Messages in this thread | | | Subject | [PATCH 0/6] rework quirks for the "kt" serial port | From | Dan Williams <> | Date | Fri, 06 Apr 2012 11:44:22 -0700 |
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The kt serial port intermittently reports unreliable data in its IIR register and needs to reset fifos to stay in sync with firmware when the device is reset.
The IIR fixes that went into 3.3 were not complete so patch 3 replaces them with an explicit way to turn on UART_BUG_THRE (i.e. the "I don't trust my iir" flag).
A new fix for resetting the fifos on device reset is patch 5. Alan asked to make this a new quirk rather than add more workarounds to the core (patch 4).
Patch 6 is an untested RFC / RFT from anyone that has a serial suspend/resume use case with an 'init' quirk that has resources that need de-allocation at 'exit'.
-- Dan
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Dan Williams (5): Revert "serial/8250_pci: init-quirk msi support for kt serial controller" Revert "serial/8250_pci: setup-quirk workaround for the kt serial controller" serial/8250_pci: add a "force background timer" flag and use it for the "kt" serial port tegra, serial8250: add ->handle_break() uart_port op serial/8250_pci: fix suspend/resume vs init/exit quirks
Sudhakar Mamillapalli (1): serial/8250_pci: Clear FIFOs for Intel ME Serial Over Lan device on BI
arch/arm/mach-tegra/board-harmony.c | 1 + arch/arm/mach-tegra/board-paz00.c | 2 + arch/arm/mach-tegra/board-seaboard.c | 1 + arch/arm/mach-tegra/board-trimslice.c | 1 + arch/arm/mach-tegra/devices.c | 18 ++++++++++ arch/arm/mach-tegra/devices.h | 2 + drivers/tty/serial/8250/8250.c | 56 ++++++++++-------------------- drivers/tty/serial/8250/8250.h | 2 + drivers/tty/serial/8250/8250_pci.c | 61 +++++++++++++++++++++++++-------- include/linux/serial_8250.h | 1 + include/linux/serial_core.h | 7 +++- 11 files changed, 99 insertions(+), 53 deletions(-)
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