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authorChunfeng Yun <chunfeng.yun@mediatek.com>2021-03-23 10:02:49 +0300
committerGreg Kroah-Hartman <gregkh@linuxfoundation.org>2021-03-26 16:45:59 +0300
commit331c505894e4da9b29ec7d7fa7c945e69823faee (patch)
tree1e255a1311f32c13890b17533a8c50b48e42f38c /drivers/usb/host/xhci-mtk.c
parentc03b4ccb9481c3664e83249bc673559f057667ab (diff)
downloadlinux-331c505894e4da9b29ec7d7fa7c945e69823faee.tar.xz
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>
Diffstat (limited to 'drivers/usb/host/xhci-mtk.c')
-rw-r--r--drivers/usb/host/xhci-mtk.c10
1 files changed, 10 insertions, 0 deletions
diff --git a/drivers/usb/host/xhci-mtk.c b/drivers/usb/host/xhci-mtk.c
index edc79db09dfb..a003b3f5ef7e 100644
--- a/drivers/usb/host/xhci-mtk.c
+++ b/drivers/usb/host/xhci-mtk.c
@@ -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;