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Commit 6eaa247a authored by Krzysztof Kozlowski's avatar Krzysztof Kozlowski Committed by Mark Brown
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Input: max77693: Prepare for adding support for Maxim 77843 



Prepare the driver for supporting two devices: Maxim 77693 and 77843:
1. Add table of device ids and store current device type for later
   usage.
2. Differentiate the haptic device configuration.

Signed-off-by: default avatarKrzysztof Kozlowski <k.kozlowski@samsung.com>
Acked-by: default avatarDmitry Torokhov <dmitry.torokhov@gmail.com>
Signed-off-by: default avatarMark Brown <broonie@kernel.org>
parent b3d8ba74

drivers/input/misc/max77693-haptic.c

+34 −7
Original line number Diff line number Diff line
@@ -47,6 +47,8 @@ enum max77693_haptic_pwm_divisor { 
};



struct max77693_haptic {

	enum max77693_types dev_type;



	struct regmap *regmap_pmic;

	struct regmap *regmap_haptic;

	struct device *dev;
@@ -81,16 +83,23 @@ static int max77693_haptic_set_duty_cycle(struct max77693_haptic *haptic) 
static int max77693_haptic_configure(struct max77693_haptic *haptic,

				     bool enable)

{

	unsigned int value;

	unsigned int value, config_reg;

	int error;



	switch (haptic->dev_type) {

	case TYPE_MAX77693:

		value = ((haptic->type << MAX77693_CONFIG2_MODE) |

			(enable << MAX77693_CONFIG2_MEN) |

			(haptic->mode << MAX77693_CONFIG2_HTYP) |

			MAX77693_HAPTIC_PWM_DIVISOR_128);

		config_reg = MAX77693_HAPTIC_REG_CONFIG2;

		break;

	default:

		return -EINVAL;

	}



	error = regmap_write(haptic->regmap_haptic,

			     MAX77693_HAPTIC_REG_CONFIG2, value);

			     config_reg, value);

	if (error) {

		dev_err(haptic->dev,

			"failed to update haptic config: %d\n", error);
@@ -254,12 +263,23 @@ static int max77693_haptic_probe(struct platform_device *pdev) 
		return -ENOMEM;



	haptic->regmap_pmic = max77693->regmap;

	haptic->regmap_haptic = max77693->regmap_haptic;

	haptic->dev = &pdev->dev;

	haptic->type = MAX77693_HAPTIC_LRA;

	haptic->mode = MAX77693_HAPTIC_EXTERNAL_MODE;

	haptic->suspend_state = false;



	/* Variant-specific init */

	haptic->dev_type = platform_get_device_id(pdev)->driver_data;

	switch (haptic->dev_type) {

	case TYPE_MAX77693:

		haptic->regmap_haptic = max77693->regmap_haptic;

		break;

	default:

		dev_err(&pdev->dev, "unsupported device type: %u\n",

			haptic->dev_type);

		return -EINVAL;

	}



	INIT_WORK(&haptic->work, max77693_haptic_play_work);



	/* Get pwm and regulatot for haptic device */
@@ -337,12 +357,19 @@ static int __maybe_unused max77693_haptic_resume(struct device *dev) 
static SIMPLE_DEV_PM_OPS(max77693_haptic_pm_ops,

			 max77693_haptic_suspend, max77693_haptic_resume);



static const struct platform_device_id max77693_haptic_id[] = {

	{ "max77693-haptic", TYPE_MAX77693 },

	{},

};

MODULE_DEVICE_TABLE(platform, max77693_haptic_id);



static struct platform_driver max77693_haptic_driver = {

	.driver		= {

		.name	= "max77693-haptic",

		.pm	= &max77693_haptic_pm_ops,

	},

	.probe		= max77693_haptic_probe,

	.id_table	= max77693_haptic_id,

};

module_platform_driver(max77693_haptic_driver);