Commit e84e3e99 authored by Chunfeng Yun's avatar Chunfeng Yun Committed by Greg Kroah-Hartman
Browse files

usb: mtu3: add support controller reset 



Add support controller reset via a reset-controller usually in infracfg,
it's different with the software reset by IPPC which only used to reset MAC,
and it will also reset IPPC meanwhile.

Reviewed-by: default avatarAngeloGioacchino Del Regno <angelogioacchino.delregno@collabora.com>
Signed-off-by: default avatarChunfeng Yun <chunfeng.yun@mediatek.com>
Link: https://lore.kernel.org/r/20220523090449.14430-4-chunfeng.yun@mediatek.com


Signed-off-by: default avatarGreg Kroah-Hartman <gregkh@linuxfoundation.org>
parent 32b615ed

drivers/usb/mtu3/mtu3_plat.c

+7 −0
Original line number Diff line number Diff line
@@ -13,6 +13,7 @@ 
#include <linux/of_irq.h>

#include <linux/platform_device.h>

#include <linux/pm_wakeirq.h>

#include <linux/reset.h>



#include "mtu3.h"

#include "mtu3_dr.h"
@@ -345,6 +346,12 @@ static int mtu3_probe(struct platform_device *pdev) 
		dev_info(dev, "wakeup irq %d\n", ssusb->wakeup_irq);

	}



	ret = device_reset_optional(dev);

	if (ret) {

		dev_err_probe(dev, ret, "failed to reset controller\n");

		goto comm_exit;

	}



	ssusb_ip_sw_reset(ssusb);



	if (IS_ENABLED(CONFIG_USB_MTU3_HOST))