From: Ming Lei <tom.leiming@gmail.com>

This patch introduces get_hw_revision callback in glue_ops,
and implement it in tusb glue driver, so tusb dma code can
get tusb revision via .get_hw_revision callback and we can
make glue drivers built as module easyly in later patches.

Signed-off-by: Ming Lei <tom.leiming@gmail.com>
---
 drivers/usb/musb/musb_core.h     |    3 +++
 drivers/usb/musb/tusb6010.c      |    2 ++
 drivers/usb/musb/tusb6010_omap.c |    3 ++-
 3 files changed, 7 insertions(+), 1 deletions(-)

diff --git a/drivers/usb/musb/musb_core.h b/drivers/usb/musb/musb_core.h
index b9ea563..5843810 100644
--- a/drivers/usb/musb/musb_core.h
+++ b/drivers/usb/musb/musb_core.h
@@ -259,6 +259,7 @@ enum musb_g_ep0_state {
  * @exit:	undoes @init
  * @set_mode:	forcefully changes operating mode
  * @try_ilde:	tries to idle the IP
+ * @get_hw_revision: get hardware revision
  * @vbus_status: returns vbus status if possible
  * @set_vbus:	forces vbus status
  */
@@ -272,6 +273,8 @@ struct musb_platform_ops {
 	int	(*set_mode)(struct musb *musb, u8 mode);
 	void	(*try_idle)(struct musb *musb, unsigned long timeout);
 
+	u8  (*get_hw_revision)(struct musb *musb);
+
 	int	(*vbus_status)(struct musb *musb);
 	void	(*set_vbus)(struct musb *musb, int on);
 };
diff --git a/drivers/usb/musb/tusb6010.c b/drivers/usb/musb/tusb6010.c
index c891843..b29ecd8 100644
--- a/drivers/usb/musb/tusb6010.c
+++ b/drivers/usb/musb/tusb6010.c
@@ -1173,6 +1173,8 @@ static const struct musb_platform_ops tusb_ops = {
 	.set_mode	= tusb_musb_set_mode,
 	.try_idle	= tusb_musb_try_idle,
 
+	.get_hw_revision	= tusb_get_revision,
+
 	.vbus_status	= tusb_musb_vbus_status,
 	.set_vbus	= tusb_musb_set_vbus,
 };
diff --git a/drivers/usb/musb/tusb6010_omap.c b/drivers/usb/musb/tusb6010_omap.c
index c061a88..7403bfd 100644
--- a/drivers/usb/musb/tusb6010_omap.c
+++ b/drivers/usb/musb/tusb6010_omap.c
@@ -696,7 +696,8 @@ dma_controller_create(struct musb *musb, void __iomem *base)
 	tusb_dma->controller.channel_program = tusb_omap_dma_program;
 	tusb_dma->controller.channel_abort = tusb_omap_dma_abort;
 
-	if (tusb_get_revision(musb) >= TUSB_REV_30)
+	if (musb->ops->get_hw_revision &&
+		musb->ops->get_hw_revision(musb) >= TUSB_REV_30)
 		tusb_dma->multichannel = 1;
 
 	for (i = 0; i < MAX_DMAREQ; i++) {
-- 
1.7.3

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