[ARM] ohci-pxa27x: introduce flags to avoid direct access to OHCI registers

Direct access to USB host controller registers is considered to be not
portable, and is usually a bad sign for poorly abstracted interface.
Introduce .flags and .power_on_delay to "struct pxaohci_platform_data"
so that most platforms don't bother to write their own .init/.exit()
sequences.

Signed-off-by: Eric Miao <eric.miao@marvell.com>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>

arch/arm/mach-pxa/trizeps4.c

@@ -425,19 +425,9 @@ static struct pxaficp_platform_data trizeps4_ficp_platform_data = {
 /****************************************************************************
  * OHCI USB port
  ****************************************************************************/
-static int trizeps4_ohci_init(struct device *dev)
-{
-	/* Set the Power Control Polarity Low and Power Sense
-	   Polarity Low to active low. */
-	UHCHR = (UHCHR | UHCHR_PCPL | UHCHR_PSPL) &
-		~(UHCHR_SSEP1 | UHCHR_SSEP2 | UHCHR_SSEP3 | UHCHR_SSE);
-
-	return 0;
-}
-
 static struct pxaohci_platform_data trizeps4_ohci_platform_data = {
 	.port_mode	= PMM_PERPORT_MODE,
-	.init		= trizeps4_ohci_init,
+	.flags		= ENABLE_PORT_ALL | POWER_CONTROL_LOW | POWER_SENSE_LOW,
 };
 
 static struct map_desc trizeps4_io_desc[] __initdata = {