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64 lines
2.3 KiB
Diff
64 lines
2.3 KiB
Diff
From 1420e53fc88673683f8990aa5342e7b2640ce165 Mon Sep 17 00:00:00 2001
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From: Hauke Mehrtens <hauke@hauke-m.de>
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Date: Sun, 18 Oct 2015 19:13:27 +0200
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Subject: [PATCH v3 1/6] usb: xhci: plat: fix adding usb3-lpm-capable quirk
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The xhci->quirks member is overwritten in xhci_gen_setup() with the
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quirks given through the module load parameter. Without this patch the
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usb3-lpm-capable quirk will be over written before it gets used. This
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patch moves the quirks code to the xhci_plat_quirks() callback function
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which gets called directly after the quirks member variable is
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overwritten with the module load parameter.
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I do not have any hardware which is using usb3-lpm-capabls so I can not
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test this on real hardware.
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Signed-off-by: Hauke Mehrtens <hauke@hauke-m.de>
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---
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drivers/usb/host/xhci-plat.c | 14 ++++++++------
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1 file changed, 8 insertions(+), 6 deletions(-)
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--- a/drivers/usb/host/xhci-plat.c
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+++ b/drivers/usb/host/xhci-plat.c
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@@ -38,12 +38,20 @@ static const struct xhci_driver_override
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static void xhci_plat_quirks(struct device *dev, struct xhci_hcd *xhci)
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{
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+ struct platform_device *pdev = to_platform_device(dev);
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+ struct device_node *node = pdev->dev.of_node;
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+ struct usb_xhci_pdata *pdata = dev_get_platdata(&pdev->dev);
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+
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/*
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* As of now platform drivers don't provide MSI support so we ensure
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* here that the generic code does not try to make a pci_dev from our
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* dev struct in order to setup MSI
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*/
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xhci->quirks |= XHCI_PLAT;
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+
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+ if ((node && of_property_read_bool(node, "usb3-lpm-capable")) ||
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+ (pdata && pdata->usb3_lpm_capable))
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+ xhci->quirks |= XHCI_LPM_SUPPORT;
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}
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/* called during probe() after chip reset completes */
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@@ -75,8 +83,6 @@ static int xhci_plat_start(struct usb_hc
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static int xhci_plat_probe(struct platform_device *pdev)
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{
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- struct device_node *node = pdev->dev.of_node;
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- struct usb_xhci_pdata *pdata = dev_get_platdata(&pdev->dev);
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const struct hc_driver *driver;
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struct xhci_hcd *xhci;
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struct resource *res;
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@@ -155,10 +161,6 @@ static int xhci_plat_probe(struct platfo
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goto disable_clk;
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}
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- if ((node && of_property_read_bool(node, "usb3-lpm-capable")) ||
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- (pdata && pdata->usb3_lpm_capable))
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- xhci->quirks |= XHCI_LPM_SUPPORT;
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-
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if (HCC_MAX_PSA(xhci->hcc_params) >= 4)
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xhci->shared_hcd->can_do_streams = 1;
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