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path: root/drivers/tty/serial/mpc52xx_uart.c (follow)
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* serial: mpc52xx: Convert to platform remove callback returning voidUwe Kleine-König2023-11-231-5/+2
| | | | | | | | | | | | | | | | | | | The .remove() callback for a platform driver returns an int which makes many driver authors wrongly assume it's possible to do error handling by returning an error code. However the value returned is ignored (apart from emitting a warning) and this typically results in resource leaks. To improve here there is a quest to make the remove callback return void. In the first step of this quest all drivers are converted to .remove_new(), which already returns void. Eventually after all drivers are converted, .remove_new() will be renamed to .remove(). Trivially convert this driver from always returning zero in the remove callback to the void returning variant. Signed-off-by: Uwe Kleine-König <u.kleine-koenig@pengutronix.de> Link: https://lore.kernel.org/r/20231110152927.70601-26-u.kleine-koenig@pengutronix.de Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
* serial: mpc52xx: Use port lock wrappersThomas Gleixner2023-09-181-6/+6
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | When a serial port is used for kernel console output, then all modifications to the UART registers which are done from other contexts, e.g. getty, termios, are interference points for the kernel console. So far this has been ignored and the printk output is based on the principle of hope. The rework of the console infrastructure which aims to support threaded and atomic consoles, requires to mark sections which modify the UART registers as unsafe. This allows the atomic write function to make informed decisions and eventually to restore operational state. It also allows to prevent the regular UART code from modifying UART registers while printk output is in progress. All modifications of UART registers are guarded by the UART port lock, which provides an obvious synchronization point with the console infrastructure. To avoid adding this functionality to all UART drivers, wrap the spin_[un]lock*() invocations for uart_port::lock into helper functions which just contain the spin_[un]lock*() invocations for now. In a subsequent step these helpers will gain the console synchronization mechanisms. Converted with coccinelle. No functional change. Signed-off-by: Thomas Gleixner <tglx@linutronix.de> Signed-off-by: John Ogness <john.ogness@linutronix.de> Link: https://lore.kernel.org/r/20230914183831.587273-40-john.ogness@linutronix.de Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
* tty: Explicitly include correct DT includesRob Herring2023-07-251-1/+1
| | | | | | | | | | | | | | | | The DT of_device.h and of_platform.h date back to the separate of_platform_bus_type before it as merged into the regular platform bus. As part of that merge prepping Arm DT support 13 years ago, they "temporarily" include each other. They also include platform_device.h and of.h. As a result, there's a pretty much random mix of those include files used throughout the tree. In order to detangle these headers and replace the implicit includes with struct declarations, users need to explicitly include the correct includes. Signed-off-by: Rob Herring <robh@kernel.org> Acked-by: Uwe Kleine-König <u.kleine-koenig@pengutronix.de> # for imx Link: https://lore.kernel.org/r/20230724205440.767071-1-robh@kernel.org Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
* tty: serial: use uart_port_tx() helperJiri Slaby (SUSE)2022-11-031-35/+4
| | | | | | | | | | | | | | | | | | | | | | | | | | uart_port_tx() is a new helper to send characters to the device. Use it in these drivers. Cc: Tobias Klauser <tklauser@distanz.ch> Cc: Richard Genoud <richard.genoud@gmail.com> Cc: Nicolas Ferre <nicolas.ferre@microchip.com> Cc: Alexandre Belloni <alexandre.belloni@bootlin.com> Cc: Claudiu Beznea <claudiu.beznea@microchip.com> Cc: Vladimir Zapolskiy <vz@mleia.com> Cc: Liviu Dudau <liviu.dudau@arm.com> Cc: Sudeep Holla <sudeep.holla@arm.com> Cc: Lorenzo Pieralisi <lorenzo.pieralisi@arm.com> Cc: Shawn Guo <shawnguo@kernel.org> Cc: Sascha Hauer <s.hauer@pengutronix.de> Cc: Pengutronix Kernel Team <kernel@pengutronix.de> Cc: Fabio Estevam <festevam@gmail.com> Cc: NXP Linux Team <linux-imx@nxp.com> Cc: "Andreas Färber" <afaerber@suse.de> Cc: Manivannan Sadhasivam <mani@kernel.org> Reviewed-by: Ilpo Järvinen <ilpo.jarvinen@linux.intel.com> Signed-off-by: Jiri Slaby (SUSE) <jirislaby@kernel.org> Link: https://lore.kernel.org/r/20221004104927.14361-3-jirislaby@kernel.org Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
* tty: serial: switch mpc52xx_uart_int_{r,t}x_chars() to boolJiri Slaby2022-09-221-9/+9
| | | | | | | | | | | | | | mpc52xx_uart_int_rx_chars() returns unsigned int. mpc52xx_uart_int_tx_chars() returns int. The both results are binary ORed to the "keepgoing" variable. Unify all three to bool as the only interesting value is whether we should keep looping (true/false). Reviewed-by: Ilpo Järvinen <ilpo.jarvinen@linux.intel.com> Signed-off-by: Jiri Slaby <jslaby@suse.cz> Link: https://lore.kernel.org/r/20220920052049.20507-7-jslaby@suse.cz Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
