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2010-08-10USB: refactor the powermac-specific ASIC clock codeAlan Stern
This patch (as1383) takes the powermac-specific code from the PCI HCD glue layer and encapsulates it in its own subroutine. Signed-off-by: Alan Stern <stern@rowland.harvard.edu> Acked-by: Benjamin Herrenschmidt <benh@kernel.crashing.org> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2010-08-10USB: gadget: g_fs: code cleanupMichal Nazarewicz
This commit cleans the g_fs gadget hopefully making it more readable. This is achieved by usage of the usb_string_ids_tab() function for batch string IDs registration as well as generalising configuration so that a single routine is used to add each configuration and bind interfaces. As an effect, the code is shorter and has fewer #ifdefs. Moreover, in some circumstances previous code #defined CONFIG_USB_FUNCTIONFS_GENERIC macro to prevent a situation where gadget with no configurations is built. This code removes the #define form source code and achieves the same effect using select in Kconfig. This patch also changes wording and names of the Kconfig options. Signed-off-by: Michal Nazarewicz <m.nazarewicz@samsung.com> Signed-off-by: Kyungmin Park <kyungmin.park@samsung.com> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2010-08-10USB: convert usb_hcd bitfields into atomic flagsAlan Stern
This patch (as1393) converts several of the single-bit fields in struct usb_hcd to atomic flags. This is for safety's sake; not all CPUs can update bitfield values atomically, and these flags are used in multiple contexts. The flag fields that are set only during registration or removal can remain as they are, since non-atomic accesses at those times will not cause any problems. (Strictly speaking, the authorized_default flag should become atomic as well. I didn't bother with it because it gets changed only via sysfs. It can be done later, if anyone wants.) Signed-off-by: Alan Stern <stern@rowland.harvard.edu> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2010-08-10USB: gadget: section mismatch warning fixedMichal Nazarewicz
In may gadgets bind and bind like functions were in a init section as they were only run during initialisation. However, being callback functions they were referenced from structures in “normal” sections. Changing the tag from “__init” to “__ref” fixes the warnings. Signed-off-by: Michal Nazarewicz <m.nazarewicz@samsung.com> Cc: Kyungmin Park <kyungmin.park@samsung.com> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2010-08-10USB: gadget: f_mass_storage: added eject callbackMichal Nazarewicz
Added pre_eject() and post_eject() callbacks which are called before and after removable logical unit is ejected. The first can prevent logical unit from being ejected. This commit also changes the way callbacks are passed to the function from gadget. A fsg_operations structure has been created which lists all callbacks -- this is passed to the fsg_config. This is important because it changes the way thread_exits() callback is passed. Signed-off-by: Michal Nazarewicz <m.nazarewicz@samsung.com> Signed-off-by: Kyungmin Park <kyungmin.park@samsung.com> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2010-08-10USB: gadget: composite: added disconnect callbackMichal Nazarewicz
Added a disconnect() callback to composite devices which is called by composite glue when its disconnect callback is called by gadget. Signed-off-by: Michal Nazarewicz <m.nazarewicz@samsung.com> Signed-off-by: Kyungmin Park <kyungmin.park@samsung.com> Acked-by: David Brownell <dbrownell@users.sourceforge.net> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2010-08-10USB: gadget: g_multi: code clean up and refactoringMichal Nazarewicz
The Multifunction Composite Gadget have been cleaned up and refactored so hopefully it looks prettier and works at least as good as before changes. A Kconfig has also been fixed to make it impossible to build FunctionFS gadget with no configurations. With this patch, if RNDIS is not chosen by the user CDC is force-selected. Signed-off-by: Michal Nazarewicz <m.nazarewicz@samsung.com> Signed-off-by: Kyungmin Park <kyungmin.park@samsung.com> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2010-08-10USB: gadget: f_mass_storage: dead code removedMichal Nazarewicz
