linux-stable.git/drivers/tty/serial/Kconfig, branch linux-3.16.y Linux kernel stable tree tty/serial: at91: use mctrl_gpio helpers 2014-05-28T19:49:44+00:00 Richard Genoud richard.genoud@gmail.com 2014-05-13T18:20:44+00:00 e0b0baadb7a4509bdcd5ba37d0be61e2c4bb0d48 On sam9x5, dedicated CTS (and RTS) pins are unusable together with the LCDC, the EMAC, or the MMC because they share the same line. Moreover, the USART controller doesn't handle DTR/DSR/DCD/RI signals, so we have to control them via GPIO. This patch permits to use GPIOs to control the CTS/RTS/DTR/DSR/DCD/RI signals. Signed-off-by: Richard Genoud <richard.genoud@gmail.com> Acked-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org> Acked-by: Nicolas Ferre <nicolas.ferre@atmel.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org> 
On sam9x5, dedicated CTS (and RTS) pins are unusable together with the
LCDC, the EMAC, or the MMC because they share the same line.

Moreover, the USART controller doesn't handle DTR/DSR/DCD/RI signals,
so we have to control them via GPIO.

This patch permits to use GPIOs to control the CTS/RTS/DTR/DSR/DCD/RI
signals.

Signed-off-by: Richard Genoud <richard.genoud@gmail.com>
Acked-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Acked-by: Nicolas Ferre <nicolas.ferre@atmel.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
tty/serial: Add GPIOLIB helpers for controlling modem lines 2014-05-28T19:49:14+00:00 Richard Genoud richard.genoud@gmail.com 2014-05-13T18:20:43+00:00 84130aace83989c1dba073ed98dad721d2060258 This patch add some helpers to control modem lines (CTS/RTS/DSR...) via GPIO. This will be useful for many boards which have a serial controller that only handle CTS/RTS pins (or even just RX/TX). Signed-off-by: Richard Genoud <richard.genoud@gmail.com> Acked-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org> Tested-by: Yegor Yefremov <yegorslists@googlemail.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org> 
This patch add some helpers to control modem lines (CTS/RTS/DSR...) via
GPIO.
This will be useful for many boards which have a serial controller that
only handle CTS/RTS pins (or even just RX/TX).

Signed-off-by: Richard Genoud <richard.genoud@gmail.com>
Acked-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Tested-by: Yegor Yefremov <yegorslists@googlemail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
serial: SERIAL_FSL_LPUART should depend on HAS_DMA 2014-05-28T19:24:31+00:00 Geert Uytterhoeven geert@linux-m68k.org 2014-05-06T12:41:19+00:00 ac62391496cf1ace051c4daebb00f7435320f11f If NO_DMA=y: drivers/built-in.o: In function `lpuart_dma_rx_free': fsl_lpuart.c:(.text+0x7da28): undefined reference to `dma_unmap_single' drivers/built-in.o: In function `lpuart_dma_tx_free': fsl_lpuart.c:(.text+0x7da60): undefined reference to `dma_unmap_single' drivers/built-in.o: In function `lpuart_dma_rx': fsl_lpuart.c:(.text+0x7dab8): undefined reference to `dma_sync_single_for_cpu' drivers/built-in.o: In function `lpuart_dma_tx': fsl_lpuart.c:(.text+0x7db7e): undefined reference to `dma_sync_single_for_cpu' drivers/built-in.o: In function `lpuart_copy_rx_to_tty': fsl_lpuart.c:(.text+0x7dcd4): undefined reference to `dma_sync_single_for_cpu' make[3]: *** [vmlinux] Error 1 Signed-off-by: Geert Uytterhoeven <geert@linux-m68k.org> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org> 
If NO_DMA=y:

drivers/built-in.o: In function `lpuart_dma_rx_free':
fsl_lpuart.c:(.text+0x7da28): undefined reference to `dma_unmap_single'
drivers/built-in.o: In function `lpuart_dma_tx_free':
fsl_lpuart.c:(.text+0x7da60): undefined reference to `dma_unmap_single'
drivers/built-in.o: In function `lpuart_dma_rx':
fsl_lpuart.c:(.text+0x7dab8): undefined reference to `dma_sync_single_for_cpu'
drivers/built-in.o: In function `lpuart_dma_tx':
fsl_lpuart.c:(.text+0x7db7e): undefined reference to `dma_sync_single_for_cpu'
drivers/built-in.o: In function `lpuart_copy_rx_to_tty':
fsl_lpuart.c:(.text+0x7dcd4): undefined reference to `dma_sync_single_for_cpu'
make[3]: *** [vmlinux] Error 1

Signed-off-by: Geert Uytterhoeven <geert@linux-m68k.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
serial: add missing SERIAL_CORE dependencies 2014-05-28T19:22:42+00:00 Arnd Bergmann arnd@arndb.de 2014-04-29T20:26:22+00:00 717e1cb22f01ddeaaeddc126fed43f975c920d97 Two new drivers have been added since 3.14, the MEN 16z135 uart, and the ARM semihosting console. Both are missing an explicit 'select SERIAL_CORE', which can leads build errors when no other driver selects the core, as found during ARM randconfig testing. In case of the ARM semihosting console, we also have to select SERIAL_CORE_CONSOLE. This adds the missing 'select' statements. Signed-off-by: Arnd Bergmann <arnd@arndb.de> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org> 
Two new drivers have been added since 3.14, the MEN 16z135 uart, and
the ARM semihosting console. Both are missing an explicit 'select
SERIAL_CORE', which can leads build errors when no other driver
selects the core, as found during ARM randconfig testing.
In case of the ARM semihosting console, we also have to select
SERIAL_CORE_CONSOLE.