* serial: Make ->set_termios() old ktermios constIlpo Järvinen2022-08-301-6/+6
| | | | | | | | | | There should be no reason to adjust old ktermios which is going to get discarded anyway. Reviewed-by: Andy Shevchenko <andy.shevchenko@gmail.com> Signed-off-by: Ilpo Järvinen <ilpo.jarvinen@linux.intel.com> Link: https://lore.kernel.org/r/20220816115739.10928-7-ilpo.jarvinen@linux.intel.com Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
* powerpc/mpc5xxx: Switch mpc5xxx_get_bus_frequency() to use fwnodeAndy Shevchenko2022-06-221-2/+2
| | | | | | | | | | | | | | | | | Switch mpc5xxx_get_bus_frequency() to use fwnode in order to help cleaning up other parts of the kernel from OF specific code. No functional change intended. Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com> Acked-by: Chris Packham <chris.packham@alliedtelesis.co.nz> # for i2c-mpc Acked-by: Wolfram Sang <wsa@kernel.org> # for the I2C part Acked-by: Mark Brown <broonie@kernel.org> Acked-by: Marc Kleine-Budde <mkl@pengutronix.de> # for mscan/mpc5xxx_can Acked-by: Damien Le Moal <damien.lemoal@opensource.wdc.com> Signed-off-by: Michael Ellerman <mpe@ellerman.id.au> Link: https://lore.kernel.org/r/20220507100147.5802-2-andriy.shevchenko@linux.intel.com
* tty: serial: Prepare cleanup of powerpc's asm/prom.hChristophe Leroy2022-04-151-0/+2
| | | | | | | | | | | | | powerpc's asm/prom.h brings some headers that it doesn't need itself. In order to clean it up, first add missing headers in users of asm/prom.h Reviewed-by: Jiri Slaby <jirislaby@kernel.org> Signed-off-by: Christophe Leroy <christophe.leroy@csgroup.eu> Link: https://lore.kernel.org/r/49fc0d4b6446da630b1e9f29c4bab38f8ed087bf.1648833419.git.christophe.leroy@csgroup.eu Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
* tty: serial: mpc52xx_uart: remove double ifdefferyJiri Slaby2022-04-141-3/+0
| | | | | | | | | | | | | | | | | | The code now contains: #ifdef CONFIG_PPC_MPC512x ... #endif #ifdef CONFIG_PPC_MPC512x ... #endif So remove the endif+ifdef from the middle, provided it's about the same define. Signed-off-by: Jiri Slaby <jslaby@suse.cz> Link: https://lore.kernel.org/r/20220411104506.8990-2-jslaby@suse.cz Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
* tty: serial: mpc52xx_uart: make rx/tx hooks return unsigned, part II.Jiri Slaby2022-04-041-10/+10
| | | | | | | | | | | | | | | | | | | | | | | The below commit changed types of some hooks in struct psc_ops. It also changed the types of the functions which are referenced in the instances of the above struct. However the commit did so only for CONFIG_PPC_MPC52xx, but not for CONFIG_PPC_MPC512x. This results in build errors like: mpc52xx_uart.c:static unsigned int mpc52xx_psc_raw_tx_rdy(struct uart_port *port) mpc52xx_uart.c:static int mpc512x_psc_raw_tx_rdy(struct uart_port *port) ^^^ mpc52xx_uart.c:static int mpc5125_psc_raw_tx_rdy(struct uart_port *port) ^^^ Therefore, fix the latter case now too. Fixes: 18662a1d8f35 (tty: serial: mpc52xx_uart: make rx/tx hooks return unsigned) Cc: Linus Torvalds <torvalds@linux-foundation.org> Reported-by: Guenter Roeck <linux@roeck-us.net> Signed-off-by: Jiri Slaby <jslaby@suse.cz> Link: https://lore.kernel.org/r/20220404055122.31194-1-jslaby@suse.cz Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
* tty: serial: mpc52xx_uart: make rx/tx hooks return unsignedJiri Slaby2022-02-251-11/+11
| | | | | | | | | All these return bitmasks, so it makes more sense to return unsigned -- this is what a reader and also all the callers expect. Signed-off-by: Jiri Slaby <jslaby@suse.cz> Link: https://lore.kernel.org/r/20220224111028.20917-2-jslaby@suse.cz Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
* serial: mpc52xx_uart: drop low-latency workaroundJohan Hovold2021-04-221-2/+0
| | | | | | | | | | | | | | | Commit fbe543b412ce ("Fix a potential issue in mpc52xx uart driver") worked around the infamous low_latency behaviour of tty_flip_buffer_push() by simply dropping and reacquiring the port lock in the interrupt handler. Since commit a9c3f68f3cd8 ("tty: Fix low_latency BUG"), tty_flip_buffer_push() always schedules a work item to push data to the line discipline and there's no need to keep any low_latency hacks around. Signed-off-by: Johan Hovold <johan@kernel.org> Link: https://lore.kernel.org/r/20210421095509.3024-16-johan@kernel.org Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
* tty/serial: mpc52xx_uart: Don't zero port->sysrqDmitry Safonov2019-12-181-3/+1
| | | | | | | | uart_handle_sysrq_char() already does it. Signed-off-by: Dmitry Safonov <dima@arista.com> Link: https://lore.kernel.org/r/20191213000657.931618-25-dima@arista.com Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
* tty/serial: Migrate mpc52xx_uart to use has_sysrqDmitry Safonov2019-12-181-6/+1