The ep0req_name was never used in f_mass_storage hence it may be safely removed from the code. It was a leftover from File Storage Gadget which used it for debug messages. Signed-off-by: Michal Nazarewicz <m.nazarewicz@samsung.com> Cc: David Brownell <dbrownell@users.sourceforge.net> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2010-08-10USB: gadget: f_fs: use usb_string_ids_n()Michal Nazarewicz
Use usb_string_ids_n() function to simplify string ids registeration. Signed-off-by: Michal Nazarewicz <m.nazarewicz@samsung.com> Signed-off-by: Kyungmin Park <kyungmin.park@samsung.com> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2010-08-10USB: gadget: composite: usb_string_ids_*() functions addedMichal Nazarewicz
usb_string_ids_tab() and usb_string_ids_n() functions added to the composite framework. The first accepts an array of usb_string object and for each registeres a string id and the second registeres a given number of ids and returns the first. This may simplify string ids registration since gadgets and composite functions won't have to call usb_string_id() several times and each time check for errer status -- all this will be done with a single call. Signed-off-by: Michal Nazarewicz <m.nazarewicz@samsung.com> Signed-off-by: Kyungmin Park <kyungmin.park@samsung.com> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2010-08-10USB: gadget: f_fs: functionfs_add() renamed to functionfs_bind_config()Michal Nazarewicz
FunctionFS had a bit unique name for function used to add it to USB configuration. Renamed as to match naming convention of other functions. Signed-off-by: Michal Nazarewicz <m.nazarewicz@samsung.com> Signed-off-by: Kyungmin Park <kyungmin.park@samsung.com> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2010-08-10USB: gadget: f_mass_storage: fsg_add() renamed to fsg_bind_config()Michal Nazarewicz
Mass Storage Function had a bit unique name for function used to add it to USB configuration. Renamed as to match naming convention of other functions. Signed-off-by: Michal Nazarewicz <m.nazarewicz@samsung.com> Signed-off-by: Kyungmin Park <kyungmin.park@samsung.com> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2010-08-10USB: gadget: g_mass_storage: static data instead of dynamic allocationMichal Nazarewicz
This patch changes msg_do_config() function so that it uses a static object for a fsg_common structure instead of dynamically allocated. This is a micro-optimisation. Signed-off-by: Michal Nazarewicz <m.nazarewicz@samsung.com> Signed-off-by: Kyungmin Park <kyungmin.park@samsung.com> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2010-08-10USB: mon: kill BKL usageArnd Bergmann
compat_ioctl does not use the BKL, so I assume that the native function does not need it either. The open function is already protected by the driver's mutex, the BKL is probably not needed here either. Signed-off-by: Arnd Bergmann <arnd@arndb.de> Cc: Alan Stern <stern@rowland.harvard.edu> Cc: Pete Zaitcev <zaitcev@redhat.com> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2010-08-10usb: gadget: Do not take BKL for gadget->ops->ioctlArnd Bergmann
There is no gadget driver in the tree that actually implements the ioctl operation, so obviously it is not necessary to hold the BKL around the call. Signed-off-by: Arnd Bergmann <arnd@arndb.de> Cc: David Brownell <dbrownell@users.sourceforge.net> Cc: Michał Nazarewicz <m.nazarewicz@samsung.com> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2010-08-10USB-BKL: Remove BKL use in uhci-debugAndi Kleen
BKL was not really needed, just came from earlier push downs. The only part that's a bit dodgy is the lseek function. Would need another lock or atomic access to fpos on 32bit? Better to have a libfs lseek Signed-off-by: Andi Kleen <ak@linux.intel.com> Cc: Arnd Bergmann <arnd@arndb.de> Cc: Alan Stern <stern@rowland.harvard.edu> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2010-08-10USB-BKL: Remove BKL use for usb serial driver probingAndi Kleen
