Commit Graph

141 Commits

Author SHA1 Message Date
Russell King
9c9585e0e9 Merge branches 'aaci', 'mmci-dma', 'pl' and 'pl011' into drivers 2011-03-17 11:04:51 +00:00
Russell King
aa25afad2c ARM: amba: make probe() functions take const id tables
Make Primecell driver probe functions take a const pointer to their
ID tables.  Drivers should never modify their ID tables in their
probe handler.

Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2011-02-23 16:24:14 +00:00
Russell King
7c289385b8 ALSA: AACI: allow writes to MAINCR to take effect
The AACI TRM requires the MAINCR enable bit to be held zero for two
bitclk cycles plus three apb_pclk cycles.  Use a delay of 1us to
ensure this.

Ensure that writes to MAINCR to change the addressed codec only happen
when required, and that they take effect in a similar manner to the
above, otherwise we seem to occasionally have stuck slot busy bits.

Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2011-02-07 15:15:26 +00:00
Russell King
5d350cba48 ALSA: AACI: make fifo variables more explanitory
Improve commenting and change fifo variable names to reflect their
meanings.

Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2011-01-26 20:24:52 +00:00
Russell King
ea51d0b164 ALSA: AACI: no need to call snd_pcm_period_elapsed() for each period
There is no need to call snd_pcm_period_elapsed() each time a period
elapses - we can call it after we're done once loading/unloading the
FIFO with data.  ALSA works out how many periods have elapsed by
reading the current pointers.

Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2011-01-26 20:24:12 +00:00
Russell King
c0dea82c3c ALSA: AACI: use snd_pcm_lib_period_bytes()
Use the helper rather than open-coding this.

Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2011-01-26 20:24:11 +00:00
Russell King
f006d8fc53 ALSA: AACI: clean up AACI announcement printk
Make the AACI announcement printk say which primecell part number
has been found.  Display the revision as an unsigned decimal, and
display only the first 8 hex digits of the base address unless it's
larger.

Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2011-01-26 20:24:10 +00:00
Russell King
58e8a4741b ALSA: AACI: fix channel mask selection
When double-rate mode was selected, we weren't setting the additional
two channel mask bits to allow double-rate to work.  Rearrange the
hw_params code to allow the correct channel mask to be selected.

Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2011-01-26 20:24:10 +00:00
Russell King
e831d80b45 ALSA: AACI: fix number of channels for record
AC'97 codecs only support two channels for recording, so we shouldn't
advertize that there are up to six channels available.  Limit the
selection of 4 and 6 channel audio to playback only.

As this adds additional SNDRV_PCM_STREAM_PLAYBACK conditionals, we can
combine some resulting in the elimination of __aaci_pcm_open() entirely,
and making the code easier to read.

Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2011-01-25 21:20:23 +00:00
Russell King
b60fb519d7 ALSA: AACI: fix multiple IRQ claiming
Claiming the IRQ each time a playback or capture interface is opened
is wasteful; the second copy of the registered handler is identical to
the first and just wastes resources.  Track the number of opens and
only register the handler when necessary.

Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2011-01-25 21:20:22 +00:00
Russell King
250c7a61c3 ALSA: AACI: fix timeout duration
Relying on the access time of peripherals is unreliable - it depends
on the speed of the CPU and the bus.  On Versatile Express, these
timeouts were expiring, causing the driver to fail.

Add udelay(1) to ensure that they don't expire early, and adjust
timeouts to give a reasonable margin over the response times.

Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2011-01-25 21:18:05 +00:00
Russell King
69058cd6d1 ALSA: AACI: fix timeout condition checking
Ensure that a timeout coincident with the condition being waited for
results in success rather than failure.  This helps avoid timeout
conditions being inappropriately flagged.

Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2011-01-25 21:18:05 +00:00
Takashi Iwai
872d65f674 Merge branch 'fix/misc' into for-linus 2010-04-16 10:03:42 +02:00
Philby John
b68b58fd6a ALSA: aaci - Fix alignment faults on ARM Cortex introduced by commit 29a4f2d3
The commit 29a4f2d3 used writel() at offset 0x26 which is
half-word aligned causing unaligned exceptions on a
Cortex-A8. The original patch solved the "aaci-pl041 fpga:04:
ac97 read back fail" issue on a soft reset. Reading from any
arbitrary aaci register seems to solve this issue.

