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usb: mtu3: support ip-sleep wakeup for MT8183

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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: Chunfeng Yun <chunfeng.yun@mediatek.com>
Link: https://lore.kernel.org/r/1616482975-17841-10-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 15:02:52 +08:00 committed by Greg Kroah-Hartman
parent 331c505894
commit b1a344589e
1 changed files with 12 additions and 0 deletions
repo.diff.show_diff_stats Download patch file Download diff file Expand all files Collapse all files

12
drivers/usb/mtu3/mtu3_host.c
View file

@ -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;