Commit 331c5058 authored by Chunfeng Yun's avatar Chunfeng Yun Committed by Greg Kroah-Hartman
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usb: xhci-mtk: add support ip-sleep wakeup for mT8192 



Add support ip-sleep wakeup for mT8192, it's a specific revision,
and not following IPM rule.

Signed-off-by: default avatarChunfeng Yun <chunfeng.yun@mediatek.com>
Link: https://lore.kernel.org/r/1616482975-17841-7-git-send-email-chunfeng.yun@mediatek.com


Signed-off-by: default avatarGreg Kroah-Hartman <gregkh@linuxfoundation.org>
parent c03b4ccb

drivers/usb/host/xhci-mtk.c

+10 −0
Original line number Original line Diff line number Diff line
@@ -70,6 +70,10 @@ 
#define WC0_IS_P	BIT(12)	/* polarity */

#define WC0_IS_P	BIT(12)	/* polarity */

#define WC0_IS_EN	BIT(6)

#define WC0_IS_EN	BIT(6)





/* mt8192 */

#define WC0_SSUSB0_CDEN		BIT(6)

#define WC0_IS_SPM_EN		BIT(1)



/* mt2712 etc */

/* mt2712 etc */

#define PERI_SSUSB_SPM_CTRL	0x0

#define PERI_SSUSB_SPM_CTRL	0x0

#define SSC_IP_SLEEP_EN	BIT(4)

#define SSC_IP_SLEEP_EN	BIT(4)
@@ -79,6 +83,7 @@ enum ssusb_uwk_vers { 
	SSUSB_UWK_V1 = 1,

	SSUSB_UWK_V1 = 1,

	SSUSB_UWK_V2,

	SSUSB_UWK_V2,

	SSUSB_UWK_V1_1 = 101,	/* specific revision 1.01 */

	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)

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;

		msk = WC0_IS_EN | WC0_IS_C(0xf) | WC0_IS_P;

		val = enable ? (WC0_IS_EN | WC0_IS_C(0x8)) : 0;

		val = enable ? (WC0_IS_EN | WC0_IS_C(0x8)) : 0;

		break;

		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:

	case SSUSB_UWK_V2:

		reg = mtk->uwk_reg_base + PERI_SSUSB_SPM_CTRL;

		reg = mtk->uwk_reg_base + PERI_SSUSB_SPM_CTRL;

		msk = SSC_IP_SLEEP_EN | SSC_SPM_INT_EN;

		msk = SSC_IP_SLEEP_EN | SSC_SPM_INT_EN;