1 /* SPDX-License-Identifier: GPL-2.0 */
8  * Samsung Platform - GPIO pin configuration helper definitions
23 static inline int samsung_gpio_do_setcfg(struct samsung_gpio_chip *chip,  in samsung_gpio_do_setcfg()  argument
24 					 unsigned int off, unsigned int config)  in samsung_gpio_do_setcfg()  argument
26 	return (chip->config->set_config)(chip, off, config);  in samsung_gpio_do_setcfg()
29 static inline unsigned samsung_gpio_do_getcfg(struct samsung_gpio_chip *chip,  in samsung_gpio_do_getcfg()  argument
30 					      unsigned int off)  in samsung_gpio_do_getcfg()  argument
32 	return (chip->config->get_config)(chip, off);  in samsung_gpio_do_getcfg()
35 static inline int samsung_gpio_do_setpull(struct samsung_gpio_chip *chip,  in samsung_gpio_do_setpull()  argument
36 					  unsigned int off, samsung_gpio_pull_t pull)  in samsung_gpio_do_setpull()  argument
38 	return (chip->config->set_pull)(chip, off, pull);  in samsung_gpio_do_setpull()
41 static inline samsung_gpio_pull_t samsung_gpio_do_getpull(struct samsung_gpio_chip *chip,  in samsung_gpio_do_getpull()  argument
42 							  unsigned int off)  in samsung_gpio_do_getpull()  argument
44 	return chip->config->get_pull(chip, off);  in samsung_gpio_do_getpull()
47 /* Pull-{up,down} resistor controls.
49  * S3C2410,S3C2440 = Pull-UP,
50  * S3C2412,S3C2413 = Pull-Down
51  * S3C6400,S3C6410 = Pull-Both [None,Down,Up,Undef]
52  * S3C2443 = Pull-Both [not same as S3C6400]
56  * s3c24xx_gpio_setpull_1up() - Pull configuration for choice of up or none.
57  * @chip: The gpio chip that is being configured.
58  * @off: The offset for the GPIO being configured.
62  * bit configuring the presence of a pull-up resistor.
64 extern int s3c24xx_gpio_setpull_1up(struct samsung_gpio_chip *chip,
65 				    unsigned int off, samsung_gpio_pull_t pull);
68  * s3c24xx_gpio_setpull_1down() - Pull configuration for choice of down or none
69  * @chip: The gpio chip that is being configured
70  * @off: The offset for the GPIO being configured
74  * bit configuring the presence of a pull-down resistor.
76 extern int s3c24xx_gpio_setpull_1down(struct samsung_gpio_chip *chip,
77 				      unsigned int off, samsung_gpio_pull_t pull);
80  * samsung_gpio_setpull_upown() - Pull configuration for choice of up,
83  * @chip: The gpio chip that is being configured.
84  * @off: The offset for the GPIO being configured.
91  *	01 = Pull-up resistor connected
92  *	10 = Pull-down resistor connected
94 extern int samsung_gpio_setpull_updown(struct samsung_gpio_chip *chip,
95 				       unsigned int off, samsung_gpio_pull_t pull);
98  * samsung_gpio_getpull_updown() - Get configuration for choice of up,
101  * @chip: The gpio chip that the GPIO pin belongs to
102  * @off: The offset to the pin to get the configuration of.
104  * This helper function reads the state of the pull-{up,down} resistor
107 extern samsung_gpio_pull_t samsung_gpio_getpull_updown(struct samsung_gpio_chip *chip,
108 						       unsigned int off);
111  * s3c24xx_gpio_getpull_1up() - Get configuration for choice of up or none
112  * @chip: The gpio chip that the GPIO pin belongs to
113  * @off: The offset to the pin to get the configuration of.
115  * This helper function reads the state of the pull-up resistor for the
118 extern samsung_gpio_pull_t s3c24xx_gpio_getpull_1up(struct samsung_gpio_chip *chip,
119 						    unsigned int off);
122  * s3c24xx_gpio_getpull_1down() - Get configuration for choice of down or none
123  * @chip: The gpio chip that the GPIO pin belongs to
124  * @off: The offset to the pin to get the configuration of.
126  * This helper function reads the state of the pull-down resistor for the
129 extern samsung_gpio_pull_t s3c24xx_gpio_getpull_1down(struct samsung_gpio_chip *chip,
130 						      unsigned int off);
133  * s3c2443_gpio_setpull() - Pull configuration for s3c2443.
134  * @chip: The gpio chip that is being configured.
135  * @off: The offset for the GPIO being configured.
141  *	00 = Pull-up resistor connected
142  *	10 = Pull-down resistor connected
145 extern int s3c2443_gpio_setpull(struct samsung_gpio_chip *chip,
146 				unsigned int off, samsung_gpio_pull_t pull);
149  * s3c2443_gpio_getpull() - Get configuration for s3c2443 pull resistors
150  * @chip: The gpio chip that the GPIO pin belongs to.
151  * @off: The offset to the pin to get the configuration of.
153  * This helper function reads the state of the pull-{up,down} resistor for the
156 extern samsung_gpio_pull_t s3c2443_gpio_getpull(struct samsung_gpio_chip *chip,
157 						unsigned int off);