[PATCH v2 4/4] usb: mtu3: add support remote wakeup of mt8196

Chunfeng Yun
2025-01-21T14:50:29Z

There are three USB controllers on mt8196, each controller's wakeup
control is different, add some specific versions for them.
Here add only for dual-role controllers.

Signed-off-by: Chunfeng Yun <chunfeng.yun@mediatek.com>
---
v2: add wakeup for dual-role controllers
---
drivers/usb/mtu3/mtu3_host.c | 17 +++++++++++++++++
1 file changed, 17 insertions(+)

diff --git a/drivers/usb/mtu3/mtu3_host.c b/drivers/usb/mtu3/mtu3_host.c
index 7c657ea2dabd..d65b0f318436 100644
--- a/drivers/usb/mtu3/mtu3_host.c
+++ b/drivers/usb/mtu3/mtu3_host.c
@@ -46,6 +46,11 @@
#define WC1_IS_P_95 BIT(12)
#define WC1_IS_EN_P0_95 BIT(6)

+/* mt8196 */
+#define PERI_WK_CTRL0_8196 0x08
+#define WC0_IS_EN_P0_96 BIT(0)
+#define WC0_IS_EN_P1_96 BIT(7)
+
/* mt2712 etc */
#define PERI_SSUSB_SPM_CTRL 0x0
#define SSC_IP_SLEEP_EN BIT(4)
@@ -59,6 +64,8 @@ enum ssusb_uwk_vers {
SSUSB_UWK_V1_3, /* mt8195 IP0 */
SSUSB_UWK_V1_5 = 105, /* mt8195 IP2 */
SSUSB_UWK_V1_6, /* mt8195 IP3 */
+ SSUSB_UWK_V1_7, /* mt8196 IP0 */
+ SSUSB_UWK_V1_8, /* mt8196 IP1 */
};

/*
@@ -100,6 +107,16 @@ static void ssusb_wakeup_ip_sleep_set(struct ssusb_mtk *ssusb, bool enable)
msk = WC0_IS_EN_P3_95 | WC0_IS_C_95(0x7) | WC0_IS_P_95;
val = enable ? (WC0_IS_EN_P3_95 | WC0_IS_C_95(0x1)) : 0;
break;
+ case SSUSB_UWK_V1_7:
+ reg = ssusb->uwk_reg_base + PERI_WK_CTRL0_8196;
+ msk = WC0_IS_EN_P0_96;
+ val = enable ? msk : 0;
+ break;
+ case SSUSB_UWK_V1_8:
+ reg = ssusb->uwk_reg_base + PERI_WK_CTRL0_8196;
+ msk = WC0_IS_EN_P1_96;
+ val = enable ? msk : 0;
+ break;
case SSUSB_UWK_V2:
reg = ssusb->uwk_reg_base + PERI_SSUSB_SPM_CTRL;
msk = SSC_IP_SLEEP_EN | SSC_SPM_INT_EN;
--
2.46.0