204 	int err;  in ks8995_read()  local
220 	err = spi_sync(ks->spi, &m);  in ks8995_read()
223 	return err ? err : count;  in ks8995_read()
232 	int err;  in ks8995_write()  local
248 	err = spi_sync(ks->spi, &m);  in ks8995_write()
251 	return err ? err : count;  in ks8995_write()
280 	int err;  in ks8995_reset()  local
282 	err = ks8995_stop(ks);  in ks8995_reset()
283 	if (err)  in ks8995_reset()
284 		return err;  in ks8995_reset()
322 	int err;  in ks8995_get_revision()  local
326 	err = ks8995_read_reg(ks, KS8995_REG_ID0, &id0);  in ks8995_get_revision()
327 	if (err) {  in ks8995_get_revision()
328 		err = -EIO;  in ks8995_get_revision()
336 		err = -ENODEV;  in ks8995_get_revision()
343 		err = ks8995_read_reg(ks, KS8995_REG_ID1, &id1);  in ks8995_get_revision()
344 		if (err) {  in ks8995_get_revision()
345 			err = -EIO;  in ks8995_get_revision()
356 			err = ks8995_read_reg(ks, KS8995_REG_ID1, &ksz8864_id);  in ks8995_get_revision()
357 			if (err) {  in ks8995_get_revision()
358 				err = -EIO;  in ks8995_get_revision()
370 			err = -ENODEV;  in ks8995_get_revision()
375 		err = ks8995_read_reg(ks, KS8995_REG_ID1, &id1);  in ks8995_get_revision()
376 		if (err) {  in ks8995_get_revision()
377 			err = -EIO;  in ks8995_get_revision()
386 			err = -ENODEV;  in ks8995_get_revision()
391 		err = -ENODEV;  in ks8995_get_revision()
395 	return err;  in ks8995_get_revision()
412 	int err;  in ks8995_probe()  local
430 	err = PTR_ERR_OR_ZERO(ks->reset_gpio);  in ks8995_probe()
431 	if (err) {  in ks8995_probe()
433 			"failed to get reset gpio: %d\n", err);  in ks8995_probe()
434 		return err;  in ks8995_probe()
437 	err = gpiod_set_consumer_name(ks->reset_gpio, "switch-reset");  in ks8995_probe()
438 	if (err)  in ks8995_probe()
439 		return err;  in ks8995_probe()
449 	err = spi_setup(spi);  in ks8995_probe()
450 	if (err) {  in ks8995_probe()
451 		dev_err(&spi->dev, "spi_setup failed, err=%d\n", err);  in ks8995_probe()
452 		return err;  in ks8995_probe()
455 	err = ks8995_get_revision(ks);  in ks8995_probe()
456 	if (err)  in ks8995_probe()
457 		return err;  in ks8995_probe()
462 	err = ks8995_reset(ks);  in ks8995_probe()
463 	if (err)  in ks8995_probe()
464 		return err;  in ks8995_probe()
467 	err = sysfs_create_bin_file(&spi->dev.kobj, &ks->regs_attr);  in ks8995_probe()
468 	if (err) {  in ks8995_probe()
470 				    err);  in ks8995_probe()
471 		return err;  in ks8995_probe()