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2015-09-10mm: mark most vm_operations_struct constKirill A. Shutemov1-1/+1
With two exceptions (drm/qxl and drm/radeon) all vm_operations_struct structs should be constant. Signed-off-by: Kirill A. Shutemov <kirill.shutemov@linux.intel.com> Reviewed-by: Oleg Nesterov <oleg@redhat.com> Cc: "H. Peter Anvin" <hpa@zytor.com> Cc: Andy Lutomirski <luto@amacapital.net> Cc: Dave Hansen <dave.hansen@linux.intel.com> Cc: Ingo Molnar <mingo@elte.hu> Cc: Minchan Kim <minchan@kernel.org> Cc: Thomas Gleixner <tglx@linutronix.de> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2015-06-23HSI: nokia-modem: use flags argument of devm_gpiod_get to set directionUwe Kleine-König1-5/+2
Since 39b2bbe3d715 (gpio: add flags argument to gpiod_get*() functions) which appeared in v3.17-rc1, the gpiod_get* functions take an additional parameter that allows to specify direction and initial value for output. Use this to simplify the driver. Furthermore this is one caller less that stops us making the flags argument to gpiod_get*() mandatory. Signed-off-by: Uwe Kleine-König <u.kleine-koenig@pengutronix.de> Acked-by: Alexandre Courbot <acourbot@nvidia.com> Signed-off-by: Sebastian Reichel <sre@kernel.org>
2015-06-23HSI: nokia-modem: Reduce missing driver message to debug levelSebastian Reichel1-2/+2
Reduce message priority from dev_err to dev_dbg for missing cmt-speech or ssi-protocol drivers, since they will be probed again and it may result in spamming the boot log. Reported-by: Aaro Koskinen <aaro.koskinen@iki.fi> Signed-off-by: Sebastian Reichel <sre@kernel.org>
2015-06-23HSI: cmt_speech: fix timestamp interfaceSebastian Reichel1-2/+7
The user interface for timestamps in the new cmt_speech driver is broken in multiple ways: - The layout is incompatible between 32-bit and 64-bit user space, because of the size differences in 'struct timespec'. This means that the driver can not work when used with 32-bit user space on a 64-bit kernel. - As there are plans to change 32-bit user space to use a 64-bit time_t type in the future, it will also be incompatible with new 32-bit user space. - It is using ktime_get_ts under it's deprecated alias (do_posix_clock_monotonic_gettime). To keep support for the user space tools written for this driver (which have lived many years out-of-tree), the interface has been hardened to unsigned 32-bit values. Reported-by: Arnd Bergmann <arnd@arndb.de> Signed-off-by: Sebastian Reichel <sre@kernel.org>
2015-04-05HSI: cmt_speech: fix error return codeJulia Lawall1-0/+1
Return a negative error code on failure. A simplified version of the semantic match that finds this problem is as follows: (http://coccinelle.lip6.fr/) // <smpl> @@ identifier ret; expression e1,e2; @@ ( if (\(ret < 0\|ret != 0\)) { ... return ret; } | ret = 0 ) ... when != ret = e1 when != &ret *if(...) { ... when != ret = e2 when forall return ret; } // </smpl> Signed-off-by: Julia Lawall <Julia.Lawall@lip6.fr> Signed-off-by: Sebastian Reichel <sre@kernel.org>
2015-03-31HSI: nokia-modem: Add cmt-speech supportSebastian Reichel2-2/+32
Register cmt-speech driver in nokia-modem driver and forward hsi channel information. Acked-by: Aaro Koskinen <aaro.koskinen@iki.fi> Tested-by: Pavel Machek <pavel@ucw.cz> Signed-off-by: Sebastian Reichel <sre@kernel.org>
2015-03-31HSI: cmt_speech: Add cmt-speech driverKai Vehmanen3-0/+1467
