From 02b09703e7a411f80e5ec037b3abf14061a61933 Mon Sep 17 00:00:00 2001 From: Chanwoo Choi Date: Wed, 7 Mar 2012 17:02:51 +0900 Subject: [PATCH] mfd: Add platform data for MAX8997 haptic driver MAX8997 device does not support haptic function of it. This patch adds platform data for for MAX8997 haptic driver. Signed-off-by: Donggeun Kim Signed-off-by: Myungjoo Ham Signed-off-by: Kyungmin Park Signed-off-by: Samuel Ortiz --- include/linux/mfd/max8997.h | 53 ++++++++++++++++++++++++++++++++++++- 1 file changed, 52 insertions(+), 1 deletion(-) diff --git a/include/linux/mfd/max8997.h b/include/linux/mfd/max8997.h index fff590521e50..9d8006b4a13a 100644 --- a/include/linux/mfd/max8997.h +++ b/include/linux/mfd/max8997.h @@ -153,6 +153,55 @@ struct max8997_led_platform_data { u8 brightness[2]; }; +enum max8997_haptic_motor_type { + MAX8997_HAPTIC_ERM, + MAX8997_HAPTIC_LRA, +}; + +enum max8997_haptic_pulse_mode { + MAX8997_EXTERNAL_MODE, + MAX8997_INTERNAL_MODE, +}; + +enum max8997_haptic_pwm_divisor { + MAX8997_PWM_DIVISOR_32, + MAX8997_PWM_DIVISOR_64, + MAX8997_PWM_DIVISOR_128, + MAX8997_PWM_DIVISOR_256, +}; + +/* + * max8997_haptic_platform_data + * @pwm_channel_id: channel number of PWM device + * valid for MAX8997_EXTERNAL_MODE + * @pwm_period: period in nano second for PWM device + * valid for MAX8997_EXTERNAL_MODE + * @type: motor type + * @mode: pulse mode + * MAX8997_EXTERNAL_MODE: external PWM device is used to control motor + * MAX8997_INTERNAL_MODE: internal pulse generator is used to control motor + * @pwm_divisor: divisor for external PWM device + * @internal_mode_pattern: internal mode pattern for internal mode + * [0 - 3]: valid pattern number + * @pattern_cycle: the number of cycles of the waveform + * for the internal mode pattern + * [0 - 15]: available cycles + * @pattern_signal_period: period of the waveform for the internal mode pattern + * [0 - 255]: available period + */ +struct max8997_haptic_platform_data { + int pwm_channel_id; + int pwm_period; + + enum max8997_haptic_motor_type type; + enum max8997_haptic_pulse_mode mode; + enum max8997_haptic_pwm_divisor pwm_divisor; + + int internal_mode_pattern; + int pattern_cycle; + int pattern_signal_period; +}; + struct max8997_platform_data { /* IRQ */ int irq_base; @@ -192,7 +241,9 @@ struct max8997_platform_data { /* ---- MUIC ---- */ struct max8997_muic_platform_data *muic_pdata; - /* HAPTIC: Not implemented */ + /* ---- HAPTIC ---- */ + struct max8997_haptic_platform_data *haptic_pdata; + /* RTC: Not implemented */ /* ---- LED ---- */ struct max8997_led_platform_data *led_pdata; -- GitLab