Orange Pi5 kernel

^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300   1) // SPDX-License-Identifier: GPL-2.0-only
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300   2) /*
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300   3)  * twl6040-vibra.c - TWL6040 Vibrator driver
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300   4)  *
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300   5)  * Author:      Jorge Eduardo Candelaria <jorge.candelaria@ti.com>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300   6)  * Author:      Misael Lopez Cruz <misael.lopez@ti.com>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300   7)  *
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300   8)  * Copyright:   (C) 2011 Texas Instruments, Inc.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300   9)  *
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  10)  * Based on twl4030-vibra.c by Henrik Saari <henrik.saari@nokia.com>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  11)  *				Felipe Balbi <felipe.balbi@nokia.com>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  12)  *				Jari Vanhala <ext-javi.vanhala@nokia.com>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  13)  */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  14) #include <linux/module.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  15) #include <linux/platform_device.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  16) #include <linux/of.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  17) #include <linux/workqueue.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  18) #include <linux/input.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  19) #include <linux/mfd/twl6040.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  20) #include <linux/slab.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  21) #include <linux/delay.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  22) #include <linux/regulator/consumer.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  23) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  24) #define EFFECT_DIR_180_DEG	0x8000
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  25) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  26) /* Recommended modulation index 85% */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  27) #define TWL6040_VIBRA_MOD	85
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  28) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  29) #define TWL6040_NUM_SUPPLIES 2
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  30) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  31) struct vibra_info {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  32) 	struct device *dev;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  33) 	struct input_dev *input_dev;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  34) 	struct work_struct play_work;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  35) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  36) 	int irq;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  37) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  38) 	bool enabled;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  39) 	int weak_speed;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  40) 	int strong_speed;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  41) 	int direction;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  42) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  43) 	unsigned int vibldrv_res;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  44) 	unsigned int vibrdrv_res;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  45) 	unsigned int viblmotor_res;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  46) 	unsigned int vibrmotor_res;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  47) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  48) 	struct regulator_bulk_data supplies[TWL6040_NUM_SUPPLIES];
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  49) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  50) 	struct twl6040 *twl6040;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  51) };
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  52) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  53) static irqreturn_t twl6040_vib_irq_handler(int irq, void *data)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  54) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  55) 	struct vibra_info *info = data;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  56) 	struct twl6040 *twl6040 = info->twl6040;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  57) 	u8 status;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  58) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  59) 	status = twl6040_reg_read(twl6040, TWL6040_REG_STATUS);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  60) 	if (status & TWL6040_VIBLOCDET) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  61) 		dev_warn(info->dev, "Left Vibrator overcurrent detected\n");
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  62) 		twl6040_clear_bits(twl6040, TWL6040_REG_VIBCTLL,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  63) 				   TWL6040_VIBENA);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  64) 	}
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  65) 	if (status & TWL6040_VIBROCDET) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  66) 		dev_warn(info->dev, "Right Vibrator overcurrent detected\n");
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  67) 		twl6040_clear_bits(twl6040, TWL6040_REG_VIBCTLR,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  68) 				   TWL6040_VIBENA);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  69) 	}
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  70) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  71) 	return IRQ_HANDLED;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  72) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  73) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  74) static void twl6040_vibra_enable(struct vibra_info *info)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  75) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  76) 	struct twl6040 *twl6040 = info->twl6040;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  77) 	int ret;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  78) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  79) 	ret = regulator_bulk_enable(ARRAY_SIZE(info->supplies), info->supplies);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  80) 	if (ret) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  81) 		dev_err(info->dev, "failed to enable regulators %d\n", ret);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  82) 		return;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  83) 	}
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  84) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  85) 	twl6040_power(info->twl6040, 1);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  86) 	if (twl6040_get_revid(twl6040) <= TWL6040_REV_ES1_1) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  87) 		/*
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  88) 		 * ERRATA: Disable overcurrent protection for at least
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  89) 		 * 3ms when enabling vibrator drivers to avoid false
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  90) 		 * overcurrent detection
