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Wed, 28 Aug 2019 14:21:32 +0800 From: Chunfeng Yun To: Greg Kroah-Hartman , Rob Herring Subject: [PATCH 4/6] usb: mtk-xhci: support ip-sleep wakeup for MT8183 Date: Wed, 28 Aug 2019 14:20:59 +0800 Message-ID: <1566973261-21677-5-git-send-email-chunfeng.yun@mediatek.com> X-Mailer: git-send-email 1.8.1.1.dirty In-Reply-To: <1566973261-21677-1-git-send-email-chunfeng.yun@mediatek.com> References: <1566973261-21677-1-git-send-email-chunfeng.yun@mediatek.com> MIME-Version: 1.0 X-TM-SNTS-SMTP: 7024DF7F1485941F27536402F8768AC8AF5041008723D7F1DEBF715E13014A412000:8 X-MTK: N X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20190827_232131_984963_DA56305D X-CRM114-Status: GOOD ( 12.61 ) X-BeenThere: linux-arm-kernel@lists.infradead.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: Mark Rutland , devicetree@vger.kernel.org, Mathias Nyman , linux-usb@vger.kernel.org, linux-kernel@vger.kernel.org, Chunfeng Yun , linux-mediatek@lists.infradead.org, Matthias Brugger , linux-arm-kernel@lists.infradead.org Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit Sender: "linux-arm-kernel" Errors-To: linux-arm-kernel-bounces+infradead-linux-arm-kernel=archiver.kernel.org@lists.infradead.org Support USB wakeup by ip-sleep mode for MT8183, it's similar to MT8173 Signed-off-by: Chunfeng Yun --- drivers/usb/host/xhci-mtk.c | 14 +++++++++++++- 1 file changed, 13 insertions(+), 1 deletion(-) diff --git a/drivers/usb/host/xhci-mtk.c b/drivers/usb/host/xhci-mtk.c index 026fe18972d3..4b59f2978954 100644 --- a/drivers/usb/host/xhci-mtk.c +++ b/drivers/usb/host/xhci-mtk.c @@ -57,6 +57,12 @@ #define CTRL_U2_FORCE_PLL_STB BIT(28) /* usb remote wakeup registers in syscon */ +/* mt8183 etc */ +#define PERI_WK_CTRL0 0x20 +#define WC0_IS_C(x) (((x) & 0xf) << 28) /* cycle debounce */ +#define WC0_IS_EN BIT(12) +#define WC0_IS_P BIT(6) /* polarity for ip sleep */ + /* mt8173 etc */ #define PERI_WK_CTRL1 0x4 #define WC1_IS_C(x) (((x) & 0xf) << 26) /* cycle debounce */ @@ -69,7 +75,8 @@ #define SSC_SPM_INT_EN BIT(1) enum ssusb_uwk_vers { - SSUSB_UWK_V1 = 1, + SSUSB_UWK_V0 = 0, + SSUSB_UWK_V1, SSUSB_UWK_V2, }; @@ -282,6 +289,11 @@ static void usb_wakeup_ip_sleep_set(struct xhci_hcd_mtk *mtk, bool enable) u32 reg, msk, val; switch (mtk->uwk_vers) { + case SSUSB_UWK_V0: + 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_V1: reg = mtk->uwk_reg_base + PERI_WK_CTRL1; msk = WC1_IS_EN | WC1_IS_C(0xf) | WC1_IS_P; -- 2.23.0 _______________________________________________ linux-arm-kernel mailing list linux-arm-kernel@lists.infradead.org http://lists.infradead.org/mailman/listinfo/linux-arm-kernel