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* hsi: Build hsi_boardinfo.c into hsi core if enabledAndrew F. Davis2016-06-151-781/+0
| | | | | | | | | | | If the HSI core is built as a module hsi_boardinfo may still be built-in as its Kconfig type is bool, which can cause build issues. Fix this by building this code into the HSI core when enabled. Reported-by: kbuild test robot <lkp@intel.com> Signed-off-by: Andrew F. Davis <afd@ti.com> Signed-off-by: Sebastian Reichel <sre@kernel.org>
* hsi: use kmemdupMuhammad Falak R Wani2016-05-291-4/+4
| | | | | | | | | Use kmemdup when some other buffer is immediately copied into allocated region. It replaces call to allocation followed by memcpy, by a single call to kmemdup. Signed-off-by: Muhammad Falak R Wani <falakreyaz@gmail.com> Signed-off-by: Sebastian Reichel <sre@kernel.org>
* hsi: correctly handle return value of kzallocInsu Yun2015-10-191-1/+11
| | | | | | | | Since kzalloc can be failed in memory pressure, its return value should be checked and handled. Signed-off-by: Insu Yun <wuninsu@gmail.com> Signed-off-by: Sebastian Reichel <sre@kernel.org>
* hsi: fix double kfreeGeliang Tang2015-10-141-1/+0
| | | | | | | | | When device_register() fails, kfree() is called in hsi_client_release(), hence there is no need to call kfree in err3 again. Fixes: a2aa24734d9db ("HSI: Add common DT binding for HSI client devices") Signed-off-by: Geliang Tang <geliangtang@163.com> Signed-off-by: Sebastian Reichel <sre@kernel.org>
* HSI: Add common DT binding for HSI client devicesSebastian Reichel2014-05-161-2/+206
| | | | | | | | Implement and document generic DT bindings for HSI clients. 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>
* HSI: export method to (un)register clientsSebastian Reichel2014-05-161-3/+8
| | | | | | | | | | | | | Expose method for registering and unregistering HSI clients, so that client drivers can register other client drivers. This is useful for HSI drivers, which want to use the functionality of other HSI drivers. For example the N900 modem driver can load HSI drivers for mcsaab protocol and speech protocol. 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>
* HSI: Add channel resource support to HSI clientsSebastian Reichel2014-05-161-1/+45
| | | | | | | | 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>
* HSI: method to unregister clients from an hsi portSebastian Reichel2014-05-161-0/+10
| | | | | | | | | This exports a method to unregister all clients from an hsi port. 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>
* hsi: convert bus code to use dev_groupsGreg Kroah-Hartman2013-10-161-4/+6
| | | | | | | | | | The dev_attrs field of struct bus_type is going away soon, dev_groups should be used instead. This converts the hsi code to use the correct field. Cc: Andrew Morton <akpm@linux-foundation.org> Cc: Kees Cook <keescook@chromium.org> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
* drivers: avoid format string in dev_set_nameKees Cook2013-07-031-1/+1
| | | | | | | | | | | Calling dev_set_name with a single paramter causes it to be handled as a format string. Many callers are passing potentially dynamic string content, so use "%s" in those cases to avoid any potential accidents, including wrappers like device_create*() and bdi_register(). Signed-off-by: Kees Cook <keescook@chromium.org> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
* hsi: fix kernel-doc warningsRandy Dunlap2013-03-011-1/+1
| | | | | | | | | | | | | | | | | | | | | | | Fix kernel-doc warnings in hsi files: Warning(include/linux/hsi/hsi.h:136): Excess struct/union/enum/typedef member 'e_handler' description in 'hsi_client' Warning(include/linux/hsi/hsi.h:136): Excess struct/union/enum/typedef member 'pclaimed' description in 'hsi_client' Warning(include/linux/hsi/hsi.h:136): Excess struct/union/enum/typedef member 'nb' description in 'hsi_client' Warning(drivers/hsi/hsi.c:434): No description found for parameter 'handler' Warning(drivers/hsi/hsi.c:434): Excess function parameter 'cb' description in 'hsi_register_port_event' Don't document "private:" fields with kernel-doc notation. If you want to leave them fully documented, that's OK, but then don't mark them as "private:". Signed-off-by: Randy Dunlap <rdunlap@infradead.org> Cc: Carlos Chinea <carlos.chinea@nokia.com> Cc: Linus Walleij <linus.walleij@linaro.org> Cc: Greg Kroah-Hartman <gregkh@linuxfoundation.org> Cc: linux-kernel@vger.kernel.org Cc: linux-omap@vger.kernel.org Acked-by: Nishanth Menon <nm@ti.com> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
* HSI: hsi: Rework hsi_event interfaceCarlos Chinea2012-04-231-47/+54
| | | | | | | | | | | | Remove custom hack and make use of the notifier chain interfaces for delivering events from the ports to their associated clients. Clients that want to receive port events need to register their callbacks using hsi_register_port_event(). The callbacks can be called in interrupt context. Use hsi_unregestier_port_event() to undo the registration. 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>
* HSI: hsi: Remove controllers and ports from the busCarlos Chinea2012-04-231-19/+1
| | | | | | | | | HSI controllers and ports do not belong to the HSI bus. Those devices are not supposed to have a driver attached to them. 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>
* HSI: hsi: Fix error path cleanup on client registrationCarlos Chinea2012-04-231-1/+1
| | | | | | | | | HSI client structure should be freed on error path after calling device_registration by dropping a reference to it. 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>
* HSI: hsi: Rework hsi_controller releaseCarlos Chinea2012-04-231-42/+66
| | | | | | | | | | Use the proper release mechanism for hsi_controller and hsi_ports structures. Free the structures through their associated device release callbacks. 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>
* HSI: hsi: Introducing HSI frameworkCarlos Chinea2012-01-051-0/+494
Adds HSI framework in to the linux kernel. High Speed Synchronous Serial Interface (HSI) is a serial interface mainly used for connecting application engines (APE) with cellular modem engines (CMT) in cellular handsets. HSI provides multiplexing for up to 16 logical channels, low-latency and full duplex communication. Signed-off-by: Carlos Chinea <carlos.chinea@nokia.com> Acked-by: Linus Walleij <linus.walleij@linaro.org>
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