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path: root/drivers/tty/serial/8250
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2016-03-07serial: 8250: describe CONFIG_SERIAL_8250_RSAMaciej S. Szmigiero
CONFIG_SERIAL_8250_RSA has waited for a long time to have meaningful help text so let's finally describe what this option actually does. Signed-off-by: Maciej S. Szmigiero <mail@maciej.szmigiero.name> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2016-03-07tty: serial: 8250: add MOXA Smartio MUE boards supportMathieu OTHACEHE
Add support for : - CP-102E: 2 ports RS232 PCIE card - CP-102EL: 2 ports RS232 PCIE card - CP-132EL: 2 ports RS422/485 PCIE card - CP-114EL: 4 ports RS232/422/485 PCIE card - CP-104EL-A: 4 ports RS232 PCIE card - CP-168EL-A: 8 ports RS232 PCIE card - CP-118EL-A: 8 ports RS232/422/485 PCIE card - CP-118E-A: 8 ports RS422/485 PCIE card - CP-138E-A: 8 ports RS422/485 PCIE card - CP-134EL-A: 4 ports RS422/485 PCIE card - CP-116E-A (A): 8 ports RS232/422/485 PCIE card - CP-116E-A (B): 8 ports RS232/422/485 PCIE card This patch is based on information extracted from vendor mxupcie driver available on MOXA website. I was able to test it on a CP-168EL-A on PC. Signed-off-by: Mathieu OTHACEHE <m.othacehe@gmail.com> Reviewed-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2016-03-07serial: 8250: convert drivers to use up_to_u8250p()Andy Shevchenko
up_to_u8250p() casts struct uart_port * to struct uart_8250_port *. Update code to use it instead of open coded variant. Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2016-03-07serial: 8250/mediatek: fix building with SERIAL_8250=mArnd Bergmann
The Mediatek 8250 driver has a 'bool' Kconfig symbol, but that breaks when SERIAL_8250 is a loadable module: drivers/tty/built-in.o: In function `mtk8250_set_termios': :(.text+0x1bee8): undefined reference to `serial8250_do_set_termios' :(.text+0x1bf10): undefined reference to `uart_get_baud_rate' :(.text+0x1c09c): undefined reference to `uart_get_divisor' drivers/tty/built-in.o: In function `mtk8250_do_pm': :(.text+0x1c0d0): undefined reference to `serial8250_do_pm' drivers/tty/built-in.o: In function `mtk8250_probe': :(.text+0x1c2e4): undefined reference to `serial8250_register_8250_port' serial/8250/8250_mtk.c:287:242: error: data definition has no type or storage class [-Werror] serial/8250/8250_mtk.c:287:122: error: 'mtk8250_platform_driver_init' defined but not used [-Werror=unused-function] This changes the symbol to a 'tristate', so the dependency on SERIAL_8250 also works when that is set to 'm'. To actually build the driver, we also need to include <linux/module.h>. Signed-off-by: Arnd Bergmann <arnd@arndb.de> Acked-by: Matthias Brugger <matthias.bgg@gmail.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2016-03-07serial: 8250/ingenic: fix building with SERIAL_8250=mArnd Bergmann
The Ingenic 8250 driver has a 'bool' Kconfig symbol, but that breaks when SERIAL_8250 is a loadable module: drivers/tty/built-in.o: In function `ingenic_uart_probe': 8250_ingenic.c:(.text+0x1c1a0): undefined reference to `serial8250_register_8250_port' This changes the symbol to a 'tristate', plus a dependency on SERIAL_8250, which makes it work again. Unlike the other soc-specific backends, this one has no dependency on an architecture or a platform. I'm adding a dependency on MIPS || COMPILE_TEST as well here, to avoid showing the driver on architectures that are not interested in it. Signed-off-by: Arnd Bergmann <arnd@arndb.de> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2016-03-07serial: 8250/uniphier: fix modular buildArnd Bergmann
The newly added uniphier serial port driver fails to build as a loadable module when the base 8250 driver is built-in and its console support enabled: ERROR: "early_serial8250_setup" [drivers/tty/serial/8250/8250_uniphier.ko] undefined! This changes the driver to only provide the early console support if it is built-in itself as well. Signed-off-by: Arnd Bergmann <arnd@arndb.de> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2016-03-07Revert "drivers/tty/serial: make 8250/8250_ingenic.c explicitly non-modular"Arnd Bergmann
