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path: root/drivers/staging/fieldbus/anybuss/host.c
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2021-04-13staging: fieldbus: simplify devm_anybuss_host_common_probeTian Tao
Use devm_add_action_or_reset() instead of devres_alloc() and devres_add(), which works the same. This will simplify the code. There is no functional changes. Signed-off-by: Tian Tao <tiantao6@hisilicon.com> Link: https://lore.kernel.org/r/1618275183-56792-1-git-send-email-tiantao6@hisilicon.com Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2019-09-30staging: fieldbus: move "offline mode" definition to fieldbus coreSven Van Asbroeck
anybus-s cards use the "offline mode" property to determine if process memory should be clear, set, or frozen when the card is offline. Move this property to the fieldbus core, so that it can become part of the future fieldbus config interface. Signed-off-by: Sven Van Asbroeck <TheSven73@gmail.com> Link: https://lore.kernel.org/r/20190918183552.28959-3-TheSven73@gmail.com Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2019-05-01staging: fieldbus: anybus-s: fix wait_for_completion_timeout return handlingNicholas Mc Guire
wait_for_completion_timeout() returns unsigned long (0 on timeout or remaining jiffies) not int. Assigning this return value to int may theoretically overflow (though not in this case where TIMEOUT is only HZ*2). Fix this inconsistency by wrapping the wait_for_completion_timeout into the if(). Signed-off-by: Nicholas Mc Guire <hofrat@osadl.org> Reviewed-by: Sven Van Asbroeck <TheSven73@gmail.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2019-04-30staging: fieldbus: anybus-s: rename bus id field to avoid confusionSven Van Asbroeck
Rename the anybus-s bus id from fieldbus_type to anybus_id, to avoid confusion with an identically named variable in the fieldbus_dev framework. Although this value is called fieldbus_type in the anybus-s docs, it acts like a bus id, so the name change is appropriate. Signed-off-by: Sven Van Asbroeck <TheSven73@gmail.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2019-04-30staging: fieldbus: anybus-s: keep device bus id in bus endiannessSven Van Asbroeck
"Normal" bus structures such as USB or PCI keep device bus ids in bus endinanness, and driver bus ids in host endianness. Endianness conversion happens each time bus_match() is called. Modify anybus-s to conform to this pattern. As a pleasant side- effect, sparse warnings will now disappear. This was suggested by Al Viro. Link: https://lkml.org/lkml/2019/4/30/834 Signed-off-by: Sven Van Asbroeck <TheSven73@gmail.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2019-04-17staging: fieldbus: anybus-s: support HMS Anybus-S busSven Van Asbroeck
The Anybus-S/Anybus-M is a series of interchangeable fieldbus communication modules featuring on board memory and processing power. All software and hardware functionality required to communicate on the fieldbus is incorporated in the module itself, allowing the application to focus on other tasks. Typical applications are frequency inverters, HMI and visualization devices, instruments, scales, robotics, PLC’s and intelligent measuring devices. Official documentation: https://www.anybus.com/docs/librariesprovider7/default-document-library/ manuals-design-guides/hms-hmsi-27-275.pdf Signed-off-by: Sven Van Asbroeck <TheSven73@gmail.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>