1 // SPDX-License-Identifier: GPL-2.0-only
26 static int palmas_gpio_get(struct gpio_chip *gc, unsigned offset)  in palmas_gpio_get()  argument
29 	struct palmas *palmas = pg->palmas;  in palmas_gpio_get()
32 	unsigned int reg;  in palmas_gpio_get()  local
33 	int gpio16 = (offset/8);  in palmas_gpio_get()
35 	offset %= 8;  in palmas_gpio_get()
36 	reg = (gpio16) ? PALMAS_GPIO_DATA_DIR2 : PALMAS_GPIO_DATA_DIR;  in palmas_gpio_get()
38 	ret = palmas_read(palmas, PALMAS_GPIO_BASE, reg, &val);  in palmas_gpio_get()
40 		dev_err(gc->parent, "Reg 0x%02x read failed, %d\n", reg, ret);  in palmas_gpio_get()
44 	if (val & BIT(offset))  in palmas_gpio_get()
45 		reg = (gpio16) ? PALMAS_GPIO_DATA_OUT2 : PALMAS_GPIO_DATA_OUT;  in palmas_gpio_get()
47 		reg = (gpio16) ? PALMAS_GPIO_DATA_IN2 : PALMAS_GPIO_DATA_IN;  in palmas_gpio_get()
49 	ret = palmas_read(palmas, PALMAS_GPIO_BASE, reg, &val);  in palmas_gpio_get()
51 		dev_err(gc->parent, "Reg 0x%02x read failed, %d\n", reg, ret);  in palmas_gpio_get()
54 	return !!(val & BIT(offset));  in palmas_gpio_get()
57 static void palmas_gpio_set(struct gpio_chip *gc, unsigned offset,  in palmas_gpio_set()  argument
61 	struct palmas *palmas = pg->palmas;  in palmas_gpio_set()
63 	unsigned int reg;  in palmas_gpio_set()  local
64 	int gpio16 = (offset/8);  in palmas_gpio_set()
66 	offset %= 8;  in palmas_gpio_set()
68 		reg = (value) ?  in palmas_gpio_set()
71 		reg = (value) ?  in palmas_gpio_set()
74 	ret = palmas_write(palmas, PALMAS_GPIO_BASE, reg, BIT(offset));  in palmas_gpio_set()
76 		dev_err(gc->parent, "Reg 0x%02x write failed, %d\n", reg, ret);  in palmas_gpio_set()
79 static int palmas_gpio_output(struct gpio_chip *gc, unsigned offset,  in palmas_gpio_output()  argument
83 	struct palmas *palmas = pg->palmas;  in palmas_gpio_output()
85 	unsigned int reg;  in palmas_gpio_output()  local
86 	int gpio16 = (offset/8);  in palmas_gpio_output()
88 	offset %= 8;  in palmas_gpio_output()
89 	reg = (gpio16) ? PALMAS_GPIO_DATA_DIR2 : PALMAS_GPIO_DATA_DIR;  in palmas_gpio_output()
92 	palmas_gpio_set(gc, offset, value);  in palmas_gpio_output()
94 	ret = palmas_update_bits(palmas, PALMAS_GPIO_BASE, reg,  in palmas_gpio_output()
95 				BIT(offset), BIT(offset));  in palmas_gpio_output()
97 		dev_err(gc->parent, "Reg 0x%02x update failed, %d\n", reg,  in palmas_gpio_output()
102 static int palmas_gpio_input(struct gpio_chip *gc, unsigned offset)  in palmas_gpio_input()  argument
105 	struct palmas *palmas = pg->palmas;  in palmas_gpio_input()
107 	unsigned int reg;  in palmas_gpio_input()  local
108 	int gpio16 = (offset/8);  in palmas_gpio_input()
110 	offset %= 8;  in palmas_gpio_input()
111 	reg = (gpio16) ? PALMAS_GPIO_DATA_DIR2 : PALMAS_GPIO_DATA_DIR;  in palmas_gpio_input()
113 	ret = palmas_update_bits(palmas, PALMAS_GPIO_BASE, reg, BIT(offset), 0);  in palmas_gpio_input()
115 		dev_err(gc->parent, "Reg 0x%02x update failed, %d\n", reg,  in palmas_gpio_input()
120 static int palmas_gpio_to_irq(struct gpio_chip *gc, unsigned offset)  in palmas_gpio_to_irq()  argument
123 	struct palmas *palmas = pg->palmas;  in palmas_gpio_to_irq()
125 	return palmas_irq_get_virq(palmas, PALMAS_GPIO_0_IRQ + offset);  in palmas_gpio_to_irq()
137 	{ .compatible = "ti,palmas-gpio", .data = &palmas_dev_data,},
138 	{ .compatible = "ti,tps65913-gpio", .data = &palmas_dev_data,},
139 	{ .compatible = "ti,tps65914-gpio", .data = &palmas_dev_data,},
140 	{ .compatible = "ti,tps80036-gpio", .data = &tps80036_dev_data,},
146 	struct palmas *palmas = dev_get_drvdata(pdev->dev.parent);  in palmas_gpio_probe()
152 	dev_data = of_device_get_match_data(&pdev->dev);  in palmas_gpio_probe()
156 	palmas_gpio = devm_kzalloc(&pdev->dev,  in palmas_gpio_probe()
159 		return -ENOMEM;  in palmas_gpio_probe()
161 	palmas_gpio->palmas = palmas;  in palmas_gpio_probe()
162 	palmas_gpio->gpio_chip.owner = THIS_MODULE;  in palmas_gpio_probe()
163 	palmas_gpio->gpio_chip.label = dev_name(&pdev->dev);  in palmas_gpio_probe()
164 	palmas_gpio->gpio_chip.ngpio = dev_data->ngpio;  in palmas_gpio_probe()
165 	palmas_gpio->gpio_chip.can_sleep = true;  in palmas_gpio_probe()
166 	palmas_gpio->gpio_chip.direction_input = palmas_gpio_input;  in palmas_gpio_probe()
167 	palmas_gpio->gpio_chip.direction_output = palmas_gpio_output;  in palmas_gpio_probe()
168 	palmas_gpio->gpio_chip.to_irq = palmas_gpio_to_irq;  in palmas_gpio_probe()
169 	palmas_gpio->gpio_chip.set	= palmas_gpio_set;  in palmas_gpio_probe()
170 	palmas_gpio->gpio_chip.get	= palmas_gpio_get;  in palmas_gpio_probe()
171 	palmas_gpio->gpio_chip.parent = &pdev->dev;  in palmas_gpio_probe()
173 	palmas_pdata = dev_get_platdata(palmas->dev);  in palmas_gpio_probe()
174 	if (palmas_pdata && palmas_pdata->gpio_base)  in palmas_gpio_probe()
175 		palmas_gpio->gpio_chip.base = palmas_pdata->gpio_base;  in palmas_gpio_probe()
177 		palmas_gpio->gpio_chip.base = -1;  in palmas_gpio_probe()
179 	ret = devm_gpiochip_add_data(&pdev->dev, &palmas_gpio->gpio_chip,  in palmas_gpio_probe()
182 		dev_err(&pdev->dev, "Could not register gpiochip, %d\n", ret);  in palmas_gpio_probe()
190 	.driver.name	= "palmas-gpio",