On 02/11/2021 07:00, Chunfeng Yun wrote:
Add support ip-sleep wakeup for mt8195, it's a specific revision for
each USB controller, and not following IPM rule.
Signed-off-by: Chunfeng Yun <chunfeng.yun@xxxxxxxxxxxx>
Reviewed-by: Matthias Brugger <matthias.bgg@xxxxxxxxx>
---
drivers/usb/host/xhci-mtk.c | 37 +++++++++++++++++++++++++++++++++++++
1 file changed, 37 insertions(+)
diff --git a/drivers/usb/host/xhci-mtk.c b/drivers/usb/host/xhci-mtk.c
index c53f6f276d5c..63f4b6984667 100644
--- a/drivers/usb/host/xhci-mtk.c
+++ b/drivers/usb/host/xhci-mtk.c
@@ -95,6 +95,19 @@
#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)
@@ -105,6 +118,10 @@ enum ssusb_uwk_vers {
SSUSB_UWK_V2,
SSUSB_UWK_V1_1 = 101, /* specific revision 1.01 */
SSUSB_UWK_V1_2, /* specific revision 1.2 */
+ SSUSB_UWK_V1_3, /* mt8195 IP0 */
+ SSUSB_UWK_V1_4, /* mt8195 IP1 */
+ SSUSB_UWK_V1_5, /* mt8195 IP2 */
+ SSUSB_UWK_V1_6, /* mt8195 IP3 */
};
/*
@@ -307,6 +324,26 @@ static void usb_wakeup_ip_sleep_set(struct xhci_hcd_mtk *mtk, bool enable)
msk = WC0_SSUSB0_CDEN | WC0_IS_SPM_EN;
val = enable ? msk : 0;
break;
+ case SSUSB_UWK_V1_3:
+ reg = mtk->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_4:
+ reg = mtk->uwk_reg_base + PERI_WK_CTRL0_8195;
+ msk = WC0_IS_EN_P1_95 | WC0_IS_C_95(0x7) | WC0_IS_P_95;
+ val = enable ? (WC0_IS_EN_P1_95 | WC0_IS_C_95(0x1)) : 0;
+ break;
+ case SSUSB_UWK_V1_5:
+ reg = mtk->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 = mtk->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 = mtk->uwk_reg_base + PERI_SSUSB_SPM_CTRL;
msk = SSC_IP_SLEEP_EN | SSC_SPM_INT_EN;
