kernel/linux.git/drivers/tty/serial/Kconfig, branch v4.19.77

tty: serial: drop ATH79 specific SoC symbols

2018-05-14T11:51:12+00:00

QCA MIPS support is being converted to pure OF. As part of this we are dropping the SOC_AR* symbols. Additionally the SERIAL_AR933X style tty is also found on a few SoCs newer that the AR933x. This patch changes the dependency to ATH79, thus fixing the 2 issues described above. Signed-off-by: John Crispin Signed-off-by: Greg Kroah-Hartman

serial: Remove depends on HAS_DMA in case of platform dependency

2018-04-23T08:14:57+00:00

Remove dependencies on HAS_DMA where a Kconfig symbol depends on another symbol that implies HAS_DMA, and, optionally, on "|| COMPILE_TEST". In most cases this other symbol is an architecture or platform specific symbol, or PCI. Generic symbols and drivers without platform dependencies keep their dependencies on HAS_DMA, to prevent compiling subsystems or drivers that cannot work anyway. This simplifies the dependencies, and allows to improve compile-testing. Signed-off-by: Geert Uytterhoeven Reviewed-by: Mark Brown Acked-by: Robin Murphy Acked-by: Greg Kroah-Hartman Signed-off-by: Greg Kroah-Hartman

serial: sh-sci: Add support for dynamic instances

2018-04-23T08:08:18+00:00

On DT platforms, the sh-sci driver requires the presence of "serialN" aliases in DT, from which instance IDs are derived. If a DT alias is missing, the drivers fails to probe the corresponding serial port. This becomes cumbersome when considering DT overlays, as currently there is no upstream support for dynamically updating the /aliases node in DT. Furthermore, even in the presence of such support, hardcoded instance IDs in independent overlays are prone to conflicts. Hence add support for dynamic instance IDs, to be used in the absence of a DT alias. This makes serial ports behave similar to I2C and SPI buses, which already support dynamic instances. Ports in use are tracked using a simple bitmask of type unsigned long, which is sufficient to handle all current hardware (max. 18 ports). The maximum number of serial ports is still fixed, and configurable through Kconfig. Range validation is done through both Kconfig and a compile-time check. Due to the fixed maximum number of serial ports, dynamic and static instances share the same ID space. Static instances added later are rejected when conflicting with dynamic instances registered earlier. Signed-off-by: Geert Uytterhoeven Signed-off-by: Greg Kroah-Hartman

Merge tag 'tty-4.17-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/tty

2018-04-05T01:43:49+00:00

Pull tty/serial driver updates from Greg KH: "Here is the big set of tty and serial driver patches for 4.17-rc1 Not all that big really, most are just small fixes and additions to existing drivers. There's a bunch of work on the imx serial driver recently for some reason, and a new embedded serial driver added as well. Full details are in the shortlog. All of these have been in the linux-next tree for a while with no reported issues" * tag 'tty-4.17-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/tty: (66 commits) serial: expose buf_overrun count through proc interface serial: mvebu-uart: fix tx lost characters tty: serial: msm_geni_serial: Fix return value check in qcom_geni_serial_probe() tty: serial: msm_geni_serial: Add serial driver support for GENI based QUP 8250-men-mcb: add support for 16z025 and 16z057 powerpc: Mark the variable earlycon_acpi_spcr_enable maybe_unused serial: stm32: fix initialization of RS485 mode ARM: dts: STi: Remove "console=ttyASN" from bootargs for STi boards vt: change SGR 21 to follow the standards serdev: Fix typo in serdev_device_alloc ARM: dts: STi: Fix aliases property name for STi boards tty: st-asc: Update tty alias serial: stm32: add support for RS485 hardware control mode dt-bindings: serial: stm32: add RS485 optional properties selftests: add devpts selftests devpts: comment devpts_mntget() devpts: resolve devpts bind-mounts devpts: hoist out check for DEVPTS_SUPER_MAGIC serial: 8250: Add Nuvoton NPCM UART serial: mxs-auart: disable clks of Alphascale ASM9260 ...

serial: remove tile uart driver

2018-03-26T13:57:22+00:00

The tile architecture is getting removed, and this driver is useless without it. Acked-by: Greg Kroah-Hartman Signed-off-by: Arnd Bergmann

serial: remove m32r_sio driver

2018-03-26T13:57:21+00:00

The m32r architecture is getting removed, so we don't need this any more. Acked-by: Nicolas Pitre Acked-by: Greg Kroah-Hartman Signed-off-by: Arnd Bergmann

serial: remove blackfin drivers

2018-03-26T13:57:19+00:00

The blackfin architecture is getting removed, so both the bfin_uart and bfin_sport_uart can be removed as well. Acked-by: Greg Kroah-Hartman Acked-by: Aaron Wu Signed-off-by: Arnd Bergmann

serial: remove cris/etrax uart drivers

2018-03-26T13:57:17+00:00

The cris architecture is getting removed, so we don't need the uart driver any more. Acked-by: Greg Kroah-Hartman Acked-by: Jesper Nilsson Signed-off-by: Arnd Bergmann

tty: serial: msm_geni_serial: Add serial driver support for GENI based QUP

2018-03-20T08:13:15+00:00

This driver supports GENI based UART Controller in the Qualcomm SOCs. The Qualcomm Generic Interface (GENI) is a programmable module supporting a wide range of serial interfaces including UART. This driver support console operations using FIFO mode of transfer. Signed-off-by: Girish Mahadevan Signed-off-by: Karthikeyan Ramasubramanian Signed-off-by: Sagar Dharia Signed-off-by: Doug Anderson Signed-off-by: Greg Kroah-Hartman

tty: serial: sh-sci: Add default for number of ports for compile-testing

2017-12-18T09:28:31+00:00

When compile-testing an allmodconfig kernel for a platform without sh-sci serial ports, the SERIAL_SH_SCI_NR_UARTS symbol of type "int" doesn't get assigned a numerical default value, but an empty string, leading to a build failure: .config:3814:warning: symbol value '' invalid for SERIAL_SH_SCI_NR_UARTS ... make[3]: *** [silentoldconfig] Error 1 Fix this by explicitly providing a default value of 2, like before. Reported-by: kbuild test robot Fixes: f6731485a51978ca ("tty: serial: sh-sci: Hide number of ports config question") Signed-off-by: Geert Uytterhoeven Signed-off-by: Greg Kroah-Hartman