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Sun, 21 Jan 2024 23:58:41 -0800 (PST) Received: from [192.168.2.177] ([207.188.161.188]) by smtp.gmail.com with ESMTPSA id l34-20020a05600c1d2200b0040e89ade84bsm17815626wms.4.2024.01.21.23.58.39 (version=TLS1_3 cipher=TLS_AES_128_GCM_SHA256 bits=128/128); Sun, 21 Jan 2024 23:58:40 -0800 (PST) Message-ID: <5bf2910f-c184-4681-a474-69bea8ee7b71@gmail.com> Date: Mon, 22 Jan 2024 08:58:39 +0100 MIME-Version: 1.0 User-Agent: Mozilla Thunderbird Subject: Re: [PATCH 2/2] usb: mtu3: Add MT8195 MTU3 ip-sleep wakeup support Content-Language: en-US, ca-ES, es-ES To: AngeloGioacchino Del Regno , chunfeng.yun@mediatek.com Cc: gregkh@linuxfoundation.org, robh+dt@kernel.org, krzysztof.kozlowski+dt@linaro.org, conor+dt@kernel.org, linux-usb@vger.kernel.org, linux-arm-kernel@lists.infradead.org, linux-mediatek@lists.infradead.org, devicetree@vger.kernel.org, linux-kernel@vger.kernel.org, kernel@collabora.com References: <20240112133222.240038-1-angelogioacchino.delregno@collabora.com> <20240112133222.240038-2-angelogioacchino.delregno@collabora.com> From: Matthias Brugger Autocrypt: addr=matthias.bgg@gmail.com; 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charset="us-ascii"; Format="flowed" Sender: "linux-arm-kernel" Errors-To: linux-arm-kernel-bounces+linux-arm-kernel=archiver.kernel.org@lists.infradead.org On 12/01/2024 14:32, AngeloGioacchino Del Regno wrote: > Add support for the ip-sleep wakeup functionality on the three MTU3 > controllers found on the MT8195 SoC. > > Signed-off-by: AngeloGioacchino Del Regno > --- > drivers/usb/mtu3/mtu3_host.c | 31 +++++++++++++++++++++++++++++++ > 1 file changed, 31 insertions(+) > > diff --git a/drivers/usb/mtu3/mtu3_host.c b/drivers/usb/mtu3/mtu3_host.c > index 9f2be22af844..85f49e00e8db 100644 > --- a/drivers/usb/mtu3/mtu3_host.c > +++ b/drivers/usb/mtu3/mtu3_host.c > @@ -34,6 +34,19 @@ > #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 WC0_IS_EN_P1_95 BIT(24) Not used, shouldn't we drop that? Regards, Matthias > + > +#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 +57,9 @@ 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 +86,21 @@ 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; _______________________________________________ linux-arm-kernel mailing list linux-arm-kernel@lists.infradead.org http://lists.infradead.org/mailman/listinfo/linux-arm-kernel