kernel/drivers/tty/serial/serial_mctrl_gpio.h, branch linux-6.9.y

serial: mctrl_gpio: add a new API to enable / disable wake_irq

2022-02-08T10:07:16Z

Add a new API to enable / disable wake_irq in order to enable gpio irqs as wakeup irqs for the uart port. Signed-off-by: Erwan Le Ray Link: https://lore.kernel.org/r/20220203171644.12231-2-erwan.leray@foss.st.com Signed-off-by: Greg Kroah-Hartman

tty: serial: Use the correct style for SPDX License Identifier

2020-03-07T08:52:01Z

This patch corrects the SPDX License Identifier style in header files related to tty serial drivers. For C header files Documentation/process/license-rules.rst mandates C-like comments (opposed to C source files where C++ style should be used). Changes made by using a script provided by Joe Perches here: https://lkml.org/lkml/2019/2/7/46. Suggested-by: Joe Perches Signed-off-by: Nishad Kamdar Link: https://lore.kernel.org/r/20200301204517.GA10368@nishad Signed-off-by: Greg Kroah-Hartman

serial: mctrl_gpio: Avoid probe failures in case of missing gpiolib

2019-09-04T10:43:50Z

If CONFIG_GPIOLIB is not enabled, mctrl_gpio_init() and mctrl_gpio_init_noauto() will currently return an error pointer with -ENOSYS. As the mctrl GPIOs are usually optional, drivers need to check for this condition to allow continue probing. To avoid the need for this check in each driver, we return NULL instead, as all the mctrl_gpio_*() functions are skipped anyway. We also adapt mctrl_gpio_to_gpiod() to be in line with this change. Reviewed-by: Fabio Estevam Signed-off-by: Frieder Schrempf Reviewed-by: Uwe Kleine-Knig Link: https://lore.kernel.org/r/20190802100349.8659-1-frieder.schrempf@kontron.de Signed-off-by: Greg Kroah-Hartman

tty: serial: Remove redundant license text

2017-11-08T12:08:12Z

Now that the SPDX tag is in all tty files, that identifies the license in a specific and legally-defined manner. So the extra GPL text wording can be removed as it is no longer needed at all. This is done on a quest to remove the 700+ different ways that files in the kernel describe the GPL license text. And there's unneeded stuff like the address (sometimes incorrect) for the FSF which is never needed. No copyright headers or other non-license-description text was removed. Cc: Jiri Slaby Cc: Eric Anholt Cc: Stefan Wahren Cc: Florian Fainelli Cc: Ray Jui Cc: Scott Branden Cc: bcm-kernel-feedback-list@broadcom.com Cc: "James E.J. Bottomley" Cc: Helge Deller Cc: Joachim Eastwood Cc: Matthias Brugger Cc: Masahiro Yamada Cc: Tobias Klauser Cc: Russell King Cc: Vineet Gupta Cc: Richard Genoud Cc: Alexander Shiyan Cc: Baruch Siach Cc: Pat Gefre Cc: "Guilherme G. Piccoli" Cc: Jason Wessel Cc: Vladimir Zapolskiy Cc: Sylvain Lemieux Cc: Carlo Caione Cc: Kevin Hilman Cc: Liviu Dudau Cc: Sudeep Holla Cc: Lorenzo Pieralisi Cc: Andy Gross Cc: David Brown Cc: "Andreas Färber" Cc: Benjamin Herrenschmidt Cc: Paul Mackerras Cc: Michael Ellerman Cc: Kevin Cernekee Cc: Laxman Dewangan Cc: Thierry Reding Cc: Jonathan Hunter Cc: Barry Song Cc: Patrice Chotard Cc: Maxime Coquelin Cc: Alexandre Torgue Cc: Chris Metcalf Cc: Peter Korsgaard Cc: Timur Tabi Cc: Tony Prisk Cc: Michal Simek Cc: "Sören Brinkmann" Signed-off-by: Greg Kroah-Hartman

