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Subject[PATCH v2 00/13] OMAP Serial patches
Date
Hi guys,

here's a series of cleanup patches to the OMAP serial
driver. A later series could be made re-implementing
DMA using the DMA Engine API. Note that for RX DMA
we could be using RX Timeout IRQ as a hint that we better
use PIO instead ;-)

All patches were tested on my pandaboard, but I'd really
like to receive Tested-by on other platforms.

After this goes in, I'll probably try to get UART wakeup
working again and only after that look at DMA.

Changes since v1:

. improved commit log on patch 9/13 (formerly 10/13)
. removed patch 2/13
. added a new patch switching from spin_lock_irqsave() to spin_lock and
spin_unlock_irqrestore to spin_unlock

Retested with my pandaboard, UART continues to work:

# grep -i uart /proc/interrupts
106: 124 0 GIC OMAP UART2
# grep -i uart /proc/interrupts
106: 189 0 GIC OMAP UART2
# grep -i uart /proc/interrupts
106: 255 0 GIC OMAP UART2
# grep -i uart /proc/interrupts
106: 321 0 GIC OMAP UART2
# grep -i uart /proc/interrupts
106: 387 0 GIC OMAP UART2
# grep -i uart /proc/interrupts
106: 453 0 GIC OMAP UART2
# grep -i uart /proc/interrupts
106: 519 0 GIC OMAP UART2

cheers

ps: if anyone knows a better test for UART, let me know.

for convenience of anyone testing, patches are available on my git tree [1] on
branch uart

[1] git://git.kernel.org/pub/scm/linux/kernel/git/balbi/usb.git uart

Felipe Balbi (13):
serial: omap: define and use to_uart_omap_port()
serial: omap: define helpers for pdata function pointers
serial: omap: don't access the platform_device
serial: omap: drop DMA support
serial: add OMAP-specific defines
serial: omap: simplify IRQ handling
serial: omap: refactor receive_chars() into rdi/rlsi handlers
serial: omap: move THRE check to transmit_chars()
serial: omap: stick to put_autosuspend
serial: omap: set dev->drvdata before enabling pm_runtime
serial: omap: drop unnecessary check from remove
serial: omap: make sure to suspend device before remove
serial: omap: don't save IRQ flags on hardirq

arch/arm/mach-omap2/serial.c | 15 +-
arch/arm/plat-omap/include/plat/omap-serial.h | 12 +-
drivers/tty/serial/omap-serial.c | 713 +++++++++-----------------
include/linux/serial_reg.h | 4 +
4 files changed, 254 insertions(+), 490 deletions(-)

--
1.7.12.rc3



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