usb: musb: adding support for registering nop xceiv

Adding support for registering nop usb transceiver for musb
platforms. Tested with OMAP35xx EVM having OTG phy ISP1504
which is autonomous and doesn't require any phy programming.

Signed-off-by: Ajay Kumar Gupta <ajay.gupta@ti.com>
Signed-off-by: Tony Lindgren <tony@atomide.com>

diff --git a/arch/arm/mach-omap2/usb-musb.c b/arch/arm/mach-omap2/usb-musb.c
index 327af7d494fecad537946ef31deccdcf2d42a5e1..81b4195cbefbf54107d8006bc654b16d4fedda99 100644 (file)
--- a/arch/arm/mach-omap2/usb-musb.c
+++ b/arch/arm/mach-omap2/usb-musb.c
@@ -146,6 +146,20 @@ static struct platform_device musb_device = {
        .resource       = musb_resources,
 };
 
+#ifdef CONFIG_NOP_USB_XCEIV
+static u64 nop_xceiv_dmamask = DMA_32BIT_MASK;
+
+static struct platform_device nop_xceiv_device = {
+       .name           = "nop_usb_xceiv",
+       .id             = -1,
+       .dev = {
+               .dma_mask               = &nop_xceiv_dmamask,
+               .coherent_dma_mask      = DMA_32BIT_MASK,
+               .platform_data          = NULL,
+       },
+};
+#endif
+
 void __init usb_musb_init(void)
 {
        if (cpu_is_omap243x()) {
@@ -158,6 +172,13 @@ void __init usb_musb_init(void)
 
        musb_resources[0].end = musb_resources[0].start + SZ_8K - 1;
 
+#ifdef CONFIG_NOP_USB_XCEIV
+       if (platform_device_register(&nop_xceiv_device) < 0) {
+               printk(KERN_ERR "Unable to register NOP-XCEIV device\n");
+               return;
+       }
+#endif
+
        if (platform_device_register(&musb_device) < 0) {
                printk(KERN_ERR "Unable to register HS-USB (MUSB) device\n");
                return;