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  1. Feb 16, 2012
  3. Feb 15, 2012
    • Grant Likely's avatar
      irq_domain/powerpc: eliminate irq_map; use irq_alloc_desc() instead · 4bbdd45a
      Grant Likely authored 
      

This patch drops the powerpc-specific irq_map table and replaces it with
directly using the irq_alloc_desc()/irq_free_desc() interfaces for allocating
and freeing irq_desc structures.

This patch is a preparation step for generalizing the powerpc-specific virq
infrastructure to become irq_domains.

As part of this change, the irq_big_lock is changed to a mutex from a raw
spinlock.  There is no longer any need to use a spin lock since the irq_desc
allocation code is now responsible for the critical section of finding
an unused range of irq numbers.

The radix lookup table is also changed to store the irq_data pointer instead
of the irq_map entry since the irq_map is removed.  This should end up being
functionally equivalent since only allocated irq_descs are ever added to the
radix tree.

v5: - Really don't ever allocate virq 0.  The previous version could still
      do it if hint == 0
    - Respect irq_virq_count setting for NOMAP.  Some NOMAP domains cannot
      use virq values above irq_virq_count.
    - Use numa_node_id() when allocating irq_descs.  Ideally the API should
      obtain that value from the caller, but that touches a lot of call sites
      so will be deferred to a follow-on patch.
    - Fix irq_find_mapping() to include irq numbers lower than
      NUM_ISA_INTERRUPTS.  With the switch to irq_alloc_desc*(), the lowest
      possible allocated irq is now returned by arch_probe_nr_irqs().
v4: - Fix incorrect access to irq_data structure in debugfs code
    - Don't ever allocate virq 0

Signed-off-by: default avatarGrant Likely <grant.likely@secretlab.ca>
Cc: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Cc: Thomas Gleixner <tglx@linutronix.de>
Cc: Milton Miller <miltonm@bga.com>
Tested-by: default avatarOlof Johansson <olof@lixom.net>
      4bbdd45a
    • Grant Likely's avatar
      irq_domain/powerpc: Use common irq_domain structure instead of irq_host · bae1d8f1
      Grant Likely authored 
      

This patch drops the powerpc-specific irq_host structures and uses the common
irq_domain strucutres defined in linux/irqdomain.h.  It also fixes all
the users to use the new structure names.

Renaming irq_host to irq_domain has been discussed for a long time, and this
patch is a step in the process of generalizing the powerpc virq code to be
usable by all architecture.

An astute reader will notice that this patch actually removes the irq_host
structure instead of renaming it.  This is because the irq_domain structure
already exists in include/linux/irqdomain.h and has the needed data members.

Signed-off-by: default avatarGrant Likely <grant.likely@secretlab.ca>
Cc: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Cc: Thomas Gleixner <tglx@linutronix.de>
Cc: Milton Miller <miltonm@bga.com>
Tested-by: default avatarOlof Johansson <olof@lixom.net>
      bae1d8f1
    • Grant Likely's avatar
      irq_domain: convert microblaze from irq_host to irq_domain · 644bd954
      Grant Likely authored 
      

Trivial change, microblaze doesn't use irq remapping yet.

Signed-off-by: default avatarGrant Likely <grant.likely@secretlab.ca>
Cc: Michal Simek <monstr@monstr.eu>
Cc: Thomas Gleixner <tglx@linutronix.de>
      644bd954
    • Grant Likely's avatar
      irq_domain: Make irq_domain structure match powerpc's irq_host · 7bb69bad
      Grant Likely authored 
      

Part of the series to unify the irq remapping mechanisms in the
kernel.  A follow up patch will copy the powerpc implementation into
kernel/irq/irqdomain.c, which will be a lot easier if the structures
are identical.

Where they differ, I've chose to use the powerpc names since there is
a lot more code using those names.

Signed-off-by: default avatarGrant Likely <grant.likely@secretlab.ca>
Cc: Rob Herring <rob.herring@calxeda.com>
Cc: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Cc: Thomas Gleixner <tglx@linutronix.de>
Cc: Milton Miller <miltonm@bga.com>
Tested-by: default avatarOlof Johansson <olof@lixom.net>
      7bb69bad
    • Grant Likely's avatar
      irq_domain: Be less verbose · e1964c50
      Grant Likely authored 
      

irq_domain printk's too much.  Drop some output.

