[PATCH v3 4/4] usb: mtu3: add support remote wakeup of mt8196
AngeloGioacchino Del Regno
angelogioacchino.delregno at collabora.com
Tue Feb 18 00:57:11 PST 2025
Il 15/02/25 11:06, Chunfeng Yun ha scritto:
> There are three USB controllers on mt8196, each controller's wakeup
> control is different, add some specific versions for them.
>
> Signed-off-by: Chunfeng Yun <chunfeng.yun at mediatek.com>
Reviewed-by: AngeloGioacchino Del Regno <angelogioacchino.delregno at collabora.com>
> ---
> v3: add the ommitted third dual-role controller suggested by Angelo
> v2: add wakeup for dual-role controllers
> ---
> drivers/usb/mtu3/mtu3_host.c | 26 ++++++++++++++++++++++++++
> 1 file changed, 26 insertions(+)
>
> diff --git a/drivers/usb/mtu3/mtu3_host.c b/drivers/usb/mtu3/mtu3_host.c
> index 7c657ea2dabd..8138b3f3096a 100644
> --- a/drivers/usb/mtu3/mtu3_host.c
> +++ b/drivers/usb/mtu3/mtu3_host.c
> @@ -46,6 +46,14 @@
> #define WC1_IS_P_95 BIT(12)
> #define WC1_IS_EN_P0_95 BIT(6)
>
> +/* mt8196 */
> +#define PERI_WK_CTRL0_8196 0x08
> +#define WC0_IS_EN_P0_96 BIT(0)
> +#define WC0_IS_EN_P1_96 BIT(7)
> +
> +#define PERI_WK_CTRL1_8196 0x10
> +#define WC1_IS_EN_P2_96 BIT(0)
> +
> /* mt2712 etc */
> #define PERI_SSUSB_SPM_CTRL 0x0
> #define SSC_IP_SLEEP_EN BIT(4)
> @@ -59,6 +67,9 @@ enum ssusb_uwk_vers {
> SSUSB_UWK_V1_3, /* mt8195 IP0 */
> SSUSB_UWK_V1_5 = 105, /* mt8195 IP2 */
> SSUSB_UWK_V1_6, /* mt8195 IP3 */
> + SSUSB_UWK_V1_7, /* mt8196 IP0 */
> + SSUSB_UWK_V1_8, /* mt8196 IP1 */
> + SSUSB_UWK_V1_9, /* mt8196 IP2 */
> };
>
> /*
> @@ -100,6 +111,21 @@ static void ssusb_wakeup_ip_sleep_set(struct ssusb_mtk *ssusb, bool enable)
> 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_V1_7:
> + reg = ssusb->uwk_reg_base + PERI_WK_CTRL0_8196;
> + msk = WC0_IS_EN_P0_96;
> + val = enable ? msk : 0;
> + break;
> + case SSUSB_UWK_V1_8:
> + reg = ssusb->uwk_reg_base + PERI_WK_CTRL0_8196;
> + msk = WC0_IS_EN_P1_96;
> + val = enable ? msk : 0;
> + break;
> + case SSUSB_UWK_V1_9:
> + reg = ssusb->uwk_reg_base + PERI_WK_CTRL1_8196;
> + msk = WC1_IS_EN_P2_96;
> + val = enable ? msk : 0;
> + break;
> case SSUSB_UWK_V2:
> reg = ssusb->uwk_reg_base + PERI_SSUSB_SPM_CTRL;
> msk = SSC_IP_SLEEP_EN | SSC_SPM_INT_EN;
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