| | | | | | | | | | | | | | | The SUPPORT_SYSRQ ifdeffery is not nice as: - May create misunderstanding about sizeof(struct uart_port) between different objects - Prevents moving functions from serial_core.h - Reduces readability (well, it's ifdeffery - it's hard to follow) In order to remove SUPPORT_SYSRQ, has_sysrq variable has been added. Initialise it in driver's probe and remove ifdeffery. Signed-off-by: Dmitry Safonov <dima@arista.com> Link: https://lore.kernel.org/r/20191213000657.931618-24-dima@arista.com Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
* tty: serial: Remove redundant license textGreg Kroah-Hartman2017-11-081-4/+0
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | 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 <jslaby@suse.com> Cc: Eric Anholt <eric@anholt.net> Cc: Stefan Wahren <stefan.wahren@i2se.com> Cc: Florian Fainelli <f.fainelli@gmail.com> Cc: Ray Jui <rjui@broadcom.com> Cc: Scott Branden <sbranden@broadcom.com> Cc: bcm-kernel-feedback-list@broadcom.com Cc: "James E.J. Bottomley" <jejb@parisc-linux.org> Cc: Helge Deller <deller@gmx.de> Cc: Joachim Eastwood <manabian@gmail.com> Cc: Matthias Brugger <matthias.bgg@gmail.com> Cc: Masahiro Yamada <yamada.masahiro@socionext.com> Cc: Tobias Klauser <tklauser@distanz.ch> Cc: Russell King <linux@armlinux.org.uk> Cc: Vineet Gupta <vgupta@synopsys.com> Cc: Richard Genoud <richard.genoud@gmail.com> Cc: Alexander Shiyan <shc_work@mail.ru> Cc: Baruch Siach <baruch@tkos.co.il> Cc: Pat Gefre <pfg@sgi.com> Cc: "Guilherme G. Piccoli" <gpiccoli@linux.vnet.ibm.com> Cc: Jason Wessel <jason.wessel@windriver.com> Cc: Vladimir Zapolskiy <vz@mleia.com> Cc: Sylvain Lemieux <slemieux.tyco@gmail.com> Cc: Carlo Caione <carlo@caione.org> Cc: Kevin Hilman <khilman@baylibre.com> Cc: Liviu Dudau <liviu.dudau@arm.com> Cc: Sudeep Holla <sudeep.holla@arm.com> Cc: Lorenzo Pieralisi <lorenzo.pieralisi@arm.com> Cc: Andy Gross <andy.gross@linaro.org> Cc: David Brown <david.brown@linaro.org> Cc: "Andreas Färber" <afaerber@suse.de> Cc: Benjamin Herrenschmidt <benh@kernel.crashing.org> Cc: Paul Mackerras <paulus@samba.org> Cc: Michael Ellerman <mpe@ellerman.id.au> Cc: Kevin Cernekee <cernekee@gmail.com> Cc: Laxman Dewangan <ldewangan@nvidia.com> Cc: Thierry Reding <thierry.reding@gmail.com> Cc: Jonathan Hunter <jonathanh@nvidia.com> Cc: Barry Song <baohua@kernel.org> Cc: Patrice Chotard <patrice.chotard@st.com> Cc: Maxime Coquelin <mcoquelin.stm32@gmail.com> Cc: Alexandre Torgue <alexandre.torgue@st.com> Cc: Chris Metcalf <cmetcalf@mellanox.com> Cc: Peter Korsgaard <jacmet@sunsite.dk> Cc: Timur Tabi <timur@tabi.org> Cc: Tony Prisk <linux@prisktech.co.nz> Cc: Michal Simek <michal.simek@xilinx.com> Cc: "Sören Brinkmann" <soren.brinkmann@xilinx.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
* tty: add SPDX identifiers to all remaining files in drivers/tty/Greg Kroah-Hartman2017-11-081-0/+1
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | 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 <jslaby@suse.com> Cc: Benjamin Herrenschmidt <benh@kernel.crashing.org> Cc: Paul Mackerras <paulus@samba.org> Cc: Michael Ellerman <mpe@ellerman.id.au> Cc: Chris Metcalf <cmetcalf@mellanox.com> Cc: Jiri Kosina <jikos@kernel.org> Cc: David Sterba <dsterba@suse.com> Cc: James Hogan <jhogan@kernel.org> Cc: Rob Herring <robh@kernel.org> Cc: Eric Anholt <eric@anholt.net> Cc: Stefan Wahren <stefan.wahren@i2se.com> Cc: Florian Fainelli <f.fainelli@gmail.com> Cc: Ray Jui <rjui@broadcom.com> Cc: Scott Branden <sbranden@broadcom.com> Cc: bcm-kernel-feedback-list@broadcom.com Cc: "James E.J. Bottomley" <jejb@parisc-linux.org> Cc: Helge Deller <deller@gmx.de> Cc: Joachim Eastwood <manabian@gmail.com> Cc: Matthias Brugger <matthias.bgg@gmail.com> Cc: Masahiro Yamada <yamada.masahiro@socionext.com> Cc: Tobias Klauser <tklauser@distanz.ch> Cc: Russell King <linux@armlinux.org.uk> Cc: Vineet Gupta <vgupta@synopsys.com> Cc: Richard Genoud <richard.genoud@gmail.com> Cc: Alexander Shiyan <shc_work@mail.ru> Cc: Baruch Siach <baruch@tkos.co.il> Cc: "Maciej W. Rozycki" <macro@linux-mips.org> Cc: "Uwe Kleine-König" <kernel@pengutronix.de> Cc: Pat Gefre <pfg@sgi.com> Cc: "Guilherme G. Piccoli" <gpiccoli@linux.vnet.ibm.com> Cc: Jason Wessel <jason.wessel@windriver.com> Cc: Vladimir Zapolskiy <vz@mleia.com> Cc: Sylvain Lemieux <slemieux.tyco@gmail.com> Cc: Carlo Caione <carlo@caione.org> Cc: Kevin Hilman <khilman@baylibre.com> Cc: Liviu Dudau <liviu.dudau@arm.com> Cc: Sudeep Holla <sudeep.holla@arm.com> Cc: Lorenzo Pieralisi <lorenzo.pieralisi@arm.com> Cc: Andy Gross <andy.gross@linaro.org> Cc: David Brown <david.brown@linaro.org> Cc: "Andreas Färber" <afaerber@suse.de> Cc: Kevin Cernekee <cernekee@gmail.com> Cc: Laxman Dewangan <ldewangan@nvidia.com> Cc: Thierry Reding <thierry.reding@gmail.com> Cc: Jonathan Hunter <jonathanh@nvidia.com> Cc: Barry Song <baohua@kernel.org> Cc: Patrice Chotard <patrice.chotard@st.com> Cc: Maxime Coquelin <mcoquelin.stm32@gmail.com> Cc: Alexandre Torgue <alexandre.torgue@st.com> Cc: "David S. Miller" <davem@davemloft.net> Cc: Peter Korsgaard <jacmet@sunsite.dk> Cc: Timur Tabi <timur@tabi.org> Cc: Tony Prisk <linux@prisktech.co.nz> Cc: Michal Simek <michal.simek@xilinx.com> Cc: "Sören Brinkmann" <soren.brinkmann@xilinx.com> Cc: Thomas Gleixner <tglx@linutronix.de> Cc: Kate Stewart <kstewart@linuxfoundation.org> Cc: Philippe Ombredanne <pombredanne@nexb.com> Cc: Jiri Slaby <jslaby@suse.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
