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path: root/drivers/hsi/controllers
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2014-12-15Merge tag 'hsi-for-3.19' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/sre/linux-hsi Pull HSI update from Sebastian Reichel: "Misc fixes in omap-ssi and nokia-modem drivers" * tag 'hsi-for-3.19' of git://git.kernel.org/pub/scm/linux/kernel/git/sre/linux-hsi: HSI: nokia-modem: fix error handling of irq_of_parse_and_map HSI: nokia-modem: setup default value for pm parameter HSI: omap_ssi_port: Don't print uninitialized err HSI: remove deprecated IRQF_DISABLED
2014-12-14Merge tag 'driver-core-3.19-rc1' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/driver-core Pull driver core update from Greg KH: "Here's the set of driver core patches for 3.19-rc1. They are dominated by the removal of the .owner field in platform drivers. They touch a lot of files, but they are "simple" changes, just removing a line in a structure. Other than that, a few minor driver core and debugfs changes. There are some ath9k patches coming in through this tree that have been acked by the wireless maintainers as they relied on the debugfs changes. Everything has been in linux-next for a while" * tag 'driver-core-3.19-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/driver-core: (324 commits) Revert "ath: ath9k: use debugfs_create_devm_seqfile() helper for seq_file entries" fs: debugfs: add forward declaration for struct device type firmware class: Deletion of an unnecessary check before the function call "vunmap" firmware loader: fix hung task warning dump devcoredump: provide a one-way disable function device: Add dev_<level>_once variants ath: ath9k: use debugfs_create_devm_seqfile() helper for seq_file entries ath: use seq_file api for ath9k debugfs files debugfs: add helper function to create device related seq_file drivers/base: cacheinfo: remove noisy error boot message Revert "core: platform: add warning if driver has no owner" drivers: base: support cpu cache information interface to userspace via sysfs drivers: base: add cpu_device_create to support per-cpu devices topology: replace custom attribute macros with standard DEVICE_ATTR* cpumask: factor out show_cpumap into separate helper function driver core: Fix unbalanced device reference in drivers_probe driver core: fix race with userland in device_add() sysfs/kernfs: make read requests on pre-alloc files use the buffer. sysfs/kernfs: allow attributes to request write buffer be pre-allocated. fs: sysfs: return EGBIG on write if offset is larger than file size ...
2014-12-04hsi / OMAP / PM: Replace CONFIG_PM_RUNTIME with CONFIG_PMRafael J. Wysocki
After commit b2b49ccbdd54 (PM: Kconfig: Set PM_RUNTIME if PM_SLEEP is selected) PM_RUNTIME is always set if PM is set, so #ifdef blocks depending on CONFIG_PM_RUNTIME may now be changed to depend on CONFIG_PM. Do that for the omap_ssi driver. Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com> Acked-By: Sebastian Reichel <sre@kernel.org>
2014-10-20hsi: controllers: drop owner assignment from platform_driversWolfram Sang
A platform_driver does not need to set an owner, it will be populated by the driver core. Signed-off-by: Wolfram Sang <wsa@the-dreams.de>
2014-10-20HSI: omap_ssi_port: Don't print uninitialized errSebastian Reichel
Do not print err variable, that has nothing to do with the error. This fixes a warning, that is printed at build time: drivers/hsi/controllers/omap_ssi_port.c: In function ‘ssi_port_probe’: drivers/hsi/controllers/omap_ssi_port.c:1121:10: warning: ‘err’ may be used uninitialized in this function [-Wuninitialized] Signed-off-by: Sebastian Reichel <sre@kernel.org>
2014-07-31HSI: omap_ssi: Fix return value check in ssi_debug_add_ctrl()Wei Yongjun
In case of error, the function debugfs_create_*() returns NULL pointer not ERR_PTR() if debugfs is enabled. The IS_ERR() test in the return value check should be replaced with NULL test. Signed-off-by: Wei Yongjun <yongjun_wei@trendmicro.com.cn> Signed-off-by: Sebastian Reichel <sre@kernel.org>
2014-07-31HSI: omap_ssi_port: Fix return value check in ssi_debug_add_port()Wei Yongjun
In case of error, the function debugfs_create_*() returns NULL pointer not ERR_PTR() if debugfs is enabled. The IS_ERR() test in the return value check should be replaced with NULL test. Signed-off-by: Wei Yongjun <yongjun_wei@trendmicro.com.cn> Signed-off-by: Sebastian Reichel <sre@kernel.org>
2014-07-17drivers/hsi/controllers/omap_ssi{,_port}.c: fix failure checksAndrey Utkin
1. [linux-3.16-rc5/drivers/hsi/controllers/omap_ssi.c:357]: (style) Checking if unsigned variable 'gdd_irq' is less than zero. Source code is omap_ssi->gdd_irq = platform_get_irq_byname(pd, "gdd_mpu"); if (omap_ssi->gdd_irq < 0) { 2. [linux-3.16-rc5/drivers/hsi/controllers/omap_ssi_port.c:1017]: (style) Checking if unsigned variable 'irq' is less than zero. Source code is omap_port->irq = platform_get_irq(pd, 0); if (omap_port->irq < 0) { Bugzilla: https://bugzilla.kernel.org/show_bug.cgi?id=80441 Reported-by: David Binderman <dcb314@hotmail.com> Signed-off-by: Andrey Utkin <andrey.krieger.utkin@gmail.com> Signed-off-by: Sebastian Reichel <sre@kernel.org>
2014-06-05hsi: omap_ssi_port: use normal module refcountingArnd Bergmann
The ref_module() function is used for internal housekeeping of the module code, it's not normally used by subsystems or device drivers, and the use of ref_module in the omap_ssi_port driver causes a link build error when modules are disabled: hsi/controllers/omap_ssi_port.c: In function 'ssi_port_probe': hsi/controllers/omap_ssi_port.c:1119:2: error: implicit declaration of function 'ref_module' [-Werror=implicit-function-declaration] This changes the omap_ssi_port driver to use try_module_get() and module_put() instead, which is the normal way to ensure that the driver providing a device used in another module does not go away. Signed-off-by: Arnd Bergmann <arnd@arndb.de> Cc: Sebastian Reichel <sre@kernel.org> Cc: Carlos Chinea <carlos.chinea@nokia.com> Cc: Ivaylo Dimitrov <ivo.g.dimitrov.75@gmail.com> Signed-off-by: Sebastian Reichel <sre@kernel.org>
2014-05-16HSI: Introduce OMAP SSI driverSebastian Reichel
Add OMAP SSI driver to the HSI subsystem. The Synchronous Serial Interface (SSI) is a legacy version of HSI. As in the case of HSI, it is mainly used to connect Application engines (APE) with cellular modem engines (CMT) in cellular handsets. It provides a multichannel, full-duplex, multi-core communication with no reference clock. The OMAP SSI block is capable of reaching speeds of 110 Mbit/s. 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>