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authorAndy Shevchenko <andriy.shevchenko@linux.intel.com>2017-03-07 12:25:44 +0200
committerSamuel Ortiz <sameo@linux.intel.com>2017-04-05 10:07:38 +0200
commit8e7836d030a2e08290a8df25d45a2fad00957738 (patch)
tree96c893f38a7cb5743b344f62cef257532633d9aa /drivers/nfc
parent79557b33cca2fa005235b45ab16b81f95f441bd8 (diff)
downloadop-kernel-dev-8e7836d030a2e08290a8df25d45a2fad00957738.zip
op-kernel-dev-8e7836d030a2e08290a8df25d45a2fad00957738.tar.gz
NFC: st21nfca: Get rid of "interesting" use of interrupt polarity
I2C framework followed by IRQ framework does set interrupt polarity correctly if it's properly specified in firmware (ACPI or DT). Get rid of the redundant trick when requesting interrupt. Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com> Signed-off-by: Samuel Ortiz <sameo@linux.intel.com>
Diffstat (limited to 'drivers/nfc')
-rw-r--r--drivers/nfc/st21nfca/i2c.c7
1 files changed, 1 insertions, 6 deletions
diff --git a/drivers/nfc/st21nfca/i2c.c b/drivers/nfc/st21nfca/i2c.c
index 4437335..6cfc7b9 100644
--- a/drivers/nfc/st21nfca/i2c.c
+++ b/drivers/nfc/st21nfca/i2c.c
@@ -68,7 +68,6 @@ struct st21nfca_i2c_phy {
struct nfc_hci_dev *hdev;
unsigned int gpio_ena;
- unsigned int irq_polarity;
struct st21nfca_se_status se_status;
@@ -520,8 +519,6 @@ static int st21nfca_hci_i2c_acpi_request_resources(struct i2c_client *client)
phy->gpio_ena = desc_to_gpio(gpiod_ena);
- phy->irq_polarity = irq_get_trigger_type(client->irq);
-
phy->se_status.is_ese_present = false;
phy->se_status.is_uicc_present = false;
@@ -566,8 +563,6 @@ static int st21nfca_hci_i2c_of_request_resources(struct i2c_client *client)
phy->gpio_ena = gpio;
- phy->irq_polarity = irq_get_trigger_type(client->irq);
-
phy->se_status.is_ese_present =
of_property_read_bool(pp, "ese-present");
phy->se_status.is_uicc_present =
@@ -630,7 +625,7 @@ static int st21nfca_hci_i2c_probe(struct i2c_client *client,
r = devm_request_threaded_irq(&client->dev, client->irq, NULL,
st21nfca_hci_irq_thread_fn,
- phy->irq_polarity | IRQF_ONESHOT,
+ IRQF_ONESHOT,
ST21NFCA_HCI_DRIVER_NAME, phy);
if (r < 0) {
nfc_err(&client->dev, "Unable to register IRQ handler\n");
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