From mboxrd@z Thu Jan 1 00:00:00 1970 Return-path: Received: from metis.ext.pengutronix.de ([2001:67c:670:201:290:27ff:fe1d:cc33]) by merlin.infradead.org with esmtps (Exim 4.92.3 #3 (Red Hat Linux)) id 1l71Y6-0004VE-CV for barebox@lists.infradead.org; Tue, 02 Feb 2021 19:41:19 +0000 From: Ahmad Fatoum Date: Tue, 2 Feb 2021 20:40:58 +0100 Message-Id: <20210202194059.9466-6-a.fatoum@pengutronix.de> In-Reply-To: <20210202194059.9466-1-a.fatoum@pengutronix.de> References: <20210202194059.9466-1-a.fatoum@pengutronix.de> MIME-Version: 1.0 List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit Sender: "barebox" Errors-To: barebox-bounces+u.kleine-koenig=pengutronix.de@lists.infradead.org Subject: [PATCH 6/7] usb: add fallback ->detect method for USB host drivers To: barebox@lists.infradead.org Cc: Ahmad Fatoum We already maintain a list of USB host controllers, so we can use that to implement a generic detect callback. Currently, all drivers define their own, which uses driver-specific means to arrive at the struct usb_host and then call usb_host_detect(). Signed-off-by: Ahmad Fatoum --- v1 -> v2: - no change --- drivers/usb/core/usb.c | 14 ++++++++++++++ 1 file changed, 14 insertions(+) diff --git a/drivers/usb/core/usb.c b/drivers/usb/core/usb.c index ea244d4bcf6c..938a28e030bf 100644 --- a/drivers/usb/core/usb.c +++ b/drivers/usb/core/usb.c @@ -88,11 +88,25 @@ static inline void usb_host_release(struct usb_host *host) slice_release(&host->slice); } +static int usb_hw_detect(struct device_d *dev) +{ + struct usb_host *host; + + list_for_each_entry(host, &host_list, list) { + if (dev == host->hw_dev) + return usb_host_detect(host); + } + + return -ENODEV; +} + int usb_register_host(struct usb_host *host) { list_add_tail(&host->list, &host_list); host->busnum = host_busnum++; slice_init(&host->slice, dev_name(host->hw_dev)); + if (!host->hw_dev->detect) + host->hw_dev->detect = usb_hw_detect; return 0; } -- 2.30.0 _______________________________________________ barebox mailing list barebox@lists.infradead.org http://lists.infradead.org/mailman/listinfo/barebox