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In HW UART mode the TxBD[READY] is not cleared by H/W (RISC engine) when
the user send characters to Tx buffer of QE UART. So, these characters
stay on the QE forever, never go to UART line.
Signed-off-by: Dave Liu <daveliu@freescale.com>
Signed-off-by: Kumar Gala <galak@kernel.crashing.org>
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Found by Daniel Marjamäki using cppcheck
Signed-off-by: Alan Cox <alan@lxorguk.ukuu.org.uk>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
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git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip
This merges branches irq/genirq, irq/sparseirq-v4, timers/hpet-percpu
and x86/uv.
The sparseirq branch is just preliminary groundwork: no sparse IRQs are
actually implemented by this tree anymore - just the new APIs are added
while keeping the old way intact as well (the new APIs map 1:1 to
irq_desc[]). The 'real' sparse IRQ support will then be a relatively
small patch ontop of this - with a v2.6.29 merge target.
* 'genirq-v28-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip: (178 commits)
genirq: improve include files
intr_remapping: fix typo
io_apic: make irq_mis_count available on 64-bit too
genirq: fix name space collisions of nr_irqs in arch/*
genirq: fix name space collision of nr_irqs in autoprobe.c
genirq: use iterators for irq_desc loops
proc: fixup irq iterator
genirq: add reverse iterator for irq_desc
x86: move ack_bad_irq() to irq.c
x86: unify show_interrupts() and proc helpers
x86: cleanup show_interrupts
genirq: cleanup the sparseirq modifications
genirq: remove artifacts from sparseirq removal
genirq: revert dynarray
genirq: remove irq_to_desc_alloc
genirq: remove sparse irq code
genirq: use inline function for irq_to_desc
genirq: consolidate nr_irqs and for_each_irq_desc()
x86: remove sparse irq from Kconfig
genirq: define nr_irqs for architectures with GENERIC_HARDIRQS=n
...
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Signed-off-by: Yinghai Lu <yhlu.kernel@gmail.com>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
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We're currently passing NULL, and really shouldn't be.
Signed-off-by: Becky Bruce <becky.bruce@freescale.com>
Acked-By: Timur Tabi <timur@freescale.com>
Signed-off-by: Kumar Gala <galak@kernel.crashing.org>
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The below is the patch to replace blindly all possible places,
including Jack's fixes.
Signed-off-by: Takashi Iwai <tiwai@suse.de>
(Reviewed and checked rather than blindly added)
Signed-off-by: Alan Cox <alan@redhat.com>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
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Some drivers are using too generic "serial" name for driver_name, this
might cause issues, like this:
Freescale QUICC Engine UART device driver
proc_dir_entry 'serial' already registered
Call Trace:
[cf82de50] [c0007f7c] show_stack+0x4c/0x1ac (unreliable)
[cf82de90] [c00b03fc] proc_register+0xfc/0x1ac
[cf82dec0] [c00b05c8] create_proc_entry+0x60/0xac
[cf82dee0] [c00b23dc] proc_tty_register_driver+0x60/0x98
[cf82def0] [c016dbd8] tty_register_driver+0x1b4/0x228
[cf82df20] [c0184d70] uart_register_driver+0x144/0x194
[cf82df40] [c030a378] ucc_uart_init+0x2c/0x94
[cf82df50] [c02f21a0] kernel_init+0x98/0x27c
[cf82dff0] [c000fa74] kernel_thread+0x44/0x60
^^ The board is using ucc_uart.c and 8250.c, both registered as
"serial".
This patch fixes two drivers that are using "serial" for driver_name and
not "ttyS" for dev_name. Drivers that are using "ttyS" for dev_name, will
conflict anyway, so we don't bother with these.
Signed-off-by: Anton Vorontsov <avorontsov@ru.mvista.com>
Acked-by: Alan Cox <alan@redhat.com>
Acked-By: Timur Tabi <timur@freescale.com>
Acked-by: Maciej W. Rozycki <macro@linux-mips.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
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__FUNCTION__ is gcc-specific, use __func__
Signed-off-by: Harvey Harrison <harvey.harrison@gmail.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
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- get rid of `model = "UCC"' in the ucc nodes
It isn't used anywhere, so remove it. If we'll ever need something
like this, we'll use compatible property instead.
- replace last occurrences of device-id with cell-index.
Drivers are modified for backward compatibility's sake.
Signed-off-by: Anton Vorontsov <avorontsov@ru.mvista.com>
Acked-by: Timur Tabi <timur@freescale.com>
Signed-off-by: Kumar Gala <galak@kernel.crashing.org>
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Add file ucc_uart.c, a serial device driver for the Freescale QUICCEngine.
Update the Kconfig and Makefile accordingly.
Signed-off-by: Timur Tabi <timur@freescale.com>
Signed-off-by: Kumar Gala <galak@kernel.crashing.org>
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