musb_hdrc, CamelCase begone (cppi descriptors, ...)

More CamelCase removal from the CPPI support.  In this case:

 - CPPI descriptor members;
 - Some members of the controller struct;
 - Rename "regBase" variables (as "tibase", vs Mentor registers)
 - Rename otgCh variables as cppi_ch;

This code still has a bunch of CaMeLcAsInG going on.
Signed-off-by: David Brownell <dbrownell@users.sourceforge.net>

drivers/usb/musb/cppi_dma.h

@@ -44,7 +44,7 @@ struct cppi_rx_stateram {
 	u32 rx_complete;
 };
 
-/* hOptions bit masks for CPPI BDs */
+/* hw_options bits in CPPI buffer descriptors */
 #define CPPI_SOP_SET	((u32)(1 << 31))
 #define CPPI_EOP_SET	((u32)(1 << 30))
 #define CPPI_OWN_SET	((u32)(1 << 29))	/* owned by cppi */
@@ -62,17 +62,15 @@ struct cppi_rx_stateram {
 #define	CPPI_DESCRIPTOR_ALIGN	16	/* bytes; 5-dec docs say 4-byte align */
 
 struct cppi_descriptor {
-	/* Hardware Overlay */
-	u32 hNext;	/* Next(hardware) Buffer Descriptor Pointer */
-	u32 buffPtr;	/* Buffer Pointer (dma_addr_t) */
-	u32 bOffBLen;	/* Buffer_offset16,buffer_length16 */
-	u32 hOptions;	/* Option fields for SOP,EOP etc*/
+	/* hardware overlay */
+	u32		hw_next;	/* next buffer descriptor Pointer */
+	u32		hw_bufp;	/* i/o buffer pointer */
+	u32		hw_off_len;	/* buffer_offset16, buffer_length16 */
+	u32		hw_options;	/* flags:  SOP, EOP etc*/
 
 	struct cppi_descriptor *next;
-	dma_addr_t dma;		/* address of this descriptor */
-
-	/* for Rx Desc, track original Buffer len to detect short packets */
-	u32 enqBuffLen;
+	dma_addr_t	dma;		/* address of this descriptor */
+	u32		buflen;		/* for RX: original buffer length */
 } __attribute__ ((aligned(CPPI_DESCRIPTOR_ALIGN)));
 
 
@@ -85,7 +83,7 @@ struct cppi_channel {
 	 */
 	struct dma_channel Channel;
 
-	/* back pointer to the DMA Controller structure */
+	/* back pointer to the DMA controller structure */
 	struct cppi		*controller;
 
 	/* which direction of which endpoint? */
@@ -119,12 +117,13 @@ struct cppi_channel {
 
 /* CPPI DMA controller object */
 struct cppi {
-	struct dma_controller		Controller;
+	struct dma_controller		controller;
 	struct musb			*musb;
-	void __iomem			*pCoreBase;
+	void __iomem			*mregs;		/* Mentor regs */
+	void __iomem			*tibase;	/* TI/CPPI regs */
 
-	struct cppi_channel		txCppi[MUSB_C_NUM_EPT - 1];
-	struct cppi_channel		rxCppi[MUSB_C_NUM_EPR - 1];
+	struct cppi_channel		tx[MUSB_C_NUM_EPT - 1];
+	struct cppi_channel		rx[MUSB_C_NUM_EPR - 1];
 
 	struct dma_pool			*pool;