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Mon, 4 Feb 2013 03:04:46 +0000 Received: from localhost.localdomain (nchen-desktop.ap.freescale.net [10.192.242.40]) by az84smr01.freescale.net (8.14.3/8.14.0) with ESMTP id r14340jE032407; Sun, 3 Feb 2013 20:04:40 -0700 From: Peter Chen To: Subject: [PATCH v6 5/8] usb: chipidea: udc: add pullup/pulldown dp at hw_device_state Date: Mon, 4 Feb 2013 11:03:56 +0800 Message-ID: <1359947039-23906-6-git-send-email-peter.chen@freescale.com> X-Mailer: git-send-email 1.7.0.4 In-Reply-To: <1359947039-23906-1-git-send-email-peter.chen@freescale.com> References: <1359947039-23906-1-git-send-email-peter.chen@freescale.com> MIME-Version: 1.0 X-OriginatorOrg: freescale.com X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20130203_220452_945798_7B2A8C37 X-CRM114-Status: GOOD ( 11.12 ) X-Spam-Score: 0.4 (/) X-Spam-Report: SpamAssassin version 3.3.2 on merlin.infradead.org summary: Content analysis details: (0.4 points) pts rule name description ---- ---------------------- -------------------------------------------------- -0.7 RCVD_IN_DNSWL_LOW RBL: Sender listed at http://www.dnswl.org/, low trust [216.32.181.185 listed in list.dnswl.org] 3.0 KHOP_BIG_TO_CC Sent to 10+ recipients instaed of Bcc or a list -1.9 BAYES_00 BODY: Bayes spam probability is 0 to 1% [score: 0.0000] Cc: marex@denx.de, m.grzeschik@pengutronix.de, gregkh@linuxfoundation.org, pkondeti@codeaurora.org, linux-usb@vger.kernel.org, balbi@ti.com, mkl@pengutronix.de, kernel@pengutronix.de, matt@genesi-usa.com, shawn.guo@linaro.org, festevam@gmail.com, linux-arm-kernel@lists.infradead.org X-BeenThere: linux-arm-kernel@lists.infradead.org X-Mailman-Version: 2.1.14 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Sender: linux-arm-kernel-bounces@lists.infradead.org Errors-To: linux-arm-kernel-bounces+patchwork-linux-arm=patchwork.kernel.org@lists.infradead.org - During the connect/disconnect host, we need to pullup and pulldown dp - Make sure the dp is not pullup until the vbus is on when flag CI13XXX_PULLUP_ON_VBUS is set - Using hw_device_state when set run/stop bit Signed-off-by: Peter Chen --- drivers/usb/chipidea/udc.c | 10 ++++++++-- 1 files changed, 8 insertions(+), 2 deletions(-) diff --git a/drivers/usb/chipidea/udc.c b/drivers/usb/chipidea/udc.c index e82dae4..597ae64 100644 --- a/drivers/usb/chipidea/udc.c +++ b/drivers/usb/chipidea/udc.c @@ -91,8 +91,10 @@ static int hw_device_state(struct ci13xxx *ci, u32 dma) /* interrupt, error, port change, reset, sleep/suspend */ hw_write(ci, OP_USBINTR, ~0, USBi_UI|USBi_UEI|USBi_PCI|USBi_URI|USBi_SLI); + hw_write(ci, OP_USBCMD, USBCMD_RS, USBCMD_RS); } else { hw_write(ci, OP_USBINTR, ~0, 0); + hw_write(ci, OP_USBCMD, USBCMD_RS, 0); } return 0; } @@ -1424,10 +1426,14 @@ static int ci13xxx_pullup(struct usb_gadget *_gadget, int is_on) { struct ci13xxx *ci = container_of(_gadget, struct ci13xxx, gadget); + if ((ci->platdata->flags & CI13XXX_PULLUP_ON_VBUS) && + !ci->vbus_active) + return -ENOTSUPP; + if (is_on) - hw_write(ci, OP_USBCMD, USBCMD_RS, USBCMD_RS); + hw_device_state(ci, ci->ep0out->qh.dma); else - hw_write(ci, OP_USBCMD, USBCMD_RS, 0); + hw_device_state(ci, 0); return 0; }