[PATCH 0/2] tty: serial: OMAP: work around broken driver, IP block
From: paul@pwsan.com (Paul Walmsley)
Date: 2012-01-21 07:27:37
Also in:
linux-omap, linux-serial
[ This series is targeted for merging during v3.3-rc ]
On v3.3-rc1, the OMAP serial console doesn't behave properly when
power management is enabled (the default with omap2plus_defconfig).
This seems to be due to a combination of a silicon bug in the UART IP
block and broken FIFO settings in the OMAP serial driver.
This patch series attempts to work around these problems. The workarounds
are not perfect; see the patch descriptions for more details.
Tested on OMAP3530 BeagleBoard. This series will need to be tested on
OMAP2 and OMAP4 before it is ready to merge.
- Paul
---
Paul Walmsley (2):
tty: serial: OMAP: ensure FIFO levels are set correctly in non-DMA mode
tty: serial: OMAP: transmit FIFO threshold interrupts don't wake the chip
arch/arm/plat-omap/include/plat/omap-serial.h | 1
drivers/tty/serial/omap-serial.c | 86 ++++++++++++++++++++++++-
2 files changed, 82 insertions(+), 5 deletions(-)