_dev *rdev, int ramp_delay)
                                         0xc0, ramp_bits << 6);
                if (ret < 0)
                        dev_err(pfuze100->dev, "ramp failed, err %d\n", ret);
-       } else
+       } else {
                ret = -EACCES;
+       }
 
        return ret;
 }
@@ -361,6 +382,19 @@ static struct pfuze_regulator pfuze3000_regulators[] = {
        PFUZE100_VGEN_REG(PFUZE3000, VLDO4, PFUZE100_VGEN6VOL, 1800000, 3300000, 100000),
 };
 
+static struct pfuze_regulator pfuze3001_regulators[] = {
+       PFUZE100_SWB_REG(PFUZE3001, SW1, PFUZE100_SW1ABVOL, 0x1f, pfuze3000_sw1a),
+       PFUZE100_SWB_REG(PFUZE3001, SW2, PFUZE100_SW2VOL, 0x7, pfuze3000_sw2lo),
+       PFUZE3000_SW3_REG(PFUZE3001, SW3, PFUZE100_SW3AVOL, 900000, 1650000, 50000),
+       PFUZE100_SWB_REG(PFUZE3001, VSNVS, PFUZE100_VSNVSVOL, 0x7, pfuze100_vsnvs),
+       PFUZE100_VGEN_REG(PFUZE3001, VLDO1, PFUZE100_VGEN1VOL, 1800000, 3300000, 100000),
+       PFUZE100_VGEN_REG(PFUZE3001, VLDO2, PFUZE100_VGEN2VOL, 800000, 1550000, 50000),
+       PFUZE3000_VCC_REG(PFUZE3001, VCCSD, PFUZE100_VGEN3VOL, 2850000, 3300000, 150000),
+       PFUZE3000_VCC_REG(PFUZE3001, V33, PFUZE100_VGEN4VOL, 2850000, 3300000, 150000),
+       PFUZE100_VGEN_REG(PFUZE3001, VLDO3, PFUZE100_VGEN5VOL, 1800000, 3300000, 100000),
+       PFUZE100_VGEN_REG(PFUZE3001, VLDO4, PFUZE100_VGEN6VOL, 1800000, 3300000, 100000),
+};
+
 #ifdef CONFIG_OF
 /* PFUZE100 */
 static struct of_regulator_match pfuze100_matches[] = {
@@ -418,6 +452,21 @@ static struct of_regulator_match pfuze3000_matches[] = {
        { .name = "vldo4",      },
 };
 
+/* PFUZE3001 */
+static struct of_regulator_match pfuze3001_matches[] = {
+
+       { .name = "sw1",        },
+       { .name = "sw2",        },
+       { .name = "sw3",        },
+       { .name = "vsnvs",      },
+       { .name = "vldo1",      },
+       { .name = "vldo2",      },
+       { .name = "vccsd",      },
+       { .name = "v33",        },
+       { .name = "vldo3",      },
+       { .name = "vldo4",      },
+};
+
 static struct of_regulator_match *pfuze_matches;
 
 static int pfuze_parse_regulators_dt(struct pfuze_chip *chip)
@@ -437,6 +486,11 @@ static int pfuze_parse_regulators_dt(struct pfuze_chip *chip)
        }
 
        switch (chip->chip_id) {
+       case PFUZE3001:
+               pfuze_matches = pfuze3001_matches;
+               ret = of_regulator_match(dev, parent, pfuze3001_matches,
+                                        ARRAY_SIZE(pfuze3001_matches));
+               break;
        case PFUZE3000:
                pfuze_matches = pfuze3000_matches;
                ret = of_regulator_match(dev, parent, pfuze3000_matches,
@@ -508,7 +562,8 @@ static int pfuze_identify(struct pfuze_chip *pfuze_chip)
                 */
                dev_info(pfuze_chip->dev, "Assuming misprogrammed ID=0x8");
        } else if ((value & 0x0f) != pfuze_chip->chip_id &&
-                  (value & 0xf0) >> 4 != pfuze_chip->chip_id) {
+                  (value & 0xf0) >> 4 != pfuze_chip->chip_id &&
+                  (value != pfuze_chip->chip_id)) {
                /* device id NOT match with your setting */
                dev_warn(pfuze_chip->dev, "Illegal ID: %x\n", value);
                return -ENODEV;
@@ -588,6 +643,13 @@ static int pfuze100_regulator_probe(struct i2c_client *client,
 
