usb: dwc2: Use platform endianness when accessing registers

This patch switches calls to readl/writel to their
dwc2_readl/dwc2_writel equivalents which preserve platform endianness.

This patch is necessary to access dwc2 registers correctly on big-endian
systems such as the mips based SoCs made by Lantiq. Then dwc2 can be
used to replace ifx-hcd driver for Lantiq platforms found e.g. in
OpenWrt.

The patch was autogenerated with the following commands:
$EDITOR core.h
sed -i "s/\<readl\>/dwc2_readl/g" *.c hcd.h hw.h
sed -i "s/\<writel\>/dwc2_writel/g" *.c hcd.h hw.h

Some files were then hand-edited to fix checkpatch.pl warnings about
too long lines.

Signed-off-by: Antti Seppälä <a.seppala@gmail.com>
Signed-off-by: Vincent Pelletier <plr.vincent@gmail.com>
Signed-off-by: John Youn <johnyoun@synopsys.com>
Signed-off-by: Felipe Balbi <balbi@ti.com>

1 files changed, 26 insertions, 26 deletions

diff --git a/drivers/usb/dwc2/debugfs.c b/drivers/usb/dwc2/debugfs.c
index cee3d771b75e..55d91f24f94a 100644
--- a/drivers/usb/dwc2/debugfs.c
+++ b/drivers/usb/dwc2/debugfs.c
@@ -76,7 +76,7 @@ static int testmode_show(struct seq_file *s, void *unused)
 	int dctl;
 
 	spin_lock_irqsave(&hsotg->lock, flags);
-	dctl = readl(hsotg->regs + DCTL);
+	dctl = dwc2_readl(hsotg->regs + DCTL);
 	dctl &= DCTL_TSTCTL_MASK;
 	dctl >>= DCTL_TSTCTL_SHIFT;
 	spin_unlock_irqrestore(&hsotg->lock, flags);
@@ -137,38 +137,38 @@ static int state_show(struct seq_file *seq, void *v)
 	int idx;
 
 	seq_printf(seq, "DCFG=0x%08x, DCTL=0x%08x, DSTS=0x%08x\n",
-		 readl(regs + DCFG),
-		 readl(regs + DCTL),
-		 readl(regs + DSTS));
+		 dwc2_readl(regs + DCFG),
+		 dwc2_readl(regs + DCTL),
+		 dwc2_readl(regs + DSTS));
 
 	seq_printf(seq, "DIEPMSK=0x%08x, DOEPMASK=0x%08x\n",
-		   readl(regs + DIEPMSK), readl(regs + DOEPMSK));
+		   dwc2_readl(regs + DIEPMSK), dwc2_readl(regs + DOEPMSK));
 
 	seq_printf(seq, "GINTMSK=0x%08x, GINTSTS=0x%08x\n",
-		   readl(regs + GINTMSK),
-		   readl(regs + GINTSTS));
+		   dwc2_readl(regs + GINTMSK),
+		   dwc2_readl(regs + GINTSTS));
 
 	seq_printf(seq, "DAINTMSK=0x%08x, DAINT=0x%08x\n",
-		   readl(regs + DAINTMSK),
-		   readl(regs + DAINT));
+		   dwc2_readl(regs + DAINTMSK),
+		   dwc2_readl(regs + DAINT));
 
 	seq_printf(seq, "GNPTXSTS=0x%08x, GRXSTSR=%08x\n",
-		   readl(regs + GNPTXSTS),
-		   readl(regs + GRXSTSR));
+		   dwc2_readl(regs + GNPTXSTS),
+		   dwc2_readl(regs + GRXSTSR));
 
 	seq_puts(seq, "\nEndpoint status:\n");
 
 	for (idx = 0; idx < hsotg->num_of_eps; idx++) {
 		u32 in, out;
 
-		in = readl(regs + DIEPCTL(idx));
-		out = readl(regs + DOEPCTL(idx));
+		in = dwc2_readl(regs + DIEPCTL(idx));
+		out = dwc2_readl(regs + DOEPCTL(idx));
 
 		seq_printf(seq, "ep%d: DIEPCTL=0x%08x, DOEPCTL=0x%08x",
 			   idx, in, out);
 
-		in = readl(regs + DIEPTSIZ(idx));
-		out = readl(regs + DOEPTSIZ(idx));
+		in = dwc2_readl(regs + DIEPTSIZ(idx));
+		out = dwc2_readl(regs + DOEPTSIZ(idx));
 
 		seq_printf(seq, ", DIEPTSIZ=0x%08x, DOEPTSIZ=0x%08x",
 			   in, out);
@@ -208,9 +208,9 @@ static int fifo_show(struct seq_file *seq, void *v)
 	int idx;
 
 	seq_puts(seq, "Non-periodic FIFOs:\n");
-	seq_printf(seq, "RXFIFO: Size %d\n", readl(regs + GRXFSIZ));
+	seq_printf(seq, "RXFIFO: Size %d\n", dwc2_readl(regs + GRXFSIZ));
 
-	val = readl(regs + GNPTXFSIZ);
+	val = dwc2_readl(regs + GNPTXFSIZ);
 	seq_printf(seq, "NPTXFIFO: Size %d, Start 0x%08x\n",
 		   val >> FIFOSIZE_DEPTH_SHIFT,
 		   val & FIFOSIZE_DEPTH_MASK);
@@ -218,7 +218,7 @@ static int fifo_show(struct seq_file *seq, void *v)
 	seq_puts(seq, "\nPeriodic TXFIFOs:\n");
 
 	for (idx = 1; idx < hsotg->num_of_eps; idx++) {
-		val = readl(regs + DPTXFSIZN(idx));
+		val = dwc2_readl(regs + DPTXFSIZN(idx));
 
 		seq_printf(seq, "\tDPTXFIFO%2d: Size %d, Start 0x%08x\n", idx,
 			   val >> FIFOSIZE_DEPTH_SHIFT,
@@ -270,20 +270,20 @@ static int ep_show(struct seq_file *seq, void *v)
 	/* first show the register state */
 
 	seq_printf(seq, "\tDIEPCTL=0x%08x, DOEPCTL=0x%08x\n",
-		   readl(regs + DIEPCTL(index)),
-		   readl(regs + DOEPCTL(index)));
+		   dwc2_readl(regs + DIEPCTL(index)),
+		   dwc2_readl(regs + DOEPCTL(index)));
 
 	seq_printf(seq, "\tDIEPDMA=0x%08x, DOEPDMA=0x%08x\n",
-		   readl(regs + DIEPDMA(index)),
-		   readl(regs + DOEPDMA(index)));
+		   dwc2_readl(regs + DIEPDMA(index)),
+		   dwc2_readl(regs + DOEPDMA(index)));
 
 	seq_printf(seq, "\tDIEPINT=0x%08x, DOEPINT=0x%08x\n",
-		   readl(regs + DIEPINT(index)),
-		   readl(regs + DOEPINT(index)));
+		   dwc2_readl(regs + DIEPINT(index)),
+		   dwc2_readl(regs + DOEPINT(index)));
 
 	seq_printf(seq, "\tDIEPTSIZ=0x%08x, DOEPTSIZ=0x%08x\n",
-		   readl(regs + DIEPTSIZ(index)),
-		   readl(regs + DOEPTSIZ(index)));
+		   dwc2_readl(regs + DIEPTSIZ(index)),
+		   dwc2_readl(regs + DOEPTSIZ(index)));
 
 	seq_puts(seq, "\n");
 	seq_printf(seq, "mps %d\n", ep->ep.maxpacket);