From: Sneeker Yeh <sneeker.yeh@gmail.com>
To: Rob Herring <robh+dt@kernel.org>, Pawel Moll <pawel.moll@arm.com>,
Mark Rutland <mark.rutland@arm.com>,
Ian Campbell <ijc+devicetree@hellion.org.uk>,
Kumar Gala <galak@codeaurora.org>, Felipe Balbi <balbi@ti.com>,
Greg Kroah-Hartman <gregkh@linuxfoundation.org>,
Mathias Nyman <mathias.nyman@intel.com>,
Grant Likely <grant.likely@linaro.org>,
Huang Rui <ray.huang@amd.com>,
Kishon Vijay Abraham I <kishon@ti.com>,
devicetree@vger.kernel.org, linux-kernel@vger.kernel.org,
linux-usb@vger.kernel.org, linux-omap@vger.kernel.org
Cc: Andy Green <andy.green@linaro.org>,
Jassi Brar <jaswinder.singh@linaro.org>,
Sneeker Yeh <Sneeker.Yeh@tw.fujitsu.com>
Subject: [PATCH v4 2/5] xhci: Platform: Set Synopsis device disconnection quirk based on platform data
Date: Tue, 17 Feb 2015 13:41:34 +0800 [thread overview]
Message-ID: <1424151697-2084-3-git-send-email-Sneeker.Yeh@tw.fujitsu.com> (raw)
In-Reply-To: <1424151697-2084-1-git-send-email-Sneeker.Yeh@tw.fujitsu.com>
If an xhci platform has Synopsis device disconnection errata then enable
XHCI_DISCONNECT_QUIRK quirk flag.
Signed-off-by: Sneeker Yeh <Sneeker.Yeh@tw.fujitsu.com>
---
drivers/usb/host/xhci-plat.c | 3 +++
include/linux/usb/xhci_pdriver.h | 4 ++++
2 files changed, 7 insertions(+)
diff --git a/drivers/usb/host/xhci-plat.c b/drivers/usb/host/xhci-plat.c
index 08d402b..40beb95 100644
--- a/drivers/usb/host/xhci-plat.c
+++ b/drivers/usb/host/xhci-plat.c
@@ -147,6 +147,9 @@ static int xhci_plat_probe(struct platform_device *pdev)
if ((node && of_property_read_bool(node, "usb3-lpm-capable")) ||
(pdata && pdata->usb3_lpm_capable))
xhci->quirks |= XHCI_LPM_SUPPORT;
+
+ if (pdata && pdata->delay_portcsc_clear)
+ xhci->quirks |= XHCI_DISCONNECT_QUIRK;
/*
* Set the xHCI pointer before xhci_plat_setup() (aka hcd_driver.reset)
* is called by usb_add_hcd().
diff --git a/include/linux/usb/xhci_pdriver.h b/include/linux/usb/xhci_pdriver.h
index 376654b..a37a3a5 100644
--- a/include/linux/usb/xhci_pdriver.h
+++ b/include/linux/usb/xhci_pdriver.h
@@ -18,10 +18,14 @@
*
* @usb3_lpm_capable: determines if this xhci platform supports USB3
* LPM capability
+ * @delay_portcsc_clear: determines if Synopsis USB3 core has errata in
+ * "DWC_USB3_SUSPEND_ON_DISCONNECT_EN=1" hardware
+ * configuration.
*
*/
struct usb_xhci_pdata {
unsigned usb3_lpm_capable:1;
+ unsigned delay_portcsc_clear:1;
};
#endif /* __USB_CORE_XHCI_PDRIVER_H */
--
1.7.9.5
next prev parent reply other threads:[~2015-02-17 5:42 UTC|newest]
Thread overview: 18+ messages / expand[flat|nested] mbox.gz Atom feed top
2015-02-17 5:41 [PATCH v4 0/5] Add support for Fujitsu USB host controller Sneeker Yeh
2015-02-17 5:41 ` [PATCH v4 1/5] xhci: add a quirk for device disconnection errata for Synopsis Designware USB3 core Sneeker Yeh
2015-02-18 8:47 ` Mathias Nyman
2015-02-18 8:47 ` Mathias Nyman
2015-02-18 14:02 ` Sneeker Yeh
2015-02-18 14:02 ` Sneeker Yeh
2015-02-18 14:33 ` Felipe Balbi
2015-02-18 14:33 ` Felipe Balbi
2015-02-18 14:39 ` Sneeker Yeh
2015-02-18 14:42 ` Felipe Balbi
2015-02-18 14:42 ` Felipe Balbi
2015-02-17 5:41 ` Sneeker Yeh [this message]
2015-02-17 5:41 ` [PATCH v4 3/5] usb: dwc3: add revision number DWC3_REVISION_290A and DWC3_REVISION_300A Sneeker Yeh
2015-02-17 5:41 ` [PATCH v4 4/5] usb: dwc3: Add quirk for Synopsis device disconnection errata Sneeker Yeh
2015-02-17 5:41 ` [PATCH v4 5/5] usb: dwc3: add Fujitsu Specific Glue layer Sneeker Yeh
2015-02-17 19:26 ` Felipe Balbi
2015-02-17 19:26 ` Felipe Balbi
2015-02-18 13:55 ` Sneeker Yeh
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