The usb serial driver initialization tried to use the BKL to stop driver modules from unloading, but that didn't work anyways. There was already some code to do proper try_module_get, but it was conditional on having a new probe interface. I checked all the low level drivers and they all have proper .owner = THIS_MODULE, so it's ok to always use. The other problem was the usb_serial_driver_list needing protection by a lock. This was broken anyways because unregister did not necessarily have the BKL. I extended the extending table_lock mutex to protect this case too. With these changes the BKL can be removed here. Signed-off-by: Andi Kleen <ak@linux.intel.com> Cc: Arnd Bergmann <arnd@arndb.de> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2010-08-10USB-BKL: Convert usb_driver ioctl to unlocked_ioctlAndi Kleen
And audit all the users. None needed the BKL. That was easy because there was only very few around. Tested with allmodconfig build on x86-64 Signed-off-by: Andi Kleen <ak@linux.intel.com> Cc: Arnd Bergmann <arnd@arndb.de> From: Andi Kleen <ak@linux.intel.com>
2010-08-10USB-BKL: Remove lock_kernel in usbfs update_sb()Andi Kleen
The code this is attempting to lock against does not use the BKL, so it's not needed. Most likely this code is still broken/racy (Al Viro also thinks so), but removing the BKL should not make it worse than before. Signed-off-by: Andi Kleen <ak@linux.intel.com> Cc: Arnd Bergmann <arnd@arndb.de> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2010-08-10usb: atm: fixed spacing and indentation coding style issuesNicolas Kaiser
Fixed spacing and indentation coding style issues. Signed-off-by: Nicolas Kaiser <nikai@nikai.net> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2010-08-10USB: Add a serial number parameter to g_file_storage moduleYann Cantin
This patch add a serial number parameter to the g_file_storage module. There's validity checks against the string passed to comply with the specs. Signed-off-by: Yann Cantin <yann.cantin@laposte.net> Cc: Michał Nazarewicz <m.nazarewicz@samsung.com> Cc: David Brownell <dbrownell@users.sourceforge.net> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2010-08-10usb: conexant: fixed spacing and brace coding style issuesNicolas Kaiser
Fixed spacing and brace coding style issues. Signed-off-by: Nicolas Kaiser <nikai@nikai.net> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2010-08-10USB: gadget: langwell_udc.c: printk needs a (unsigned long long) cast for a ↵Joe Perches
dma_t Signed-off-by: Joe Perches <joe@perches.com> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2010-08-10Revert "USB: Adding support for HTC Smartphones to ipaq"Leann Ogasawara
ipaq already had this device id defined: { USB_DEVICE(0x0BB4, 0x00CF) }, /* HTC USB Modem */ Revert the commit which adds the duplicate entry. This reverts commit 04cab1329336d4577d6638360c905e360934b425. Originally-by: Ben Collins <ben.collins@canonical.com> Signed-off-by: Leann Ogasawara <leann.ogasawara@canonical.com> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2010-08-10USB: option: Remove duplicate AMOI_VENDOR_IDLeann Ogasawara
AMOI_VENDOR_ID is defined twice. Remove the duplicate entry and move the AMOI_PRODUCT_9508 definition to be grouped with the other AMOI product definitions. Originally-by: Ben Collins <ben.collins@ubuntu.com> Signed-off-by: Leann Ogasawara <leann.ogasawara@canonical.com> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2010-08-10USB: EHCI: EHCI 1.1 addendum: Enable Per-port change detect bitsAlek Du
This patch will enable Per-port event feature defined in EHCI 1.1 addendum. This feature addresses an issue where HCD is currently required to read and parse PORTSC for all enabled root hub ports. With this patch, the overhead will be reduced. Signed-off-by: Alek Du <alek.du@intel.com> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2010-08-10USB: EHCI: EHCI 1.1 addendum: Basic LPM feature supportAlek Du
With this patch, the LPM capable EHCI host controller can put device into L1 sleep state which is a mode that can enter/exit quickly, and reduce power consumption. Signed-off-by: Jacob Pan <jacob.jun.pan@intel.com> Signed-off-by: Alek Du <alek.du@intel.com> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2010-08-10USB: EHCI: EHCI 1.1 addendum: preparationAlek Du
EHCI 1.1 addendum introduced several energy efficiency extensions for EHCI USB host controllers: 1. LPM (link power management) 2. Per-port change 3. Shorter periodic frame list 4. Hardware prefetching This patch is intended to define the HW bits and debug interface for EHCI 1.1 addendum. The LPM and Per-port change patches will be sent out after this patch. Signed-off-by: Jacob Pan <jacob.jun.pan@intel.com> Signed-off-by: Alek Du <alek.du@intel.com> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2010-08-10usb: throw away custom hex digit methodsAndy Shevchenko