Signed-off-by: Philby John <pjohn@mvista.com>
Acked-by: Russell King <rmk+kernel@arm.linux.org.uk>
Signed-off-by: Takashi Iwai <tiwai@suse.de>
2010-04-13 09:46:55 +02:00
Tejun Heo
5a0e3ad6af include cleanup: Update gfp.h and slab.h includes to prepare for breaking implicit slab.h inclusion from percpu.h
percpu.h is included by sched.h and module.h and thus ends up being
included when building most .c files.  percpu.h includes slab.h which
in turn includes gfp.h making everything defined by the two files
universally available and complicating inclusion dependencies.

percpu.h -> slab.h dependency is about to be removed.  Prepare for
this change by updating users of gfp and slab facilities include those
headers directly instead of assuming availability.  As this conversion
needs to touch large number of source files, the following script is
used as the basis of conversion.

  http://userweb.kernel.org/~tj/misc/slabh-sweep.py

The script does the followings.

* Scan files for gfp and slab usages and update includes such that
  only the necessary includes are there.  ie. if only gfp is used,
  gfp.h, if slab is used, slab.h.

* When the script inserts a new include, it looks at the include
  blocks and try to put the new include such that its order conforms
  to its surrounding.  It's put in the include block which contains
  core kernel includes, in the same order that the rest are ordered -
  alphabetical, Christmas tree, rev-Xmas-tree or at the end if there
  doesn't seem to be any matching order.

* If the script can't find a place to put a new include (mostly
  because the file doesn't have fitting include block), it prints out
  an error message indicating which .h file needs to be added to the
  file.

The conversion was done in the following steps.

1. The initial automatic conversion of all .c files updated slightly
   over 4000 files, deleting around 700 includes and adding ~480 gfp.h
   and ~3000 slab.h inclusions.  The script emitted errors for ~400
   files.

2. Each error was manually checked.  Some didn't need the inclusion,
   some needed manual addition while adding it to implementation .h or
   embedding .c file was more appropriate for others.  This step added
   inclusions to around 150 files.

3. The script was run again and the output was compared to the edits
   from #2 to make sure no file was left behind.

4. Several build tests were done and a couple of problems were fixed.
   e.g. lib/decompress_*.c used malloc/free() wrappers around slab
   APIs requiring slab.h to be added manually.

5. The script was run on all .h files but without automatically
   editing them as sprinkling gfp.h and slab.h inclusions around .h
   files could easily lead to inclusion dependency hell.  Most gfp.h
   inclusion directives were ignored as stuff from gfp.h was usually
   wildly available and often used in preprocessor macros.  Each
   slab.h inclusion directive was examined and added manually as
   necessary.

6. percpu.h was updated not to include slab.h.

7. Build test were done on the following configurations and failures
   were fixed.  CONFIG_GCOV_KERNEL was turned off for all tests (as my
   distributed build env didn't work with gcov compiles) and a few
   more options had to be turned off depending on archs to make things
   build (like ipr on powerpc/64 which failed due to missing writeq).

   * x86 and x86_64 UP and SMP allmodconfig and a custom test config.
   * powerpc and powerpc64 SMP allmodconfig
   * sparc and sparc64 SMP allmodconfig
   * ia64 SMP allmodconfig
   * s390 SMP allmodconfig
   * alpha SMP allmodconfig
   * um on x86_64 SMP allmodconfig

8. percpu.h modifications were reverted so that it could be applied as
   a separate patch and serve as bisection point.

Given the fact that I had only a couple of failures from tests on step
6, I'm fairly confident about the coverage of this conversion patch.
If there is a breakage, it's likely to be something in one of the arch
headers which should be easily discoverable easily on most builds of
the specific arch.

Signed-off-by: Tejun Heo <tj@kernel.org>
Guess-its-ok-by: Christoph Lameter <cl@linux-foundation.org>
Cc: Ingo Molnar <mingo@redhat.com>
Cc: Lee Schermerhorn <Lee.Schermerhorn@hp.com>
2010-03-30 22:02:32 +09:00
Mark Brown
f9b44121b3 Merge commit 'v2.6.34-rc2' into for-2.6.34 2010-03-22 11:17:26 +00:00
Daniel Mack
8727b909bb ASoC: pxa-pcm-lib: initialize DMA channel to -1
This fixes a warning ("pxa_free_dma: trying to free channel 0 which is
already freed") when a device was opened but the hw_params() call
failed.