Introduces the cmt-speech driver, which implements a character device interface for transferring speech data frames over HSI/SSI. The driver is used to exchange voice/speech data between the Nokia N900/N950/N9's modem and its cpu. Signed-off-by: Kai Vehmanen <kai.vehmanen@nokia.com> Signed-off-by: Carlos Chinea <carlos.chinea@nokia.com> Signed-off-by: Joni Lapilainen <joni.lapilainen@gmail.com> Since the original driver has been written for 2.6.28 some build fixes and general cleanups have been added by me: * fix build for 4.0 kernel * replace GFP_ATOMIC with GFP_KERNEL in cs_alloc_cmds() * add sanity check for CS_SET_WAKELINE ioctl * cleanup driver initialisation * rename driver to cmt-speech to be consistent with ssi-protocol driver * move cs-protocol.h to include/uapi/linux/hsi, since it describes a userspace API * replace hardcoded channels numbers with values provided via the HSI framework (e.g. coming from DT) Acked-by: Aaro Koskinen <aaro.koskinen@iki.fi> Tested-by: Pavel Machek <pavel@ucw.cz> Signed-off-by: Sebastian Reichel <sre@kernel.org>
2015-02-28HSI: nokia-modem: fix error return codeJulia Lawall1-0/+1
Return a negative error code on failure. A simplified version of the semantic match that finds this problem is as follows: (http://coccinelle.lip6.fr/) // <smpl> @@ identifier ret; expression e1,e2; @@ ( if (\(ret < 0\|ret != 0\)) { ... return ret; } | ret = 0 ) ... when != ret = e1 when != &ret *if(...) { ... when != ret = e2 when forall return ret; } // </smpl> Signed-off-by: Julia Lawall <Julia.Lawall@lip6.fr> Signed-off-by: Sebastian Reichel <sre@kernel.org>
2015-01-04hsi: nokia-modem: fix uninitialized device pointerAaro Koskinen1-0/+1
modem->device was never initialized. This resulted in logs such as: [ 241.386322] (NULL device *): CMT rst line change detected Signed-off-by: Aaro Koskinen <aaro.koskinen@iki.fi> Signed-off-by: Sebastian Reichel <sre@kernel.org>
2014-11-14HSI: nokia-modem: fix error handling of irq_of_parse_and_mapDmitry Torokhov1-2/+2
Return value of irq_of_parse_and_map() is unsigned int, with 0 indicating failure, so testing for negative result never works. Signed-off-by: Dmitry Torokhov <dtor@chromium.org> Signed-off-by: Sebastian Reichel <sre@kernel.org>
2014-11-14HSI: nokia-modem: setup default value for pm parameterSebastian Reichel1-1/+1
The module documents, that 1 is the default, but it actually isn't. This updates the module to use pm=1 as default. Signed-off-by: Sebastian Reichel <sre@kernel.org>
2014-10-03HSI: remove deprecated IRQF_DISABLEDMichael Opdenacker1-1/+1
Remove the use of the IRQF_DISABLED flag from drivers/hsi/clients/nokia-modem.c It's a NOOP since 2.6.35 and it will be removed soon. Signed-off-by: Michael Opdenacker <michael.opdenacker@free-electrons.com> Acked-by: Pavel Machek <pavel@ucw.cz> Signed-off-by: Sebastian Reichel <sre@kernel.org>
2014-08-06Merge tag 'hsi-for-3.17' of git://git.kernel.org/pub/scm/linux/kernel/git/sre/linux-hsiLinus Torvalds1-1/+1
Pull HSI changes from Sebastian Reichel: "Misc fixes in SSI related drivers" * tag 'hsi-for-3.17' of git://git.kernel.org/pub/scm/linux/kernel/git/sre/linux-hsi: HSI: omap_ssi: Fix return value check in ssi_debug_add_ctrl() HSI: omap_ssi_port: Fix return value check in ssi_debug_add_port() HSI: ssi_protocol: Fix sparse non static symbol warning drivers/hsi/controllers/omap_ssi{,_port}.c: fix failure checks
2014-07-20HSI: ssi_protocol: Fix sparse non static symbol warningWei Yongjun1-1/+1
Fixes the following sparse warning: drivers/hsi/clients/ssi_protocol.c:904:6: warning: symbol 'ssip_port_event' was not declared. Should it be static? Signed-off-by: Wei Yongjun <yongjun_wei@trendmicro.com.cn> Signed-off-by: Sebastian Reichel <sre@kernel.org>
2014-07-15net: set name_assign_type in alloc_netdev()Tom Gundersen1-1/+1
