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- 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
- @@ -38,12 +38,20 @@ static const struct xhci_driver_override
-
- 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 */
- @@ -75,8 +83,6 @@ 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;
- @@ -155,10 +161,6 @@ static int xhci_plat_probe(struct platfo
- goto disable_clk;
- }
-
- - if ((node && of_property_read_bool(node, "usb3-lpm-capable")) ||
- - (pdata && pdata->usb3_lpm_capable))
- - xhci->quirks |= XHCI_LPM_SUPPORT;
- -
- if (HCC_MAX_PSA(xhci->hcc_params) >= 4)
- xhci->shared_hcd->can_do_streams = 1;
-
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