[PATCH v2] usb: dwc2: Force 8bit UTMI width for Samsung Exynos SoCs

From: Marek Szyprowski
Date: Fri Jun 14 2019 - 02:57:52 EST


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>
Acked-by: Krzysztof Kozlowski <krzk@xxxxxxxxxx>
Tested-by: Krzysztof Kozlowski <krzk@xxxxxxxxxx>
---
v2:
- added collected tags
---
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)
--
2.17.1