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path: root/drivers/tty/serial/max310x.c
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2014-02-13serial: max310x: Fix build warningAlexander Shiyan
config: x86_64-randconfig-x006 (attached as .config) All warnings: drivers/tty/serial/max310x.c: In function 'max310x_probe': >> drivers/tty/serial/max310x.c:1240:1: warning: label 'out_uart' defined but not used [-Wunused-label] Reported-by: kbuild test robot <fengguang.wu@intel.com> Signed-off-by: Alexander Shiyan <shc_work@mail.ru> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2014-02-13serial: max310x: Fix build errorAlexander Shiyan
config: make ARCH=alpha allyesconfig All error/warnings: drivers/tty/serial/max310x.c: In function 'max310x_ioctl': >> drivers/tty/serial/max310x.c:905:7: error: 'TIOCSRS485' undeclared (first use in this function) drivers/tty/serial/max310x.c:905:7: note: each undeclared identifier is reported only once for each function it appears in >> drivers/tty/serial/max310x.c:906:3: error: implicit declaration of function 'copy_from_user' [-Werror=implicit-function-declaration] >> drivers/tty/serial/max310x.c:929:7: error: 'TIOCGRS485' undeclared (first use in this function) >> drivers/tty/serial/max310x.c:938:3: error: implicit declaration of function 'copy_to_user' [-Werror=implicit-function-declaration] cc1: some warnings being treated as errors Reported-by: kbuild test robot <fengguang.wu@intel.com> Signed-off-by: Alexander Shiyan <shc_work@mail.ru> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2014-02-13serial: max310x: Add devicetree supportAlexander Shiyan
This patch adds devicetree support for the MAX310X serial driver. Signed-off-by: Alexander Shiyan <shc_work@mail.ru> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2014-02-13serial: max310x: Driver cleanupAlexander Shiyan
This patch removes some unused definitions from driver code and sort #includes alphabetically. Signed-off-by: Alexander Shiyan <shc_work@mail.ru> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2014-02-13serial: max310x: Add support for RS-485 modeAlexander Shiyan
This patch adds support for RS-485 (TIOCSRS485/TIOCGRS485) IOCTLs. As a result this patch eliminate private driver header. Signed-off-by: Alexander Shiyan <shc_work@mail.ru> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2014-02-13serial: max310x: Add missing mutex_destroy() on driver exitAlexander Shiyan
Signed-off-by: Alexander Shiyan <shc_work@mail.ru> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2014-02-13serial: max310x: Always use dynamic GPIO ID assignmentAlexander Shiyan
Always register GPIOs and use dynamic GPIO ID assignment. This is no much worth if GPIOs is not used, but helps remove private driver header and add DT support in the future. Additionally, patch adds missing uart_unregister_driver() call if probe() fails. Signed-off-by: Alexander Shiyan <shc_work@mail.ru> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2014-02-13serial: max310x: Migrate to CLK APIAlexander Shiyan
This patch removes "frequency" parameter from MAX310X platform_data and uses CLK API for getting clock. Clock type (XTAL/OSC) is determined by clk name. Signed-off-by: Alexander Shiyan <shc_work@mail.ru> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2014-02-13serial: max310x: Move all SPI-dependent stuff in one placeAlexander Shiyan
Patch move all SPI-dependent stuff in one place. This include move PM-function definitions out of CONFIG_SPI_MASTER and move regmap initialization out of common probe into CONFIG_SPI_MASTER which may help to add I2C support in the future for this driver. Signed-off-by: Alexander Shiyan <shc_work@mail.ru> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2014-02-13serial: max310x: Remove IRQ validationAlexander Shiyan
This patch removes excess IRQ checks at driver probe(). IRQ validation is already provided by request_threaded_irq(). Signed-off-by: Alexander Shiyan <shc_work@mail.ru> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2014-02-13serial: max310x: Add the loopback mode supportAlexander Shiyan
This patch replaces loopback mode support from platform data to dynamic setup with TIOCMSET ioctl. Signed-off-by: Alexander Shiyan <shc_work@mail.ru> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2014-02-13serial: max310x: Remove excess port configure at startupAlexander Shiyan
