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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: Chunfeng Yun <chunfeng.yun@mediatek.com>
Link: https://lore.kernel.org/r/1616482975-17841-7-git-send-email-chunfeng.yun@mediatek.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
This commit is contained in:
Chunfeng Yun 2021-03-23 15:02:49 +08:00 committed by Greg Kroah-Hartman
parent c03b4ccb94
commit 331c505894
1 changed files with 10 additions and 0 deletions
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10
drivers/usb/host/xhci-mtk.c
View File

@ -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;