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Commit fcb45e6a authored by Christophe Ricard's avatar Christophe Ricard Committed by Samuel Ortiz
Browse files

NFC: st21nfca: Reworked st21nfca_request_resources 



Remove struct st21nfca_i2c_phy* as this parameter can be retrieve
through i2c_get_clientdata(client)

Signed-off-by: default avatarChristophe Ricard <christophe-h.ricard@st.com>
Signed-off-by: default avatarSamuel Ortiz <sameo@linux.intel.com>
parent 9bac75d0

drivers/nfc/st21nfca/i2c.c

+26 −16
Original line number Diff line number Diff line
@@ -451,10 +451,10 @@ static struct nfc_phy_ops i2c_phy_ops = { 
	.disable = st21nfca_hci_i2c_disable,

};



static int st21nfca_request_resources(struct st21nfca_i2c_phy *phy,

				      struct i2c_client *client)

static int st21nfca_hci_i2c_request_resources(struct i2c_client *client)

{

	struct st21nfca_nfc_platform_data *pdata;

	struct st21nfca_i2c_phy *phy = i2c_get_clientdata(client);

	int r;



	pdata = client->dev.platform_data;
@@ -467,7 +467,6 @@ static int st21nfca_request_resources(struct st21nfca_i2c_phy *phy, 
	phy->gpio_irq = pdata->gpio_irq;

	phy->gpio_ena = pdata->gpio_ena;

	phy->irq_polarity = pdata->irq_polarity;

	phy->i2c_dev = client;



	r = devm_gpio_request(&client->dev, phy->gpio_irq, "wake_up");

	if (r) {
@@ -481,7 +480,7 @@ static int st21nfca_request_resources(struct st21nfca_i2c_phy *phy, 
		return -ENODEV;

	}



	if (phy->gpio_ena != 0) {

	if (phy->gpio_ena > 0) {

		r = devm_gpio_request(&client->dev,

					phy->gpio_ena, "clf_enable");

		if (r) {
@@ -497,13 +496,7 @@ static int st21nfca_request_resources(struct st21nfca_i2c_phy *phy, 
		}

	}



	phy->pending_skb = alloc_skb(ST21NFCA_HCI_LLC_MAX_SIZE * 2, GFP_KERNEL);

	if (phy->pending_skb == NULL)

		return -ENOMEM;



	phy->current_read_len = 0;

	phy->crc_trials = 0;

	return r;

	return 0;

}



static int st21nfca_hci_i2c_probe(struct i2c_client *client,
@@ -511,7 +504,8 @@ static int st21nfca_hci_i2c_probe(struct i2c_client *client, 
{

	struct st21nfca_i2c_phy *phy;

	struct st21nfca_nfc_platform_data *pdata;

	int r = 0;

	int r;

	int irq;



	dev_dbg(&client->dev, "%s\n", __func__);

	dev_dbg(&client->dev, "IRQ: %d\n", client->irq);
@@ -530,21 +524,36 @@ static int st21nfca_hci_i2c_probe(struct i2c_client *client, 
	}



	phy->i2c_dev = client;

	phy->pending_skb = alloc_skb(ST21NFCA_HCI_LLC_MAX_SIZE * 2, GFP_KERNEL);

	if (phy->pending_skb == NULL)

		return -ENOMEM;



	phy->current_read_len = 0;

	phy->crc_trials = 0;

	i2c_set_clientdata(client, phy);



	pdata = client->dev.platform_data;

	if (pdata == NULL) {

	if (!pdata) {

		nfc_err(&client->dev, "No platform data\n");

		return -EINVAL;

	}



	r = st21nfca_request_resources(phy, client);

	r = st21nfca_hci_i2c_request_resources(client);

	if (r) {

		nfc_err(&client->dev, "Cannot get platform resources\n");

		return r;

	}



	/* IRQ */

	irq = gpio_to_irq(phy->gpio_irq);

	if (irq < 0) {

		nfc_err(&client->dev,

				"Unable to get irq number for GPIO %d error %d\n",

				phy->gpio_irq, r);

		return -ENODEV;

	}

	client->irq = irq;



	st21nfca_hci_platform_init(phy);

	r = devm_request_threaded_irq(&client->dev, client->irq, NULL,

				st21nfca_hci_irq_thread_fn,
@@ -576,6 +585,7 @@ static int st21nfca_hci_i2c_remove(struct i2c_client *client) 


static struct i2c_driver st21nfca_hci_i2c_driver = {

	.driver = {

		.owner = THIS_MODULE,

		.name = ST21NFCA_HCI_I2C_DRIVER_NAME,

	},

	.probe = st21nfca_hci_i2c_probe,