Serial core calls set_termios() after port startup, so there are no reason to setup port twice. Signed-off-by: Alexander Shiyan <shc_work@mail.ru> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2014-02-13serial: max310x: Remove init() and exit() callbacksAlexander Shiyan
These callbacks were previously used for the IC power initialization. If this initialization will be needed in the future, it should be implemented with the regulator API. Signed-off-by: Alexander Shiyan <shc_work@mail.ru> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2014-02-13serial: max310x: Setup baud rate generator more preciselyAlexander Shiyan
This patch provide more precisely setup of baud rate generator. If the result of division has a remainder, we use the multiplier for the base frequency. Additionally, we report result baud rate back to serial core. Signed-off-by: Alexander Shiyan <shc_work@mail.ru> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2013-10-16tty: Remove unnecessary semicolonsJoe Perches
These aren't necessary after switch and while blocks. Signed-off-by: Joe Perches <joe@perches.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2013-07-29serial: max310x: Fix dev_pm_opsAlexander Shiyan
This patch fixes wrong dev_pm_ops which caused by commit: serial: max310x: Driver rework. CC drivers/tty/serial/max310x.o LD drivers/video/fb.o CC drivers/w1/slaves/w1_ds2433.o CC drivers/w1/slaves/w1_ds2760.o CC drivers/xen/balloon.o CC drivers/video/backlight/adp8870_bl.o drivers/tty/serial/max310x.c:1292:8: warning: initialization from incompatible pointer type [enabled by default] drivers/tty/serial/max310x.c:1292:8: warning: (near initialization for 'max310x_pm_ops.suspend') [enabled by default] drivers/tty/serial/max310x.c:1292:8: warning: initialization from incompatible pointer type [enabled by default] drivers/tty/serial/max310x.c:1292:8: warning: (near initialization for 'max310x_pm_ops.resume') [enabled by default] drivers/tty/serial/max310x.c:1292:8: warning: initialization from incompatible pointer type [enabled by default] drivers/tty/serial/max310x.c:1292:8: warning: (near initialization for 'max310x_pm_ops.freeze') [enabled by default] drivers/tty/serial/max310x.c:1292:8: warning: initialization from incompatible pointer type [enabled by default] drivers/tty/serial/max310x.c:1292:8: warning: (near initialization for 'max310x_pm_ops.thaw') [enabled by default] drivers/tty/serial/max310x.c:1292:8: warning: initialization from incompatible pointer type [enabled by default] drivers/tty/serial/max310x.c:1292:8: warning: (near initialization for 'max310x_pm_ops.poweroff') [enabled by default] drivers/tty/serial/max310x.c:1292:8: warning: initialization from incompatible pointer type [enabled by default] drivers/tty/serial/max310x.c:1292:8: warning: (near initialization for 'max310x_pm_ops.restore') [enabled by default] Reported-by: kbuild test robot <fengguang.wu@intel.com> Signed-off-by: Alexander Shiyan <shc_work@mail.ru> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2013-07-26serial: max310x: Add MAX14830 supportAlexander Shiyan
This patch adds support for MAX14830 (advanced quad universal asynchronous receiver-transmitter) into max310x driver. Signed-off-by: Alexander Shiyan <shc_work@mail.ru> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2013-07-26serial: max310x: Add MAX3109 supportAlexander Shiyan
This patch adds support for MAX3109 (advanced dual universal asynchronous receiver-transmitter) into max310x driver. Signed-off-by: Alexander Shiyan <shc_work@mail.ru> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2013-07-26serial: max310x: Driver reworkAlexander Shiyan
This patch rework max310x driver. Major changes have been made: - Prepare driver to support ICs with more than one UART. - Prepare driver to support work with I2C-bus. The patch changes almost every function and can not be divided into parts. Signed-off-by: Alexander Shiyan <shc_work@mail.ru> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2013-03-18tty: max310x: Use dev_pm_opsLars-Peter Clausen
Use dev_pm_ops instead of the deprecated legacy suspend/resume for the max310x driver. Cc: Alexander Shiyan <shc_work@mail.ru> Signed-off-by: Lars-Peter Clausen <lars@metafoo.de> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2013-01-15TTY: switch tty_flip_buffer_pushJiri Slaby
