diff options
| author | Peter Chen <peter.chen@nxp.com> | 2018-10-15 17:02:57 +0800 |
|---|---|---|
| committer | Peter Chen <peter.chen@nxp.com> | 2018-12-11 09:12:29 +0800 |
| commit | 014abe34a9095daaa6cbb2693ee90bbb54674693 (patch) | |
| tree | b31dd99dda4138a1c95f0c350382b60188e72a2f /drivers/usb | |
| parent | e67ebf1b3815b2d1fc505dba182761c0be6c179d (diff) | |
| download | linux-0-day-014abe34a9095daaa6cbb2693ee90bbb54674693.tar.gz linux-0-day-014abe34a9095daaa6cbb2693ee90bbb54674693.tar.xz | |
usb: chipidea: add flag for imx hsic implementation
NXP (Freecale) imx HSIC design has some special requirements, add
some flags at host code to handle them.
Reviewed-by: Frieder Schrempf <frieder.schrempf@kontron.de>
Tested-by: Frieder Schrempf <frieder.schrempf@kontron.de>
Signed-off-by: Peter Chen <peter.chen@nxp.com>
Diffstat (limited to 'drivers/usb')
| -rw-r--r-- | drivers/usb/chipidea/host.c | 17 |
1 files changed, 17 insertions, 0 deletions
diff --git a/drivers/usb/chipidea/host.c b/drivers/usb/chipidea/host.c index d858a82c4f44e..028a3574266ab 100644 --- a/drivers/usb/chipidea/host.c +++ b/drivers/usb/chipidea/host.c @@ -170,6 +170,11 @@ static int host_start(struct ci_hdrc *ci) otg->host = &hcd->self; hcd->self.otg_port = 1; } + + if (ci->platdata->notify_event && + (ci->platdata->flags & CI_HDRC_IMX_IS_HSIC)) + ci->platdata->notify_event + (ci, CI_HDRC_IMX_HSIC_ACTIVE_EVENT); } return ret; @@ -218,6 +223,8 @@ void ci_hdrc_host_destroy(struct ci_hdrc *ci) static int ci_ehci_bus_suspend(struct usb_hcd *hcd) { struct ehci_hcd *ehci = hcd_to_ehci(hcd); + struct device *dev = hcd->self.controller; + struct ci_hdrc *ci = dev_get_drvdata(dev); int port; u32 tmp; @@ -249,6 +256,16 @@ static int ci_ehci_bus_suspend(struct usb_hcd *hcd) * It needs a short delay between set RS bit and PHCD. */ usleep_range(150, 200); + /* + * Need to clear WKCN and WKOC for imx HSIC, + * otherwise, there will be wakeup event. + */ + if (ci->platdata->flags & CI_HDRC_IMX_IS_HSIC) { + tmp = ehci_readl(ehci, reg); + tmp &= ~(PORT_WKDISC_E | PORT_WKCONN_E); + ehci_writel(ehci, tmp, reg); + } + break; } } |