NFC: st21nfcb: Move powered flag from phy to ndlc layer

The powered flag can be set from the ndlc_open and ndlc_close layer.
Signed-off-by: Christophe Ricard <christophe-h.ricard@st.com>
Signed-off-by: Samuel Ortiz <sameo@linux.intel.com>

drivers/nfc/st21nfcb/i2c.c

@@ -52,8 +52,6 @@ struct st21nfcb_i2c_phy {
 
 	unsigned int gpio_reset;
 	unsigned int irq_polarity;
-
-	int powered;
 };
 
 #define I2C_DUMP_SKB(info, skb)					\
@@ -70,7 +68,6 @@ static int st21nfcb_nci_i2c_enable(void *phy_id)
 	gpio_set_value(phy->gpio_reset, 0);
 	usleep_range(10000, 15000);
 	gpio_set_value(phy->gpio_reset, 1);
-	phy->powered = 1;
 	usleep_range(80000, 85000);
 
 	return 0;
@@ -80,7 +77,6 @@ static void st21nfcb_nci_i2c_disable(void *phy_id)
 {
 	struct st21nfcb_i2c_phy *phy = phy_id;
 
-	phy->powered = 0;
 	/* reset chip in order to flush clf */
 	gpio_set_value(phy->gpio_reset, 0);
 	usleep_range(10000, 15000);
@@ -203,7 +199,7 @@ static irqreturn_t st21nfcb_nci_irq_thread_fn(int irq, void *phy_id)
 	if (phy->ndlc->hard_fault)
 		return IRQ_HANDLED;
 
-	if (!phy->powered) {
+	if (!phy->ndlc->powered) {
 		st21nfcb_nci_i2c_disable(phy);
 		return IRQ_HANDLED;
 	}

drivers/nfc/st21nfcb/ndlc.c

@@ -59,6 +59,7 @@ int ndlc_open(struct llt_ndlc *ndlc)
 {
 	/* toggle reset pin */
 	ndlc->ops->enable(ndlc->phy_id);
+	ndlc->powered = 1;
 	return 0;
 }
 EXPORT_SYMBOL(ndlc_open);
@@ -67,6 +68,7 @@ void ndlc_close(struct llt_ndlc *ndlc)
 {
 	/* toggle reset pin */
 	ndlc->ops->disable(ndlc->phy_id);
+	ndlc->powered = 0;
 }
 EXPORT_SYMBOL(ndlc_close);
 
@@ -262,6 +264,7 @@ int ndlc_probe(void *phy_id, struct nfc_phy_ops *phy_ops, struct device *dev,
 	ndlc->ops = phy_ops;
 	ndlc->phy_id = phy_id;
 	ndlc->dev = dev;
+	ndlc->powered = 0;
 
 	*ndlc_id = ndlc;
 

drivers/nfc/st21nfcb/ndlc.h

@@ -47,6 +47,7 @@ struct llt_ndlc {
 	 * and prevents normal operation.
 	 */
 	int hard_fault;
+	int powered;
 };
 
 int ndlc_open(struct llt_ndlc *ndlc);