Orange Pi5 kernel

^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300   1) // SPDX-License-Identifier: GPL-2.0-or-later
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300   2) /*
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300   3)  * Driver for NXP PN533 NFC Chip - I2C transport layer
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300   4)  *
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300   5)  * Copyright (C) 2011 Instituto Nokia de Tecnologia
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300   6)  * Copyright (C) 2012-2013 Tieto Poland
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300   7)  * Copyright (C) 2016 HALE electronic
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300   8)  */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300   9) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  10) #include <linux/device.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  11) #include <linux/kernel.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  12) #include <linux/module.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  13) #include <linux/slab.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  14) #include <linux/i2c.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  15) #include <linux/nfc.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  16) #include <linux/netdevice.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  17) #include <linux/interrupt.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  18) #include <net/nfc/nfc.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  19) #include "pn533.h"
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  20) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  21) #define VERSION "0.1"
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  22) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  23) #define PN533_I2C_DRIVER_NAME "pn533_i2c"
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  24) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  25) struct pn533_i2c_phy {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  26) 	struct i2c_client *i2c_dev;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  27) 	struct pn533 *priv;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  28) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  29) 	bool aborted;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  30) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  31) 	int hard_fault;		/*
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  32) 				 * < 0 if hardware error occurred (e.g. i2c err)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  33) 				 * and prevents normal operation.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  34) 				 */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  35) };
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  36) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  37) static int pn533_i2c_send_ack(struct pn533 *dev, gfp_t flags)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  38) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  39) 	struct pn533_i2c_phy *phy = dev->phy;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  40) 	struct i2c_client *client = phy->i2c_dev;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  41) 	static const u8 ack[6] = {0x00, 0x00, 0xff, 0x00, 0xff, 0x00};
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  42) 	/* spec 6.2.1.3:  Preamble, SoPC (2), ACK Code (2), Postamble */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  43) 	int rc;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  44) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  45) 	rc = i2c_master_send(client, ack, 6);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  46) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  47) 	return rc;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  48) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  49) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  50) static int pn533_i2c_send_frame(struct pn533 *dev,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  51) 				struct sk_buff *out)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  52) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  53) 	struct pn533_i2c_phy *phy = dev->phy;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  54) 	struct i2c_client *client = phy->i2c_dev;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  55) 	int rc;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  56) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  57) 	if (phy->hard_fault != 0)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  58) 		return phy->hard_fault;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  59) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  60) 	if (phy->priv == NULL)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  61) 		phy->priv = dev;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  62) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  63) 	phy->aborted = false;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  64) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  65) 	print_hex_dump_debug("PN533_i2c TX: ", DUMP_PREFIX_NONE, 16, 1,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  66) 			     out->data, out->len, false);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  67) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  68) 	rc = i2c_master_send(client, out->data, out->len);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  69) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  70) 	if (rc == -EREMOTEIO) { /* Retry, chip was in power down */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  71) 		usleep_range(6000, 10000);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  72) 		rc = i2c_master_send(client, out->data, out->len);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  73) 	}
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  74) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  75) 	if (rc >= 0) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  76) 		if (rc != out->len)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  77) 			rc = -EREMOTEIO;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  78) 		else
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  79) 			rc = 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  80) 	}
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  81) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  82) 	return rc;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  83) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  84) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  85) static void pn533_i2c_abort_cmd(struct pn533 *dev, gfp_t flags)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  86) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  87) 	struct pn533_i2c_phy *phy = dev->phy;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  88) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  89) 	phy->aborted = true;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  90) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  91) 	/* An ack will cancel the last issued command */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  92) 	pn533_i2c_send_ack(dev, flags);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  93) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  94) 	/* schedule cmd_complete_work to finish current command execution */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  95) 	pn533_recv_frame(phy->priv, NULL, -ENOENT);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  96) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  97) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  98) static int pn533_i2c_read(struct pn533_i2c_phy *phy, struct sk_buff **skb)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  99) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 100) 	struct i2c_client *client = phy->i2c_dev;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 101) 	int len = PN533_EXT_FRAME_HEADER_LEN +