* serial: mpc52xx: constify uart_ops structuresJulia Lawall2017-08-281-1/+1
| | | | | | | | | | | These uart_ops structures are only stored in the ops field of a uart_port structure and this fields is const, so the uart_ops structures can also be const. Done with the help of Coccinelle. Signed-off-by: Julia Lawall <Julia.Lawall@lip6.fr> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
* tty: Convert to using %pOF instead of full_nameRob Herring2017-07-301-6/+6
| | | | | | | | | | | | | | | | | | Now that we have a custom printf format specifier, convert users of full_name to use %pOF instead. This is preparation to remove storing of the full path string for each node. Signed-off-by: Rob Herring <robh@kernel.org> Acked-by: David S. Miller <davem@davemloft.net> Cc: Jiri Slaby <jslaby@suse.com> Cc: Benjamin Herrenschmidt <benh@kernel.crashing.org> Cc: Paul Mackerras <paulus@samba.org> Cc: Michael Ellerman <mpe@ellerman.id.au> Cc: "David S. Miller" <davem@davemloft.net> Cc: linuxppc-dev@lists.ozlabs.org Cc: linux-serial@vger.kernel.org Cc: sparclinux@vger.kernel.org Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
* tty: serial: constify psc_ops structsAya Mahfouz2016-02-071-4/+4
| | | | | | | | | | | | Constifies psc_ops structures in tty's serial port driver since they are not modified after their initialization. Detected and found using Coccinelle. Suggested-by: Julia Lawall <Julia.Lawall@lip6.fr> Signed-off-by: Aya Mahfouz <mahfouz.saif.elyazal@gmail.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
* serial: mpc52xx: add delay after resetting transmitter to fix broken charsUwe Kleine-König2015-10-041-0/+7
| | | | | | | | | | | | | | This fixes receiving broken characters on the console from an MPC5125 system when systemd comes up which repeatedly opens and shuts down the console device. Trial and error with the needed interval showed that 500 us are good enough most of the time when using 38400 Bd, so I think 1 ms is a good compromise between fixing the issue and not penalize faster setups too much. Signed-off-by: Uwe Kleine-König <u.kleine-koenig@pengutronix.de> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
* serial: mpc52xx: let tx_empty callback return either 0 or TIOCSER_TEMTUwe Kleine-König2015-08-051-2/+3
| | | | | | | | | | | | Documenation/serial/driver requests that the tx_empty callback should return 0 if there are still chars in the fifo or shifter or TIOCSER_TEMT (0x01) if no character is pending to be sent. Fix the mpc52xx serial driver to not return MPC52xx_PSC_SR_TXEMP (i.e. 0x0800) but TIOCSER_TEMT as documented. Signed-off-by: Uwe Kleine-König <u.kleine-koenig@pengutronix.de> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
* drivers/tty/serial/mpc52xx_uart.c: fix typo in C commentValentin Rothberg2015-05-061-1/+1
| | | | | | | | Fix reference on PPC_MPC52xx in C comment after #endif. Signed-off-by: Valentin Rothberg <valentinrothberg@gmail.com> Reviewed-by: Peter Hurley <peter@hurleysoftware.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
* tty: constify of_device_id arrayFabian Frederick2015-03-261-1/+1
| | | | | | | | | | | of_device_id is always used as const. (See driver.of_match_table and open firmware functions) Signed-off-by: Fabian Frederick <fabf@skynet.be> Acked-by: Peter Korsgaard <peter@korsgaard.com> Acked-by: Timur Tabi <timur@tabi.org> Acked-by: Patrice Chotard <patrice.chotard@st.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
* tty: serial: drop owner assignment from platform_driversWolfram Sang2014-10-201-1/+0
| | | | | | | 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>
* serial: mpc52xx: Use default serial core x_char handlerPeter Hurley2014-09-091-17/+0
| | | | | | | | | | mpc52xx_uart_send_xchar() is _identical_ to the default serial core x_char handling behavior in uart_send_xchar(). Remove mpc52xx_uart_send_xchar(). Signed-off-by: Peter Hurley <peter@hurleysoftware.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
* serial: mpc512x: setup the PSC FIFO clock as wellGerhard Sittig2014-01-121-6/+44
| | | | | | | | | | | | | | | | | | | | | prepare and enable the FIFO clock upon PSC FIFO initialization, check for and propagage errors when enabling the PSC FIFO clock, disable and unprepare the FIFO clock upon PSC FIFO uninitialization devm_{get,put}_clk() doesn't apply here, as the SoC provides a single FIFO component which is shared among several PSC components, thus the FIFO isn't associated with a device (while the PSCs are) provide a fallback clock lookup approach in case the OF based clock lookup for the PSC FIFO fails, this allows for successful operation in the presence of an outdated device tree which lacks clock specs Cc: Greg Kroah-Hartman <gregkh@linuxfoundation.org> Cc: Jiri Slaby <jslaby@suse.cz> Cc: linux-serial@vger.kernel.org Acked-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org> Signed-off-by: Gerhard Sittig <gsi@denx.de> Signed-off-by: Anatolij Gustschin <agust@denx.de>
* serial: mpc512x: adjust for OF based clock lookupGerhard Sittig2014-01-121-5/+35
