diff options
| -rw-r--r-- | Documentation/devicetree/bindings/regulator/tps65217.txt | 91 | ||||
| -rw-r--r-- | drivers/mfd/tps65217.c | 67 | ||||
| -rw-r--r-- | drivers/regulator/tps65217-regulator.c | 1 | ||||
| -rw-r--r-- | include/linux/mfd/tps65217.h | 3 |
4 files changed, 159 insertions, 3 deletions
diff --git a/Documentation/devicetree/bindings/regulator/tps65217.txt b/Documentation/devicetree/bindings/regulator/tps65217.txt new file mode 100644 index 00000000000..0487e9675ba --- /dev/null +++ b/Documentation/devicetree/bindings/regulator/tps65217.txt @@ -0,0 +1,91 @@ +TPS65217 family of regulators + +Required properties: +- compatible: "ti,tps65217" +- reg: I2C slave address +- regulators: list of regulators provided by this controller, must be named + after their hardware counterparts: dcdc[1-3] and ldo[1-4] +- regulators: This is the list of child nodes that specify the regulator + initialization data for defined regulators. Not all regulators for the given + device need to be present. The definition for each of these nodes is defined + using the standard binding for regulators found at + Documentation/devicetree/bindings/regulator/regulator.txt. + + The valid names for regulators are: + tps65217: dcdc1, dcdc2, dcdc3, ldo1, ldo2, ldo3 and ldo4 + +Each regulator is defined using the standard binding for regulators. + +Example: + + tps: tps@24 { + compatible = "ti,tps65217"; + + regulators { + #address-cells = <1>; + #size-cells = <0>; + + dcdc1_reg: regulator@0 { + reg = <0>; + regulator-compatible = "dcdc1"; + regulator-min-microvolt = <900000>; + regulator-max-microvolt = <1800000>; + regulator-boot-on; + regulator-always-on; + }; + + dcdc2_reg: regulator@1 { + reg = <1>; + regulator-compatible = "dcdc2"; + regulator-min-microvolt = <900000>; + regulator-max-microvolt = <3300000>; + regulator-boot-on; + regulator-always-on; + }; + + dcdc3_reg: regulator@2 { + reg = <2>; + regulator-compatible = "dcdc3"; + regulator-min-microvolt = <900000>; + regulator-max-microvolt = <1500000>; + regulator-boot-on; + regulator-always-on; + }; + + ldo1_reg: regulator@3 { + reg = <3>; + regulator-compatible = "ldo1"; + regulator-min-microvolt = <1000000>; + regulator-max-microvolt = <3300000>; + regulator-boot-on; + regulator-always-on; + }; + + ldo2_reg: regulator@4 { + reg = <4>; + regulator-compatible = "ldo2"; + regulator-min-microvolt = <900000>; + regulator-max-microvolt = <3300000>; + regulator-boot-on; + regulator-always-on; + }; + + ldo3_reg: regulator@5 { + reg = <5>; + regulator-compatible = "ldo3"; + regulator-min-microvolt = <1800000>; + regulator-max-microvolt = <3300000>; + regulator-boot-on; + regulator-always-on; + }; + + ldo4_reg: regulator@6 { + reg = <6>; + regulator-compatible = "ldo4"; + regulator-min-microvolt = <1800000>; + regulator-max-microvolt = <3300000>; + regulator-boot-on; + regulator-always-on; + }; + }; + }; diff --git a/drivers/mfd/tps65217.c b/drivers/mfd/tps65217.c index db194e433c0..61c097a98f5 100644 --- a/drivers/mfd/tps65217.c +++ b/drivers/mfd/tps65217.c @@ -24,6 +24,7 @@ #include <linux/slab.h> #include <linux/regmap.h> #include <linux/err.h> +#include <linux/regulator/of_regulator.h> #include <linux/mfd/core.h> #include <linux/mfd/tps65217.h> @@ -132,6 +133,61 @@ int tps65217_clear_bits(struct tps65217 *tps, unsigned int reg, } EXPORT_SYMBOL_GPL(tps65217_clear_bits); +#ifdef CONFIG_OF +static struct of_regulator_match reg_matches[] = { + { .name = "dcdc1", .driver_data = (void *)TPS65217_DCDC_1 }, + { .name = "dcdc2", .driver_data = (void *)TPS65217_DCDC_2 }, + { .name = "dcdc3", .driver_data = (void *)TPS65217_DCDC_3 }, + { .name = "ldo1", .driver_data = (void *)TPS65217_LDO_1 }, + { .name = "ldo2", .driver_data = (void *)TPS65217_LDO_2 }, + { .name = "ldo3", .driver_data = (void *)TPS65217_LDO_3 }, + { .name = "ldo4", .driver_data = (void *)TPS65217_LDO_4 }, +}; + +static struct tps65217_board *tps65217_parse_dt(struct i2c_client *client) +{ + struct device_node *node = client->dev.of_node; + struct tps65217_board *pdata; + struct device_node *regs; + int count = ARRAY_SIZE(reg_matches); + int ret, i; + + regs = of_find_node_by_name(node, "regulators"); + if (!regs) + return NULL; + + ret = of_regulator_match(&client->dev, regs, reg_matches, count); + of_node_put(regs); + if ((ret < 0) || (ret > count)) + return NULL; + + count = ret; + pdata = devm_kzalloc(&client->dev, count * sizeof(*pdata), GFP_KERNEL); + if (!pdata) + return NULL; + + for (i = 0; i < count; i++) { + if (!reg_matches[i].init_data || !reg_matches[i].of_node) + continue; + + pdata->tps65217_init_data[i] = reg_matches[i].init_data; + pdata->of_node[i] = reg_matches[i].of_node; + } + + return pdata; +} + +static struct of_device_id tps65217_of_match[] = { + { .compatible = "ti,tps65217", }, + { }, +}; +#else +static struct tps65217_board *tps65217_parse_dt(struct i2c_client *client) +{ + return NULL; +} +#endif + static struct regmap_config tps65217_regmap_config = { .reg_bits = 8, .val_bits = 8, @@ -141,10 +197,14 @@ static int __devinit tps65217_probe(struct i2c_client *client, const struct i2c_device_id *ids) { struct tps65217 *tps; + struct regulator_init_data *reg_data; struct tps65217_board *pdata = client->dev.platform_data; int i, ret; unsigned int version; + if (!pdata && client->dev.of_node) + pdata = tps65217_parse_dt(client); + tps = devm_kzalloc(&client->dev, sizeof(*tps), GFP_KERNEL); if (!tps) return -ENOMEM; @@ -182,8 +242,9 @@ static int __devinit tps65217_probe(struct i2c_client *client, } pdev->dev.parent = tps->dev; - platform_device_add_data(pdev, &pdata->tps65217_init_data[i], - sizeof(pdata->tps65217_init_data[i])); + pdev->dev.of_node = pdata->of_node[i]; + reg_data = pdata->tps65217_init_data[i]; + platform_device_add_data(pdev, reg_data, sizeof(*reg_data)); tps->regulator_pdev[i] = pdev; platform_device_add(pdev); @@ -212,6 +273,8 @@ MODULE_DEVICE_TABLE(i2c, tps65217_id_table); static struct i2c_driver tps65217_driver = { .driver = { .name = "tps65217", + .owner = THIS_MODULE, + .of_match_table = of_match_ptr(tps65217_of_match), }, .id_table = tps65217_id_table, .probe = tps65217_probe, diff --git a/drivers/regulator/tps65217-regulator.c b/drivers/regulator/tps65217-regulator.c index f7d0495b003..6caa222af77 100644 --- a/drivers/regulator/tps65217-regulator.c +++ b/drivers/regulator/tps65217-regulator.c @@ -293,6 +293,7 @@ static int __devinit tps65217_regulator_probe(struct platform_device *pdev) tps->info[pdev->id] = info; config.dev = &pdev->dev; + config.of_node = pdev->dev.of_node; config.init_data = pdev->dev.platform_data; config.driver_data = tps; diff --git a/include/linux/mfd/tps65217.h b/include/linux/mfd/tps65217.h index 3a80da103f3..12c06870829 100644 --- a/include/linux/mfd/tps65217.h +++ b/include/linux/mfd/tps65217.h @@ -217,7 +217,8 @@ enum tps65217_regulator_id { * Board data may be used to initialize regulator. */ struct tps65217_board { - struct regulator_init_data *tps65217_init_data; + struct regulator_init_data *tps65217_init_data[TPS65217_NUM_REGULATOR]; + struct device_node *of_node[TPS65217_NUM_REGULATOR]; }; /** |