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  91) 		 */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  92) 		twl6040_reg_write(twl6040, TWL6040_REG_VIBCTLL,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  93) 				  TWL6040_VIBENA | TWL6040_VIBCTRL);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  94) 		twl6040_reg_write(twl6040, TWL6040_REG_VIBCTLR,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  95) 				  TWL6040_VIBENA | TWL6040_VIBCTRL);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  96) 		usleep_range(3000, 3500);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  97) 	}
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  98) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  99) 	twl6040_reg_write(twl6040, TWL6040_REG_VIBCTLL,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 100) 			  TWL6040_VIBENA);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 101) 	twl6040_reg_write(twl6040, TWL6040_REG_VIBCTLR,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 102) 			  TWL6040_VIBENA);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 103) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 104) 	info->enabled = true;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 105) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 106) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 107) static void twl6040_vibra_disable(struct vibra_info *info)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 108) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 109) 	struct twl6040 *twl6040 = info->twl6040;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 110) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 111) 	twl6040_reg_write(twl6040, TWL6040_REG_VIBCTLL, 0x00);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 112) 	twl6040_reg_write(twl6040, TWL6040_REG_VIBCTLR, 0x00);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 113) 	twl6040_power(info->twl6040, 0);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 114) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 115) 	regulator_bulk_disable(ARRAY_SIZE(info->supplies), info->supplies);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 116) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 117) 	info->enabled = false;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 118) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 119) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 120) static u8 twl6040_vibra_code(int vddvib, int vibdrv_res, int motor_res,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 121) 			     int speed, int direction)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 122) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 123) 	int vpk, max_code;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 124) 	u8 vibdat;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 125) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 126) 	/* output swing */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 127) 	vpk = (vddvib * motor_res * TWL6040_VIBRA_MOD) /
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 128) 		(100 * (vibdrv_res + motor_res));
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 129) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 130) 	/* 50mV per VIBDAT code step */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 131) 	max_code = vpk / 50;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 132) 	if (max_code > TWL6040_VIBDAT_MAX)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 133) 		max_code = TWL6040_VIBDAT_MAX;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 134) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 135) 	/* scale speed to max allowed code */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 136) 	vibdat = (u8)((speed * max_code) / USHRT_MAX);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 137) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 138) 	/* 2's complement for direction > 180 degrees */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 139) 	vibdat *= direction;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 140) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 141) 	return vibdat;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 142) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 143) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 144) static void twl6040_vibra_set_effect(struct vibra_info *info)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 145) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 146) 	struct twl6040 *twl6040 = info->twl6040;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 147) 	u8 vibdatl, vibdatr;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 148) 	int volt;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 149) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 150) 	/* weak motor */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 151) 	volt = regulator_get_voltage(info->supplies[0].consumer) / 1000;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 152) 	vibdatl = twl6040_vibra_code(volt, info->vibldrv_res,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 153) 				     info->viblmotor_res,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 154) 				     info->weak_speed, info->direction);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 155) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 156) 	/* strong motor */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 157) 	volt = regulator_get_voltage(info->supplies[1].consumer) / 1000;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 158) 	vibdatr = twl6040_vibra_code(volt, info->vibrdrv_res,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 159) 				     info->vibrmotor_res,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 160) 				     info->strong_speed, info->direction);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 161) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 162) 	twl6040_reg_write(twl6040, TWL6040_REG_VIBDATL, vibdatl);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 163) 	twl6040_reg_write(twl6040, TWL6040_REG_VIBDATR, vibdatr);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 164) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 165) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 166) static void vibra_play_work(struct work_struct *work)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 167) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 168) 	struct vibra_info *info = container_of(work,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 169) 				struct vibra_info, play_work);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 170) 	int ret;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 171) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 172) 	/* Do not allow effect, while the routing is set to use audio */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 173) 	ret = twl6040_get_vibralr_status(info->twl6040);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 174) 	if (ret & TWL6040_VIBSEL) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 175) 		dev_info(info->dev, "Vibra is configured for audio\n");
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 176) 		return;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 177) 	}