| | | | | | | | | | | | | | | after device tree based clock lookup became available, the peripheral driver need no longer construct clock names which include the PSC index, remove the "psc%d_mclk" template and unconditionally use 'mclk' acquire and release the "ipg" clock item for register access as well Cc: Greg Kroah-Hartman <gregkh@linuxfoundation.org> Cc: Jiri Slaby <jslaby@suse.cz> Cc: linux-serial@vger.kernel.org Acked-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org> Signed-off-by: Gerhard Sittig <gsi@denx.de> Signed-off-by: Anatolij Gustschin <agust@denx.de>
* serial: mpc52xx: remove reference to .set_wake()Linus Walleij2013-10-161-1/+0
| | | | | | | | | | This callback is gone and not coming back, so will not be supported later. Cc: Gerhard Sittig <gsi@denx.de> Cc: Anatolij Gustschin <agust@denx.de> Signed-off-by: Linus Walleij <linus.walleij@linaro.org> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
* serial: mpc512x: Remove casting the return value which is a void pointerJingoo Han2013-09-261-2/+2
| | | | | | | | | | Casting the return value which is a void pointer is redundant. The conversion from void pointer to any other pointer type is guaranteed by the C programming language. Signed-off-by: Jingoo Han <jg1.han@samsung.com> Acked-by: Vineet Gupta <vgupta@synopsys.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
* serial: mpc512x: cleanup clock API useGerhard Sittig2013-08-211-17/+81
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | cleanup the clock API use of the UART driver which is shared among the MPC512x and the MPC5200 platforms - get, prepare, and enable the MCLK during port allocation; disable, unprepare and put the MCLK upon port release; hold a reference to the clock over the period of use; check for and propagate enable errors - fix a buffer overflow for clock names with two digit PSC index numbers - stick with the PPC_CLOCK 'psc%d_mclk' name for clock lookup, only switch to a fixed string later after device tree based clock lookup will have become available to achieve support for MPC512x which is neutral to MPC5200, the modification was done as follows - introduce "clock alloc" and "clock release" routines in addition to the previous "clock enable/disable" routine in the psc_ops struct - make the clock allocation a part of the port request (resource allocation), and make clock release a part of the port release, such that essential resources get allocated early - just enable/disable the clock from within the .clock() callback without any allocation or preparation as the former implementation did, since this routine is called from within the startup and shutdown callbacks - all of the above remains a NOP for the MPC5200 platform (no callbacks are provided on that platform) - implementation note: the clock gets enabled upon allocation already just in case the clock is not only required for bitrate generation but for register access as well Signed-off-by: Gerhard Sittig <gsi@denx.de> Acked-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org> Signed-off-by: Anatolij Gustschin <agust@denx.de>
* serial/mpc52xx_uart: fix kernel panic when system rebootMatteo Facchinetti2013-06-171-0/+3
| | | | | | | | | | | | | | | | | | | | | | | | This bug appear when a second PSC based driver appends an interrupt routine to the FIFO controller shared interrupt (like spi-mpc512x-psc). When reboot, uart_shutdown() remove the serial console interrupt handler while spi-mpc512x-psc isr is still activate and cause the following kernel panic: The system is going down for reboot NOW!rpc (ttyPSC0) (Mon Jun 10 12:26:07 20 INIT: Sending processirq 40: nobody cared (try booting with the "irqpoll" option) CPU: 0 PID: 0 Comm: swapper Not tainted 3.10.0-rc4-next-20130607-00001-ga0bceb3-dirty #5 Call Trace: [cfff9f00] [c0007910] show_stack+0x48/0x150 (unreliable) [cfff9f40] [c005ae60] __report_bad_irq.isra.6+0x34/0xe0 [cfff9f60] [c005b194] note_interrupt+0x214/0x26c [cfff9f90] [c00590fc] handle_irq_event_percpu+0xd0/0x1bc [cfff9fd0] [c005921c] handle_irq_event+0x34/0x54 [cfff9fe0] [c005b8f4] handle_level_irq+0x90/0xf4 [cfff9ff0] [c000cb98] call_handle_irq+0x18/0x28 [c050dd60] [c000575c] do_IRQ+0xcc/0x124 [c050dd90] [c000eb04] ret_from_except+0x0/0x14 Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
* serial/mpc52xx_uart: add MPC5125 PSC supportMatteo Facchinetti2013-06-031-0/+241
| | | | | | | | | | Add MPC5125 PSC register layout structure, MPC5125 specific psc_ops function set and the compatible string. Signed-off-by: Vladimir Ermakov <vooon341@gmail.com> Signed-off-by: Matteo Facchinetti <matteo.facchinetti@sirius-es.it> Signed-off-by: Anatolij Gustschin <agust@denx.de> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
* serial/mpc52xx_uart: prepare for adding MPC5125 PSC UART supportMatteo Facchinetti2013-06-031-42/+119
| | | | | | | | | | | | | | | | | MPC5125 PSC controller has different register layout than MPC5121. To support MPC5125 PSC in this driver we have to provide further psc_ops functions for SoC specific register accesses. Add new register access functions to the psc_ops structure and provide MPC52xx and MPC512x specific implementation for them. Then replace remaining direct register accesses in the driver by appropriate psc_ops function calls. The subsequent patch can now add MPC5125 specific set of psc_ops functions. Signed-off-by: Vladimir Ermakov <vooon341@gmail.com> Signed-off-by: Matteo Facchinetti <matteo.facchinetti@sirius-es.it> Signed-off-by: Anatolij Gustschin <agust@denx.de> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
