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From: Sascha Hauer <s.hauer@pengutronix.de>
To: Barebox List <barebox@lists.infradead.org>
Cc: "Edmund Henniges" <eh@emlix.com>, "Daniel Glöckner" <dg@emlix.com>
Subject: [PATCH 06/11] usb: Add a slice to usb host controllers
Date: Wed, 22 Apr 2020 09:54:47 +0200	[thread overview]
Message-ID: <20200422075452.25226-7-s.hauer@pengutronix.de> (raw)
In-Reply-To: <20200422075452.25226-1-s.hauer@pengutronix.de>

Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
---
 drivers/usb/core/usb.c | 6 ++++++
 include/usb/usb.h      | 7 +++++++
 2 files changed, 13 insertions(+)

diff --git a/drivers/usb/core/usb.c b/drivers/usb/core/usb.c
index d0a91b9e9f..db86ab4d19 100644
--- a/drivers/usb/core/usb.c
+++ b/drivers/usb/core/usb.c
@@ -81,11 +81,16 @@ static inline int usb_host_acquire(struct usb_host *host)
 	if (host->sem)
 		return -EAGAIN;
 	host->sem++;
+
+	slice_acquire(&host->slice);
+
 	return 0;
 }
 
 static inline void usb_host_release(struct usb_host *host)
 {
+	slice_release(&host->slice);
+
 	if (host->sem > 0)
 		host->sem--;
 }
@@ -95,6 +100,7 @@ int usb_register_host(struct usb_host *host)
 	list_add_tail(&host->list, &host_list);
 	host->busnum = host_busnum++;
 	host->sem = 0;
+	slice_init(&host->slice, dev_name(host->hw_dev));
 	return 0;
 }
 
diff --git a/include/usb/usb.h b/include/usb/usb.h
index 82a4736445..b3b6cb3178 100644
--- a/include/usb/usb.h
+++ b/include/usb/usb.h
@@ -23,6 +23,7 @@
 #define _USB_H_
 
 #include <driver.h>
+#include <slice.h>
 #include <usb/ch9.h>
 #include <usb/ch11.h>
 #include <usb/usb_defs.h>
@@ -168,11 +169,17 @@ struct usb_host {
 	struct usb_device *root_dev;
 	int sem;
 	struct usb_phy *usbphy;
+	struct slice slice;
 };
 
 int usb_register_host(struct usb_host *);
 void usb_unregister_host(struct usb_host *host);
 
+static inline struct slice *usb_device_slice(struct usb_device *udev)
+{
+	return &udev->host->slice;
+}
+
 int usb_host_detect(struct usb_host *host);
 
 int usb_set_protocol(struct usb_device *dev, int ifnum, int protocol);
-- 
2.26.1


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  parent reply	other threads:[~2020-04-22  7:54 UTC|newest]

Thread overview: 14+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2020-04-22  7:54 [PATCH v4 00/11] Protect code from pollers Sascha Hauer
2020-04-22  7:54 ` [PATCH 01/11] poller: Give pollers a name Sascha Hauer
2020-04-22  7:54 ` [PATCH 02/11] poller: Add a poller command Sascha Hauer
2020-04-22  7:54 ` [PATCH 03/11] Introduce slices Sascha Hauer
2020-05-08 18:01   ` Daniel Glöckner
2020-05-11  6:40     ` Sascha Hauer
2020-04-22  7:54 ` [PATCH 04/11] net: Add a slice to struct eth_device Sascha Hauer
2020-04-22  7:54 ` [PATCH 05/11] net: mdiobus: Add slice Sascha Hauer
2020-04-22  7:54 ` Sascha Hauer [this message]
2020-04-22  7:54 ` [PATCH 07/11] usbnet: " Sascha Hauer
2020-04-22  7:54 ` [PATCH 08/11] net: Call net_poll() in a poller Sascha Hauer
2020-04-22  7:54 ` [PATCH 09/11] net: reply to ping requests Sascha Hauer
2020-04-22  7:54 ` [PATCH 10/11] usbnet: Be more friendly in the receive path Sascha Hauer
2020-04-22  7:54 ` [PATCH 11/11] poller: Allow to run pollers inside of pollers Sascha Hauer

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