Now, we start converting tty buffer functions to actually use tty_port. This will allow us to get rid of the need of tty in many call sites. Only tty_port will needed and hence no more tty_port_tty_get in those paths. Now, the one where most of tty_port_tty_get gets removed: tty_flip_buffer_push. IOW we also closed all the races in drivers not using tty_port_tty_get at all yet. Also we move tty_flip_buffer_push declaration from include/linux/tty.h to include/linux/tty_flip.h to all others while we are changing it anyway. Signed-off-by: Jiri Slaby <jslaby@suse.cz> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2012-11-26serial: max310x: Setup missing "can_sleep" field for GPIOAlexander Shiyan
Signed-off-by: Alexander Shiyan <shc_work@mail.ru> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2012-11-21tty: remove use of __devexitBill Pemberton
CONFIG_HOTPLUG is going away as an option so __devexit is no longer needed. Signed-off-by: Bill Pemberton <wfp5p@virginia.edu> Cc: Jiri Slaby <jirislaby@gmail.com> Cc: Alan Cox <alan@linux.intel.com> Acked-by: Tobias Klauser <tklauser@distanz.ch> Cc: Lucas Tavares <lucaskt@linux.vnet.ibm.com> Cc: Daniel Walker <dwalker@fifo99.com> Cc: Bryan Huntsman <bryanh@codeaurora.org> Cc: "David S. Miller" <davem@davemloft.net> Cc: Peter Korsgaard <jacmet@sunsite.dk> Cc: Tony Prisk <linux@prisktech.co.nz> Acked-by: David Brown <davidb@codeaurora.org> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2012-11-21tty: remove use of __devinitBill Pemberton
CONFIG_HOTPLUG is going away as an option so __devinit is no longer needed. Signed-off-by: Bill Pemberton <wfp5p@virginia.edu> Cc: Jiri Slaby <jirislaby@gmail.com> Cc: Alan Cox <alan@linux.intel.com> Cc: Lucas Tavares <lucaskt@linux.vnet.ibm.com> Cc: "David S. Miller" <davem@davemloft.net> Cc: Peter Korsgaard <jacmet@sunsite.dk> Cc: Tony Prisk <linux@prisktech.co.nz> Acked-by: Tobias Klauser <tklauser@distanz.ch> Acked-by: Nicolas Ferre <nicolas.ferre@atmel.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2012-11-21tty: serial: remove use of __devexit_pBill Pemberton
CONFIG_HOTPLUG is going away as an option so __devexit_p is no longer needed. Signed-off-by: Bill Pemberton <wfp5p@virginia.edu> Cc: Alan Cox <alan@linux.intel.com> Cc: Lucas Tavares <lucaskt@linux.vnet.ibm.com> Cc: "David S. Miller" <davem@davemloft.net> Cc: Peter Korsgaard <jacmet@sunsite.dk> Cc: Tony Prisk <linux@prisktech.co.nz> Acked-by: Tobias Klauser <tklauser@distanz.ch> Acked-by: Nicolas Ferre <nicolas.ferre@atmel.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2012-11-14tty: serial: max310x: Add terminating entry for spi_device_id tableAxel Lin
The spi_device_id table is supposed to be zero-terminated. Signed-off-by: Axel Lin <axel.lin@ingics.com> Cc: stable <stable@vger.kernel.org> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2012-09-05tty: serial: max310x: Remove explicit use of devm_kfreeEmil Goode
There is no reason to explicitly call devm_kfree in probe or remove functions. Signed-off-by: Emil Goode <emilgoode@gmail.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2012-09-05tty: serial: max310x: Check return code of gpiochip_removeEmil Goode
The gpiochip_remove function may fail to remove a gpio_chip if any GPIOs are still requested. This patch informs the caller of such a senario. Sparse is warning because the function prototype has a __must_check annotation. Sparse warning: drivers/tty/serial/max310x.c:1223:18: warning: ignoring return value of ‘gpiochip_remove’, declared with attribute warn_unused_result [-Wunused-result] Signed-off-by: Emil Goode <emilgoode@gmail.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2012-08-16serial: New serial driver MAX310XAlexander Shiyan
This driver is a replacement for a MAX3107 driver with a lot of improvements and new features. The main differences from the old version: - Using the regmap. - Using devm_XXX-related functions. - The use of threaded IRQ with IRQF_ONESHOT flag allows the driver to the hardware that supports only level IRQ. - Improved error handling of serial port, improved FIFO handling, improved hardware & software flow control. - Advanced flags allows turn on RS-485 mode (Auto direction control). - Ability to load multiple instances of drivers. - Added support for MAX3108. - GPIO support. - Driver is quite ready for adding I2C support and support other ICs with compatible registers set (MAX3109, MAX14830). Signed-off-by: Alexander Shiyan <shc_work@mail.ru> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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