        /* use the right regulators after identify the right device */
        switch (pfuze_chip->chip_id) {
+       case PFUZE3001:
+               pfuze_chip->pfuze_regulators = pfuze3001_regulators;
+               regulator_num = ARRAY_SIZE(pfuze3001_regulators);
+               sw_check_start = PFUZE3001_SW2;
+               sw_check_end = PFUZE3001_SW2;
+               sw_hi = 1 << 3;
+               break;
        case PFUZE3000:
                pfuze_chip->pfuze_regulators = pfuze3000_regulators;
                regulator_num = ARRAY_SIZE(pfuze3000_regulators);
@@ -611,7 +673,8 @@ static int pfuze100_regulator_probe(struct i2c_client *client,
        }
        dev_info(&client->dev, "pfuze%s found.\n",
                (pfuze_chip->chip_id == PFUZE100) ? "100" :
-               ((pfuze_chip->chip_id == PFUZE200) ? "200" : "3000"));
+               (((pfuze_chip->chip_id == PFUZE200) ? "200" :
+               ((pfuze_chip->chip_id == PFUZE3000) ? "3000" : "3001"))));
 
        memcpy(pfuze_chip->regulator_descs, pfuze_chip->pfuze_regulators,
                sizeof(pfuze_chip->regulator_descs));
@@ -636,7 +699,8 @@ static int pfuze100_regulator_probe(struct i2c_client *client,
                if (i >= sw_check_start && i <= sw_check_end) {
                        regmap_read(pfuze_chip->regmap, desc->vsel_reg, &val);
                        if (val & sw_hi) {
-                               if (pfuze_chip->chip_id == PFUZE3000) {
+                               if (pfuze_chip->chip_id == PFUZE3000 ||
+                                       pfuze_chip->chip_id == PFUZE3001) {
                                        desc->volt_table = pfuze3000_sw2hi;
                                        desc->n_voltages = ARRAY_SIZE(pfuze3000_sw2hi);
                                } else {
@@ -675,5 +739,5 @@ static struct i2c_driver pfuze_driver = {
 module_i2c_driver(pfuze_driver);
 
 MODULE_AUTHOR("Robin Gong <b38343@freescale.com>");
-MODULE_DESCRIPTION("Regulator Driver for Freescale PFUZE100/200/3000 PMIC");
+MODULE_DESCRIPTION("Regulator Driver for Freescale PFUZE100/200/3000/3001 PMIC");
 MODULE_LICENSE("GPL v2");

diff --git a/include/linux/regulator/pfuze100.h b/include/linux/regulator/pfuze100.h
index e0ccf46f66cf34ae44296de9410fa107270aff4e..cb5aecd40f07d95478141af180d071e43f53af6e 100644 (file)
--- a/include/linux/regulator/pfuze100.h
+++ b/include/linux/regulator/pfuze100.h
@@ -64,6 +64,17 @@
 #define PFUZE3000_VLDO3                11
 #define PFUZE3000_VLDO4                12
 
+#define PFUZE3001_SW1          0
+#define PFUZE3001_SW2          1
+#define PFUZE3001_SW3          2
+#define PFUZE3001_VSNVS                3
+#define PFUZE3001_VLDO1                4
+#define PFUZE3001_VLDO2                5
+#define PFUZE3001_VCCSD                6
+#define PFUZE3001_V33          7
+#define PFUZE3001_VLDO3                8
+#define PFUZE3001_VLDO4                9
+
 struct regulator_init_data;
 
 struct pfuze_regulator_platform_data {