Commit b1a34458 authored by Chunfeng Yun's avatar Chunfeng Yun Committed by Greg Kroah-Hartman
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usb: mtu3: support ip-sleep wakeup for MT8183 



Add support ip-sleep wakeup for MT8183, it's similar to MT8173,
and it's also a specific one, but not following IPM rule.
Due to the index 2 already used by many DTS, it's better to keep
it unchanged for backward compatibility, treat specific ones without
following IPM rule as revision 1.x, meanwhile reserve 3~10 for later
revision that follows the IPM rule.

Signed-off-by: default avatarChunfeng Yun <chunfeng.yun@mediatek.com>
Link: https://lore.kernel.org/r/1616482975-17841-10-git-send-email-chunfeng.yun@mediatek.com


Signed-off-by: default avatarGreg Kroah-Hartman <gregkh@linuxfoundation.org>
parent 331c5058

drivers/usb/mtu3/mtu3_host.c

+12 −0
Original line number Diff line number Diff line
@@ -24,6 +24,12 @@ 
#define WC1_IS_EN	BIT(25)

#define WC1_IS_P	BIT(6)  /* polarity for ip sleep */



/* mt8183 */

#define PERI_WK_CTRL0	0x0

#define WC0_IS_C(x)	((u32)(((x) & 0xf) << 28))  /* cycle debounce */

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

#define WC0_IS_EN	BIT(6)



/* mt2712 etc */

#define PERI_SSUSB_SPM_CTRL	0x0

#define SSC_IP_SLEEP_EN	BIT(4)
@@ -32,6 +38,7 @@ 
enum ssusb_uwk_vers {

	SSUSB_UWK_V1 = 1,

	SSUSB_UWK_V2,

	SSUSB_UWK_V1_1 = 101,	/* specific revision 1.01 */

};



/*
@@ -48,6 +55,11 @@ static void ssusb_wakeup_ip_sleep_set(struct ssusb_mtk *ssusb, bool enable) 
		msk = WC1_IS_EN | WC1_IS_C(0xf) | WC1_IS_P;

		val = enable ? (WC1_IS_EN | WC1_IS_C(0x8)) : 0;

		break;

	case SSUSB_UWK_V1_1:

		reg = ssusb->uwk_reg_base + PERI_WK_CTRL0;

		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_V2:

		reg = ssusb->uwk_reg_base + PERI_SSUSB_SPM_CTRL;

		msk = SSC_IP_SLEEP_EN | SSC_SPM_INT_EN;