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usb: mtu3: add support controller reset

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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: AngeloGioacchino Del Regno <angelogioacchino.delregno@collabora.com>
Signed-off-by: Chunfeng Yun <chunfeng.yun@mediatek.com>
Link: https://lore.kernel.org/r/20220523090449.14430-4-chunfeng.yun@mediatek.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
This commit is contained in:
Chunfeng Yun 2022-05-23 17:04:49 +08:00 committed by Greg Kroah-Hartman
parent 32b615ed4b
commit e84e3e9925
1 changed files with 7 additions and 0 deletions
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7
drivers/usb/mtu3/mtu3_plat.c
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@ -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))