Recent kernel has common method to convert hex digit to its value. Signed-off-by: Andy Shevchenko <ext-andriy.shevchenko@nokia.com> Cc: David Brownell <dbrownell@users.sourceforge.net> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2010-08-10USB: isd200.c: Remove unnecessary kmalloc castJoe Perches
Signed-off-by: Joe Perches <joe@perches.com> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2010-08-10USB: host: Eliminate NULL dereferenceJulia Lawall
The test above allows std to be NULL, so check that std is not NULL before doing the dereference. A simplified version of the semantic match that finds this problem is as follows: (http://coccinelle.lip6.fr/) // <smpl> @r exists@ expression E,E1; identifier f; statement S1,S2,S3; @@ if ((E == NULL && ...) || ...) { ... when != if (...) S1 else S2 when != E = E1 * E->f ... when any } else S3 // </smpl> Signed-off-by: Julia Lawall <julia@diku.dk> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2010-08-10USB: core endpoint: Fix Coding Stylescsanchez@neurowork.net
Fixed coding styles in the core usb endpoint. Signed-off-by: Carlos Sánchez Acosta <csanchez@neurowork.net> Signed-off-by: Alejandro Sánchez Acosta <asanchez@neurowork.net> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2010-08-10USB: core driver: Fix Coding Stylescsanchez@neurowork.net
Fixed coding styles in the core usb driver. Signed-off-by: Carlos Sánchez Acosta <csanchez@neurowork.net> Signed-off-by: Alejandro Sánchez Acosta <asanchez@neurowork.net> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2010-08-10USB: gadget: Use memdup_userJulia Lawall
Use memdup_user when user data is immediately copied into the allocated region. The semantic patch that makes this change is as follows: (http://coccinelle.lip6.fr/) // <smpl> @@ expression from,to,size,flag; position p; identifier l1,l2; @@ - to = \(kmalloc@p\|kzalloc@p\)(size,flag); + to = memdup_user(from,size); if ( - to==NULL + IS_ERR(to) || ...) { <+... when != goto l1; - -ENOMEM + PTR_ERR(to) ...+> } - if (copy_from_user(to, from, size) != 0) { - <+... when != goto l2; - -EFAULT - ...+> - } // </smpl> Signed-off-by: Julia Lawall <julia@diku.dk> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2010-08-10USB: EHCI: make CONFIG_USB_EHCI_TT_NEWSCHED default to YAlan Stern
This patch (as1382) changes the USB_EHCI_TT_NEWSCHED Kconfig option to be non-experimental and to default to Y. This option has existed for a long time, and I have not heard any complaints concerning it. By contrast, several people have reported that their devices could be made to work only by enabling the option. The point of changing the default is to cause the option to be enabled by distros that simply use the default settings for esoteric things like this. This change was motivated by Bugzilla #15649. Signed-off-by: Alan Stern <stern@rowland.harvard.edu> CC: David Brownell <david-b@pacbell.net> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2010-08-10USB: iuu_phoenix: Add support for different baud rates.James Courtier-Dutton
Signed-off-by: James Courtier-Dutton <James@superbug.co.uk> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2010-08-10USB: xhci: Remove obsolete debugging printk.Sarah Sharp
When code to manipulate the command register was refactored from xhci_run() to xhci_start(), a debugging statement was left behind that no longer applies. Remove that statement. Signed-off-by: Sarah Sharp <sarah.a.sharp@linux.intel.com> Reported-by: Sergei Shtylyov <sshtylyov@mvista.com> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2010-08-10USB: speedtouch: fixed more brace and spacing coding style issuesNicolas Kaiser
Fixed spacing coding style issues. Signed-off-by: Nicolas Kaiser <nikai@nikai.net> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2010-08-10USB: speedtouch: fixed brace and spacing coding style issuesNicolas Kaiser
Fixed brace coding style issues. Signed-off-by: Nicolas Kaiser <nikai@nikai.net> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2010-08-10USB: UHCI: acquire spinlock before calling start_rh()Alan Stern
