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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: Krzysztof Kozlowski <k.kozlowski@samsung.com>
Acked-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
Signed-off-by: Mark Brown <broonie@kernel.org>
This commit is contained in:
Krzysztof Kozlowski 2015-07-30 10:36:42 +09:00 committed by Mark Brown
parent b3d8ba746b
commit 6eaa247a5b
1 changed files with 34 additions and 7 deletions
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41
drivers/input/misc/max77693-haptic.c
View File

@ -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;
value = ((haptic->type << MAX77693_CONFIG2_MODE) |
(enable << MAX77693_CONFIG2_MEN) |
(haptic->mode << MAX77693_CONFIG2_HTYP) |
MAX77693_HAPTIC_PWM_DIVISOR_128);
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);