[PATCH v2 07/13] usb: xhci-mtk: add support ip-sleep wakeup for mT8192
From: Chunfeng Yun <chunfeng.yun@mediatek.com>
Date: 2021-03-23 07:04:21
Also in:
linux-arm-kernel, linux-mediatek, linux-usb, lkml
Subsystem:
mediatek usb3 drd ip driver, the rest, usb subsystem, usb xhci driver · Maintainers:
Chunfeng Yun, Linus Torvalds, Greg Kroah-Hartman, Mathias Nyman
Add support ip-sleep wakeup for mT8192, it's a specific revision, and not following IPM rule. Signed-off-by: Chunfeng Yun <chunfeng.yun@mediatek.com> --- v2: 1. fix typo suggested by Sergei 2. modify revision format --- drivers/usb/host/xhci-mtk.c | 10 ++++++++++ 1 file changed, 10 insertions(+)
diff --git a/drivers/usb/host/xhci-mtk.c b/drivers/usb/host/xhci-mtk.c
index ef2c74281ab4..24342112cd1d 100644
--- a/drivers/usb/host/xhci-mtk.c
+++ b/drivers/usb/host/xhci-mtk.c@@ -70,6 +70,10 @@ #define WC0_IS_P BIT(12) /* polarity */ #define WC0_IS_EN BIT(6) +/* mt8192 */ +#define WC0_SSUSB0_CDEN BIT(6) +#define WC0_IS_SPM_EN BIT(1) + /* mt2712 etc */ #define PERI_SSUSB_SPM_CTRL 0x0 #define SSC_IP_SLEEP_EN BIT(4)
@@ -79,6 +83,7 @@ enum ssusb_uwk_vers { SSUSB_UWK_V1 = 1, SSUSB_UWK_V2, SSUSB_UWK_V1_1 = 101, /* specific revision 1.01 */ + SSUSB_UWK_V1_2, /* specific revision 1.2 */ }; static int xhci_mtk_host_enable(struct xhci_hcd_mtk *mtk)
@@ -313,6 +318,11 @@ static void usb_wakeup_ip_sleep_set(struct xhci_hcd_mtk *mtk, bool enable) 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_2: + reg = mtk->uwk_reg_base + PERI_WK_CTRL0; + msk = WC0_SSUSB0_CDEN | WC0_IS_SPM_EN; + val = enable ? msk : 0; + break; case SSUSB_UWK_V2: reg = mtk->uwk_reg_base + PERI_SSUSB_SPM_CTRL; msk = SSC_IP_SLEEP_EN | SSC_SPM_INT_EN;
--
2.18.0