tty: add SPDX identifiers to all remaining files in drivers/tty/

2017-11-08T12:08:12Z

It's good to have SPDX identifiers in all files to make it easier to audit the kernel tree for correct licenses. Update the drivers/tty files files with the correct SPDX license identifier based on the license text in the file itself. The SPDX identifier is a legally binding shorthand, which can be used instead of the full boiler plate text. This work is based on a script and data from Thomas Gleixner, Philippe Ombredanne, and Kate Stewart. Cc: Jiri Slaby Cc: Benjamin Herrenschmidt Cc: Paul Mackerras Cc: Michael Ellerman Cc: Chris Metcalf Cc: Jiri Kosina Cc: David Sterba Cc: James Hogan Cc: Rob Herring Cc: Eric Anholt Cc: Stefan Wahren Cc: Florian Fainelli Cc: Ray Jui Cc: Scott Branden Cc: bcm-kernel-feedback-list@broadcom.com Cc: "James E.J. Bottomley" Cc: Helge Deller Cc: Joachim Eastwood Cc: Matthias Brugger Cc: Masahiro Yamada Cc: Tobias Klauser Cc: Russell King Cc: Vineet Gupta Cc: Richard Genoud Cc: Alexander Shiyan Cc: Baruch Siach Cc: "Maciej W. Rozycki" Cc: "Uwe Kleine-König" Cc: Pat Gefre Cc: "Guilherme G. Piccoli" Cc: Jason Wessel Cc: Vladimir Zapolskiy Cc: Sylvain Lemieux Cc: Carlo Caione Cc: Kevin Hilman Cc: Liviu Dudau Cc: Sudeep Holla Cc: Lorenzo Pieralisi Cc: Andy Gross Cc: David Brown Cc: "Andreas Färber" Cc: Kevin Cernekee Cc: Laxman Dewangan Cc: Thierry Reding Cc: Jonathan Hunter Cc: Barry Song Cc: Patrice Chotard Cc: Maxime Coquelin Cc: Alexandre Torgue Cc: "David S. Miller" Cc: Peter Korsgaard Cc: Timur Tabi Cc: Tony Prisk Cc: Michal Simek Cc: "Sören Brinkmann" Cc: Thomas Gleixner Cc: Kate Stewart Cc: Philippe Ombredanne Cc: Jiri Slaby Signed-off-by: Greg Kroah-Hartman

serial: mctrl_gpio: add modem control read routine

2016-06-25T21:30:42Z

mctrl_gpio_get_outputs() returns the state of following signals: RTS, DTR While defining the routine for reading outputs, fix the comment for mctrl_gpio_get() routine as it returns only the state of the input signals. Signed-off-by: Yegor Yefremov Signed-off-by: Greg Kroah-Hartman

serial: mctrl_gpio: Drop support for out1-gpios and out2-gpios

2016-05-01T20:22:54Z

The OUT1 and OUT2 pins present on some legacy UARTs are basically GPIOs. It doesn't make much sense to emulate GPIOs using other GPIOs, hence drop support for that. Signed-off-by: Geert Uytterhoeven Reviewed-by: Peter Hurley Reviewed-by: Richard Genoud Reviewed-by: Yegor Yefremov Signed-off-by: Greg Kroah-Hartman

serial: mctrl_gpio: Grammar s/lines GPIOs/line GPIOs/, /sets/set/

2016-04-30T16:26:55Z

Signed-off-by: Geert Uytterhoeven Signed-off-by: Greg Kroah-Hartman

serial: fix mctrl helper functions

2015-10-18T04:21:07Z

A recent patch to create common helper functions for modem control lines created empty helper functions in a header file, but accidentally did not mark them as 'static inline', which causes build errors: drivers/tty/serial/mxs-auart.o: In function `mctrl_gpio_enable_ms': mxs-auart.c:(.text+0x171c): multiple definition of `mctrl_gpio_enable_ms' drivers/tty/serial/clps711x.o:clps711x.c:(.text+0x768): first defined here drivers/tty/serial/mxs-auart.o: In function `mctrl_gpio_disable_ms': mxs-auart.c:(.text+0x1720): multiple definition of `mctrl_gpio_disable_ms' drivers/tty/serial/clps711x.o:clps711x.c:(.text+0x76c): first defined here This adds the missing annotation, so the functions do not get placed in each object file. Signed-off-by: Arnd Bergmann Fixes: ce59e48fdbad ("serial: mctrl_gpio: implement interrupt handling") Acked-by: Uwe Kleine-König Signed-off-by: Greg Kroah-Hartman

serial: mctrl_gpio: implement interrupt handling

2015-10-04T17:47:51Z

This allows to reduce the per-driver boiler plate considerably. Signed-off-by: Uwe Kleine-König Reviewed-by: Nicolas Ferre Signed-off-by: Greg Kroah-Hartman