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  1. 15 8月, 2015 5 次提交
  3. 06 8月, 2015 1 次提交
    • P
      serial: 8250_pci: fix mode after S3/S4 resume for F81504/508/512 · d3159455
      由 Peter Hung 提交于 
      Fix RS232/485 mode incorrect setting after S3/S4 resume for F81504/508/512

We had add RS232/485 RTS control with fecf27a3. But when it
resume from S3/S4, the mode register 0x40 + 0x08 * idx + 7 will
rewrite to 0x01 (RS232 mode).

This patch will modify 2 sections.

One is pci_fintek_init(), if it called when first init, it will
write mode register with 0x01. If it called from S3/S4 resume,
it's will get the relative port data and pass it to
pci_fintek_rs485_config() with NULL rs485 parameter.

The another modification is in pci_fintek_rs485_config(). It'll
re-apply old configuration when the parameter rs485 is NULL.
Signed-off-by: NPeter Hung <hpeter+linux_kernel@gmail.com>
Signed-off-by: NGreg Kroah-Hartman <gregkh@linuxfoundation.org>
      d3159455
  5. 05 8月, 2015 2 次提交
  7. 04 8月, 2015 2 次提交
  9. 24 7月, 2015 16 次提交
  11. 22 6月, 2015 1 次提交
    • P
      serial: 8250_ingenic: support for Ingenic SoC UARTs · 0cf985f4
      由 Paul Burton 提交于 
      Introduce a driver suitable for use with the UARTs present in
Ingenic SoCs such as the JZ4740 & JZ4780. These are described as being
ns16550 compatible but aren't quite - they require the setting of an
extra bit in the FCR register to enable the UART module. The serial_out
implementation is the same as that in arch/mips/jz4740/serial.c - which
will shortly be removed.
Signed-off-by: NPaul Burton <paul.burton@imgtec.com>
Cc: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Cc: Jiri Slaby <jslaby@suse.cz>
Cc: Lars-Peter Clausen <lars@metafoo.de>
Cc: linux-serial@vger.kernel.org
Cc: linux-mips@linux-mips.org
Cc: Sebastian Andrzej Siewior <bigeasy@linutronix.de>
Cc: Peter Hurley <peter@hurleysoftware.com>
Cc: Alan Cox <alan@linux.intel.com>
Cc: linux-kernel@vger.kernel.org
Cc: Matthias Brugger <matthias.bgg@gmail.com>
Cc: Ricardo Ribalda Delgado <ricardo.ribalda@gmail.com>
Cc: Tony Lindgren <tony@atomide.com>
Cc: John Crispin <blogic@openwrt.org>
Patchwork: https://patchwork.linux-mips.org/patch/10159/Signed-off-by: NRalf Baechle <ralf@linux-mips.org>
      0cf985f4
  13. 13 6月, 2015 2 次提交
  15. 10 6月, 2015 1 次提交
  17. 01 6月, 2015 5 次提交
  19. 25 5月, 2015 2 次提交
    • A
      tty: serial/8250: remove console dependency for mediatek · 7798edee
      由 Arnd Bergmann 提交于 
      If the mediatek serial port driver is built-in, but serial
console is disabled in Kconfig (e.g. when the serial driver
itself is a loadable module), we get this build error:

drivers/built-in.o: In function `early_mtk8250_setup':
undefined reference to `early_serial8250_setup'

To avoid that problem, this patch encloses the early_mtk8250_setup
function in #ifdef CONFIG_SERIAL_8250_CONSOLE, the same symbol
that guards the early_serial8250_setup function.
Signed-off-by: NArnd Bergmann <arnd@arndb.de>
Acked-by: NEddie Huang <eddie.huang@mediatek.com>
Signed-off-by: NGreg Kroah-Hartman <gregkh@linuxfoundation.org>
      7798edee
    • S
      serial: 8250_omap: provide complete custom startup & shutdown callbacks · 9e91597f
      由 Sebastian Andrzej Siewior 提交于 
      The currently in-use port->startup and port->shutdown are "okay". The
startup part for instance does the tiny omap extra part and invokes
serial8250_do_startup() for the remaining pieces. The workflow in
serial8250_do_startup() is okay except for the part where UART_RX is
read without a check if there is something to read. I tried to
workaround it in commit 0aa525d1 ("tty: serial: 8250_core: read only
RX if there is something in the FIFO") but then reverted it later in
commit ca8bb4ae ("serial: 8250: Revert "tty: serial: 8250_core: read
only RX if there is something in the FIFO"").

This is the second attempt to get it to work on older OMAPs without
breaking other chips this time
Peter Hurley suggested to pull in the few needed lines from
serial8250_do_startup() and drop everything else that is not required
including making it simpler like using just request_irq() instead the
chain handler like it is doing now.
So lets try that.

Fixes: ca8bb4ae ("serial: 8250: Revert "tty: serial: 8250_core:
       read only RX if there is something in the FIFO"")
Tested-by: NTony Lindgren <tony@atomide.com>
Signed-off-by: NSebastian Andrzej Siewior <bigeasy@linutronix.de>
Signed-off-by: NGreg Kroah-Hartman <gregkh@linuxfoundation.org>
      9e91597f
  21. 11 5月, 2015 3 次提交