diff options
| author | Krzysztof Kozlowski <k.kozlowski@samsung.com> | 2015-07-30 04:36:42 +0300 |
|---|---|---|
| committer | Mark Brown <broonie@kernel.org> | 2015-08-07 16:57:25 +0300 |
| commit | 6eaa247a5bab775e45a74b52c17bf8bc37fd5f6f (patch) | |
| tree | 9cb1ba23aab458223295b4290c75e930c5397374 /drivers/input/misc/max77693-haptic.c | |
| parent | b3d8ba746b5109dc890e7480db5d014d19ae6a05 (diff) | |
| download | linux-6eaa247a5bab775e45a74b52c17bf8bc37fd5f6f.tar.xz | |
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>
Diffstat (limited to 'drivers/input/misc/max77693-haptic.c')
| -rw-r--r-- | drivers/input/misc/max77693-haptic.c | 41 |
1 files changed, 34 insertions, 7 deletions
diff --git a/drivers/input/misc/max77693-haptic.c b/drivers/input/misc/max77693-haptic.c index 8dc43c1ebf0e..4c0f67ab66d9 100644 --- a/drivers/input/misc/max77693-haptic.c +++ b/drivers/input/misc/max77693-haptic.c @@ -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); |