This reverts commit cafe1ac64023 ("drivers/tty: make serial 8250_ingenic.c explicitly non-modular"), which attempted to remove dead code but did not have the desired effect when the main 8250 driver was a loadable module itself. This would normally result in a link error, but as the entire drivers/tty/serial/8250/ directory is only entered when CONFIG_SERIAL_8250 is set, we never notice that the driver does not get built in this configuration. Signed-off-by: Arnd Bergmann <arnd@arndb.de> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2016-03-07Revert "drivers/tty/serial: make 8250/8250_mtk.c explicitly non-modular"Arnd Bergmann
This reverts commit d72d391c126e ("drivers/tty/serial: make 8250/8250_mtk.c explicitly non-modular"), which intended to remove dead code but did not have the desired effect when the main 8250 driver was a module itself. This would normally result in a link error, but as the entire drivers/tty/serial/8250/ directory is only entered when CONFIG_SERIAL_8250 is set, we never notice that the driver does not get built in this configuration. Signed-off-by: Arnd Bergmann <arnd@arndb.de> Acked-by: Matthias Brugger <matthias.bgg@gmail.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2016-03-07serial: 8250: Add hardware dependency to RT288X optionJean Delvare
Kconfig option SERIAL_8250_RT288X seems to be only relevant on MIPS platforms, so do not present it on other architectures, unless build-testing. Signed-off-by: Jean Delvare <jdelvare@suse.de> Cc: Mans Rullgard <mans@mansr.com> Cc: Jiri Slaby <jslaby@suse.com> Acked-by: John Crispin <blogic@openwrt.org> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2016-03-07serial: 8250_pci: all known Braswell ports are 1 channelAndy Shevchenko
There is no need to have channel offset defined since all BayTrail and Braswell ports are 1 channel. Remove unneeded definition. While here, remove comment which has no value. Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2016-03-07serial: 8250_pci: convert to pcim_*() APIAndy Shevchenko
The managed API provides a better approach to help with acquiring and releasing resources. Besides that error handling becomes simpler. Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2016-03-07serial: 8250_dw: remove leftover definitionsAndy Shevchenko
The clocks are managed through clk-fractional-divider.c module, and thus CLK framework takes care about it. Remove letfovers from this driver. Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2016-03-07serial: 8250_dw: remove redundant 'else' keywordAndy Shevchenko
When the main branch contains return statement the 'else' keyword is not needed. Remove it here. Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2016-03-07tty: serial: Use GFP_ATOMIC instead of GFP_KERNEL in serial8250_em485_init()Matwey V. Kornilov
serial8250_em485_init() is supposed to be protected with p->port.lock spinlock. This may lead to issues when kmalloc sleeps, so it is better to use GFP_ATOMIC in this spinlocked context. Fixes: e490c9144cfa ("tty: Add software emulated RS485 support for 8250") Reported-by: Ильяс Гасанов <torso.nafi@gmail.com> Signed-off-by: Matwey V. Kornilov <matwey@sai.msu.ru> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2016-03-07tty: serial: 8250: Cleanup p->em485 in serial8250_unregister_portMatwey V. Kornilov
Formally, currently there is no memory leak, but if serial8250_ports[line] is reused with other 8250 driver, then em485 will be already activated and it will cause issues. Fixes: e490c9144cfa ("tty: Add software emulated RS485 support for 8250") Signed-off-by: Matwey V. Kornilov <matwey@sai.msu.ru> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2016-02-14serial: bcm2835: fix unsigned int issue with irqMartin Sperl
Fixes error condition check when requesting the irq, that would not trigger because of uart_port.irq being defined as unsigned int. Reported by: Dan Carpenter <dan.carpenter@oracle.com> Signed-off-by: Martin Sperl <kernel@martin.sperl.org> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2016-02-14serial: 8250_early: Add earlycon support for TegraJon Hunter
Declare an OF early console for Tegra so that the early console device can be specified via the "stdout-path" property in device-tree. Signed-off-by: Jon Hunter <jonathanh@nvidia.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2016-02-148250: mediatek: mark PM functions as __maybe_unusedArnd Bergmann
