| Message ID | 20220523090449.14430-4-chunfeng.yun@mediatek.com (mailing list archive) |
|---|---|
| State | New, archived |
| Headers | show |
| Series | [1/4] dt-bindings: usb: mtk-xhci: add support 'resets' property | expand |
Il 23/05/22 11:04, Chunfeng Yun ha scritto: > 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. > > Signed-off-by: Chunfeng Yun <chunfeng.yun@mediatek.com> Reviewed-by: AngeloGioacchino Del Regno <angelogioacchino.delregno@collabora.com>
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))
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. Signed-off-by: Chunfeng Yun <chunfeng.yun@mediatek.com> --- drivers/usb/mtu3/mtu3_plat.c | 7 +++++++ 1 file changed, 7 insertions(+)