[ARM] 4971/1: pxaficp_ir: provide startup and shutdown hooks

Let platform do some specific initialisation and cleanup
things during pxaficp_ir probing and removing. E.g. this
can be usefull to request/free gpios used by the platform
to control the transceiver.
Signed-off-by: NDmitry Baryshkov <dbaryshkov@gmail.com>
Signed-off-by: NRussell King <rmk+kernel@arm.linux.org.uk>

drivers/net/irda/pxaficp_ir.c

@@ -832,6 +832,11 @@ static int pxa_irda_probe(struct platform_device *pdev)
 	if (err)
 		goto err_mem_5;
 
+	if (si->pdata->startup)
+		err = si->pdata->startup(si->dev);
+	if (err)
+		goto err_startup;
+
 	dev->hard_start_xmit	= pxa_irda_hard_xmit;
 	dev->open		= pxa_irda_start;
 	dev->stop		= pxa_irda_stop;
@@ -857,6 +862,9 @@ static int pxa_irda_probe(struct platform_device *pdev)
 		dev_set_drvdata(&pdev->dev, dev);
 
 	if (err) {
+		if (si->pdata->shutdown)
+			si->pdata->shutdown(si->dev);
+err_startup:
 		kfree(si->tx_buff.head);
 err_mem_5:
 		kfree(si->rx_buff.head);
@@ -882,6 +890,8 @@ static int pxa_irda_remove(struct platform_device *_dev)
 	if (dev) {
 		struct pxa_irda *si = netdev_priv(dev);
 		unregister_netdev(dev);
+		if (si->pdata->shutdown)
+			si->pdata->shutdown(si->dev);
 		kfree(si->tx_buff.head);
 		kfree(si->rx_buff.head);
 		clk_put(si->fir_clk);

include/asm-arm/arch-pxa/irda.h

@@ -10,6 +10,8 @@
 struct pxaficp_platform_data {
 	int transceiver_cap;
 	void (*transceiver_mode)(struct device *dev, int mode);
+	int (*startup)(struct device *dev);
+	void (*shutdown)(struct device *dev);
 };
 
 extern void pxa_set_ficp_info(struct pxaficp_platform_data *info);