diff options
| author | Pratyush Anand <pratyush.anand@st.com> | 2014-07-04 17:01:26 +0300 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2014-07-09 15:41:34 -0700 |
| commit | b2f463e1300016785d63475c56f5807e2be00934 (patch) | |
| tree | 554e89ede124219e365cf784ed2a3e31c4c3c3aa /drivers/usb/dwc3 | |
| parent | 20f6fdd01c2c0de9cc1109083222edded24c5350 (diff) | |
| download | op-kernel-dev-b2f463e1300016785d63475c56f5807e2be00934.zip op-kernel-dev-b2f463e1300016785d63475c56f5807e2be00934.tar.gz | |
dwc3: host: Enable USB3 LPM capability
All dwc3 based xhci host controller supports USB3.0 LPM functionality.
Therefore enable it in platform data for all dwc3 based xhci device if
DWC3_HOST_USB3_LPM_ENABLE is selected in Kconfig.
Signed-off-by: Pratyush Anand <pratyush.anand@st.com>
Signed-off-by: Mathias Nyman <mathias.nyman@linux.intel.com>
Signed-of-by: Felipe Balbi <balbi@ti.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Diffstat (limited to 'drivers/usb/dwc3')
| -rw-r--r-- | drivers/usb/dwc3/Kconfig | 7 | ||||
| -rw-r--r-- | drivers/usb/dwc3/host.c | 14 |
2 files changed, 21 insertions, 0 deletions
diff --git a/drivers/usb/dwc3/Kconfig b/drivers/usb/dwc3/Kconfig index 261c3b4..785510a 100644 --- a/drivers/usb/dwc3/Kconfig +++ b/drivers/usb/dwc3/Kconfig @@ -93,4 +93,11 @@ config USB_DWC3_VERBOSE help Say Y here to enable verbose debugging messages on DWC3 Driver. +config DWC3_HOST_USB3_LPM_ENABLE + bool "Enable USB3 LPM Capability" + depends on USB_DWC3_HOST=y || USB_DWC3_DUAL_ROLE=y + default n + help + Select this when you want to enable USB3 LPM with dwc3 xhci host. + endif diff --git a/drivers/usb/dwc3/host.c b/drivers/usb/dwc3/host.c index 32db328..dcb8ca0 100644 --- a/drivers/usb/dwc3/host.c +++ b/drivers/usb/dwc3/host.c @@ -16,12 +16,14 @@ */ #include <linux/platform_device.h> +#include <linux/usb/xhci_pdriver.h> #include "core.h" int dwc3_host_init(struct dwc3 *dwc) { struct platform_device *xhci; + struct usb_xhci_pdata pdata; int ret; xhci = platform_device_alloc("xhci-hcd", PLATFORM_DEVID_AUTO); @@ -46,6 +48,18 @@ int dwc3_host_init(struct dwc3 *dwc) goto err1; } + memset(&pdata, 0, sizeof(pdata)); + +#ifdef CONFIG_DWC3_HOST_USB3_LPM_ENABLE + pdata.usb3_lpm_capable = 1; +#endif + + ret = platform_device_add_data(xhci, &pdata, sizeof(pdata)); + if (ret) { + dev_err(dwc->dev, "couldn't add platform data to xHCI device\n"); + goto err1; + } + ret = platform_device_add(xhci); if (ret) { dev_err(dwc->dev, "failed to register xHCI device\n"); |