Signed-off-by: Daniel Mack <daniel@caiaq.de>
Acked-by: Liam Girdwood <lrg@slimlogic.co.uk>
Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
2010-03-19 15:28:04 +00:00
Eric Miao
846c864cac [ARM] pxa: remove now unnecessary pxa_gpio_mode() calls in ac97
Now most (if not all) PXA platforms have been switched to the new MFP
API, it's rather safe to remove these unnecessary pxa_gpio_mode() calls
in pxa2xx-ac97-lib.c now.

Cc: Dmitry Eremin-Solenikov <dbaryshkov@gmail.com>
Cc: Mark Brown <broonie@opensource.wolfsonmicro.com>
Signed-off-by: Eric Miao <eric.y.miao@gmail.com>
2010-03-02 07:40:48 +08:00
Eric Miao
fb1bf8cd13 [ARM] pxa: introduce processor specific pxa27x_assert_ac97reset()
This is really pxa27x specific and should be kept in pxa27x.c. With this
newly introduced function, the original set_resetgpio_mode() is deprecated.

Cc: Dmitry Eremin-Solenikov <dbaryshkov@gmail.com>
Cc: Mark Brown <broonie@opensource.wolfsonmicro.com>
Signed-off-by: Eric Miao <eric.y.miao@gmail.com>
2010-03-02 07:40:47 +08:00
Eric Miao
e1aed7ca55 [ARM] pxa: remove the unnecessary restoring of MFP registers
MFP registers are saved and restored by the mfp sys_device before all
other platform devices, and it is unnecessary here.

Cc: Dmitry Eremin-Solenikov <dbaryshkov@gmail.com>
Cc: Mark Brown <broonie@opensource.wolfsonmicro.com>
Signed-off-by: Eric Miao <eric.y.miao@gmail.com>
2010-03-02 07:40:47 +08:00
Peter Huewe
903b0eb39e ALSA: sound/arm: Fix build failure caused by missing struct aaci definition
This patch fixes a build failure introduced by the patch
  ALSA: AACI: factor common hw_params logic into aaci_pcm_hw_params [1]
by adding/moving the aaci struct to the right position.

The patch mentioned above merged common source parts into one function,
but unfortunately left out the aaci struct and consequently caused a
build failure e.g. for arm versatile_config [2]

References:
[1] http://git.kernel.org/?p=linux/kernel/git/torvalds/linux-2.6.git;a=commitdiff;h=d3aee7996c30f928bbbbfd0994148e35d2e83084
[2] http://kisskb.ellerman.id.au/kisskb/buildresult/1893605/

Patch against Linus' tree.

Signed-off-by: Peter Huewe <peterhuewe@gmx.de>
Signed-off-by: Takashi Iwai <tiwai@suse.de>
2009-12-26 10:16:07 +01:00
Russell King
d6a89fefa5 ALSA: AACI: switch to per-pcm locking
We can use finer-grained locking, which makes things easier when
we gain DMA support.

Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
Signed-off-by: Takashi Iwai <tiwai@suse.de>
2009-12-18 20:31:13 +01:00
Russell King
a08d56583f ALSA: AACI: add double-rate support
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
Signed-off-by: Takashi Iwai <tiwai@suse.de>
2009-12-18 20:31:01 +01:00
Russell King
d3aee7996c ALSA: AACI: factor common hw_params logic into aaci_pcm_hw_params
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
Signed-off-by: Takashi Iwai <tiwai@suse.de>
2009-12-18 20:29:38 +01:00
Russell King
4e30b69108 ALSA: AACI: cleanup aaci_pcm_hw_params
Since the recording and playback paths are now the same, eliminate
the needless conditionals.

Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
Signed-off-by: Takashi Iwai <tiwai@suse.de>
2009-12-18 20:29:09 +01:00
Russell King
6ca867c827 ALSA: AACI: simplify codec rate information
There's no need for a specific rule; ALSA's generic AC'97 support
calculates the necessary rate constraint information itself, and
we can use this directly.

Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
Signed-off-by: Takashi Iwai <tiwai@suse.de>
2009-12-18 20:28:43 +01:00
Takashi Iwai
d49464318a ALSA: aaci - Fix a typo
Fixed a typo of the max buffer size specified for buffer allocation
changed in the commit d679732223.

Signed-off-by: Takashi Iwai <tiwai@suse.de>
2009-12-18 20:25:30 +01:00
Alexey Dobriyan
471452104b const: constify remaining dev_pm_ops
Signed-off-by: Alexey Dobriyan <adobriyan@gmail.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2009-12-15 08:53:25 -08:00
Takashi Iwai
57648cd52b Merge branch 'topic/misc' into for-linus 2009-12-04 16:22:37 +01:00
Takashi Iwai
7959832483 Merge branch 'topic/core-change' into for-linus 2009-12-04 16:22:32 +01:00
Takashi Iwai
cf5bd652c3 ALSA: aaci - Clean up duplicate code
Now snd_ac97_pcm_open() is called with the exactly same arguments
for both playback and capture directions.  Remove the unneeded check.

Signed-off-by: Takashi Iwai <tiwai@suse.de>
2009-12-01 16:36:56 +01:00
Takashi Iwai
ef47bf386e Merge branch 'fix/misc' into topic/misc 2009-12-01 08:36:05 +01:00
Russell King
8ee763b9c8 ALSA: AACI: fix recording bug
pcm->r[1].slots is the double rate slot information, not the
capture information.  For capture, 'pcm' will already be the
capture ac97 pcm structure.

Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
Cc: <stable@kernel.org>
Signed-off-by: Takashi Iwai <tiwai@suse.de>
2009-11-30 14:50:55 +01:00
Russell King
4acd57c3de ALSA: AACI: fix AC97 multiple-open bug
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
Cc: <stable@kernel.org>
Signed-off-by: Takashi Iwai <tiwai@suse.de>
2009-11-30 14:50:53 +01:00
Takashi Iwai
d679732223 ALSA: Remove old DMA-mmap code from arm/devdma.c
The call of dma_mmap_coherent() is done in the PCM core now.

Signed-off-by: Takashi Iwai <tiwai@suse.de>
2009-11-27 10:15:24 +01:00
Russell King
88cdca9c73 ALSA: AACI cleanup
Fix the buffer size calculation to use the size which ALSA is expecting.

Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
Signed-off-by: Takashi Iwai <tiwai@suse.de>
2009-11-23 09:44:10 +01:00
Philby John
29a4f2d31c ALSA: aaci: ARM1176 aaci-pl041 AC97 register read timeout
After a reboot on an ARM1176 which amounts to a softreset, it has been
noted that the ALSA driver does not get registered and the probe fails
with the error "aaci-pl041 fpga:04: ac97 read back fail". In the process
of reading from a register the SL1TxBusy bit is set indicating that the
transceiver is busy and remains so until the default timeout occurs.
Set the Power down register 0x26 to an arbitrary value as specified in
the PL041 manual (page: 3-18) so that AACISL1TX/AACISL2TX registers take
their default state.

Signed-off-by: Philby John <pjohn@in.mvista.com>
Signed-off-by: Takashi Iwai <tiwai@suse.de>
2009-10-13 15:59:55 +02:00
Russell King
28f9f19db9 Merge branch 'devel' of git://git.kernel.org/pub/scm/linux/kernel/git/ycmiao/pxa-linux-2.6 into devel 2009-09-21 16:02:30 +01:00
Mike Rapoport
2ba9fd0d15 [ARM] pxa: update pxa2xx-ac97.c to use 'struct dev_pm_ops'
Signed-off-by: Mike Rapoport <mike@compulab.co.il>
Signed-off-by: Eric Miao <eric.y.miao@gmail.com>
2009-09-10 19:15:37 +08:00
Robert Schwebel
367da1527a ASoC: fix pxa2xx-ac97.c breakage
Today's linux-next fails to build with

  sound/arm/pxa2xx-ac97.c: In function 'pxa2xx_ac97_probe':
  sound/arm/pxa2xx-ac97.c:211: error: 'pxa2xx_audio_ops_t' has no member named 'codec_data'
  make[2]: *** [sound/arm/pxa2xx-ac97.o] Error 1

It looks like commit e2365bf313 has
introduced this; patch below.

