1 // SPDX-License-Identifier: GPL-2.0
8  * and 4 programmable non-volatile GPIO pins.
38 		wrlen = DS4510_EEPROM_PAGE_SIZE -  in ds4510_mem_write()
43 			return -1;  in ds4510_mem_write()
50 		count -= wrlen;  in ds4510_mem_write()
68  * nv = 0 - Writes to SEEPROM registers behave like EEPROM
69  * nv = 1 - Writes to SEEPROM registers behave like SRAM
76 		return -1;  in ds4510_see_write()
87  * Write de-assertion of reset signal delay
94 		return -1;  in ds4510_rstdelay_write()
120 		return -1;  in ds4510_pullup_read()
134 		if (i2c_read(chip, DS4510_IO0 - i, 1, &data, 1))  in ds4510_gpio_write()
135 			return -1;  in ds4510_gpio_write()
142 		if (ds4510_mem_write(chip, DS4510_IO0 - i, &data, 1))  in ds4510_gpio_write()
143 			return -1;  in ds4510_gpio_write()
159 		if (i2c_read(chip, DS4510_IO0 - i, 1, &data, 1))  in ds4510_gpio_read()
160 			return -1;  in ds4510_gpio_read()
177 		return -1;  in ds4510_gpio_read_val()
194 		return -1;  in ds4510_info()
198 		return -1;  in ds4510_info()
207 	printf("---------------\n");  in ds4510_info()
211 	if (tmp == -1)  in ds4510_info()
213 	for (i = DS4510_NUM_IO - 1; i >= 0; i--)  in ds4510_info()
219 	if (tmp == -1)  in ds4510_info()
220 		return -1;  in ds4510_info()
221 	for (i = DS4510_NUM_IO - 1; i >= 0; i--)  in ds4510_info()
227 	if (tmp == -1)  in ds4510_info()
228 		return -1;  in ds4510_info()
229 	for (i = DS4510_NUM_IO - 1; i >= 0; i--)  in ds4510_info()
265 	if (!c || !((argc == (c->maxargs)) ||  in do_ds4510()
266 		(((int)c->cmd == DS4510_CMD_DEVICE) &&  in do_ds4510()
267 		 (argc == (c->maxargs - 1))))) {  in do_ds4510()
279 	switch ((int)c->cmd) {  in do_ds4510()
289 		if (tmp == -1)  in do_ds4510()
290 			return -1;  in do_ds4510()
298 		if (tmp == -1)  in do_ds4510()
299 			return -1;  in do_ds4510()
303 		if (tmp == -1)  in do_ds4510()
304 			return -1;  in do_ds4510()
345 		return -1;  in do_ds4510()
355 	"	- show or set current device address\n"
357 	"	- display ds4510 info\n"
359 	"	- set pin low or high-Z\n"
361 	"	- read value of pin\n"
363 	"	- disable/enable pullup on specified pin\n"
365 	"	- make gpio and seeprom writes volatile/non-volatile"
367 	"ds4510 rstdelay 0-3\n"
368 	"	- set reset output delay"
372 	"	- read/write 'cnt' bytes at EEPROM offset 'off'\n"
375 	"	- read/write 'cnt' bytes at SRAM-shadowed EEPROM offset 'off'\n"
378 	"	- read/write 'cnt' bytes at SRAM offset 'off'"