blob: c404b7d609dc85b5beeb86d2891a1b11a16728f5 (
plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
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().
|