Signed-off-by: Robert Schwebel <r.schwebel@pengutronix.de>
Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
2009-09-04 20:19:56 +01:00
Marek Vasut
e2365bf313 ASoC: Pass correct platform data from pxa2xx-ac97
Signed-off-by: Marek Vasut <marek.vasut@gmail.com>
Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
2009-08-23 18:18:01 +01:00
Mark Brown
f8bae4caaa ALSA: Restore support for DMAless DAIs on PXA
Used for applications such as direct bluetooth connections on
smartphones which don't go via the CPU. This used to be supported
before the refactoring to share code but this check was removed
during that move.

Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
2009-08-19 20:30:14 +01:00
Marek Vasut
4ac0478f2a ALSA: Allow passing platform_data for pxa2xx-ac97
This patch adds support for passing platform data to ac97 bus devices
from PXA2xx-AC97 driver..

Signed-off-by: Marek Vasut <marek.vasut@gmail.com>
Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
2009-08-13 22:19:37 +01:00
Daniel Mack
b7d4de7ff0 ASoC: Fix NULL pointer dereference in __pxa2xx_pcm_hw_free
Check for rtd->params->drcmr != NULL before accessing it.

Signed-off-by: Daniel Mack <daniel@caiaq.de>
Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
2009-07-09 10:36:19 +01:00
Linus Walleij
dc890c2dcd [ARM] 5544/1: Trust PrimeCell resource sizes
I found the PrimeCell/AMBA Bus drivers distrusting the resource
passed in as part of the struct amba_device abstraction. This
patch removes all hard coded resource sizes found in the PrimeCell
drivers and move the responsibility of this definition back to
the platform/board device definition, which already exist and
appear to be correct for all in-tree users of these drivers.
We do this using the resource_size() inline function which was
also replicated in the only driver using the resource size, so
that has been changed too. The KMI_SIZE was left in kmi.h in case
someone likes it. Test-compiled against Versatile and Integrator
defconfigs, seems to work but I don't posess these boards and
cannot test them.

Signed-off-by: Linus Walleij <linus.walleij@stericsson.com>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2009-06-11 15:36:56 +01:00
Alessandro Rubini
03fbdb15c1 [ARM] 5519/1: amba probe: pass "struct amba_id *" instead of void *
The second argument of the probe method points to the amba_id
structure, so it's better passed with the correct type. None of the
current in-tree drivers uses the pointer, so they have only been
checked for a clean compile.

Change suggested by Russell King.

Signed-off-by: Alessandro Rubini <rubini@unipv.it>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2009-05-20 23:26:51 +01:00
Mike Rapoport
1ffafeb556 pxa2xx-ac97: fix reset gpio mode setting
Signed-off-by: Mike Rapoport <mike@compulab.co.il>
Acked-by: Eric Miao <eric.miao@marvell.com>
Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
2009-05-11 19:01:51 +01:00
Mark Brown
eae17754ab [ARM] pxa: merge AC97 platform data structures
Currently there are two possible platform datas for the PXA AC97 driver:
one supported by the generic AC97 driver only which provides callbacks
to allow board-specific configuration at stream startup and teardown,
and another for pxa2xx-ac97-lib which allows configuration of the reset
GPIO for PXA2xx CPUs.

Obviously this won't actually work when using the generic AC97 driver
since the drivers will attempt to parse the platform data in both
formats. Fix this by merging the two structures.

Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
Acked-by: Robert Jarzmik <robert.jarzmik@free.fr>
Cc: Marek Vasut <marek.vasut@gmail.com>
Signed-off-by: Eric Miao <eric.miao@marvell.com>
2009-04-15 10:54:06 +08:00
Takashi Iwai
b114701c0e Merge branch 'topic/asoc' into for-linus 2009-04-06 03:47:20 +02:00
Luotao Fu
057de50c0d pxa2xx-ac97: fix displaying GSR after reset timeout
the variable gsr_bit is set in isr. It is however set to 0 and interrupts are
disabled prior to reset. Hence it doesn't make a lot of sense to show the
content of gsr_bit in case of a reset timeout.

Signed-off-by: Luotao Fu <l.fu@pengutronix.de>
Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
2009-04-02 16:34:15 +01:00