Extend alloc_netdev{,_mq{,s}}() to take name_assign_type as argument, and convert all users to pass NET_NAME_UNKNOWN. Coccinelle patch: @@ expression sizeof_priv, name, setup, txqs, rxqs, count; @@ ( -alloc_netdev_mqs(sizeof_priv, name, setup, txqs, rxqs) +alloc_netdev_mqs(sizeof_priv, name, NET_NAME_UNKNOWN, setup, txqs, rxqs) | -alloc_netdev_mq(sizeof_priv, name, setup, count) +alloc_netdev_mq(sizeof_priv, name, NET_NAME_UNKNOWN, setup, count) | -alloc_netdev(sizeof_priv, name, setup) +alloc_netdev(sizeof_priv, name, NET_NAME_UNKNOWN, setup) ) v9: move comments here from the wrong commit Signed-off-by: Tom Gundersen <teg@jklm.no> Reviewed-by: David Herrmann <dh.herrmann@gmail.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2014-06-03HSI: fix omap ssi driver dependencyArnd Bergmann1-1/+1
The SSI protocol implementation has an incorrect dependency on the OMAP_SSI driver, which allows SSI to be built-in while the underlying OMAP_SSI implementation is a loadable module, causing a link error. This changes the dependency to the simpler 'depends on OMAP_SSI' that also ensures that SSI-protocol can only be a module if OMAP_SSI is not built-in. Signed-off-by: Arnd Bergmann <arnd@arndb.de> Cc: Sebastian Reichel <sre@kernel.org> Cc: Ivaylo Dimitrov <ivo.g.dimitrov.75@gmail.com> Cc: Pavel Machek <pavel@ucw.cz> Signed-off-by: Sebastian Reichel <sre@kernel.org>
2014-05-16HSI: Introduce Nokia N900 modem driverSebastian Reichel3-0/+295
The Nokia N900's modem is connected via Synchronous Serial Interface (SSI), which is a legacy version of MIPI's High-speed Synchronous Serial Interface (HSI). The handles the GPIOs for enabling and resetting the modem and instanciates ssi-protocol for data exchange. It does not yet support exchanging voice data with the modem. Signed-off-by: Sebastian Reichel <sre@kernel.org> Reviewed-by: Pavel Machek <pavel@ucw.cz> Tested-By: Ivaylo Dimitrov <ivo.g.dimitrov.75@gmail.com>
2014-05-16HSI: Introduce driver for SSI ProtocolSebastian Reichel3-1/+1201
This adds a driver for the SSI McSAAB protocol as used in the Nokia N900. Signed-off-by: Carlos Chinea <carlos.chinea@nokia.com> Signed-off-by: Sebastian Reichel <sre@kernel.org> Tested-By: Ivaylo Dimitrov <ivo.g.dimitrov.75@gmail.com>
2014-05-16HSI: Add channel resource support to HSI clientsSebastian Reichel1-6/+6
Make HSI channel ids platform data, which can be provided by platform data. Signed-off-by: Sebastian Reichel <sre@kernel.org> Tested-By: Ivaylo Dimitrov <ivo.g.dimitrov.75@gmail.com>
2014-05-04HSI: hsi-char: fix driver for multiport scenariosSebastian Reichel1-1/+1
Fix return code check of alloc_chrdev_region, which returns 0 on success. Signed-off-by: Sebastian Reichel <sre@kernel.org> Reviewed-by: Pavel Machek <pavel@ucw.cz>
2013-01-03Drivers: misc: remove __dev* attributes.Greg Kroah-Hartman1-4/+4
CONFIG_HOTPLUG is going away as an option. As a result, the __dev* markings need to be removed. This change removes the use of __devinit, __devexit_p, __devinitdata, __devinitconst, and __devexit from these drivers. Based on patches originally written by Bill Pemberton, but redone by me in order to handle some of the coding style issues better, by hand. Cc: Bill Pemberton <wfp5p@virginia.edu> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2012-04-23HSI: hsi_char: Remove max_data_size from sysfsCarlos Chinea1-1/+1
Remove max_data_size sysfs entry. Otherwise is possible to have a buffer overrun if its value is increased after the device is open. Signed-off-by: Carlos Chinea <carlos.chinea@nokia.com> Acked-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org> Acked-by: Linus Walleij <linus.walleij@linaro.org>
2012-01-05HSI: hsi_char: Add HSI char device kernel configurationAndras Domokos2-0/+18
Add HSI character device kernel configuration Signed-off-by: Andras Domokos <andras.domokos@nokia.com> Signed-off-by: Carlos Chinea <carlos.chinea@nokia.com>
2012-01-05HSI: hsi_char: Add HSI char device driverAndras Domokos1-0/+802
Add HSI char device driver to the kernel. Signed-off-by: Andras Domokos <andras.domokos@nokia.com> Signed-off-by: Carlos Chinea <carlos.chinea@nokia.com>
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