This adds the missing 'select' statements.

Signed-off-by: Arnd Bergmann <arnd@arndb.de>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
serial: pch_uart: Fix Kconfig dependencies 2014-05-27T19:31:20+00:00 Jean Delvare jdelvare@suse.de 2014-05-16T08:48:50+00:00 0667934567a9d05fad5bdf2ca0546b04a1e64dfe The pch_uart driver is for a companion chip to the Intel Atom E600 series processors. These are 32-bit x86 processors so the driver is only needed on X86_32. Add COMPILE_TEST as an alternative, so that the driver can still be build-tested elsewhere. Signed-off-by: Jean Delvare <jdelvare@suse.de> Cc: Jiri Slaby <jslaby@suse.cz> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org> 
The pch_uart driver is for a companion chip to the Intel Atom E600
series processors. These are 32-bit x86 processors so the driver is
only needed on X86_32. Add COMPILE_TEST as an alternative, so that the
driver can still be build-tested elsewhere.

Signed-off-by: Jean Delvare <jdelvare@suse.de>
Cc: Jiri Slaby <jslaby@suse.cz>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
serial: sc16is7xx: depend on I2C 2014-04-25T20:22:41+00:00 Jon Ringle jringle@gridpoint.com 2014-04-25T19:53:09+00:00 d3bdba934239c91ec0b7c41b19c059e4c05dc138 Signed-off-by: Jon Ringle <jringle@gridpoint.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org> 
Signed-off-by: Jon Ringle <jringle@gridpoint.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
serial: sc16is7xx 2014-04-25T17:08:48+00:00 Jon Ringle jringle@gridpoint.com 2014-04-25T00:56:06+00:00 dfeae619d781dee61666d5551b93ba3be755a86b The SC16IS7xx is a slave I2C-bus/SPI interface to a single-channel high performance UART. The SC16IS7xx's internal register set is backward-compatible with the widely used and widely popular 16C450. The SC16IS7xx also provides additional advanced features such as auto hardware and software flow control, automatic RS-485 support, and software reset. Signed-off-by: Jon Ringle <jringle@gridpoint.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org> 
The SC16IS7xx is a slave I2C-bus/SPI interface to a single-channel
high performance UART. The SC16IS7xx's internal register set is
backward-compatible with the widely used and widely popular 16C450.

The SC16IS7xx also provides additional advanced features such as
auto hardware and software flow control, automatic RS-485 support, and
software reset.

Signed-off-by: Jon Ringle <jringle@gridpoint.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
tty/serial: add arm/arm64 semihosting earlycon 2014-04-24T23:32:27+00:00 Rob Herring robh@kernel.org 2014-04-18T22:19:58+00:00 d50d7269ebcb438afa346cdffce0f4e2a1b9e831 Add earlycon support for the arm/arm64 semihosting debug serial interface. This allows enabling a debug console when early_params are processed. This is based on the arm64 earlyprintk smh support and is intended to replace it. Signed-off-by: Rob Herring <robh@kernel.org> Cc: Jiri Slaby <jslaby@suse.cz> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org> 
Add earlycon support for the arm/arm64 semihosting debug serial
interface. This allows enabling a debug console when early_params are
processed. This is based on the arm64 earlyprintk smh support and is
intended to replace it.

Signed-off-by: Rob Herring <robh@kernel.org>
Cc: Jiri Slaby <jslaby@suse.cz>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
tty/serial: pl011: add generic earlycon support 2014-04-24T23:32:27+00:00 Rob Herring robh@kernel.org 2014-04-18T22:19:57+00:00 0d3c673e7881e691991b2a4745bd4f149603baa2 Add earlycon support for the pl011 serial port. This allows enabling the pl011 for console when early_params are processed. This is based on the arm64 earlyprintk support and is intended to replace it. Signed-off-by: Rob Herring <robh@kernel.org> Cc: Russell King <linux@arm.linux.org.uk> Cc: Jiri Slaby <jslaby@suse.cz> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org> 
Add earlycon support for the pl011 serial port. This allows enabling
the pl011 for console when early_params are processed. This is based
on the arm64 earlyprintk support and is intended to replace it.

Signed-off-by: Rob Herring <robh@kernel.org>
Cc: Russell King <linux@arm.linux.org.uk>
Cc: Jiri Slaby <jslaby@suse.cz>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
tty/serial: add generic serial earlycon 2014-04-24T23:32:27+00:00 Rob Herring robh@kernel.org 2014-04-18T22:19:55+00:00 9aac5887595b765b6f64b2af08b785e82e095b57 This introduces generic earlycon infrastructure for serial devices based on the 8250 earlycon. This allows for supporting earlycon option with other serial devices. The earlycon output is enabled at the time early_params are processed. Only architectures that have fixmap support or have functional ioremap when early_params are processed are supported. This is the same restriction that the 8250 driver had. Signed-off-by: Rob Herring <robh@kernel.org> Cc: Jiri Slaby <jslaby@suse.cz> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org> 
This introduces generic earlycon infrastructure for serial devices
based on the 8250 earlycon. This allows for supporting earlycon option
with other serial devices. The earlycon output is enabled at the time
early_params are processed.

Only architectures that have fixmap support or have functional ioremap
when early_params are processed are supported. This is the same
restriction that the 8250 driver had.

Signed-off-by: Rob Herring <robh@kernel.org>
Cc: Jiri Slaby <jslaby@suse.cz>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>