regulator: mp886x: implement set_ramp_delay (0eddcf02) · Commits · 戴 / test

drivers/regulator/mp886x.c

+64 −3

Original line number	Diff line number	Diff line
		@@ -18,18 +18,48 @@
		#define MP886X_V_BOOT (1 << 7)
		#define MP886X_SYSCNTLREG1 0x01
		#define MP886X_MODE (1 << 0)
		#define MP886X_SLEW_SHIFT 3
		#define MP886X_SLEW_MASK (0x7 << MP886X_SLEW_SHIFT)
		#define MP886X_GO (1 << 6)
		#define MP886X_EN (1 << 7)

		struct mp886x_cfg_info {
		const struct regulator_ops *rops;
		const int slew_rates[8];
		};

		struct mp886x_device_info {
		struct device *dev;
		struct regulator_desc desc;
		struct regulator_init_data *regulator;
		struct gpio_desc *en_gpio;
		const struct mp886x_cfg_info *ci;
		u32 r[2];
		unsigned int sel;
		};

		static int mp886x_set_ramp(struct regulator_dev *rdev, int ramp)
		{
		struct mp886x_device_info *di = rdev_get_drvdata(rdev);
		const struct mp886x_cfg_info *ci = di->ci;
		int reg = -1, i;

		for (i = 0; i < ARRAY_SIZE(ci->slew_rates); i++) {
		if (ramp <= ci->slew_rates[i])
		reg = i;
		else
		break;
		}

		if (reg < 0) {
		dev_err(di->dev, "unsupported ramp value %d\n", ramp);
		return -EINVAL;
		}

		return regmap_update_bits(rdev->regmap, MP886X_SYSCNTLREG1,
		MP886X_SLEW_MASK, reg << MP886X_SLEW_SHIFT);
		}

		static int mp886x_set_mode(struct regulator_dev *rdev, unsigned int mode)
		{
		switch (mode) {
		@@ -117,6 +147,21 @@ static const struct regulator_ops mp8869_regulator_ops = {
		.is_enabled = regulator_is_enabled_regmap,
		.set_mode = mp886x_set_mode,
		.get_mode = mp886x_get_mode,
		.set_ramp_delay = mp886x_set_ramp,
		};

		static const struct mp886x_cfg_info mp8869_ci = {
		.rops = &mp8869_regulator_ops,
		.slew_rates = {
		40000,
		30000,
		20000,
		10000,
		5000,
		2500,
		1250,
		625,
		},
		};

		static int mp8867_set_voltage_sel(struct regulator_dev *rdev, unsigned int sel)
		@@ -173,6 +218,21 @@ static const struct regulator_ops mp8867_regulator_ops = {
		.is_enabled = regulator_is_enabled_regmap,
		.set_mode = mp886x_set_mode,
		.get_mode = mp886x_get_mode,
		.set_ramp_delay = mp886x_set_ramp,
		};

		static const struct mp886x_cfg_info mp8867_ci = {
		.rops = &mp8867_regulator_ops,
		.slew_rates = {
		64000,
		32000,
		16000,
		8000,
		4000,
		2000,
		1000,
		500,
		},
		};

		static int mp886x_regulator_register(struct mp886x_device_info *di,
		@@ -183,7 +243,7 @@ static int mp886x_regulator_register(struct mp886x_device_info *di,

		rdesc->name = "mp886x-reg";
		rdesc->supply_name = "vin";
		rdesc->ops = of_device_get_match_data(di->dev);
		rdesc->ops = di->ci->rops;
		rdesc->type = REGULATOR_VOLTAGE;
		rdesc->n_voltages = 128;
		rdesc->enable_reg = MP886X_SYSCNTLREG1;
		@@ -234,6 +294,7 @@ static int mp886x_i2c_probe(struct i2c_client *client)
		if (IS_ERR(di->en_gpio))
		return PTR_ERR(di->en_gpio);

		di->ci = of_device_get_match_data(dev);
		di->dev = dev;

		regmap = devm_regmap_init_i2c(client, &mp886x_regmap_config);
		@@ -258,11 +319,11 @@ static int mp886x_i2c_probe(struct i2c_client *client)
		static const struct of_device_id mp886x_dt_ids[] = {
		{
		.compatible = "mps,mp8867",
		.data = &mp8867_regulator_ops
		.data = &mp8867_ci
		},
		{
		.compatible = "mps,mp8869",
		.data = &mp8869_regulator_ops
		.data = &mp8869_ci
		},
		{ }
		};

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