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path: root/drivers/hsi
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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>
2012-04-23HSI: hsi: Rework hsi_event interfaceCarlos Chinea1-47/+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>
2012-04-23HSI: hsi: Remove controllers and ports from the busCarlos Chinea1-19/+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>
2012-04-23HSI: hsi: Fix error path cleanup on client registrationCarlos Chinea1-1/+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>
2012-04-23HSI: hsi: Rework hsi_controller releaseCarlos Chinea1-42/+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>
2012-01-05HSI: hsi_char: Add HSI char device kernel configurationAndras Domokos4-0/+21
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>
2012-01-05HSI: hsi: Introducing HSI frameworkCarlos Chinea5-0/+613
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>