The mtk8250_runtime_suspend function is not used when runtime PM is disabled, so we get a warning about an unused function: drivers/tty/serial/8250/8250_mtk.c:119:12: error: 'mtk8250_runtime_suspend' defined but not used [-Werror=unused-function] static int mtk8250_runtime_suspend(struct device *dev) This marks all the PM functions as __maybe_unused to avoid the warning, and removes the #ifdef around the PM_SLEEP functions for consistency. Signed-off-by: Arnd Bergmann <arnd@arndb.de> Acked-by: Matthias Brugger <matthias.bgg@gmail.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2016-02-14Merge 4.5-rc4 into tty-nextGreg Kroah-Hartman
We want the fixes in here, and this resolves a merge error in tty_io.c Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2016-02-07Revert "8250: uniphier: allow modular build with 8250 console"Greg Kroah-Hartman
This reverts commit d56edd7ed0ed46a8043ee3040ededbd190818ccf, it shouldn't have been applied, it was fixed properly with commit 71f50c6d9a2276f3ec85384bffe2aee1962f4669 ("of: drop symbols declared by _OF_DECLARE() from modules") Reported-by: Masahiro Yamada <yamada.masahiro@socionext.com> Cc: Arnd Bergmann <arnd@arndb.de> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2016-02-06tty: serial: 8250: Add generic port init macroAnton Wuerfel
This patch removes redundant 8250 port initialization macros and replaces them by a single generic base-macro, which is specialized as needed. Signed-off-by: Anton Würfel <anton.wuerfel@fau.de> Signed-off-by: Phillip Raffeck <phillip.raffeck@fau.de> Suggested-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com> Reviewed-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com> Cc: linux-kernel@i4.cs.fau.de Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2016-02-06tty: serial: 8250: Fix indentation warningsAnton Wuerfel
Checkpatch complains about incorrect indentation of switch/case statements. This patch fixes the corresponding warnings. Additionally some indentation is changed to match the correct format specified in the Linux Kernel Coding Style. Signed-off-by: Anton Würfel <anton.wuerfel@fau.de> Signed-off-by: Phillip Raffeck <phillip.raffeck@fau.de> Reviewed-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com> Cc: linux-kernel@i4.cs.fau.de Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2016-02-06tty: serial: 8250: Merge duplicate conditionsAnton Wuerfel
This patch refactors a switch case statement by merging an if condition in the default case into an identical condition right after the switch statement. This comes with a slight change in behaviour: If pci_netmos_9900_numports returns 0, an additional warning is printed. Signed-off-by: Anton Würfel <anton.wuerfel@fau.de> Signed-off-by: Phillip Raffeck <phillip.raffeck@fau.de> Suggested-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com> Reviewed-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com> Cc: linux-kernel@i4.cs.fau.de Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2016-02-06tty: serial: 8250: Correct conversion specifiersAnton Wuerfel
This patch fixes compiler warnings about wrong conversion specifiers used in a debug output in 8250_pnp.c. The precise warning is: drivers/tty/serial/8250/8250_pnp.c: In function ‘serial_pnp_probe’: include/linux/dynamic_debug.h:64:16: warning: format ‘%x’ expects argument of [...] drivers/tty/serial/8250/8250_pnp.c:467:2: note: in expansion of macro ‘dev_dbg’ dev_dbg(&dev->dev, ^ include/linux/dynamic_debug.h:64:16: warning: format ‘%lx’ expects argument of [...] drivers/tty/serial/8250/8250_pnp.c:467:2: note: in expansion of macro ‘dev_dbg’ dev_dbg(&dev->dev, ^ Those warnings never got triggered, because the command was nested in an #ifdef, which is removed by a patch of this series. Signed-off-by: Anton Würfel <anton.wuerfel@fau.de> Signed-off-by: Phillip Raffeck <phillip.raffeck@fau.de> Cc: linux-kernel@i4.cs.fau.de Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2016-02-06tty: serial: 8250: Remove SERIAL_DEBUG_PNP macroPhillip Raffeck
