ARM: OMAP2: MUSB: Specify omap4 has mailbox

Added has_mailbox to the musb platform data to specify that omap uses
an external mailbox (in control module) to communicate with the musb
core during device connect and disconnect.

Signed-off-by: Kishon Vijay Abraham I <kishon@ti.com>
Acked-by: Tony Lindgren <tony@atomide.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

diff --git a/arch/arm/mach-omap2/usb-musb.c b/arch/arm/mach-omap2/usb-musb.c
index 7b33b37..9d27e3f 100644 (file)
--- a/arch/arm/mach-omap2/usb-musb.c
+++ b/arch/arm/mach-omap2/usb-musb.c
@@ -85,6 +85,9 @@ void __init usb_musb_init(struct omap_musb_board_data *musb_board_data)
        musb_plat.mode = board_data->mode;
        musb_plat.extvbus = board_data->extvbus;
 
+       if (cpu_is_omap44xx())
+               musb_plat.has_mailbox = true;
+
        if (soc_is_am35xx()) {
                oh_name = "am35x_otg_hs";
                name = "musb-am35x";

diff --git a/include/linux/usb/musb.h b/include/linux/usb/musb.h
index eb50525..053c268 100644 (file)
--- a/include/linux/usb/musb.h
+++ b/include/linux/usb/musb.h
@@ -99,6 +99,8 @@ struct musb_hdrc_platform_data {
        /* MUSB_HOST, MUSB_PERIPHERAL, or MUSB_OTG */
        u8              mode;
 
+       u8              has_mailbox:1;
+
        /* for clk_get() */
        const char      *clock;