243 static int st95hf_send_recv_cmd(struct st95hf_context *st95context,  in st95hf_send_recv_cmd()  argument
251 	struct device *dev = &st95context->spicontext.spidev->dev;  in st95hf_send_recv_cmd()
274 	ret = st95hf_spi_send(&st95context->spicontext,  in st95hf_send_recv_cmd()
286 		ret = st95hf_spi_recv_response(&st95context->spicontext,  in st95hf_send_recv_cmd()
304 static int st95hf_echo_command(struct st95hf_context *st95context)  in st95hf_echo_command()  argument
309 	result = st95hf_send_recv_cmd(st95context, CMD_ECHO, 0, NULL, false);  in st95hf_echo_command()
314 	result = st95hf_spi_recv_echo_res(&st95context->spicontext,  in st95hf_echo_command()
317 		dev_err(&st95context->spicontext.spidev->dev,  in st95hf_echo_command()
325 	dev_err(&st95context->spicontext.spidev->dev, "err: echo res is 0x%x\n",  in st95hf_echo_command()
473 static int st95hf_send_spi_reset_sequence(struct st95hf_context *st95context)  in st95hf_send_spi_reset_sequence()  argument
478 	result = st95hf_spi_send(&st95context->spicontext,  in st95hf_send_spi_reset_sequence()
483 		dev_err(&st95context->spicontext.spidev->dev,  in st95hf_send_spi_reset_sequence()
492 	st95hf_send_st95enable_negativepulse(st95context);  in st95hf_send_spi_reset_sequence()
500 static int st95hf_por_sequence(struct st95hf_context *st95context)  in st95hf_por_sequence()  argument
505 	st95hf_send_st95enable_negativepulse(st95context);  in st95hf_por_sequence()
510 		result = st95hf_echo_command(st95context);  in st95hf_por_sequence()
512 		dev_dbg(&st95context->spicontext.spidev->dev,  in st95hf_por_sequence()
521 			st95hf_send_st95enable_negativepulse(st95context);  in st95hf_por_sequence()
523 			st95hf_send_spi_reset_sequence(st95context);  in st95hf_por_sequence()
532 static int iso14443_config_fdt(struct st95hf_context *st95context, int wtxm)  in iso14443_config_fdt()  argument
535 	struct device *dev = &st95context->spicontext.spidev->dev;  in iso14443_config_fdt()
536 	struct nfc_digital_dev *nfcddev = st95context->ddev;  in iso14443_config_fdt()
543 	    st95context->fwi < 4)  in iso14443_config_fdt()
544 		st95context->fwi = 4;  in iso14443_config_fdt()
548 		new_params[0].new_param_val = st95context->fwi;  in iso14443_config_fdt()
557 		result = st95hf_send_recv_cmd(st95context,  in iso14443_config_fdt()
569 		result = secondary_configuration_type4a(st95context);  in iso14443_config_fdt()
577 		result = st95hf_send_recv_cmd(st95context,  in iso14443_config_fdt()
589 		result = secondary_configuration_type4b(st95context);  in iso14443_config_fdt()
1068 	struct st95hf_context *st95context;  in st95hf_probe()  local
1073 	st95context = devm_kzalloc(&nfc_spi_dev->dev,  in st95hf_probe()
1076 	if (!st95context)  in st95hf_probe()
1079 	spicontext = &st95context->spicontext;  in st95hf_probe()
1083 	st95context->fwi =  in st95hf_probe()
1087 		st95context->st95hf_supply =  in st95hf_probe()
1090 		if (IS_ERR(st95context->st95hf_supply)) {  in st95hf_probe()
1092 			return PTR_ERR(st95context->st95hf_supply);  in st95hf_probe()
1095 		ret = regulator_enable(st95context->st95hf_supply);  in st95hf_probe()
1111 	st95context->enable_gpio =  in st95hf_probe()
1115 	if (!gpio_is_valid(st95context->enable_gpio)) {  in st95hf_probe()
1117 		ret = st95context->enable_gpio;  in st95hf_probe()
1121 	ret = devm_gpio_request_one(&nfc_spi_dev->dev, st95context->enable_gpio,  in st95hf_probe()
1134 					      (void *)st95context) < 0) {  in st95hf_probe()
1151 	ret = st95hf_send_spi_reset_sequence(st95context);  in st95hf_probe()
1158 	ret = st95hf_por_sequence(st95context);  in st95hf_probe()
1165 	st95context->ddev = nfc_digital_allocate_device(&st95hf_nfc_digital_ops,  in st95hf_probe()
1170 	if (!st95context->ddev) {  in st95hf_probe()
1175 	st95context->nfcdev = st95context->ddev->nfc_dev;  in st95hf_probe()
1176 	nfc_digital_set_parent_dev(st95context->ddev, &nfc_spi_dev->dev);  in st95hf_probe()
1178 	ret =  nfc_digital_register_device(st95context->ddev);  in st95hf_probe()
1180 		dev_err(&st95context->nfcdev->dev, "st95hf registration failed\n");  in st95hf_probe()
1185 	nfc_digital_set_drvdata(st95context->ddev, st95context);  in st95hf_probe()
1187 	sema_init(&st95context->exchange_lock, 1);  in st95hf_probe()
1188 	mutex_init(&st95context->rm_lock);  in st95hf_probe()
1193 	nfc_digital_free_device(st95context->ddev);  in st95hf_probe()
1195 	if (st95context->st95hf_supply)  in st95hf_probe()
1196 		regulator_disable(st95context->st95hf_supply);  in st95hf_probe()