Signed-off-by: default avatarGrant Likely <grant.likely@secretlab.ca>
Cc: Rob Herring <rob.herring@calxeda.com>
Cc: Thomas Gleixner <tglx@linutronix.de>
Tested-by: default avatarOlof Johansson <olof@lixom.net>
      e1964c50
    • Grant Likely's avatar
      irq_domain: add documentation and MAINTAINERS entry. · 7ab3a837
      Grant Likely authored 
      

Documentation for irq_domain library which will be created in subsequent
patches.

v4: editorial changes

Signed-off-by: default avatarGrant Likely <grant.likely@secretlab.ca>
Reviewed-by: default avatarRandy Dunlap <rdunlap@xenotime.net>
Cc: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Cc: Thomas Gleixner <tglx@linutronix.de>
Cc: Rob Herring <rob.herring@calxeda.com>
Cc: Milton Miller <miltonm@bga.com>
Tested-by: default avatarOlof Johansson <olof@lixom.net>
      7ab3a837
    • Linus Torvalds's avatar
      Merge tag 'sound-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/tiwai/sound · 13d26193
      Linus Torvalds authored 
      sound fixes for 3.3-rc4

Basically all small fixes suited as rc4: a few HD-audio regression fixes,
a stable fix for an old Dell laptop with intel8x0, and a simple fix for
ASoC fsi.

* tag 'sound-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/tiwai/sound:
  ALSA: intel8x0: Fix default inaudible sound on Gateway M520
  ALSA: hda - Fix silent speaker output on Acer Aspire 6935
  ALSA: hda - Fix initialization of secondary capture source on VT1705
  ASoC: fsi: fixup fsi_pointer() calculation method
  ALSA: hda - Fix mute-LED VREF value for new HP laptops
      13d26193
  5. Feb 14, 2012
  7. Feb 13, 2012
    • Takashi Iwai's avatar
      Merge branch 'fix/acer-alc889-fix' into fix/hda · a68f20ef
      Takashi Iwai authored 
      Conflicts:
	sound/pci/hda/patch_realtek.c

Merged back the fix for Acer Aspire 6935 with ALC889 codec.
The fix commit was based on 3.2 kernel so that it can be applied to
stable kernel cleanly.
      a68f20ef
    • Takashi Iwai's avatar
      ALSA: hda - Fix silent speaker output on Acer Aspire 6935 · 02a237b2
      Takashi Iwai authored 
      Since 3.2 kernel, the driver starts trying to assign the multi-io DACs
before the speaker, thus it assigns DAC2/3 for multi-io and DAC4 for
the speaker for a standard laptop setup like a HP, a speaker, a mic-in
and a line-in.  However, on Acer Aspire 6935, it seems that the
speaker pin 0x14 must be connected with either DAC1 or 2; otherwise it
results in silence by some reason, although the codec itself allows
the routing to DAC3/4.

As a workaround, the connection list of each pin is reduced to be
mapped to either only DAC1/2 or DAC3/4, so that the compatible
assignment as in kernel 3.1 is achieved.

Bugzilla: https://bugzilla.kernel.org/show_bug.cgi?id=42740



Cc: <stable@kernel.org> [v3.2+]
Signed-off-by: default avatarTakashi Iwai <tiwai@suse.de>
      02a237b2
    • Takashi Iwai's avatar
      ALSA: hda - Fix initialization of secondary capture source on VT1705 · fc1156c0
      Takashi Iwai authored 
      

VT1705 codec has two ADCs where the secondary ADC has no MUX but only
a fixed connection to the mic pin.  This confused the driver and it
tries always overriding the input-source selection by assumption of
the existing MUX for the secondary ADC, resulted in resetting the
input-source at each time PM (including power-saving) occurs.

The fix is simply to check the existence of MUX for secondary ADCs in
the initialization code.

Tested-by: default avatarAnisse Astier <anisse@astier.eu>
Cc: <stable@kernel.org> [v3.1+]
Signed-off-by: default avatarTakashi Iwai <tiwai@suse.de>
      fc1156c0