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 178) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 179) 	if (info->weak_speed || info->strong_speed) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 180) 		if (!info->enabled)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 181) 			twl6040_vibra_enable(info);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 182) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 183) 		twl6040_vibra_set_effect(info);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 184) 	} else if (info->enabled)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 185) 		twl6040_vibra_disable(info);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 186) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 187) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 188) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 189) static int vibra_play(struct input_dev *input, void *data,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 190) 		      struct ff_effect *effect)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 191) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 192) 	struct vibra_info *info = input_get_drvdata(input);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 193) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 194) 	info->weak_speed = effect->u.rumble.weak_magnitude;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 195) 	info->strong_speed = effect->u.rumble.strong_magnitude;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 196) 	info->direction = effect->direction < EFFECT_DIR_180_DEG ? 1 : -1;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 197) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 198) 	schedule_work(&info->play_work);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 199) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 200) 	return 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 201) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 202) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 203) static void twl6040_vibra_close(struct input_dev *input)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 204) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 205) 	struct vibra_info *info = input_get_drvdata(input);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 206) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 207) 	cancel_work_sync(&info->play_work);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 208) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 209) 	if (info->enabled)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 210) 		twl6040_vibra_disable(info);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 211) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 212) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 213) static int __maybe_unused twl6040_vibra_suspend(struct device *dev)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 214) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 215) 	struct platform_device *pdev = to_platform_device(dev);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 216) 	struct vibra_info *info = platform_get_drvdata(pdev);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 217) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 218) 	cancel_work_sync(&info->play_work);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 219) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 220) 	if (info->enabled)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 221) 		twl6040_vibra_disable(info);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 222) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 223) 	return 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 224) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 225) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 226) static SIMPLE_DEV_PM_OPS(twl6040_vibra_pm_ops, twl6040_vibra_suspend, NULL);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 227) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 228) static int twl6040_vibra_probe(struct platform_device *pdev)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 229) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 230) 	struct device *twl6040_core_dev = pdev->dev.parent;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 231) 	struct device_node *twl6040_core_node;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 232) 	struct vibra_info *info;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 233) 	int vddvibl_uV = 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 234) 	int vddvibr_uV = 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 235) 	int error;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 236) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 237) 	twl6040_core_node = of_get_child_by_name(twl6040_core_dev->of_node,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 238) 						 "vibra");
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 239) 	if (!twl6040_core_node) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 240) 		dev_err(&pdev->dev, "parent of node is missing?\n");
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 241) 		return -EINVAL;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 242) 	}
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 243) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 244) 	info = devm_kzalloc(&pdev->dev, sizeof(*info), GFP_KERNEL);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 245) 	if (!info) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 246) 		of_node_put(twl6040_core_node);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 247) 		dev_err(&pdev->dev, "couldn't allocate memory\n");
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 248) 		return -ENOMEM;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 249) 	}
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 250) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 251) 	info->dev = &pdev->dev;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 252) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 253) 	info->twl6040 = dev_get_drvdata(pdev->dev.parent);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 254) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 255) 	of_property_read_u32(twl6040_core_node, "ti,vibldrv-res",
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 256) 			     &info->vibldrv_res);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 257) 	of_property_read_u32(twl6040_core_node, "ti,vibrdrv-res",
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 258) 			     &info->vibrdrv_res);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 259) 	of_property_read_u32(twl6040_core_node, "ti,viblmotor-res",
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 260) 			     &info->viblmotor_res);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 261) 	of_property_read_u32(twl6040_core_node, "ti,vibrmotor-res",
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 262) 			     &info->vibrmotor_res);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 263) 	of_property_read_u32(twl6040_core_node, "ti,vddvibl-uV", &vddvibl_uV);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 264) 	of_property_read_u32(twl6040_core_node, "ti,vddvibr-uV", &vddvibr_uV);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 265) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 266) 	of_node_put(twl6040_core_node);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 267) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 268) 	if ((!info->vibldrv_res && !info->viblmotor_res) ||
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 269) 	    (!info->vibrdrv_res && !info->vibrmotor_res)) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 270) 		dev_err(info->dev, "invalid vibra driver/motor resistance\n");
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 271) 		return -EINVAL;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 272) 	}
