diff options
| author | Pratyush Anand <pratyush.anand@st.com> | 2014-07-04 17:01:26 +0300 |
|---|---|---|
| committer | Mark Brown <broonie@kernel.org> | 2014-12-08 17:51:14 +0000 |
| commit | 7752b9c7dd46743846ee2f3522baa9350fe8d1e4 (patch) | |
| tree | ee0cce8918a8dfcf64a40d01dd5c5d4b7266e579 | |
| parent | 9524c3c1b493d536bbeb8334958e78719117c854 (diff) | |
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>
(cherry picked from commit b2f463e1300016785d63475c56f5807e2be00934)
Signed-off-by: Mark Brown <broonie@kernel.org>
| -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 e2c730fc9a90..b78ffc281d36 100644 --- a/drivers/usb/dwc3/Kconfig +++ b/drivers/usb/dwc3/Kconfig @@ -90,4 +90,11 @@ 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 32db328cc769..dcb8ca084598 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"); |