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NFC: st21nfcb: Remove gpio_irq field in static and dts configuration 

- phy->gpio_irq is never done out of the request resources.
- irq_of_parse_and_map is already done in the i2c core so client->irq is
already set when entering in st21nfcb_hci_i2c_of_request_resources
- In case of static platform configuration client->irq can be set directly.
- It simplifies the code a bit.

Signed-off-by: Christophe Ricard <christophe-h.ricard@st.com>
Signed-off-by: Samuel Ortiz <sameo@linux.intel.com>
This commit is contained in:
Christophe Ricard 2014-11-13 00:30:26 +01:00 committed by Samuel Ortiz
parent d9b6691894
commit a80d0cb6f6
2 changed files with 1 additions and 30 deletions
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30
drivers/nfc/st21nfcb/i2c.c
View File

@ -50,7 +50,6 @@ struct st21nfcb_i2c_phy {
struct i2c_client *i2c_dev;
struct llt_ndlc *ndlc;
unsigned int gpio_irq;
unsigned int gpio_reset;
unsigned int irq_polarity;
@ -262,15 +261,7 @@ static int st21nfcb_nci_i2c_of_request_resources(struct i2c_client *client)
}
phy->gpio_reset = gpio;
/* IRQ */
r = irq_of_parse_and_map(pp, 0);
if (r < 0) {
nfc_err(&client->dev, "Unable to get irq, error: %d\n", r);
return r;
}
phy->irq_polarity = irq_get_trigger_type(r);
client->irq = r;
phy->irq_polarity = irq_get_trigger_type(client->irq);
return 0;
}
@ -286,7 +277,6 @@ static int st21nfcb_nci_i2c_request_resources(struct i2c_client *client)
struct st21nfcb_nfc_platform_data *pdata;
struct st21nfcb_i2c_phy *phy = i2c_get_clientdata(client);
int r;
int irq;
pdata = client->dev.platform_data;
if (pdata == NULL) {
@ -295,17 +285,9 @@ static int st21nfcb_nci_i2c_request_resources(struct i2c_client *client)
}
/* store for later use */
phy->gpio_irq = pdata->gpio_irq;
phy->gpio_reset = pdata->gpio_reset;
phy->irq_polarity = pdata->irq_polarity;
r = devm_gpio_request_one(&client->dev, phy->gpio_irq,
GPIOF_IN, "clf_irq");
if (r) {
pr_err("%s : gpio_request failed\n", __FILE__);
return -ENODEV;
}
r = devm_gpio_request_one(&client->dev,
phy->gpio_reset, GPIOF_OUT_INIT_HIGH, "clf_reset");
if (r) {
@ -313,16 +295,6 @@ static int st21nfcb_nci_i2c_request_resources(struct i2c_client *client)
return -ENODEV;
}
/* 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;
return 0;
}

1
include/linux/platform_data/st21nfcb.h
View File

@ -24,7 +24,6 @@
#define ST21NFCB_NCI_DRIVER_NAME "st21nfcb_nci"
struct st21nfcb_nfc_platform_data {
unsigned int gpio_irq;
unsigned int gpio_reset;
unsigned int irq_polarity;
};