[PATCH 3/6] usb: mtu3: support ip-sleep wakeup for MT8183

[Chunfeng Yun]

Support USB wakeup by ip-sleep mode for MT8183, it's similar to
MT8173

Signed-off-by: Chunfeng Yun <chunfeng....@mediatek.com>
---
 drivers/usb/mtu3/mtu3_host.c | 14 +++++++++++++-
 1 file changed, 13 insertions(+), 1 deletion(-)

diff --git a/drivers/usb/mtu3/mtu3_host.c b/drivers/usb/mtu3/mtu3_host.c
index c871b94f3e6f..001b17aeb1eb 100644
--- a/drivers/usb/mtu3/mtu3_host.c
+++ b/drivers/usb/mtu3/mtu3_host.c
@@ -18,6 +18,12 @@
 #include "mtu3.h"
 #include "mtu3_dr.h"
 
+/* mt8183 etc */
+#define PERI_WK_CTRL0  0x20
+#define WC0_IS_C(x)    (((x) & 0xf) << 28)  /* cycle debounce */
+#define WC0_IS_EN      BIT(12)
+#define WC0_IS_P       BIT(6)  /* polarity for ip sleep */
+
 /* mt8173 etc */
 #define PERI_WK_CTRL1  0x4
 #define WC1_IS_C(x)    (((x) & 0xf) << 26)  /* cycle debounce */
@@ -30,7 +36,8 @@
 #define SSC_SPM_INT_EN         BIT(1)
 
 enum ssusb_uwk_vers {
-       SSUSB_UWK_V1 = 1,
+       SSUSB_UWK_V0 = 0,
+       SSUSB_UWK_V1,
        SSUSB_UWK_V2,
 };
 
@@ -43,6 +50,11 @@ static void ssusb_wakeup_ip_sleep_set(struct ssusb_mtk 
*ssusb, bool enable)
        u32 reg, msk, val;
 
        switch (ssusb->uwk_vers) {
+       case SSUSB_UWK_V0:
+               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_V1:
                reg = ssusb->uwk_reg_base + PERI_WK_CTRL1;
                msk = WC1_IS_EN | WC1_IS_C(0xf) | WC1_IS_P;
-- 
2.23.0