Add support ip-sleep wakeup for MT8183, it's similar to MT8173,
and it's also a specific one, but not follow IPM rule.
Due to the index 2 already used by many DTS, it's better to keep
it unchanged for backward compatible, treat specific ones without
following IPM rule as revision 1.x, meanwhile reserve 3~10 for later
revision that follows the IPM rule.

Signed-off-by: Chunfeng Yun <chunfeng....@mediatek.com>
---
 drivers/usb/mtu3/mtu3_host.c | 12 ++++++++++++
 1 file changed, 12 insertions(+)

diff --git a/drivers/usb/mtu3/mtu3_host.c b/drivers/usb/mtu3/mtu3_host.c
index c871b94f3e6f..e35b17e5f58e 100644
--- a/drivers/usb/mtu3/mtu3_host.c
+++ b/drivers/usb/mtu3/mtu3_host.c
@@ -24,6 +24,12 @@
 #define WC1_IS_EN      BIT(25)
 #define WC1_IS_P       BIT(6)  /* polarity for ip sleep */
 
+/* mt8183 */
+#define PERI_WK_CTRL0  0x0
+#define WC0_IS_C(x)    (((x) & 0xf) << 28)  /* cycle debounce */
+#define WC0_IS_P       BIT(12) /* polarity */
+#define WC0_IS_EN      BIT(6)
+
 /* mt2712 etc */
 #define PERI_SSUSB_SPM_CTRL    0x0
 #define SSC_IP_SLEEP_EN        BIT(4)
@@ -32,6 +38,7 @@
 enum ssusb_uwk_vers {
        SSUSB_UWK_V1 = 1,
        SSUSB_UWK_V2,
+       SSUSB_UWK_V11 = 11,     /* specific revision 1.1 */
 };
 
 /*
@@ -48,6 +55,11 @@ static void ssusb_wakeup_ip_sleep_set(struct ssusb_mtk 
*ssusb, bool enable)
                msk = WC1_IS_EN | WC1_IS_C(0xf) | WC1_IS_P;
                val = enable ? (WC1_IS_EN | WC1_IS_C(0x8)) : 0;
                break;
+       case SSUSB_UWK_V11:
+               reg = ssusb->uwk_reg_base + PERI_WK_CTRL0;
+               msk = WC0_IS_EN | WC0_IS_C(0xf) | WC0_IS_P;
+               val = enable ? (WC0_IS_EN | WC0_IS_C(0x8)) : 0;
+               break;
        case SSUSB_UWK_V2:
                reg = ssusb->uwk_reg_base + PERI_SSUSB_SPM_CTRL;
                msk = SSC_IP_SLEEP_EN | SSC_SPM_INT_EN;
-- 
2.18.0

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