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 102) 		  PN533_STD_FRAME_MAX_PAYLOAD_LEN +
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 103) 		  PN533_STD_FRAME_TAIL_LEN + 1;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 104) 	int r;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 105) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 106) 	*skb = alloc_skb(len, GFP_KERNEL);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 107) 	if (*skb == NULL)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 108) 		return -ENOMEM;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 109) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 110) 	r = i2c_master_recv(client, skb_put(*skb, len), len);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 111) 	if (r != len) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 112) 		nfc_err(&client->dev, "cannot read. r=%d len=%d\n", r, len);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 113) 		kfree_skb(*skb);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 114) 		return -EREMOTEIO;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 115) 	}
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 116) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 117) 	if (!((*skb)->data[0] & 0x01)) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 118) 		nfc_err(&client->dev, "READY flag not set");
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 119) 		kfree_skb(*skb);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 120) 		return -EBUSY;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 121) 	}
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 122) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 123) 	/* remove READY byte */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 124) 	skb_pull(*skb, 1);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 125) 	/* trim to frame size */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 126) 	skb_trim(*skb, phy->priv->ops->rx_frame_size((*skb)->data));
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 127) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 128) 	return 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 129) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 130) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 131) static irqreturn_t pn533_i2c_irq_thread_fn(int irq, void *data)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 132) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 133) 	struct pn533_i2c_phy *phy = data;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 134) 	struct i2c_client *client;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 135) 	struct sk_buff *skb = NULL;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 136) 	int r;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 137) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 138) 	if (!phy || irq != phy->i2c_dev->irq) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 139) 		WARN_ON_ONCE(1);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 140) 		return IRQ_NONE;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 141) 	}
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 142) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 143) 	client = phy->i2c_dev;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 144) 	dev_dbg(&client->dev, "IRQ\n");
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 145) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 146) 	if (phy->hard_fault != 0)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 147) 		return IRQ_HANDLED;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 148) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 149) 	r = pn533_i2c_read(phy, &skb);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 150) 	if (r == -EREMOTEIO) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 151) 		phy->hard_fault = r;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 152) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 153) 		pn533_recv_frame(phy->priv, NULL, -EREMOTEIO);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 154) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 155) 		return IRQ_HANDLED;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 156) 	} else if ((r == -ENOMEM) || (r == -EBADMSG) || (r == -EBUSY)) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 157) 		return IRQ_HANDLED;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 158) 	}
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 159) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 160) 	if (!phy->aborted)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 161) 		pn533_recv_frame(phy->priv, skb, 0);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 162) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 163) 	return IRQ_HANDLED;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 164) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 165) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 166) static struct pn533_phy_ops i2c_phy_ops = {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 167) 	.send_frame = pn533_i2c_send_frame,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 168) 	.send_ack = pn533_i2c_send_ack,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 169) 	.abort_cmd = pn533_i2c_abort_cmd,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 170) };
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 171) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 172) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 173) static int pn533_i2c_probe(struct i2c_client *client,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 174) 			       const struct i2c_device_id *id)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 175) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 176) 	struct pn533_i2c_phy *phy;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 177) 	struct pn533 *priv;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 178) 	int r = 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 179) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 180) 	dev_dbg(&client->dev, "%s\n", __func__);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 181) 	dev_dbg(&client->dev, "IRQ: %d\n", client->irq);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 182) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 183) 	if (!i2c_check_functionality(client->adapter, I2C_FUNC_I2C)) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 184) 		nfc_err(&client->dev, "Need I2C_FUNC_I2C\n");
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 185) 		return -ENODEV;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 186) 	}
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 187) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 188) 	phy = devm_kzalloc(&client->dev, sizeof(struct pn533_i2c_phy),
