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usb: mtu3: Add MT8195 MTU3 ip-sleep wakeup support

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Add support for the ip-sleep wakeup functionality on the three MTU3
controllers found on the MT8195 SoC.

Signed-off-by: AngeloGioacchino Del Regno <angelogioacchino.delregno@collabora.com>
Reviewed-by: Matthias Brugger <matthias.bgg@gmail.com>
Link: https://lore.kernel.org/r/20240122111809.148546-2-angelogioacchino.delregno@collabora.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
This commit is contained in:
AngeloGioacchino Del Regno 2024-01-22 12:18:09 +01:00 committed by Greg Kroah-Hartman
parent f99044cd14
commit 4158af057c
1 changed files with 30 additions and 0 deletions
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30
drivers/usb/mtu3/mtu3_host.c
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@ -34,6 +34,18 @@
#define WC0_SSUSB0_CDEN BIT(6)
#define WC0_IS_SPM_EN BIT(1)
/* mt8195 */
#define PERI_WK_CTRL0_8195 0x04
#define WC0_IS_P_95 BIT(30) /* polarity */
#define WC0_IS_C_95(x) ((u32)(((x) & 0x7) << 27))
#define WC0_IS_EN_P3_95 BIT(26)
#define WC0_IS_EN_P2_95 BIT(25)
#define PERI_WK_CTRL1_8195 0x20
#define WC1_IS_C_95(x) ((u32)(((x) & 0xf) << 28))
#define WC1_IS_P_95 BIT(12)
#define WC1_IS_EN_P0_95 BIT(6)
/* mt2712 etc */
#define PERI_SSUSB_SPM_CTRL 0x0
#define SSC_IP_SLEEP_EN BIT(4)
@ -44,6 +56,9 @@ enum ssusb_uwk_vers {
SSUSB_UWK_V2,
SSUSB_UWK_V1_1 = 101, /* specific revision 1.01 */
SSUSB_UWK_V1_2, /* specific revision 1.02 */
SSUSB_UWK_V1_3, /* mt8195 IP0 */
SSUSB_UWK_V1_5 = 105, /* mt8195 IP2 */
SSUSB_UWK_V1_6, /* mt8195 IP3 */
};
/*
@ -70,6 +85,21 @@ static void ssusb_wakeup_ip_sleep_set(struct ssusb_mtk *ssusb, bool enable)
msk = WC0_SSUSB0_CDEN | WC0_IS_SPM_EN;
val = enable ? msk : 0;
break;
case SSUSB_UWK_V1_3:
reg = ssusb->uwk_reg_base + PERI_WK_CTRL1_8195;
msk = WC1_IS_EN_P0_95 | WC1_IS_C_95(0xf) | WC1_IS_P_95;
val = enable ? (WC1_IS_EN_P0_95 | WC1_IS_C_95(0x1)) : 0;
break;
case SSUSB_UWK_V1_5:
reg = ssusb->uwk_reg_base + PERI_WK_CTRL0_8195;
msk = WC0_IS_EN_P2_95 | WC0_IS_C_95(0x7) | WC0_IS_P_95;
val = enable ? (WC0_IS_EN_P2_95 | WC0_IS_C_95(0x1)) : 0;
break;
case SSUSB_UWK_V1_6:
reg = ssusb->uwk_reg_base + PERI_WK_CTRL0_8195;
msk = WC0_IS_EN_P3_95 | WC0_IS_C_95(0x7) | WC0_IS_P_95;
val = enable ? (WC0_IS_EN_P3_95 | WC0_IS_C_95(0x1)) : 0;
break;
case SSUSB_UWK_V2:
reg = ssusb->uwk_reg_base + PERI_SSUSB_SPM_CTRL;
msk = SSC_IP_SLEEP_EN | SSC_SPM_INT_EN;