This patch (as1392) fixes a bug in uhci-hcd: The start_rh() routine is supposed to be called with the private spinlock held. If an IRQ comes in at just the wrong time, the driver will think the controller has died when in fact it simply hasn't start yet. The patch also addresses some issues that may prevent an URB from being unlinked after the controller has stopped. This is an abnormal occurrence (ordinarily the controller stops only when the entire bus is suspended and hence there are no active URBs), so the pathways haven't gotten much testing. These two changes may be a little more than is strictly necessary, but clearly they won't hurt. Signed-off-by: Alan Stern <stern@rowland.harvard.edu> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2010-08-10USB: add check to detect host controller hardware removalAlan Stern
This patch (as1391) fixes a problem that can occur when USB host controller hardware is hot-unplugged. If no interrupts are generated by the unplug then the HCD may not realize that the controller is gone, and the subsequent unbind may hang waiting for interrupts that never arrive. The solution (for PCI-based controllers) is to call the HCD's interrupt handler at the start of usb_hcd_pci_remove(). If the hardware is gone, the handler will realize this when it tries to read the controller's status register. Signed-off-by: Alan Stern <stern@rowland.harvard.edu> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2010-08-10USB: don't stop root-hub status polls too soonAlan Stern
This patch (as1390) fixes a problem that crops up when a UHCI host controller is unbound from uhci-hcd while there are still some active URBs. The URBs have to be unlinked when the root hub is unregistered, and uhci-hcd relies upon root-hub status polls as part of its unlinking procedure. But usb_hcd_poll_rh_status() won't make those status calls if hcd->rh_registered is clear, and the flag is cleared _before_ the unregistration takes place. Since hcd->rh_registered is used for other things and needs to be cleared early, the solution is to add a new flag (rh_pollable) and use it instead. It gets cleared _after_ the root hub is unregistered. Now that the status polls don't end too soon, we have to make sure they also don't occur too late -- after the root hub's usb_device structure or the HCD's private structures are deallocated. Therefore the patch adds usb_get_device() and usb_put_device() calls to protect the root hub structure, and it adds an extra del_timer_sync() to prevent the root-hub timer from causing an unexpected status poll. This additional complexity would not be needed if the HCD framework had provided separate stop() and release() callbacks instead of just stop(). This lack could be fixed at some future time (although it would require changes to every host controller driver); when that happens this patch won't be needed any more. Signed-off-by: Alan Stern <stern@rowland.harvard.edu> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2010-08-10USB: fix failure path in usb_add_hcd()Alan Stern
This patch (as1389) fixes some errors in the failure pathway of usb_add_hcd(). The actions it takes ought to be exactly the same as those taken by usb_remove_hcd(), but they aren't. In one case (removal of the usb_bus_attr_group), the two routines are brought into agreement by changing usb_remove_hcd(). All the other discrepancies are fixed by changing usb_add_hcd(). Signed-off-by: Alan Stern <stern@rowland.harvard.edu> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2010-08-10Merge branch 'for-linus' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/geert/linux-m68k * 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/geert/linux-m68k: zorro: Fix reading of proc/bus/zorro/* in small chunks zorro: BKL removal m68k/mac: Fix RTC on PMU machines m68k/mac: Add color classic ii support arch/m68k/sun3/leds.c: Checkpatch cleanup
2010-08-10ARM: 6281/1: video/imxfb.c: allow usage without BACKLIGHT_CLASS_DEVICEEric Bénard
From: Eric Bénard <eric@eukrea.com> This fixes the following build failure: drivers/built-in.o: In function `imxfb_probe': mxcmmc.c:(.init.text+0xd04): undefined reference to `backlight_device_register' drivers/built-in.o: In function `imxfb_remove': mxcmmc.c:(.devexit.text+0x44): undefined reference to `backlight_device_unregister' that was introduced by 7a2bb23 (imxfb: add pwmr controlled backlight support) Signed-off-by: Eric Bénard <eric@eukrea.com> Signed-off-by: Uwe Kleine-König <u.kleine-koenig@pengutronix.de> Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2010-08-10Merge branch 'for-linus' of git://git390.marist.edu/pub/scm/linux-2.6Linus Torvalds