* serial: use platform_{get,set}_drvdata()Jingoo Han2013-06-031-5/+4
| | | | | | | | | | | | Use the wrapper functions for getting and setting the driver data using platform_device instead of using dev_{get,set}_drvdata() with &pdev->dev, so we can directly pass a struct platform_device. Also, unnecessary dev_set_drvdata() is removed, because the driver core clears the driver data to NULL after device_release or on probe failure. Signed-off-by: Jingoo Han <jg1.han@samsung.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
* Merge 3.10-rc3 into tty-nextGreg Kroah-Hartman2013-05-271-3/+8
|\ | | | | | | | | | | We want these fixes. Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
| * tty: serial: mpc5xxx: fix error handing in mpc52xx_uart_init()Wei Yongjun2013-05-201-3/+8
| | | | | | | | | | | | | | | | Add the missing uart_unregister_driver() and uninit before return from mpc52xx_uart_init() in the error handling case. Signed-off-by: Wei Yongjun <yongjun_wei@trendmicro.com.cn> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
* | serial: Move "uart_console" def to core header file.Sourav Poddar2013-05-201-10/+0
|/ | | | | | | | | | | | | | Move "uart_console" definition to serial core header file, so that it can be used by serial drivers. Get rid of the uart_console defintion from mpc52xx_uart driver. Cc: Santosh Shilimkar <santosh.shilimkar@ti.com> Cc: Rajendra nayak <rnayak@ti.com> Reviewed-by: Felipe Balbi <balbi@ti.com> Reviewed-by: Kevin Hilman <khilman@linaro.org> Tested-by: Kevin Hilman <khilman@linaro.org> Signed-off-by: Sourav Poddar <sourav.poddar@ti.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
* tty: serial: mpc5xxx: fix PSC clock name bugAnatolij Gustschin2013-03-121-1/+1
| | | | | | | | | | | | | | | | | | | | | | | | | | mpc512x platform clock code names PSC clocks as "pscX_mclk" but the driver tries to get "pscX_clk" clock and this results in errors like: mpc52xx-psc-uart 80011700.psc: Failed to get PSC clock entry! The problem appears when opening ttyPSC devices other than the system's serial console. Since getting and enabling the PSC clock fails, uart port startup doesn't succeed and tty flag TTY_IO_ERROR remains set causing further errors in tty ioctls, i.e. 'strace stty -F /dev/ttyPSC1' shows: open("/dev/ttyPSC1", O_RDONLY|O_NONBLOCK|O_LARGEFILE) = 3 dup2(3, 0) = 0 close(3) = 0 fcntl64(0, F_GETFL) = 0x10800 (flags O_RDONLY|O_NONBLOCK|O_LARGEFILE) fcntl64(0, F_SETFL, O_RDONLY|O_LARGEFILE) = 0 ioctl(0, TCGETS, 0xbff89038) = -1 EIO (Input/output error) Only request PSC clock names that the platform actually provides. Signed-off-by: Anatolij Gustschin <agust@denx.de> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
* TTY: switch tty_flip_buffer_pushJiri Slaby2013-01-161-2/+1
| | | | | | | | | | | | | | | | | | | | 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>
* TTY: switch tty_insert_flip_charJiri Slaby2013-01-161-3/+4
| | | | | | | | | | | | | 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. tty_insert_flip_char is the next one to proceed. This one is used all over the code, so the patch is huge. Signed-off-by: Jiri Slaby <jslaby@suse.cz> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
* tty: remove use of __devinitBill Pemberton2012-11-221-1/+1
| | | | | | | | | | | | | | | | 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>
* Merge tag 'fixes-non-critical' of ↵Linus Torvalds2012-10-021-1/+1
|\ | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc Pull non-critical ARM soc bug fixes from Olof Johansson: "These were submitted as bug fixes before v3.6 but not considered important enough to be included in it. Some of them cross over to cleanup territory as well, and aren't strictly bugfixes." * tag 'fixes-non-critical' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc: (48 commits) ARM: nomadik: remove NAND_NO_READRDY use ARM: pxa: fix return value check in pxa2xx_drv_pcmcia_probe() ARM: SAMSUNG: Add missing variable declaration in s3c64xx_spi1_set_platdata() ARM: S3C24XX: removes unnecessary semicolon ARM: S3C24xx: delete double assignment ARM: EXYNOS: fix address for EXYNOS4 MDMA1 ARM: EXYNOS: fixed SYSMMU setup definition to mate parameter name ARM: ep93xx: Move ts72xx.h out of include/mach ARM: ep93xx: use __iomem pointers for MMIO ARM: msm: Fix early debug uart mapping on some memory configs ARM: msm: io: Change the default static iomappings to be shared ARM: msm: io: Remove 7x30 iomap region from 7x00 ARM: msm: Remove call to missing FPGA init on 8660 ARM: OMAP4: wakeupgen: remove duplicate AUXCOREBOOT* read/write ARM: OMAP4: wakeupgen: Fix the typo in AUXCOREBOOT register save dma: tegra: make data used as *of_device_id.data const can: mpc5xxx_can: make data used as *of_device_id.data const macintosh/mediabay: make data used as *of_device_id.data const i2c/mpc: make data used as *of_device_id.data const mfd/da9052: make i2c_device_id array const ...
