Blackfin: debug-mmrs: fix typos with gptimers/mdma/ppi

This code was mostly developed against a BF54x, so some BF537-specific
issues were missed.

The PPI block starts at PPI_CONTROL, not PPI_STATUS (which is the reverse
of the EPPI block).

The MDMA block starts at MDMA_NEXT_DESC_PTR, not MDMA_CONFIG.  Seems the
sim does not catch misreads here so that'll need to get fixed.

The gptimer block is mostly 32bit regs, not 16bit.  Use the gptimer struct
to figure that out rather than hardcoding it locally.

Signed-off-by: Mike Frysinger <vapier@gentoo.org>

arch/blackfin/kernel/debug-mmrs.c

@@ -13,6 +13,7 @@
 
 #include <asm/blackfin.h>
 #include <asm/gpio.h>
+#include <asm/gptimers.h>
 #include <asm/bfin_can.h>
 #include <asm/bfin_dma.h>
 #include <asm/bfin_ppi.h>
@@ -230,8 +231,8 @@ bfin_debug_mmrs_dma(struct dentry *parent, unsigned long base, int num, char mdm
 #define DMA(num)  _DMA(num, DMA##num##_NEXT_DESC_PTR, 0, "")
 #define _MDMA(num, x) \
 	do { \
-		_DMA(num, x##DMA_D##num##_CONFIG, 'D', #x); \
-		_DMA(num, x##DMA_S##num##_CONFIG, 'S', #x); \
+		_DMA(num, x##DMA_D##num##_NEXT_DESC_PTR, 'D', #x); \
+		_DMA(num, x##DMA_S##num##_NEXT_DESC_PTR, 'S', #x); \
 	} while (0)
 #define MDMA(num) _MDMA(num, M)
 #define IMDMA(num) _MDMA(num, IM)
@@ -264,20 +265,15 @@ bfin_debug_mmrs_eppi(struct dentry *parent, unsigned long base, int num)
 /*
  * General Purpose Timers
  */
-#define GPTIMER_OFF(mmr) (TIMER0_##mmr - TIMER0_CONFIG)
-#define __GPTIMER(name) \
-	do { \
-		strcpy(_buf, #name); \
-		debugfs_create_x16(buf, S_IRUSR|S_IWUSR, parent, (u16 *)(base + GPTIMER_OFF(name))); \
-	} while (0)
+#define __GPTIMER(uname, lname) __REGS(gptimer, #uname, lname)
 static void __init __maybe_unused
 bfin_debug_mmrs_gptimer(struct dentry *parent, unsigned long base, int num)
 {
 	char buf[32], *_buf = REGS_STR_PFX(buf, TIMER, num);
-	__GPTIMER(CONFIG);
-	__GPTIMER(COUNTER);
-	__GPTIMER(PERIOD);
-	__GPTIMER(WIDTH);
+	__GPTIMER(CONFIG, config);
+	__GPTIMER(COUNTER, counter);
+	__GPTIMER(PERIOD, period);
+	__GPTIMER(WIDTH, width);
 }
 #define GPTIMER(num) bfin_debug_mmrs_gptimer(parent, TIMER##num##_CONFIG, num)
 
@@ -355,7 +351,7 @@ bfin_debug_mmrs_ppi(struct dentry *parent, unsigned long base, int num)
 	__PPI(DELAY, delay);
 	__PPI(FRAME, frame);
 }
-#define PPI(num) bfin_debug_mmrs_ppi(parent, PPI##num##_STATUS, num)
+#define PPI(num) bfin_debug_mmrs_ppi(parent, PPI##num##_CONTROL, num)
 
 /*
  * SPI
@@ -1288,15 +1284,15 @@ static int __init bfin_debug_mmrs_init(void)
 	D16(VR_CTL);
 	D32(CHIPID);	/* it's part of this hardware block */
 
-#if defined(PPI_STATUS) || defined(PPI0_STATUS) || defined(PPI1_STATUS)
+#if defined(PPI_CONTROL) || defined(PPI0_CONTROL) || defined(PPI1_CONTROL)
 	parent = debugfs_create_dir("ppi", top);
-# ifdef PPI_STATUS
-	bfin_debug_mmrs_ppi(parent, PPI_STATUS, -1);
+# ifdef PPI_CONTROL
+	bfin_debug_mmrs_ppi(parent, PPI_CONTROL, -1);
 # endif
-# ifdef PPI0_STATUS
+# ifdef PPI0_CONTROL
 	PPI(0);
 # endif
-# ifdef PPI1_STATUS
+# ifdef PPI1_CONTROL
 	PPI(1);
 # endif
 #endif