drivers/gpio/tca642x.c

20  * MA 02111-1307 USA
58 		ret = -1;  in tca642x_reg_write()
80 		ret = -1;  in tca642x_reg_read()
92  * Set output value of IO pins in 'reg_bit' to corresponding value in 'data'
104  * Set read polarity of IO pins in 'reg_bit' to corresponding value in 'data'
117  * 0 = output, 1 = input
136 		return -1;  in tca642x_get_val()
181 			return -1;  in tca642x_info()
183 		for (j = 7; j >= 0; j--)  in tca642x_info()
189 			return -1;  in tca642x_info()
191 		for (j = 7; j >= 0; j--)  in tca642x_info()
197 			return -1;  in tca642x_info()
199 		for (j = 7; j >= 0; j--)  in tca642x_info()
205 			return -1;  in tca642x_info()
207 		for (j = 7; j >= 0; j--)  in tca642x_info()
217 	U_BOOT_CMD_MKENT(output, 4, 0, (void *)TCA642X_CMD_OUTPUT, "", ""),
219 	U_BOOT_CMD_MKENT(invert, 4, 0, (void *)TCA642X_CMD_INVERT, "", ""),
237 	    !((argc == (c->maxargs)) ||  in do_tca642x()
238 	    (((int)c->cmd == TCA642X_CMD_DEVICE) &&  in do_tca642x()
239 	    (argc == (c->maxargs - 1))))) {  in do_tca642x()
247 	/* arg3 used as pin or invert value */  in do_tca642x()
263 	switch ((int)c->cmd) {  in do_tca642x()
278 		bank_shift = ul_arg2 - (gpio_bank * 10);  in do_tca642x()
292 		bank_shift = ul_arg2 - (gpio_bank * 10);  in do_tca642x()
304 		bank_shift = ul_arg2 - (gpio_bank * 10);  in do_tca642x()
322 	"	- show or set current device address\n"
324 	"	- display info for current chip\n"
325 	"tca642x output pin 0|1\n"
326 	"	- set pin as output and drive low or high\n"
327 	"tca642x invert pin 0|1\n"
328 	"	- disable/enable polarity inversion for reads\n"
330 	"	- set pin as input and read value"