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// SPDX-License-Identifier: GPL-2.0/* * GPIO driver for TI TPS65912x PMICs * * Copyright (C) 2015 Texas Instruments Incorporated - http://www.ti.com/ * Andrew F. Davis <afd@ti.com> * * Based on the Arizona GPIO driver and the previous TPS65912 driver by * Margarita Olaya Cabrera <magi@slimlogic.co.uk> */struct tps65912_gpio { struct gpio_chip gpio_chip; struct tps65912 *tps;};static int tps65912_gpio_get_direction(struct gpio_chip *gc, unsigned offset){ struct tps65912_gpio *gpio = gpiochip_get_data(gc); int ret, val; ret = regmap_read(gpio->tps->regmap, TPS65912_GPIO1 + offset, &val); if (ret) return ret; if (val & GPIO_CFG_MASK) return 0; else return 1;}static int tps65912_gpio_direction_input(struct gpio_chip *gc, unsigned offset){ struct tps65912_gpio *gpio = gpiochip_get_data(gc); return regmap_update_bits(gpio->tps->regmap, TPS65912_GPIO1 + offset, GPIO_CFG_MASK, 0);}static int tps65912_gpio_direction_output(struct gpio_chip *gc, unsigned offset, int value){ struct tps65912_gpio *gpio = gpiochip_get_data(gc); /* Set the initial value */ regmap_update_bits(gpio->tps->regmap, TPS65912_GPIO1 + offset, GPIO_SET_MASK, value ? GPIO_SET_MASK : 0); return regmap_update_bits(gpio->tps->regmap, TPS65912_GPIO1 + offset, GPIO_CFG_MASK, GPIO_CFG_MASK);}static int tps65912_gpio_get(struct gpio_chip *gc, unsigned offset){ struct tps65912_gpio *gpio = gpiochip_get_data(gc); int ret, val; ret = regmap_read(gpio->tps->regmap, TPS65912_GPIO1 + offset, &val); if (ret) return ret; if (val & GPIO_STS_MASK) return 1; return 0;}static void tps65912_gpio_set(struct gpio_chip *gc, unsigned offset, int value){ struct tps65912_gpio *gpio = gpiochip_get_data(gc); regmap_update_bits(gpio->tps->regmap, TPS65912_GPIO1 + offset, GPIO_SET_MASK, value ? GPIO_SET_MASK : 0);}static const struct gpio_chip template_chip = { .label = "tps65912-gpio", .owner = THIS_MODULE, .get_direction = tps65912_gpio_get_direction, .direction_input = tps65912_gpio_direction_input, .direction_output = tps65912_gpio_direction_output, .get = tps65912_gpio_get, .set = tps65912_gpio_set,