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 189) 			   GFP_KERNEL);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 190) 	if (!phy)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 191) 		return -ENOMEM;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 192) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 193) 	phy->i2c_dev = client;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 194) 	i2c_set_clientdata(client, phy);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 195) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 196) 	priv = pn53x_common_init(PN533_DEVICE_PN532,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 197) 				PN533_PROTO_REQ_ACK_RESP,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 198) 				phy, &i2c_phy_ops, NULL,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 199) 				&phy->i2c_dev->dev);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 200) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 201) 	if (IS_ERR(priv)) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 202) 		r = PTR_ERR(priv);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 203) 		return r;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 204) 	}
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 205) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 206) 	phy->priv = priv;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 207) 	r = pn532_i2c_nfc_alloc(priv, PN533_NO_TYPE_B_PROTOCOLS, &client->dev);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 208) 	if (r)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 209) 		goto nfc_alloc_err;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 210) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 211) 	r = request_threaded_irq(client->irq, NULL, pn533_i2c_irq_thread_fn,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 212) 				IRQF_TRIGGER_FALLING |
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 213) 				IRQF_SHARED | IRQF_ONESHOT,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 214) 				PN533_I2C_DRIVER_NAME, phy);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 215) 	if (r < 0) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 216) 		nfc_err(&client->dev, "Unable to register IRQ handler\n");
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 217) 		goto irq_rqst_err;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 218) 	}
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 219) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 220) 	r = pn533_finalize_setup(priv);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 221) 	if (r)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 222) 		goto fn_setup_err;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 223) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 224) 	r = nfc_register_device(priv->nfc_dev);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 225) 	if (r)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 226) 		goto fn_setup_err;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 227) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 228) 	return r;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 229) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 230) fn_setup_err:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 231) 	free_irq(client->irq, phy);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 232) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 233) irq_rqst_err:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 234) 	nfc_free_device(priv->nfc_dev);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 235) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 236) nfc_alloc_err:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 237) 	pn53x_common_clean(phy->priv);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 238) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 239) 	return r;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 240) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 241) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 242) static int pn533_i2c_remove(struct i2c_client *client)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 243) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 244) 	struct pn533_i2c_phy *phy = i2c_get_clientdata(client);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 245) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 246) 	dev_dbg(&client->dev, "%s\n", __func__);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 247) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 248) 	free_irq(client->irq, phy);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 249) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 250) 	pn53x_unregister_nfc(phy->priv);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 251) 	pn53x_common_clean(phy->priv);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 252) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 253) 	return 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 254) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 255) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 256) static const struct of_device_id of_pn533_i2c_match[] = {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 257) 	{ .compatible = "nxp,pn532", },
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 258) 	/*
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 259) 	 * NOTE: The use of the compatibles with the trailing "...-i2c" is
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 260) 	 * deprecated and will be removed.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 261) 	 */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 262) 	{ .compatible = "nxp,pn533-i2c", },
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 263) 	{ .compatible = "nxp,pn532-i2c", },
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 264) 	{},
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 265) };
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 266) MODULE_DEVICE_TABLE(of, of_pn533_i2c_match);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 267) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 268) static const struct i2c_device_id pn533_i2c_id_table[] = {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 269) 	{ PN533_I2C_DRIVER_NAME, 0 },
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 270) 	{}
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 271) };
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 272) MODULE_DEVICE_TABLE(i2c, pn533_i2c_id_table);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 273) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 274) static struct i2c_driver pn533_i2c_driver = {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 275) 	.driver = {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 276) 		   .name = PN533_I2C_DRIVER_NAME,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 277) 		   .of_match_table = of_match_ptr(of_pn533_i2c_match),
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 278) 		  },
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 279) 	.probe = pn533_i2c_probe,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 280) 	.id_table = pn533_i2c_id_table,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 281) 	.remove = pn533_i2c_remove,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 282) };
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 283) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 284) module_i2c_driver(pn533_i2c_driver);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 285) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 286) MODULE_AUTHOR("Michael Thalmeier <michael.thalmeier@hale.at>");
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 287) MODULE_DESCRIPTION("PN533 I2C driver ver " VERSION);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 288) MODULE_VERSION(VERSION);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 289) MODULE_LICENSE("GPL");