--- zzzz-none-000/linux-3.10.107/drivers/usb/musb/musb_dma.h	2017-06-27 09:49:32.000000000 +0000
+++ scorpion-7490-727/linux-3.10.107/drivers/usb/musb/musb_dma.h	2021-02-04 17:41:59.000000000 +0000
@@ -62,22 +62,47 @@
 
 #define	DMA_ADDR_INVALID	(~(dma_addr_t)0)
 
-#ifndef CONFIG_MUSB_PIO_ONLY
+#ifdef CONFIG_MUSB_PIO_ONLY
+#define	is_dma_capable()	(0)
+#else
 #define	is_dma_capable()	(1)
+#endif
+
+#ifdef CONFIG_USB_UX500_DMA
+#define musb_dma_ux500(musb)		(musb->io.quirks & MUSB_DMA_UX500)
 #else
-#define	is_dma_capable()	(0)
+#define musb_dma_ux500(musb)		0
+#endif
+
+#ifdef CONFIG_USB_TI_CPPI41_DMA
+#define musb_dma_cppi41(musb)		(musb->io.quirks & MUSB_DMA_CPPI41)
+#else
+#define musb_dma_cppi41(musb)		0
 #endif
 
 #ifdef CONFIG_USB_TI_CPPI_DMA
-#define	is_cppi_enabled()	1
+#define musb_dma_cppi(musb)		(musb->io.quirks & MUSB_DMA_CPPI)
 #else
-#define	is_cppi_enabled()	0
+#define musb_dma_cppi(musb)		0
 #endif
 
 #ifdef CONFIG_USB_TUSB_OMAP_DMA
-#define tusb_dma_omap()			1
+#define tusb_dma_omap(musb)		(musb->io.quirks & MUSB_DMA_TUSB_OMAP)
+#else
+#define tusb_dma_omap(musb)		0
+#endif
+
+#ifdef CONFIG_USB_INVENTRA_DMA
+#define musb_dma_inventra(musb)		(musb->io.quirks & MUSB_DMA_INVENTRA)
 #else
-#define tusb_dma_omap()			0
+#define musb_dma_inventra(musb)		0
+#endif
+
+#if defined(CONFIG_USB_TI_CPPI_DMA) || defined(CONFIG_USB_TI_CPPI41_DMA)
+#define	is_cppi_enabled(musb)		\
+	(musb_dma_cppi(musb) || musb_dma_cppi41(musb))
+#else
+#define	is_cppi_enabled(musb)	0
 #endif
 
 /* Anomaly 05000456 - USB Receive Interrupt Is Not Generated in DMA Mode 1
@@ -129,6 +154,7 @@
 	size_t			actual_len;
 	enum dma_channel_status	status;
 	bool			desired_mode;
+	bool			rx_packet_done;
 };
 
 /*
@@ -159,8 +185,6 @@
  * Controllers manage dma channels.
  */
 struct dma_controller {
-	int			(*start)(struct dma_controller *);
-	int			(*stop)(struct dma_controller *);
 	struct dma_channel	*(*channel_alloc)(struct dma_controller *,
 					struct musb_hw_ep *, u8 is_tx);
 	void			(*channel_release)(struct dma_channel *);
@@ -177,9 +201,42 @@
 /* called after channel_program(), may indicate a fault */
 extern void musb_dma_completion(struct musb *musb, u8 epnum, u8 transmit);
 
+#ifdef CONFIG_MUSB_PIO_ONLY
+static inline struct dma_controller *
+musb_dma_controller_create(struct musb *m, void __iomem *io)
+{
+	return NULL;
+}
+
+static inline void musb_dma_controller_destroy(struct dma_controller *d) { }
+
+#else
 
-extern struct dma_controller *dma_controller_create(struct musb *, void __iomem *);
+extern struct dma_controller *
+(*musb_dma_controller_create)(struct musb *, void __iomem *);
+
+extern void (*musb_dma_controller_destroy)(struct dma_controller *);
+#endif
 
-extern void dma_controller_destroy(struct dma_controller *);
+/* Platform specific DMA functions */
+extern struct dma_controller *
+musbhs_dma_controller_create(struct musb *musb, void __iomem *base);
+extern void musbhs_dma_controller_destroy(struct dma_controller *c);
+
+extern struct dma_controller *
+tusb_dma_controller_create(struct musb *musb, void __iomem *base);
+extern void tusb_dma_controller_destroy(struct dma_controller *c);
+
+extern struct dma_controller *
+cppi_dma_controller_create(struct musb *musb, void __iomem *base);
+extern void cppi_dma_controller_destroy(struct dma_controller *c);
+
+extern struct dma_controller *
+cppi41_dma_controller_create(struct musb *musb, void __iomem *base);
+extern void cppi41_dma_controller_destroy(struct dma_controller *c);
+
+extern struct dma_controller *
+ux500_dma_controller_create(struct musb *musb, void __iomem *base);
+extern void ux500_dma_controller_destroy(struct dma_controller *c);
 
 #endif	/* __MUSB_DMA_H__ */