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 273) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 274) 	info->irq = platform_get_irq(pdev, 0);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 275) 	if (info->irq < 0)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 276) 		return -EINVAL;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 277) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 278) 	error = devm_request_threaded_irq(&pdev->dev, info->irq, NULL,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 279) 					  twl6040_vib_irq_handler,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 280) 					  IRQF_ONESHOT,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 281) 					  "twl6040_irq_vib", info);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 282) 	if (error) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 283) 		dev_err(info->dev, "VIB IRQ request failed: %d\n", error);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 284) 		return error;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 285) 	}
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 286) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 287) 	info->supplies[0].supply = "vddvibl";
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 288) 	info->supplies[1].supply = "vddvibr";
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 289) 	/*
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 290) 	 * When booted with Device tree the regulators are attached to the
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 291) 	 * parent device (twl6040 MFD core)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 292) 	 */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 293) 	error = devm_regulator_bulk_get(twl6040_core_dev,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 294) 					ARRAY_SIZE(info->supplies),
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 295) 					info->supplies);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 296) 	if (error) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 297) 		dev_err(info->dev, "couldn't get regulators %d\n", error);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 298) 		return error;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 299) 	}
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 300) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 301) 	if (vddvibl_uV) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 302) 		error = regulator_set_voltage(info->supplies[0].consumer,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 303) 					      vddvibl_uV, vddvibl_uV);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 304) 		if (error) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 305) 			dev_err(info->dev, "failed to set VDDVIBL volt %d\n",
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 306) 				error);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 307) 			return error;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 308) 		}
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 309) 	}
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 310) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 311) 	if (vddvibr_uV) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 312) 		error = regulator_set_voltage(info->supplies[1].consumer,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 313) 					      vddvibr_uV, vddvibr_uV);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 314) 		if (error) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 315) 			dev_err(info->dev, "failed to set VDDVIBR volt %d\n",
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 316) 				error);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 317) 			return error;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 318) 		}
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 319) 	}
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 320) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 321) 	INIT_WORK(&info->play_work, vibra_play_work);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 322) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 323) 	info->input_dev = devm_input_allocate_device(&pdev->dev);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 324) 	if (!info->input_dev) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 325) 		dev_err(info->dev, "couldn't allocate input device\n");
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 326) 		return -ENOMEM;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 327) 	}
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 328) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 329) 	input_set_drvdata(info->input_dev, info);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 330) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 331) 	info->input_dev->name = "twl6040:vibrator";
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 332) 	info->input_dev->id.version = 1;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 333) 	info->input_dev->close = twl6040_vibra_close;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 334) 	__set_bit(FF_RUMBLE, info->input_dev->ffbit);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 335) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 336) 	error = input_ff_create_memless(info->input_dev, NULL, vibra_play);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 337) 	if (error) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 338) 		dev_err(info->dev, "couldn't register vibrator to FF\n");
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 339) 		return error;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 340) 	}
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 341) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 342) 	error = input_register_device(info->input_dev);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 343) 	if (error) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 344) 		dev_err(info->dev, "couldn't register input device\n");
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 345) 		return error;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 346) 	}
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 347) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 348) 	platform_set_drvdata(pdev, info);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 349) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 350) 	return 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 351) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 352) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 353) static struct platform_driver twl6040_vibra_driver = {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 354) 	.probe		= twl6040_vibra_probe,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 355) 	.driver		= {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 356) 		.name	= "twl6040-vibra",
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 357) 		.pm	= &twl6040_vibra_pm_ops,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 358) 	},
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 359) };
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 360) module_platform_driver(twl6040_vibra_driver);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 361) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 362) MODULE_ALIAS("platform:twl6040-vibra");
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 363) MODULE_DESCRIPTION("TWL6040 Vibra driver");
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 364) MODULE_LICENSE("GPL");
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 365) MODULE_AUTHOR("Jorge Eduardo Candelaria <jorge.candelaria@ti.com>");
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 366) MODULE_AUTHOR("Misael Lopez Cruz <misael.lopez@ti.com>");