Donate to e Foundation | Murena handsets with /e/OS | Own a part of Murena! Learn more

Commit b2f463e1 authored by Pratyush Anand's avatar Pratyush Anand Committed by Greg Kroah-Hartman
Browse files

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: default avatarPratyush Anand <pratyush.anand@st.com>
Signed-off-by: default avatarMathias Nyman <mathias.nyman@linux.intel.com>
Signed-of-by: default avatarFelipe Balbi <balbi@ti.com>
Signed-off-by: default avatarGreg Kroah-Hartman <gregkh@linuxfoundation.org>
parent 20f6fdd0

drivers/usb/dwc3/Kconfig

+7 −0
Original line number Diff line number Diff line
@@ -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

drivers/usb/dwc3/host.c

+14 −0
Original line number Diff line number Diff line
@@ -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");