From 5557174f793f95c1026b5412e721daa083a77e24 Mon Sep 17 00:00:00 2001 From: John Crispin Date: Fri, 17 Jul 2015 12:48:39 +0000 Subject: brcm2708: add linux 4.1 support MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit Signed-off-by: Álvaro Fernández Rojas git-svn-id: svn://svn.openwrt.org/openwrt/trunk@46399 3c298f89-4303-0410-b956-a3cf2f4a3e73 --- ...o-Remove-restriction-of-only-a-single-ins.patch | 45 ++++++++++++++++++++++ 1 file changed, 45 insertions(+) create mode 100644 target/linux/brcm2708/patches-4.1/0083-bcm2708-vcio-Remove-restriction-of-only-a-single-ins.patch (limited to 'target/linux/brcm2708/patches-4.1/0083-bcm2708-vcio-Remove-restriction-of-only-a-single-ins.patch') diff --git a/target/linux/brcm2708/patches-4.1/0083-bcm2708-vcio-Remove-restriction-of-only-a-single-ins.patch b/target/linux/brcm2708/patches-4.1/0083-bcm2708-vcio-Remove-restriction-of-only-a-single-ins.patch new file mode 100644 index 0000000000..ad169da35d --- /dev/null +++ b/target/linux/brcm2708/patches-4.1/0083-bcm2708-vcio-Remove-restriction-of-only-a-single-ins.patch @@ -0,0 +1,45 @@ +From 79796a03fa8311ea9030817db27690f24f72214c Mon Sep 17 00:00:00 2001 +From: popcornmix +Date: Fri, 26 Jun 2015 17:37:38 +0100 +Subject: [PATCH 083/121] bcm2708-vcio: Remove restriction of only a single + instance being open + +We need more than one process to be able to use mailbox interface (e.g. HW cursor in fbturbo and hello_fft). +Locking should be handled on each mailbox access +--- + drivers/mailbox/bcm2708-vcio.c | 14 -------------- + 1 file changed, 14 deletions(-) + +--- a/drivers/mailbox/bcm2708-vcio.c ++++ b/drivers/mailbox/bcm2708-vcio.c +@@ -242,20 +242,9 @@ EXPORT_SYMBOL_GPL(bcm_mailbox_property); + + /* Platform Device for Mailbox */ + +-/* +- * Is the device open right now? Used to prevent +- * concurent access into the same device +- */ +-static bool device_is_open; +- + /* This is called whenever a process attempts to open the device file */ + static int device_open(struct inode *inode, struct file *file) + { +- /* We don't want to talk to two processes at the same time */ +- if (device_is_open) +- return -EBUSY; +- +- device_is_open = true; + try_module_get(THIS_MODULE); + + return 0; +@@ -263,9 +252,6 @@ static int device_open(struct inode *ino + + static int device_release(struct inode *inode, struct file *file) + { +- /* We're now ready for our next caller */ +- device_is_open = false; +- + module_put(THIS_MODULE); + + return 0; -- cgit v1.2.3