* 'for-linus' of git://git390.marist.edu/pub/scm/linux-2.6: [S390] dasd: tunable missing interrupt handler [S390] dasd: allocate fallback cqr for reserve/release [S390] topology: use default MC domain initializer [S390] initrd: change default load address [S390] cmm, smsgiucv_app: convert sender to uppercase [S390] cmm: add missing __init/__exit annotations [S390] cio: use all available paths for some internal I/O [S390] ccwreq: add ability to use all paths [S390] cio: ccw_device_online_store return -EINVAL in case of missing driver [S390] cio: Log the response from the unit check handler [S390] cio: CHSC SIOSL Support
2010-08-10Merge branch 'bkl/ioctl' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/frederic/random-tracing * 'bkl/ioctl' of git://git.kernel.org/pub/scm/linux/kernel/git/frederic/random-tracing: staging: Pushdown bkl to easycap ioctl handlers autofs/autofs4: Move compat_ioctl handling into fs v4l: Convert v4l2-dev to unlocked_ioctl ia64/perfmon: Convert to unlocked_ioctl sunrpc: Remove duplicated #include ncpfs: Remove duplicated #include
2010-08-10U6715 16550A serial driver supportPhilippe Langlais
UART Features extract from STEricsson U6715 data-sheet (arm926 SoC for mobile phone): * Fully compatible with industry standard 16C550 and 16C450 from various manufacturers * RX and TX 64 byte FIFO reduces CPU interrupts * Full double buffering * Modem control signals include CTS, RTS, (and DSR, DTR on UART1 only) * Automatic baud rate selection * Manual or automatic RTS/CTS smart hardware flow control * Programmable serial characteristics: – Baud rate generation (50 to 3.25M baud) – 5, 6, 7 or 8-bit characters – Even, odd or no-parity bit generation and detection – 1, 1.5 or 2 stop bit generation * Independent control of transmit, receive, line status, data set interrupts and FIFOs * Full status-reporting capabilities * Separate DMA signaling for RX and TX * Timed interrupt to spread receive interrupt on known duration * DMA time-out interrupt to allow detection of end of reception * Carkit pulse coding and decoding compliant with USB carkit control interface [40] In 16550A auto-configuration, if the fifo size is 64 then it's an U6 16550A port Add set_termios hook & export serial8250_do_set_termios to change uart clock following baudrate Signed-off-by: Philippe Langlais <philippe.langlais@stericsson.com> Acked-by: Alan Cox <alan@linux.intel.com> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2010-08-10Char: nozomi, set tty->driver_data appropriatelyJiri Slaby
Sorry, one more fix, this one depends on the other, so this is rather 2/2. -- tty->driver_data is used all over the code, but never set. This results in oopses like: BUG: unable to handle kernel NULL pointer dereference at 0000000000000130 IP: [<ffffffff814a0040>] mutex_lock+0x10/0x40 ... Pid: 2157, comm: modem-manager Not tainted 2.6.34.1-0.1-desktop #1 2768DR7/2768DR7 RIP: 0010:[<ffffffff814a0040>] [<ffffffff814a0040>] mutex_lock+0x10/0x40 RSP: 0018:ffff88007b16fa50 EFLAGS: 00010286 RAX: 0000000000000000 RBX: 0000000000000130 RCX: 0000000000000003 RDX: 0000000000000003 RSI: 0000000000000286 RDI: 0000000000000130 RBP: 0000000000001000 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000001 R11: 0000000000000000 R12: 0000000000000130 R13: 0000000000000001 R14: 0000000000000000 R15: ffff88007b16feb4 ... Call Trace: [<ffffffffa077690d>] ntty_write_room+0x4d/0x90 [nozomi] ... Set tty->driver_data to the computed port in .install to not recompute it in every place where needed. Switch .open to use driver_data too. Signed-off-by: Jiri Slaby <jslaby@suse.cz> Cc: Alan Cox <alan@linux.intel.com> Cc: stable <stable@kernel.org> [.34, .35] Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2010-08-10Char: nozomi, fix tty->count countingJiri Slaby
Currently ntty_install omits to increment tty count and we get the following warnings: Warning: dev (noz2) tty->count(0) != #fd's(1) in tty_open So to fix that, add one tty->count++ there. Signed-off-by: Jiri Slaby <jslaby@suse.cz> Cc: Alan Cox <alan@linux.intel.com> Cc: stable <stable@kernel.org> [.34, .35] Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>