summaryrefslogtreecommitdiff
path: root/drivers/nfc/st-nci/spi.c
diff options
context:
space:
mode:
authorAndré Fabian Silva Delgado <emulatorman@parabola.nu>2016-01-20 14:01:31 -0300
committerAndré Fabian Silva Delgado <emulatorman@parabola.nu>2016-01-20 14:01:31 -0300
commitb4b7ff4b08e691656c9d77c758fc355833128ac0 (patch)
tree82fcb00e6b918026dc9f2d1f05ed8eee83874cc0 /drivers/nfc/st-nci/spi.c
parent35acfa0fc609f2a2cd95cef4a6a9c3a5c38f1778 (diff)
Linux-libre 4.4-gnupck-4.4-gnu
Diffstat (limited to 'drivers/nfc/st-nci/spi.c')
-rw-r--r--drivers/nfc/st-nci/spi.c34
1 files changed, 19 insertions, 15 deletions
diff --git a/drivers/nfc/st-nci/spi.c b/drivers/nfc/st-nci/spi.c
index 887d308c2..d6519bb9d 100644
--- a/drivers/nfc/st-nci/spi.c
+++ b/drivers/nfc/st-nci/spi.c
@@ -28,7 +28,7 @@
#include <net/nfc/nci.h>
#include <linux/platform_data/st-nci.h>
-#include "ndlc.h"
+#include "st-nci.h"
#define DRIVER_DESC "NCI NFC driver for ST_NCI"
@@ -51,16 +51,13 @@ struct st_nci_spi_phy {
struct spi_device *spi_dev;
struct llt_ndlc *ndlc;
+ bool irq_active;
+
unsigned int gpio_reset;
unsigned int irq_polarity;
-};
-#define SPI_DUMP_SKB(info, skb) \
-do { \
- pr_debug("%s:\n", info); \
- print_hex_dump(KERN_DEBUG, "spi: ", DUMP_PREFIX_OFFSET, \
- 16, 1, (skb)->data, (skb)->len, 0); \
-} while (0)
+ struct st_nci_se_status se_status;
+};
static int st_nci_spi_enable(void *phy_id)
{
@@ -71,8 +68,10 @@ static int st_nci_spi_enable(void *phy_id)
gpio_set_value(phy->gpio_reset, 1);
usleep_range(80000, 85000);
- if (phy->ndlc->powered == 0)
+ if (phy->ndlc->powered == 0 && phy->irq_active == 0) {
enable_irq(phy->spi_dev->irq);
+ phy->irq_active = true;
+ }
return 0;
}
@@ -82,6 +81,7 @@ static void st_nci_spi_disable(void *phy_id)
struct st_nci_spi_phy *phy = phy_id;
disable_irq_nosync(phy->spi_dev->irq);
+ phy->irq_active = false;
}
/*
@@ -103,8 +103,6 @@ static int st_nci_spi_write(void *phy_id, struct sk_buff *skb)
.len = skb->len,
};
- SPI_DUMP_SKB("st_nci_spi_write", skb);
-
if (phy->ndlc->hard_fault != 0)
return phy->ndlc->hard_fault;
@@ -181,8 +179,6 @@ static int st_nci_spi_read(struct st_nci_spi_phy *phy,
skb_put(*skb, len);
memcpy((*skb)->data + ST_NCI_SPI_MIN_SIZE, buf, len);
- SPI_DUMP_SKB("spi frame read", *skb);
-
return 0;
}
@@ -260,6 +256,11 @@ static int st_nci_spi_of_request_resources(struct spi_device *dev)
phy->irq_polarity = irq_get_trigger_type(dev->irq);
+ phy->se_status.is_ese_present =
+ of_property_read_bool(pp, "ese-present");
+ phy->se_status.is_uicc_present =
+ of_property_read_bool(pp, "uicc-present");
+
return 0;
}
#else
@@ -292,6 +293,9 @@ static int st_nci_spi_request_resources(struct spi_device *dev)
return r;
}
+ phy->se_status.is_ese_present = pdata->is_ese_present;
+ phy->se_status.is_uicc_present = pdata->is_uicc_present;
+
return 0;
}
@@ -342,12 +346,13 @@ static int st_nci_spi_probe(struct spi_device *dev)
r = ndlc_probe(phy, &spi_phy_ops, &dev->dev,
ST_NCI_FRAME_HEADROOM, ST_NCI_FRAME_TAILROOM,
- &phy->ndlc);
+ &phy->ndlc, &phy->se_status);
if (r < 0) {
nfc_err(&dev->dev, "Unable to register ndlc layer\n");
return r;
}
+ phy->irq_active = true;
r = devm_request_threaded_irq(&dev->dev, dev->irq, NULL,
st_nci_irq_thread_fn,
phy->irq_polarity | IRQF_ONESHOT,
@@ -379,7 +384,6 @@ MODULE_DEVICE_TABLE(of, of_st_nci_spi_match);
static struct spi_driver st_nci_spi_driver = {
.driver = {
- .owner = THIS_MODULE,
.name = ST_NCI_SPI_DRIVER_NAME,
.of_match_table = of_match_ptr(of_st_nci_spi_match),
},