diff options
| author | Chunfeng Yun <chunfeng.yun@mediatek.com> | 2021-03-23 10:02:48 +0300 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2021-03-26 16:45:49 +0300 |
| commit | c03b4ccb9481c3664e83249bc673559f057667ab (patch) | |
| tree | 628ac3200b4daad8df2ea730e075aea7669d9585 /drivers/usb/host/xhci-mtk.c | |
| parent | d31b63f194d21220bfb557ed4ffbcef830185eca (diff) | |
| download | linux-c03b4ccb9481c3664e83249bc673559f057667ab.tar.xz | |
usb: xhci-mtk: 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: Chunfeng Yun <chunfeng.yun@mediatek.com>
Link: https://lore.kernel.org/r/1616482975-17841-6-git-send-email-chunfeng.yun@mediatek.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Diffstat (limited to 'drivers/usb/host/xhci-mtk.c')
| -rw-r--r-- | drivers/usb/host/xhci-mtk.c | 13 |
1 files changed, 13 insertions, 0 deletions
diff --git a/drivers/usb/host/xhci-mtk.c b/drivers/usb/host/xhci-mtk.c index 57bcfdfa0465..edc79db09dfb 100644 --- a/drivers/usb/host/xhci-mtk.c +++ b/drivers/usb/host/xhci-mtk.c @@ -57,12 +57,19 @@ #define CTRL_U2_FORCE_PLL_STB BIT(28) /* usb remote wakeup registers in syscon */ + /* mt8173 etc */ #define PERI_WK_CTRL1 0x4 #define WC1_IS_C(x) (((x) & 0xf) << 26) /* cycle debounce */ #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) @@ -71,6 +78,7 @@ enum ssusb_uwk_vers { SSUSB_UWK_V1 = 1, SSUSB_UWK_V2, + SSUSB_UWK_V1_1 = 101, /* specific revision 1.01 */ }; static int xhci_mtk_host_enable(struct xhci_hcd_mtk *mtk) @@ -300,6 +308,11 @@ static void usb_wakeup_ip_sleep_set(struct xhci_hcd_mtk *mtk, 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 = mtk->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 = mtk->uwk_reg_base + PERI_SSUSB_SPM_CTRL; msk = SSC_IP_SLEEP_EN | SSC_SPM_INT_EN; |