From patchwork Sat Oct 12 09:35:07 2013 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Peter Chen X-Patchwork-Id: 3031321 Return-Path: X-Original-To: patchwork-linux-arm@patchwork.kernel.org Delivered-To: patchwork-parsemail@patchwork2.web.kernel.org Received: from mail.kernel.org (mail.kernel.org [198.145.19.201]) by patchwork2.web.kernel.org (Postfix) with ESMTP id 4E46CBF924 for ; Sat, 12 Oct 2013 10:24:30 +0000 (UTC) Received: from mail.kernel.org (localhost [127.0.0.1]) by mail.kernel.org (Postfix) with ESMTP id 61AFF2031A for ; Sat, 12 Oct 2013 10:24:29 +0000 (UTC) Received: from casper.infradead.org (casper.infradead.org [85.118.1.10]) (using TLSv1 with cipher DHE-RSA-AES256-SHA (256/256 bits)) (No client certificate requested) by mail.kernel.org (Postfix) with ESMTPS id 0D025201F4 for ; Sat, 12 Oct 2013 10:24:28 +0000 (UTC) Received: from merlin.infradead.org ([2001:4978:20e::2]) by casper.infradead.org with esmtps (Exim 4.80.1 #2 (Red Hat Linux)) id 1VUvq6-0001pu-2R; 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Sat, 12 Oct 2013 09:48:12 +0000 (UTC) Received: from CO1EHSMHS012.bigfish.com (unknown [10.243.78.240]) by mail217-co1.bigfish.com (Postfix) with ESMTP id AE7969C004C; Sat, 12 Oct 2013 09:48:12 +0000 (UTC) Received: from mail.freescale.net (70.37.183.190) by CO1EHSMHS012.bigfish.com (10.243.66.22) with Microsoft SMTP Server (TLS) id 14.16.227.3; Sat, 12 Oct 2013 09:48:12 +0000 Received: from tx30smr01.am.freescale.net (10.81.153.31) by 039-SN1MMR1-005.039d.mgd.msft.net (10.84.1.17) with Microsoft SMTP Server (TLS) id 14.3.158.2; Sat, 12 Oct 2013 09:48:11 +0000 Received: from shlinux1.ap.freescale.net (shlinux1.ap.freescale.net [10.192.225.216]) by tx30smr01.am.freescale.net (8.14.3/8.14.0) with ESMTP id r9C9lllq027790; Sat, 12 Oct 2013 02:48:08 -0700 From: Peter Chen To: , , Subject: [PATCH 05/11] usb: chipidea: usbmisc_imx: add set_wakup API Date: Sat, 12 Oct 2013 17:35:07 +0800 Message-ID: <1381570513-24927-6-git-send-email-peter.chen@freescale.com> X-Mailer: git-send-email 1.7.1 In-Reply-To: <1381570513-24927-1-git-send-email-peter.chen@freescale.com> References: <1381570513-24927-1-git-send-email-peter.chen@freescale.com> MIME-Version: 1.0 X-OriginatorOrg: freescale.com X-FOPE-CONNECTOR: Id%0$Dn%*$RO%0$TLS%0$FQDN%$TlsDn% X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20131012_054853_160877_ADAA226B X-CRM114-Status: GOOD ( 15.98 ) X-Spam-Score: -2.6 (--) Cc: marex@denx.de, m.grzeschik@pengutronix.de, frank.li@freescale.com, alexander.shishkin@linux.intel.com, linux-usb@vger.kernel.org, peter.chen@freescale.com, kernel@pengutronix.de, festevam@gmail.com, linux-arm-kernel@lists.infradead.org X-BeenThere: linux-arm-kernel@lists.infradead.org X-Mailman-Version: 2.1.15 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Sender: "linux-arm-kernel" Errors-To: linux-arm-kernel-bounces+patchwork-linux-arm=patchwork.kernel.org@lists.infradead.org X-Spam-Status: No, score=-4.4 required=5.0 tests=BAYES_00,KHOP_BIG_TO_CC, RCVD_IN_DNSWL_MED, RP_MATCHES_RCVD, UNPARSEABLE_RELAY autolearn=unavailable