| * serial/mpc52xx_uart: add a const qualifierUwe Kleine-König2012-09-111-1/+1
| | | | | | | | | | | | | | | | | | | | | | | | This prepares *of_device_id.data becoming const. Without this change the following warning would occur: drivers/tty/serial/mpc52xx_uart.c: In function 'mpc52xx_uart_of_enumerate': drivers/tty/serial/mpc52xx_uart.c:1440:11: warning: assignment discards 'const' qualifier from pointer target type [enabled by default] Acked-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org> Acked-by: Benjamin Herrenschmidt <benh@kernel.crashing.org> Signed-off-by: Uwe Kleine-König <u.kleine-koenig@pengutronix.de>
* | tty: serial: mpc5xxx: add support for mark/space parityWolfram Sang2012-09-051-2/+6
|/ | | | | | | | | Tested on a custom MPC5200B-board using some fancy industrial protocol. Verified that MPC512x has identical bits, so should work there as well. Signed-off-by: Wolfram Sang <w.sang@pengutronix.de> Acked-by: Anatolij Gustschin <agust@denx.de> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
* mpc5200b/uart: select more tolerant uart prescaler on low baudratesFrank Benkert2012-03-081-2/+3
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | In addition to the /32 prescaler, the MPC5200B supports a second baudrate prescaler /4 to reach higher baudrates. The current calculation (introduced with commit 0d1f22e4) in the kernel preferes this low prescaler as often as possible, but with some imprecise counterparts the communication on low baudrates fails. According a support-mail from freescale the low prescaler (/4) allows just 1% tolerance in bittiming in contrast to 4% of the high prescaler (/32). The prescaler not only affects the baudrate-calculation, but also the sampling of the bits on the wire. With this patch, we use the slightly less precise, but higher tolerant prescaler calculation on low baudrates up to (and including) 115200 baud and the more precise calculation above. Tested on a custom MPC5200B board with "fsl,mpc5200b-psc-uart". Calculation Examples with prescaler (PS) 4 and 32 and divisor (DIV) on various baudrates. Real stands for the real baudrate generated and Diff for the differences between: 50 Baud PS 32 DIV 0xa122 Real 50 Diff 0.00% 75 Baud PS 32 DIV 0x6b6c Real 75 Diff 0.00% 110 Baud PS 32 DIV 0x493e Real 110 Diff 0.00% 134 Baud PS 32 DIV 0x3c20 Real 133 Diff 0.75% 150 Baud PS 32 DIV 0x35b6 Real 150 Diff 0.00% 200 Baud PS 32 DIV 0x2849 Real 199 Diff 0.50% 300 Baud PS 4 DIV 0xd6d8 Real 300 Diff 0.00% PS 32 DIV 0x1adb Real 300 Diff 0.00% 600 Baud PS 4 DIV 0x6b6c Real 600 Diff 0.00% PS 32 DIV 0x0d6e Real 599 Diff 0.17% 1200 Baud PS 4 DIV 0x35b6 Real 1200 Diff 0.00% PS 32 DIV 0x06b7 Real 1199 Diff 0.08% 1800 Baud PS 4 DIV 0x23cf Real 1799 Diff 0.06% PS 32 DIV 0x047a Real 1799 Diff 0.06% 2400 Baud PS 4 DIV 0x1adb Real 2400 Diff 0.00% PS 32 DIV 0x035b Real 2401 Diff - 0.04% 4800 Baud PS 4 DIV 0x0d6e Real 4799 Diff 0.02% PS 32 DIV 0x01ae Real 4796 Diff 0.08% 9600 Baud PS 4 DIV 0x06b7 Real 9598 Diff 0.02% PS 32 DIV 0x00d7 Real 9593 Diff 0.07% 19200 Baud PS 4 DIV 0x035b Real 19208 Diff - 0.04% PS 32 DIV 0x006b Real 19275 Diff - 0.39% 38400 Baud PS 4 DIV 0x01ae Real 38372 Diff 0.07% PS 32 DIV 0x0036 Real 38194 Diff 0.54% 57600 Baud PS 4 DIV 0x011e Real 57692 Diff - 0.16% PS 32 DIV 0x0024 Real 57291 Diff 0.54% 76800 Baud PS 4 DIV 0x00d7 Real 76744 Diff 0.07% PS 32 DIV 0x001b Real 76388 Diff 0.54% 115200 Baud PS 4 DIV 0x008f Real 115384 Diff - 0.16% PS 32 DIV 0x0012 Real 114583 Diff 0.54% 153600 Baud PS 4 DIV 0x006b Real 154205 Diff - 0.39% PS 32 DIV 0x000d Real 158653 Diff - 3.29% 230400 Baud PS 4 DIV 0x0048 Real 229166 Diff 0.54% PS 32 DIV 0x0009 Real 229166 Diff 0.54% 307200 Baud PS 4 DIV 0x0036 Real 305555 Diff 0.54% PS 32 DIV 0x0007 Real 294642 Diff 4.09% 460800 Baud PS 4 DIV 0x0024 Real 458333 Diff 0.54% PS 32 DIV 0x0005 Real 412500 Diff 10.48% 500000 Baud PS 4 DIV 0x0021 Real 500000 Diff 0.00% PS 32 DIV 0x0004 Real 515625 Diff - 3.13% 576000 Baud PS 4 DIV 0x001d Real 568965 