linux-kernel - [PATCH] usb: dwc2: Force 8bit UTMI width for Samsung Exynos SoCs

lists.openwall.net		lists / announce owl-users owl-dev john-users john-dev passwdqc-users yescrypt popa3d-users / oss-security kernel-hardening musl sabotage tlsify passwords / crypt-dev xvendor / Bugtraq Full-Disclosure linux-kernel linux-netdev linux-ext4 linux-hardening linux-cve-announce PHC
Open Source and information security mailing list archives

Hash Suite for Android: free password hash cracker in your pocket

[<prev] [next>] [<thread-prev] [thread-next>] [day] [month] [year] [list]

Message-id: <20190506130046.20898-1-m.szyprowski@samsung.com>
Date:   Mon, 06 May 2019 15:00:46 +0200
From:   Marek Szyprowski <m.szyprowski@...sung.com>
To:     linux-usb@...r.kernel.org, linux-samsung-soc@...r.kernel.org,
        linux-kernel@...r.kernel.org
Cc:     Marek Szyprowski <m.szyprowski@...sung.com>,
        Minas Harutyunyan <hminas@...opsys.com>,
        Felipe Balbi <felipe.balbi@...ux.intel.com>,
        Bartlomiej Zolnierkiewicz <b.zolnierkie@...sung.com>,
        Jules Maselbas <jmaselbas@...ray.eu>,
        Krzysztof Kozlowski <krzk@...nel.org>
Subject: [PATCH] usb: dwc2: Force 8bit UTMI width for Samsung Exynos SoCs

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@...nel.org>
Fixes: 707d80f0a3c5 ("usb: dwc2: gadget: Replace phyif with phy_utmi_width")
Signed-off-by: Marek Szyprowski <m.szyprowski@...sung.com>
---
 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