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ramips: kernel: fix awake-rt305x-dwc2 patch

At this point in v5.4 kernel we cannot use dwc2_readl() and
dwc2_writel() since they rely on the value hsotg->needs_byte_swap
which cannot be obtained before the controller wakes up.
We should use readl() and writel() to wake up the controller before
calling dwc2_check_core_endianness().

Fixes: 6be0da90a165 ("ramips: refresh patches")
Signed-off-by: Alexey Dobrovolsky <[email protected]>
[fixed Fixes: tag]
Signed-off-by: Petr Štetiar <[email protected]>
Alexey Dobrovolsky 5 years ago
parent
commit
ecda6b791b

+ 7 - 7
target/linux/ramips/patches-5.4/0069-awake-rt305x-dwc2-controller.patch

@@ -1,15 +1,15 @@
 --- a/drivers/usb/dwc2/platform.c
 +++ b/drivers/usb/dwc2/platform.c
-@@ -432,6 +432,12 @@ static int dwc2_driver_probe(struct plat
- 
- 	hsotg->needs_byte_swap = dwc2_check_core_endianness(hsotg);
+@@ -430,6 +430,12 @@ static int dwc2_driver_probe(struct plat
+	if (retval)
+		return retval;
  
 +	/* Enable USB port before any regs access */
-+	if (dwc2_readl(hsotg, PCGCTL) & 0x0f) {
-+		dwc2_writel(0x00, hsotg, PCGCTL);
++	if (readl(hsotg->regs + PCGCTL) & 0x0f) {
++		writel(0x00, hsotg->regs + PCGCTL);
 +		/* TODO: mdelay(25) here? vendor driver don't use it */
 +	}
 +
+ 	hsotg->needs_byte_swap = dwc2_check_core_endianness(hsotg);
+
  	retval = dwc2_get_dr_mode(hsotg);
- 	if (retval)
- 		goto error;