Diff 1.22% PS 32 DIV 0x0004 Real 515625 Diff 10.48% 614400 Baud PS 4 DIV 0x001b Real 611111 Diff 0.54% PS 32 DIV 0x0003 Real 687500 Diff -11.90% 921600 Baud PS 4 DIV 0x0012 Real 916666 Diff 0.54% PS 32 DIV 0x0002 Real 1031250 Diff -11.90% 1000000 Baud PS 4 DIV 0x0011 Real 970588 Diff 2.94% PS 32 DIV 0x0002 Real 1031250 Diff - 3.13% 1152000 Baud PS 4 DIV 0x000e Real 1178571 Diff - 2.31% PS 32 DIV 0x0002 Real 1031250 Diff 10.48% 1500000 Baud PS 4 DIV 0x000b Real 1500000 Diff 0.00% PS 32 DIV 0x0001 Real 2062500 Diff -37.50% 2000000 Baud PS 4 DIV 0x0008 Real 2062500 Diff - 3.13% PS 32 DIV 0x0001 Real 2062500 Diff - 3.13% 2500000 Baud PS 4 DIV 0x0007 Real 2357142 Diff 5.71% PS 32 DIV 0x0001 Real 2062500 Diff 17.50% 3000000 Baud PS 4 DIV 0x0006 Real 2750000 Diff 8.33% PS 32 DIV 0x0001 Real 2062500 Diff 31.25% 3500000 Baud PS 4 DIV 0x0005 Real 3300000 Diff 5.71% PS 32 DIV 0x0001 Real 2062500 Diff 41.07% 4000000 Baud PS 4 DIV 0x0004 Real 4125000 Diff - 3.13% PS 32 DIV 0x0001 Real 2062500 Diff 48.44% Signed-off-by: Frank Benkert <frank.benkert@avat.de> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
* serial: Kill off NO_IRQAlan Cox2012-01-271-2/+2
| | | | | | | | | | | | We transform the offenders into a test of irq <= 0 which will be ok while the ARM people get their platform sorted. Once that is done (or in a while if they don't do it anyway) then we will change them all to !irq checks. For arch specific drivers that are already using NO_IRQ = 0 we just test against zero so we don't need to re-review them later. Signed-off-by: Alan Cox <alan@linux.intel.com> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
* TTY: irq: Remove IRQF_DISABLEDYong Zhang2011-09-231-1/+1
| | | | | | | | | | | | | | Since commit [e58aa3d2: genirq: Run irq handlers with interrupts disabled], We run all interrupt handlers with interrupts disabled and we even check and yell when an interrupt handler returns with interrupts enabled (see commit [b738a50a: genirq: Warn when handler enables interrupts]). So now this flag is a NOOP and can be removed. Signed-off-by: Yong Zhang <yong.zhang0@gmail.com> Acked-by: Tobias Klauser <tklauser@distanz.ch> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
* TTY: serial, fix includes in some driversJiri Slaby2011-09-231-0/+1
| | | | | | | | | | | | | | | linux/tty_flip.h is included in linux/serial_core.h. But this may (and will) change in the future. Then we would get build errors such as: .../tty/serial/max3107.c: In function ‘put_data_to_circ_buf’: .../tty/serial/max3107.c:149:2: error: implicit declaration of function ‘tty_insert_flip_string’ So fix all the drviers which call tty flip buffer helpers to really include linux/tty_flip.h. And also make sure that those include linux/tty.h when operating with struct tty_struct. Signed-off-by: Jiri Slaby <jslaby@suse.cz> Cc: Alan Cox <alan@linux.intel.com> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
* dt/serial: Eliminate users of of_platform_{,un}register_driverGrant Likely2011-02-281-8/+5
| | | | | | | | | Get rid of users of of_platform_driver in drivers/serial. The of_platform_{,un}register_driver functions are going away, so the users need to be converted to using the platform_bus_type directly. Signed-off-by: Grant Likely <grant.likely@secretlab.ca> Reviewed-by: Arnd Bergmann <arnd@arndb.de>
* tty: move drivers/serial/ to drivers/tty/serial/Greg Kroah-Hartman2011-01-131-0/+1527
The serial drivers are really just tty drivers, so move them to drivers/tty/ to make things a bit neater overall. This is part of the tty/serial driver movement proceedure as proposed by Arnd Bergmann and approved by everyone involved a number of months ago. Cc: Arnd Bergmann <arnd@arndb.de> Cc: Alan Cox <alan@lxorguk.ukuu.org.uk> Cc: Geert Uytterhoeven <geert@linux-m68k.org> Cc: Rogier Wolff <R.E.Wolff@bitwizard.nl> Cc: Michael H. Warfield <mhw@wittsend.com> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
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