Re: [PATCH] usb: dwc2: Force 8bit UTMI width for Samsung Exynos SoCs

Minas Harutyunyan <Minas.Harutyunyan@xxxxxxxxxxxx> · Tue, 7 May 2019 10:22:33 +0400

On 5/6/2019 5:01 PM, Marek Szyprowski wrote:
Samsung Exynos SoCs require to force UTMI width to 8bit, otherwise the
host side of the shared USB2 PHY doesn't work.

Reported-by: Krzysztof Kozlowski <krzk@xxxxxxxxxx>
Fixes: 707d80f0a3c5 ("usb: dwc2: gadget: Replace phyif with phy_utmi_width")
Signed-off-by: Marek Szyprowski <m.szyprowski@xxxxxxxxxxx>

Acked-by: Minas Harutyunyan <hminas@xxxxxxxxxxxx>

---
  drivers/usb/dwc2/params.c | 1 +
  1 file changed, 1 insertion(+)

diff --git a/drivers/usb/dwc2/params.c b/drivers/usb/dwc2/params.c
index 6900eea57526..9ece4affb9d4 100644
--- a/drivers/usb/dwc2/params.c
+++ b/drivers/usb/dwc2/params.c
@@ -76,6 +76,7 @@ static void dwc2_set_s3c6400_params(struct dwc2_hsotg *hsotg)
  	struct dwc2_core_params *p = &hsotg->params;
  
  	p->power_down = 0;
+	p->phy_utmi_width = 8;
  }
  
  static void dwc2_set_rk_params(struct dwc2_hsotg *hsotg)








