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path: root/drivers/nfc
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Diffstat (limited to 'drivers/nfc')
-rw-r--r--drivers/nfc/pn544/i2c.c22
1 files changed, 12 insertions, 10 deletions
diff --git a/drivers/nfc/pn544/i2c.c b/drivers/nfc/pn544/i2c.c
index fc02e8d6a193..d9018cda6c7f 100644
--- a/drivers/nfc/pn544/i2c.c
+++ b/drivers/nfc/pn544/i2c.c
@@ -195,18 +195,19 @@ static void pn544_hci_i2c_platform_init(struct pn544_i2c_phy *phy)
nfc_info(&phy->i2c_dev->dev, "Detecting nfc_en polarity\n");
/* Disable fw download */
- gpio_set_value(phy->gpio_fw, 0);
+ gpio_set_value_cansleep(phy->gpio_fw, 0);
for (polarity = 0; polarity < 2; polarity++) {
phy->en_polarity = polarity;
retry = 3;
while (retry--) {
/* power off */
- gpio_set_value(phy->gpio_en, !phy->en_polarity);
+ gpio_set_value_cansleep(phy->gpio_en,
+ !phy->en_polarity);
usleep_range(10000, 15000);
/* power on */
- gpio_set_value(phy->gpio_en, phy->en_polarity);
+ gpio_set_value_cansleep(phy->gpio_en, phy->en_polarity);
usleep_range(10000, 15000);
/* send reset */
@@ -225,13 +226,14 @@ static void pn544_hci_i2c_platform_init(struct pn544_i2c_phy *phy)
"Could not detect nfc_en polarity, fallback to active high\n");
out:
- gpio_set_value(phy->gpio_en, !phy->en_polarity);
+ gpio_set_value_cansleep(phy->gpio_en, !phy->en_polarity);
}
static void pn544_hci_i2c_enable_mode(struct pn544_i2c_phy *phy, int run_mode)
{
- gpio_set_value(phy->gpio_fw, run_mode == PN544_FW_MODE ? 1 : 0);
- gpio_set_value(phy->gpio_en, phy->en_polarity);
+ gpio_set_value_cansleep(phy->gpio_fw,
+ run_mode == PN544_FW_MODE ? 1 : 0);
+ gpio_set_value_cansleep(phy->gpio_en, phy->en_polarity);
usleep_range(10000, 15000);
phy->run_mode = run_mode;
@@ -254,14 +256,14 @@ static void pn544_hci_i2c_disable(void *phy_id)
{
struct pn544_i2c_phy *phy = phy_id;
- gpio_set_value(phy->gpio_fw, 0);
- gpio_set_value(phy->gpio_en, !phy->en_polarity);
+ gpio_set_value_cansleep(phy->gpio_fw, 0);
+ gpio_set_value_cansleep(phy->gpio_en, !phy->en_polarity);
usleep_range(10000, 15000);
- gpio_set_value(phy->gpio_en, phy->en_polarity);
+ gpio_set_value_cansleep(phy->gpio_en, phy->en_polarity);
usleep_range(10000, 15000);
- gpio_set_value(phy->gpio_en, !phy->en_polarity);
+ gpio_set_value_cansleep(phy->gpio_en, !phy->en_polarity);
usleep_range(10000, 15000);
phy->powered = 0;