usb: renesas_usbhs: Fix receiving data corrupt on R-Car Gen3 with dmac

Since R-Car Gen3 SoC has the USB-DMAC, this driver should set
dparam->has_usb_dmac to 1. Otherwise, behavior of this driver and
the usb-dmac driver will be mismatch, then sometimes receiving data will
be corrupt.

Fixes: de18757e272d ("usb: renesas_usbhs: add R-Car Gen3 power control")
Cc: <stable@vger.kernel.org> # v4.5+
Signed-off-by: Yoshihiro Shimoda <yoshihiro.shimoda.uh@renesas.com>
Signed-off-by: Felipe Balbi <felipe.balbi@linux.intel.com>

diff --git a/drivers/usb/renesas_usbhs/common.c b/drivers/usb/renesas_usbhs/common.c
index 8fbbc2d..ac67bab 100644 (file)
--- a/drivers/usb/renesas_usbhs/common.c
+++ b/drivers/usb/renesas_usbhs/common.c
@@ -514,7 +514,8 @@ static struct renesas_usbhs_platform_info *usbhs_parse_dt(struct device *dev)
        if (gpio > 0)
                dparam->enable_gpio = gpio;
 
-       if (dparam->type == USBHS_TYPE_RCAR_GEN2)
+       if (dparam->type == USBHS_TYPE_RCAR_GEN2 ||
+           dparam->type == USBHS_TYPE_RCAR_GEN3)
                dparam->has_usb_dmac = 1;
 
        return info;