Add support for the ip-sleep wakeup functionality on the three MTU3
controllers found on the MT8195 SoC.

Signed-off-by: AngeloGioacchino Del Regno <angelogioacchino.delregno@collabora.com>
---
  drivers/usb/mtu3/mtu3_host.c | 31 +++++++++++++++++++++++++++++++
  1 file changed, 31 insertions(+)

diff --git a/drivers/usb/mtu3/mtu3_host.c b/drivers/usb/mtu3/mtu3_host.c
index 9f2be22af844..85f49e00e8db 100644
--- a/drivers/usb/mtu3/mtu3_host.c
+++ b/drivers/usb/mtu3/mtu3_host.c

@@ -34,6 +34,19 @@
  #define WC0_SSUSB0_CDEN		BIT(6)
  #define WC0_IS_SPM_EN		BIT(1)
  
+/* mt8195 */
+#define PERI_WK_CTRL0_8195	0x04
+#define WC0_IS_P_95		BIT(30)	/* polarity */
+#define WC0_IS_C_95(x)		((u32)(((x) & 0x7) << 27))
+#define WC0_IS_EN_P3_95		BIT(26)
+#define WC0_IS_EN_P2_95		BIT(25)
+#define WC0_IS_EN_P1_95		BIT(24)

+
+#define PERI_WK_CTRL1_8195	0x20
+#define WC1_IS_C_95(x)		((u32)(((x) & 0xf) << 28))
+#define WC1_IS_P_95		BIT(12)
+#define WC1_IS_EN_P0_95		BIT(6)
+
  /* mt2712 etc */
  #define PERI_SSUSB_SPM_CTRL	0x0
  #define SSC_IP_SLEEP_EN	BIT(4)

@@ -44,6 +57,9 @@ enum ssusb_uwk_vers {
  	SSUSB_UWK_V2,
  	SSUSB_UWK_V1_1 = 101,	/* specific revision 1.01 */
  	SSUSB_UWK_V1_2,		/* specific revision 1.02 */
+	SSUSB_UWK_V1_3,		/* mt8195 IP0 */
+	SSUSB_UWK_V1_5 = 105,	/* mt8195 IP2 */
+	SSUSB_UWK_V1_6,		/* mt8195 IP3 */
  };
  
  /*

@@ -70,6 +86,21 @@ static void ssusb_wakeup_ip_sleep_set(struct ssusb_mtk *ssusb, bool enable)
  		msk = WC0_SSUSB0_CDEN | WC0_IS_SPM_EN;
  		val = enable ? msk : 0;
  		break;
+	case SSUSB_UWK_V1_3:
+		reg = ssusb->uwk_reg_base + PERI_WK_CTRL1_8195;
+		msk = WC1_IS_EN_P0_95 | WC1_IS_C_95(0xf) | WC1_IS_P_95;
+		val = enable ? (WC1_IS_EN_P0_95 | WC1_IS_C_95(0x1)) : 0;
+		break;
+	case SSUSB_UWK_V1_5:
+		reg = ssusb->uwk_reg_base + PERI_WK_CTRL0_8195;
+		msk = WC0_IS_EN_P2_95 | WC0_IS_C_95(0x7) | WC0_IS_P_95;
+		val = enable ? (WC0_IS_EN_P2_95 | WC0_IS_C_95(0x1)) : 0;
+		break;
+	case SSUSB_UWK_V1_6:
+		reg = ssusb->uwk_reg_base + PERI_WK_CTRL0_8195;
+		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_V2:
  		reg = ssusb->uwk_reg_base + PERI_SSUSB_SPM_CTRL;
  		msk = SSC_IP_SLEEP_EN | SSC_SPM_INT_EN;