This patch removes the macro SERIAL_DEBUG_PNP, which is used to enable debugging at compile time. As SERIAL_DEBUG_PNP is an orphan, the corresponding #ifdef is removed. To keep the ability to enable debugging at compile time, the call to printk(KERN_DEBUG ...) is replaced by a corresponding call to dev_dbg(), which is configurable via CONFIG_DYNAMIC_DEBUG. Signed-off-by: Phillip Raffeck <phillip.raffeck@fau.de> Signed-off-by: Anton Würfel <anton.wuerfel@fau.de> Reviewed-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com> Cc: linux-kernel@i4.cs.fau.de Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2016-02-06tty: serial: 8250: Suitably replace printkPhillip Raffeck
This patch replaces printk by the corresponding variant of dev_* in order to fix checkpatch warnings. If no suitable device pointer is present, the corresponding pr_* variant is used. Signed-off-by: Phillip Raffeck <phillip.raffeck@fau.de> Signed-off-by: Anton Würfel <anton.wuerfel@fau.de> Reviewed-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com> Cc: linux-kernel@i4.cs.fau.de Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2016-02-06tty: serial: 8250: Fix multi-line stringsAnton Wuerfel
Merged user-visible multi-line strings into a single line according to the Linux Kernel Coding Style, which allows user-visible strings to exceed the maximum line length of 80 characters. The main reason for this is to facilitate grepping for these strings. However, some strings were ignored in this patch, because the use of format specifiers breaks the ability to grep anyway. Signed-off-by: Anton Würfel <anton.wuerfel@fau.de> Signed-off-by: Phillip Raffeck <phillip.raffeck@fau.de> Reviewed-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com> Cc: linux-kernel@i4.cs.fau.de Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2016-02-06tty: serial: 8250: Add parentheses to macroAnton Wuerfel
This patch fixes a checkpatch warning caused by missing parentheses in the definition of a macro. Furthermore redundant parentheses are removed in an assignment. Signed-off-by: Anton Würfel <anton.wuerfel@fau.de> Signed-off-by: Phillip Raffeck <phillip.raffeck@fau.de> Reviewed-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com> Cc: linux-kernel@i4.cs.fau.de Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2016-02-06tty: serial: 8250: Fix line continuation warningAnton Wuerfel
Fixed checkpatch warning about an unnecessary line continuation in a multi-line variable assignment. Signed-off-by: Anton Würfel <anton.wuerfel@fau.de> Signed-off-by: Phillip Raffeck <phillip.raffeck@fau.de> Reviewed-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com> Reviewed-by: Peter Hurley <peter@hurleysoftware.com> Cc: linux-kernel@i4.cs.fau.de Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2016-02-06tty: serial: 8250: Move EXPORT_SYMBOL to functionAnton Wuerfel
This patch moves EXPORT_SYMBOL macros directly after the definition of the corresponding symbol to remove checkpatch warnings. Signed-off-by: Anton Würfel <anton.wuerfel@fau.de> Signed-off-by: Phillip Raffeck <phillip.raffeck@fau.de> Reviewed-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com> Reviewed-by: Peter Hurley <peter@hurleysoftware.com> Cc: linux-kernel@i4.cs.fau.de Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2016-02-06tty: serial: 8250: Remove else after returnAnton Wuerfel
This patch fixes checkpatch warnings about unnecessary else blocks after return statements. Signed-off-by: Anton Würfel <anton.wuerfel@fau.de> Signed-off-by: Phillip Raffeck <phillip.raffeck@fau.de> Reviewed-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com> Cc: linux-kernel@i4.cs.fau.de Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2016-02-06tty: serial: 8250: Fix multiline comment styleAnton Wuerfel
Checkpatch outputs some warnings about incorrect comment style, which is fixed by this patch. Signed-off-by: Anton Würfel <anton.wuerfel@fau.de> Signed-off-by: Phillip Raffeck <phillip.raffeck@fau.de> Reviewed-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com> Cc: linux-kernel@i4.cs.fau.de Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2016-02-06tty: serial: 8250: Fix braces after structAnton Wuerfel
This patch fixes a checkpatch warning by moving an opening curly brace to its correct position. Signed-off-by: Anton Würfel <anton.wuerfel@fau.de> Signed-off-by: Phillip Raffeck <phillip.raffeck@fau.de> Reviewed-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com> Reviewed-by: Peter Hurley <peter@hurleysoftware.com> Cc: linux-kernel@i4.cs.fau.de Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2016-02-06tty: serial: 8250: Replace spaces with tabsAnton Wuerfel
