bcm53xx: add missing patch from r47248 for USB 3.0

Signed-off-by: Hauke Mehrtens <hauke@hauke-m.de> SVN-Revision: 47249
9 years ago · e67b786afe
parent aaa20ae2c2
commit e67b786afe
1 changed files with 62 additions and 0 deletions
--- a/target/linux/bcm53xx/patches-4.1/190-usb-xhci-plat-fix-adding-usb3-lpm-capable-quirk.patch
+++ b/target/linux/bcm53xx/patches-4.1/190-usb-xhci-plat-fix-adding-usb3-lpm-capable-quirk.patch
@ -0,0 +1,62 @@
+From 1420e53fc88673683f8990aa5342e7b2640ce165 Mon Sep 17 00:00:00 2001
+From: Hauke Mehrtens <hauke@hauke-m.de>
+Date: Sun, 18 Oct 2015 19:13:27 +0200
+Subject: [PATCH v3 1/6] usb: xhci: plat: fix adding usb3-lpm-capable quirk
+
+The xhci->quirks member is overwritten in xhci_gen_setup() with the
+quirks given through the module load parameter. Without this patch the
+usb3-lpm-capable quirk will be over written before it gets used. This
+patch moves the quirks code to the xhci_plat_quirks() callback function
+which gets called directly after the quirks member variable is
+overwritten with the module load parameter.
+
+I do not have any hardware which is using usb3-lpm-capabls so I can not
+test this on real hardware.
+
+Signed-off-by: Hauke Mehrtens <hauke@hauke-m.de>
+---
+ drivers/usb/host/xhci-plat.c | 14 ++++++++------
+ 1 file changed, 8 insertions(+), 6 deletions(-)
+
+--- a/drivers/usb/host/xhci-plat.c
+++ b/drivers/usb/host/xhci-plat.c
+@@ -28,12 +28,20 @@ static struct hc_driver __read_mostly xh
+ 
+ static void xhci_plat_quirks(struct device *dev, struct xhci_hcd *xhci)
+ {
+	struct platform_device	*pdev = to_platform_device(dev);
+	struct device_node	*node = pdev->dev.of_node;
+	struct usb_xhci_pdata	*pdata = dev_get_platdata(&pdev->dev);
+
+ 	/*
+ 	 * As of now platform drivers don't provide MSI support so we ensure
+ 	 * here that the generic code does not try to make a pci_dev from our
+ 	 * dev struct in order to setup MSI
+ 	 */
+ 	xhci->quirks |= XHCI_PLAT;
+
+	if ((node && of_property_read_bool(node, "usb3-lpm-capable")) ||
+			(pdata && pdata->usb3_lpm_capable))
+		xhci->quirks |= XHCI_LPM_SUPPORT;
+ }
+ 
+ /* called during probe() after chip reset completes */
+@@ -65,8 +73,6 @@ static int xhci_plat_start(struct usb_hc
+ 
+ static int xhci_plat_probe(struct platform_device *pdev)
+ {
+-	struct device_node	*node = pdev->dev.of_node;
+-	struct usb_xhci_pdata	*pdata = dev_get_platdata(&pdev->dev);
+ 	const struct hc_driver	*driver;
+ 	struct xhci_hcd		*xhci;
+ 	struct resource         *res;
+@@ -144,9 +150,6 @@ static int xhci_plat_probe(struct platfo
+ 		goto dealloc_usb2_hcd;
+ 	}
+ 
+-	if ((node && of_property_read_bool(node, "usb3-lpm-capable")) ||
+-			(pdata && pdata->usb3_lpm_capable))
+-		xhci->quirks |= XHCI_LPM_SUPPORT;
+ 	/*
+ 	 * Set the xHCI pointer before xhci_plat_setup() (aka hcd_driver.reset)
+ 	 * is called by usb_add_hcd().