diff options
| author |   Chunfeng Yun <chunfeng.yun@mediatek.com> | 2022-05-23 17:04:49 +0800 |
|---|---|---|
| committer |   Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2022-06-10 11:50:06 +0200 |
| commit | e84e3e99256e2aedab5f45f8e02bc98c891b9188 (patch) | |
| tree | 40d6618cd0bcb0ad3e8f0a959744b4cd1037fffc /drivers/usb/mtu3/mtu3_plat.c | |
| parent | usb: xhci-mtk: add support optional controller reset (diff) | |
| download | wireguard-linux-e84e3e99256e2aedab5f45f8e02bc98c891b9188.tar.xz wireguard-linux-e84e3e99256e2aedab5f45f8e02bc98c891b9188.zip | |
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: 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>
Diffstat (limited to 'drivers/usb/mtu3/mtu3_plat.c')
| -rw-r--r-- | drivers/usb/mtu3/mtu3_plat.c | 7 |
1 files changed, 7 insertions, 0 deletions
diff --git a/drivers/usb/mtu3/mtu3_plat.c b/drivers/usb/mtu3/mtu3_plat.c index 4309ed939178..d14494b30064 100644 --- a/drivers/usb/mtu3/mtu3_plat.c +++ b/drivers/usb/mtu3/mtu3_plat.c @@ -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)) |