Commit 6854ccc4 authored by Cristian Birsan's avatar Cristian Birsan Committed by Greg Kroah-Hartman
Browse files

USB: host: ehci-atmel: Add support for HSIC phy 



Add support for USB Host High Speed Port HSIC phy.

Tested-by: default avatarAlexander Dahl <ada@thorsis.com>
Acked-by: default avatarAlan Stern <stern@rowland.harvard.edu>
Signed-off-by: default avatarCristian Birsan <cristian.birsan@microchip.com>
Link: https://lore.kernel.org/r/20210910163842.1596407-3-cristian.birsan@microchip.com


Signed-off-by: default avatarGreg Kroah-Hartman <gregkh@linuxfoundation.org>
parent 6a9a7a1a

drivers/usb/host/ehci-atmel.c

+8 −0
Original line number Diff line number Diff line
@@ -18,6 +18,8 @@ 
#include <linux/platform_device.h>

#include <linux/usb.h>

#include <linux/usb/hcd.h>

#include <linux/usb/phy.h>

#include <linux/usb/of.h>



#include "ehci.h"
@@ -25,6 +27,9 @@ 


static const char hcd_name[] = "ehci-atmel";



#define EHCI_INSNREG(index)			((index) * 4 + 0x90)

#define EHCI_INSNREG08_HSIC_EN			BIT(2)



/* interface and function clocks */

#define hcd_to_atmel_ehci_priv(h) \

	((struct atmel_ehci_priv *)hcd_to_ehci(h)->priv)
@@ -154,6 +159,9 @@ static int ehci_atmel_drv_probe(struct platform_device *pdev) 
		goto fail_add_hcd;

	device_wakeup_enable(hcd->self.controller);



	if (of_usb_get_phy_mode(pdev->dev.of_node) == USBPHY_INTERFACE_MODE_HSIC)

		writel(EHCI_INSNREG08_HSIC_EN, hcd->regs + EHCI_INSNREG(8));



	return retval;



fail_add_hcd: