[PATCH 2/4] xhci: Check for XHCI_COMP_MODE_QUIRK when disabling D3cold

From: Andrew Bresticker
Date: Wed Jul 09 2014 - 21:07:11 EST


Instead of calling xhci_compliance_mode_recovery_timer_quirk_check() again
in the PCI suspend path, just check for XHCI_COMP_MODE_QUIRK which will
have been set based on xhci_compliance_mode_recovery_timer_quirk_check()
in xhci_init().

Signed-off-by: Andrew Bresticker <abrestic@xxxxxxxxxxxx>
---
drivers/usb/host/xhci-pci.c | 2 +-
drivers/usb/host/xhci.c | 3 ++-
drivers/usb/host/xhci.h | 3 ---
3 files changed, 3 insertions(+), 5 deletions(-)

diff --git a/drivers/usb/host/xhci-pci.c b/drivers/usb/host/xhci-pci.c
index 97648e4..d06ffe7 100644
--- a/drivers/usb/host/xhci-pci.c
+++ b/drivers/usb/host/xhci-pci.c
@@ -277,7 +277,7 @@ static int xhci_pci_suspend(struct usb_hcd *hcd, bool do_wakeup)
* Systems with the TI redriver that loses port status change events
* need to have the registers polled during D3, so avoid D3cold.
*/
- if (xhci_compliance_mode_recovery_timer_quirk_check())
+ if (xhci->quirks & XHCI_COMP_MODE_QUIRK)
pdev->no_d3cold = true;

return xhci_suspend(xhci);
diff --git a/drivers/usb/host/xhci.c b/drivers/usb/host/xhci.c
index 8de75b7..f681087 100644
--- a/drivers/usb/host/xhci.c
+++ b/drivers/usb/host/xhci.c
@@ -491,7 +491,7 @@ static void compliance_mode_recovery_timer_init(struct xhci_hcd *xhci)
* Systems:
* Vendor: Hewlett-Packard -> System Models: Z420, Z620 and Z820
*/
-bool xhci_compliance_mode_recovery_timer_quirk_check(void)
+static bool xhci_compliance_mode_recovery_timer_quirk_check(void)
{
const char *dmi_product_name, *dmi_sys_vendor;

@@ -4936,6 +4936,7 @@ static const struct hc_driver xhci_hc_driver = {

void xhci_init_driver(struct hc_driver *drv, int (*setup_fn)(struct usb_hcd *))
{
+ BUG_ON(!setup_fn);
*drv = xhci_hc_driver;
drv->reset = setup_fn;
}
diff --git a/drivers/usb/host/xhci.h b/drivers/usb/host/xhci.h
index 0d9b2cf..902f55b 100644
--- a/drivers/usb/host/xhci.h
+++ b/drivers/usb/host/xhci.h
@@ -1886,7 +1886,4 @@ struct xhci_input_control_ctx *xhci_get_input_control_ctx(struct xhci_hcd *xhci,
struct xhci_slot_ctx *xhci_get_slot_ctx(struct xhci_hcd *xhci, struct xhci_container_ctx *ctx);
struct xhci_ep_ctx *xhci_get_ep_ctx(struct xhci_hcd *xhci, struct xhci_container_ctx *ctx, unsigned int ep_index);

-/* xHCI quirks */
-bool xhci_compliance_mode_recovery_timer_quirk_check(void);
-
#endif /* __LINUX_XHCI_HCD_H */
--
2.0.0.526.g5318336

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