linux-kernel - [PATCH v2 16/16] usb: dwc3: enable usb suspend phy

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: Windows password security audit tool. GUI, reports in PDF.

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

Message-ID: <1413536021-4886-17-git-send-email-ray.huang@amd.com>
Date:	Fri, 17 Oct 2014 16:53:41 +0800
From:	Huang Rui <ray.huang@....com>
To:	Felipe Balbi <balbi@...com>,
	Alan Stern <stern@...land.harvard.edu>,
	Bjorn Helgaas <bhelgaas@...gle.com>,
	Greg Kroah-Hartman <gregkh@...uxfoundation.org>
CC:	Paul Zimmerman <Paul.Zimmerman@...opsys.com>,
	Heikki Krogerus <heikki.krogerus@...ux.intel.com>,
	Vincent Wan <vincent.wan@....com>, Tony Li <tony.li@....com>,
	<linux-usb@...r.kernel.org>, <linux-pci@...r.kernel.org>,
	<linux-kernel@...r.kernel.org>, Huang Rui <ray.huang@....com>
Subject: [PATCH v2 16/16] usb: dwc3: enable usb suspend phy

AMD NL needs to suspend usb3 ss phy, but this doesn't enable on simulation
board.

Signed-off-by: Huang Rui <ray.huang@....com>
---
 drivers/usb/dwc3/core.c          | 7 ++++++-
 drivers/usb/dwc3/dwc3-pci.c      | 3 ++-
 drivers/usb/dwc3/platform_data.h | 1 +
 3 files changed, 9 insertions(+), 2 deletions(-)

diff --git a/drivers/usb/dwc3/core.c b/drivers/usb/dwc3/core.c
index 3ccfe41..4a98696 100644
--- a/drivers/usb/dwc3/core.c
+++ b/drivers/usb/dwc3/core.c
@@ -395,6 +395,9 @@ static void dwc3_phy_setup(struct dwc3 *dwc)
 	if (dwc->quirks & DWC3_QUIRK_TX_DEEPH)
 		reg |= DWC3_GUSB3PIPECTL_TX_DEEPH(1);
 
+	if (dwc->quirks & DWC3_QUIRK_SUSPHY)
+		reg |= DWC3_GUSB3PIPECTL_SUSPHY;
+
 	dwc3_writel(dwc->regs, DWC3_GUSB3PIPECTL(0), reg);
 
 	mdelay(100);
@@ -496,8 +499,10 @@ static int dwc3_core_init(struct dwc3 *dwc)
 		dwc->is_fpga = true;
 	}
 
-	if ((dwc->quirks & DWC3_QUIRK_AMD_NL) && dwc->is_fpga)
+	if ((dwc->quirks & DWC3_QUIRK_AMD_NL) && dwc->is_fpga) {
 		dwc->quirks |= DWC3_QUIRK_DISSCRAMBLE;
+		dwc->quirks &= ~DWC3_QUIRK_SUSPHY;
+	}
 
 	if (dwc->quirks & DWC3_QUIRK_DISSCRAMBLE)
 		reg |= DWC3_GCTL_DISSCRAMBLE;
diff --git a/drivers/usb/dwc3/dwc3-pci.c b/drivers/usb/dwc3/dwc3-pci.c
index 146eb2f..71401a3 100644
--- a/drivers/usb/dwc3/dwc3-pci.c
+++ b/drivers/usb/dwc3/dwc3-pci.c
@@ -157,7 +157,8 @@ static int dwc3_pci_probe(struct pci_dev *pci,
 			| DWC3_QUIRK_DEPOCHANGE
 			| DWC3_QUIRK_LFPSFILT
 			| DWC3_QUIRK_RX_DETOPOLL
-			| DWC3_QUIRK_TX_DEEPH;
+			| DWC3_QUIRK_TX_DEEPH
+			| DWC3_QUIRK_SUSPHY;
 	}
 
 	ret = platform_device_add_resources(dwc3, res, ARRAY_SIZE(res));
diff --git a/drivers/usb/dwc3/platform_data.h b/drivers/usb/dwc3/platform_data.h
index 54f0e45..f68cd97 100644
--- a/drivers/usb/dwc3/platform_data.h
+++ b/drivers/usb/dwc3/platform_data.h
@@ -38,5 +38,6 @@ struct dwc3_platform_data {
 #define DWC3_QUIRK_LFPSFILT		(1 << 7)
 #define DWC3_QUIRK_RX_DETOPOLL		(1 << 8)
 #define DWC3_QUIRK_TX_DEEPH		(1 << 9)
+#define DWC3_QUIRK_SUSPHY		(1 << 10)
 
 };
-- 
1.9.1

--
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to majordomo@...r.kernel.org
More majordomo info at  http://vger.kernel.org/majordomo-info.html
Please read the FAQ at  http://www.tux.org/lkml/