Indentation is changed to match the correct format of using tabs instead of spaces wherever possible. Signed-off-by: Anton Würfel <anton.wuerfel@fau.de> Signed-off-by: Phillip Raffeck <phillip.raffeck@fau.de> Reviewed-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com> Reviewed-by: Peter Hurley <peter@hurleysoftware.com> Cc: linux-kernel@i4.cs.fau.de Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2016-02-06tty: serial: 8250: Fix whitespace errorsAnton Wuerfel
This patch fixes whitespace errors reported by checkpatch to increase readability. Main focus is on missing spaces after commas in function headers and macros (like foo,bar edited to foo, bar). Signed-off-by: Anton Würfel <anton.wuerfel@fau.de> Signed-off-by: Phillip Raffeck <phillip.raffeck@fau.de> Reviewed-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com> Cc: linux-kernel@i4.cs.fau.de Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2016-02-06serial: bcm2835: add driver for bcm2835-aux-uartMartin Sperl
The bcm2835 SOC contains an auxiliary uart, which is very close to the ns16550 with some differences. The big difference is that the uart HW is not using an internal divider of 16 but 8, which results in an effictive baud-rate being twice the requested baud-rate. This driver handles this device correctly and handles the difference in the HW divider by scaling up the clock by a factor of 2. The approach to write a separate (wrapper) driver instead of using a multiplying clock and "ns16550" as compatibility in the device-tree has been recommended by Stephen Warren. Signed-off-by: Martin Sperl <kernel@martin.sperl.org> Acked-by: Eric Anholt <eric@anholt.net> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2016-02-06serial: 8250: of: Enable suspend/resume for 8250_of driverWang Dongsheng
Suspend/resume functions should work for 8250_of driver. Signed-off-by: Wang Dongsheng <dongsheng.wang@nxp.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2016-02-06tty: Add support for PCIe WCH382 2S multi-IO cardJeremy McNicoll
WCH382 2S board is a PCIe card with 2 DB9 COM ports detected as Serial controller: Device 1c00:3253 (rev 10) (prog-if 05 [16850]) Signed-off-by: Jeremy McNicoll <jmcnicol@redhat.com> Cc: stable <stable@vger.kernel.org> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2016-02-068250: uniphier: allow modular build with 8250 consoleArnd Bergmann
The recently added uniphier 8250 port driver supports early console probing, and it supports being built as a module, but the combination of the two fails to link: ERROR: "early_serial8250_setup" [drivers/tty/serial/8250/8250_uniphier.ko] undefined! Given that earlycon support in a loadable module makes no sense, making that code conditional on 'MODULE' is a correct solution. Signed-off-by: Arnd Bergmann <arnd@arndb.de> Fixes: b8d20e06eaad ("serial: 8250_uniphier: add earlycon support") Acked-by: Masahiro Yamada <yamada.masahiro@socionext.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2016-02-06drivers/tty: make serial 8250_ingenic.c explicitly non-modularPaul Gortmaker
The Kconfig currently controlling compilation of this code is: drivers/tty/serial/8250/Kconfig:config SERIAL_8250_INGENIC drivers/tty/serial/8250/Kconfig: bool "Support for Ingenic SoC serial ports" ...meaning that it currently is not being built as a module by anyone. Lets remove the modular code that is essentially orphaned, so that when reading the driver there is no doubt it is builtin-only. We explicitly disallow a driver unbind, since that doesn't have a sensible use case anyway, and it allows us to drop the ".remove" code for non-modular drivers. Since module_platform_driver() uses the same init level priority as builtin_platform_driver() the init ordering remains unchanged with this commit. Also note that MODULE_DEVICE_TABLE is a no-op for non-modular code. We also delete the MODULE_LICENSE tag etc. since all that information was (or is now) contained at the top of the file in the comments. Cc: Greg Kroah-Hartman <gregkh@linuxfoundation.org> Cc: Jiri Slaby <jslaby@suse.com> Cc: Matt Redfearn <matt.redfearn@imgtec.com> Cc: Masahiro Yamada <yamada.masahiro@socionext.com> Cc: Paul Burton <paul.burton@imgtec.com> Cc: Peter Hurley <peter@hurleysoftware.com> Cc: linux-serial@vger.kernel.org Signed-off-by: Paul Gortmaker <paul.gortmaker@windriver.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2016-02-06serial/8250_pci: simplify Pericom handlingJan Beulich