version=3.3.1 X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on mail.kernel.org X-Virus-Scanned: ClamAV using ClamSMTP It is used to enable USB wakeup Signed-off-by: Peter Chen --- drivers/usb/chipidea/ci_hdrc_imx.h | 1 + drivers/usb/chipidea/usbmisc_imx.c | 41 ++++++++++++++++++++++++++++++++++++ 2 files changed, 42 insertions(+), 0 deletions(-) diff --git a/drivers/usb/chipidea/ci_hdrc_imx.h b/drivers/usb/chipidea/ci_hdrc_imx.h index c727159..92f4c30 100644 --- a/drivers/usb/chipidea/ci_hdrc_imx.h +++ b/drivers/usb/chipidea/ci_hdrc_imx.h @@ -18,3 +18,4 @@ struct imx_usbmisc_data { int imx_usbmisc_init(struct imx_usbmisc_data *); int imx_usbmisc_init_post(struct imx_usbmisc_data *); +int imx_usbmisc_set_wakeup(struct imx_usbmisc_data *, bool); diff --git a/drivers/usb/chipidea/usbmisc_imx.c b/drivers/usb/chipidea/usbmisc_imx.c index 1fd9a12..55b59e0 100644 --- a/drivers/usb/chipidea/usbmisc_imx.c +++ b/drivers/usb/chipidea/usbmisc_imx.c @@ -28,12 +28,18 @@ #define MX53_BM_OVER_CUR_DIS_UHx BIT(30) #define MX6_BM_OVER_CUR_DIS BIT(7) +#define MX6_BM_WAKEUP_ENABLE BIT(10) +#define MX6_BM_ID_WAKEUP BIT(16) +#define MX6_BM_VBUS_WAKEUP BIT(17) +#define MX6_BM_WAKEUP_INTR BIT(31) struct usbmisc_ops { /* It's called once when probe a usb device */ int (*init)(struct imx_usbmisc_data *data); /* It's called once after adding a usb device */ int (*post)(struct imx_usbmisc_data *data); + /* It's called when we need to enable usb wakeup */ + int (*set_wakeup)(struct imx_usbmisc_data *data, bool enabled); }; struct imx_usbmisc { @@ -122,6 +128,30 @@ static int usbmisc_imx6q_init(struct imx_usbmisc_data *data) return 0; } +static int usbmisc_imx6q_set_wakeup + (struct imx_usbmisc_data *data, bool enabled) +{ + unsigned long flags; + u32 reg, val = (MX6_BM_WAKEUP_ENABLE | MX6_BM_VBUS_WAKEUP + | MX6_BM_ID_WAKEUP); + + if (data->index > 3) + return -EINVAL; + + spin_lock_irqsave(&usbmisc->lock, flags); + reg = readl(usbmisc->base + data->index * 4); + if (enabled) { + writel(reg | val, usbmisc->base + data->index * 4); + } else { + if (reg & MX6_BM_WAKEUP_INTR) + pr_debug("wakeup int at ci_hdrc.%d\n", data->index); + writel(reg & ~val, usbmisc->base + data->index * 4); + } + spin_unlock_irqrestore(&usbmisc->lock, flags); + + return 0; +} + static const struct usbmisc_ops imx25_usbmisc_ops = { .post = usbmisc_imx25_post, }; @@ -132,6 +162,7 @@ static const struct usbmisc_ops imx53_usbmisc_ops = { static const struct usbmisc_ops imx6q_usbmisc_ops = { .init = usbmisc_imx6q_init, + .set_wakeup = usbmisc_imx6q_set_wakeup, }; int imx_usbmisc_init(struct imx_usbmisc_data *data) @@ -154,6 +185,16 @@ int imx_usbmisc_init_post(struct imx_usbmisc_data *data) } EXPORT_SYMBOL_GPL(imx_usbmisc_init_post); +int imx_usbmisc_set_wakeup(struct imx_usbmisc_data *data, bool enabled) +{ + if (!usbmisc) + return -ENODEV; + if (!usbmisc->ops->set_wakeup) + return 0; + return usbmisc->ops->set_wakeup(data, enabled); +} +EXPORT_SYMBOL_GPL(imx_usbmisc_set_wakeup); + static const struct of_device_id usbmisc_imx_dt_ids[] = { { .compatible = "fsl,imx25-usbmisc",