Considering that pci_pericom_setup(()'s only difference to pci_default_setup() is the setting of the uartclk field, and taking into account that this field already gets taken care of by having the base_baud field filled in the pci_boards[] entries, there's no need for both the function and the quirks table entry. Signed-off-by: Jan Beulich <jbeulich@suse.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2016-02-06serial: 8250_pci: use to_pci_dev()Geliang Tang
Use to_pci_dev() instead of open-coding it. Signed-off-by: Geliang Tang <geliangtang@163.com> Reviewed-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2016-02-068250: use callbacks to access UART_DLL/UART_DLMSebastian Frias
Some UART HW has a single register combining UART_DLL/UART_DLM (this was probably forgotten in the change that introduced the callbacks, commit b32b19b8ffc05cbd3bf91c65e205f6a912ca15d9) Fixes: b32b19b8ffc0 ("[SERIAL] 8250: set divisor register correctly ...") Signed-off-by: Sebastian Frias <sf84@laposte.net> Reviewed-by: Peter Hurley <peter@hurleysoftware.com> Cc: stable <stable@vger.kernel.org> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2016-02-06serial: 8250_dw: Do not use readl/writel before checking port iotypeNoam Camus
Direct call to readl()/writel() is checked against iotype and in case of UPIO_MEM32BE we use ioread32be()/iowrite32be() instead of them. Signed-off-by: Noam Camus <noamc@ezchip.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2016-02-06serial: 8250_dw: Add support for big-endian MMIO accessesNoam Camus
Add support for UPIO_MEM32BE in addition to UPIO_MEM32. For big endian we use 2 new accessors similar to little endian, called dw8250_serial_out32be() and dw8250_serial_in32be(). Signed-off-by: Noam Camus <noamc@ezchip.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2016-02-06serial: 8250_dw: Avoid serial_outx code duplicate with new dw8250_check_lcr()Noam Camus
With the help of Heikki we take common code that makes sure LCR write wasn't ignored and put it in new function called dw8250_check_lcr(). This function serves 3 serial_out routines: dw8250_serial_out(), dw8250_serial_out32(), and dw8250_serial_outq(). This patch only brings better code reuse. Signed-off-by: Noam Camus <noamc@ezchip.com> Cc: Heikki Krogerus <heikki.krogerus@linux.intel.com> Cc: Andy Shevchenko <andriy.shevchenko@linux.intel.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2016-02-06tty: 8250_omap: Use software emulated RS485 direction controlMatwey V. Kornilov
Use software emulated RS485 direction control to provide RS485 API existed in omap_serial driver. Note that 8250_omap issues interrupt on shift register empty which is single prerequesite for using software emulated RS485. Signed-off-by: Matwey V. Kornilov <matwey@sai.msu.ru> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2016-02-06tty: Add software emulated RS485 support for 8250Matwey V. Kornilov
Implementation of software emulation of RS485 direction handling is based on omap_serial driver. Before and after transmission RTS is set to the appropriate value. Note that before calling serial8250_em485_init() the caller has to ensure that UART will interrupt when shift register empty. Otherwise, emultaion cannot be used. Both serial8250_em485_init() and serial8250_em485_destroy() are idempotent functions. Signed-off-by: Matwey V. Kornilov <matwey@sai.msu.ru> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2016-02-06tty: Move serial8250_stop_rx() in front of serial8250_start_tx()Matwey V. Kornilov
Software RS485 emultaion is to be added in the following commit. serial8250_start_tx() will need to refer serial8250_stop_rx(). Move serial8250_stop_rx() in front of serial8250_start_tx() in order to avoid function forward declaration. Signed-off-by: Matwey V. Kornilov <matwey@sai.msu.ru> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2016-02-06TTY: 8250_pnp, make checks boolJiri Slaby
Since check_name and check_resources return only 0/1, switch them to bool/true/false. Signed-off-by: Jiri Slaby <jslaby@suse.cz> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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