Eric Lee / smarc-fsl-linux-kernel

16 Oct, 2007

1 commit

16 May, 2007

1 commit

11 May, 2007

1 commit

  • 2078f38c8   [ALSA] intel8x0 - Fix Oops in crash kernel ... Browse Code »

    When intel8x0 driver is loaded in the crash kernel, it gets Oops
    occasionally. This is because the irq handler gets called before
    the proper hardware initialization. Now defer it after
    snd_intel8x0_chip_init().
    (reference: http://lkml.org/lkml/2007/3/5/252)

    Signed-off-by: Takashi Iwai
    Signed-off-by: Jaroslav Kysela

    Takashi Iwai
     

14 Mar, 2007

2 commits

09 Feb, 2007

3 commits

  • a9e996604   [ALSA] intel8x0 - Add spdif_aclink option ... Browse Code »

    Added spdif_aclink module option to specify whether the board
    has SPDIF over AC-link or a direct connection from the controller
    chip.
    NForce and ICH4 (or newer) boards may be equipped with SPDIF
    through AC97 codec. In such a case, SPDIF should be handled
    as if the old ICH style (the same slot for analog and digital).
    A quirk list is added to detect this automatically for known
    hardwares.
    Corresponds to ALSA bug#2637.

    Signed-off-by: Takashi Iwai
    Signed-off-by: Jaroslav Kysela

    Takashi Iwai
     
  • f1a63a38d   [ALSA] ac97 - Suppress power-saving mode on non-supporting drivers ... Browse Code »

    Don't enable power-saving mode on drivers that don't support
    it. The supporting drivers set AC97_SCAP_POWER_SAVE to scaps
    at creation of ac97 instance.
    Currently enable on the following drivers: intel8x0, intel8x0m,
    atiixp, atiixp-modem, via82xx and via82xx-modem.
    Also, a bit clean up of power-saving stuff:
    - Don't create an own workq
    - Remove superfluous ifdefs

    Signed-off-by: Takashi Iwai
    Signed-off-by: Jaroslav Kysela

    Takashi Iwai
     
  • 3388c37e0   [ALSA] intel8x0 - Use pci_iomap ... Browse Code »

    Use pci_iomap and ioread*/iowrite*() functions for accessing
    hardwares. pci_iomap is suitable for hardwares like ICH and
    compatible that have both PIO and MMIO.

    Signed-off-by: Takashi Iwai
    Signed-off-by: Jaroslav Kysela

    Takashi Iwai
     

20 Dec, 2006

1 commit

  • 437a5a460   [ALSA] Remove IRQF_DISABLED for shared PCI irqs ... Browse Code »

    Fix IRQ flags for PCI devices.
    The shared IRQs for PCI devices shouldn't be allocated with
    IRQF_DISABLED. Also, when MSI is enabled, IRQF_SHARED shouldn't
    be used.
    The patch removes unnecessary cast in request_irq and free_irq,
    too.

    Signed-off-by: Takashi Iwai
    Signed-off-by: Jaroslav Kysela

    Takashi Iwai
     

25 Oct, 2006

1 commit

22 Oct, 2006

1 commit

  • 30b35399c   [ALSA] Various fixes for suspend/resume of ALSA PCI drivers ... Browse Code »

    - Check the return value of pci_enable_device() and request_irq()
    in the suspend. If any error occurs there, disable the device
    using snd_card_disconnect().
    - Call pci_set_power_state() properly with pci_choose_state().
    - Fix the order to call pci_set_power_state().
    - Removed obsolete house-made PM codes in some drivers.

    Signed-off-by: Takashi Iwai
    Signed-off-by: Jaroslav Kysela

    Takashi Iwai
     

05 Oct, 2006

1 commit

  • 7d12e780e   IRQ: Maintain regs pointer globally rather than passing to IRQ handlers ... Browse Code »

    Maintain a per-CPU global "struct pt_regs *" variable which can be used instead
    of passing regs around manually through all ~1800 interrupt handlers in the
    Linux kernel.

    The regs pointer is used in few places, but it potentially costs both stack
    space and code to pass it around. On the FRV arch, removing the regs parameter
    from all the genirq function results in a 20% speed up of the IRQ exit path
    (ie: from leaving timer_interrupt() to leaving do_IRQ()).

    Where appropriate, an arch may override the generic storage facility and do
    something different with the variable. On FRV, for instance, the address is
    maintained in GR28 at all times inside the kernel as part of general exception
    handling.

    Having looked over the code, it appears that the parameter may be handed down
    through up to twenty or so layers of functions. Consider a USB character
    device attached to a USB hub, attached to a USB controller that posts its
    interrupts through a cascaded auxiliary interrupt controller. A character
    device driver may want to pass regs to the sysrq handler through the input
    layer which adds another few layers of parameter passing.

    I've build this code with allyesconfig for x86_64 and i386. I've runtested the
    main part of the code on FRV and i386, though I can't test most of the drivers.
    I've also done partial conversion for powerpc and MIPS - these at least compile
    with minimal configurations.

    This will affect all archs. Mostly the changes should be relatively easy.
    Take do_IRQ(), store the regs pointer at the beginning, saving the old one:

    struct pt_regs *old_regs = set_irq_regs(regs);

    And put the old one back at the end:

    set_irq_regs(old_regs);

    Don't pass regs through to generic_handle_irq() or __do_IRQ().

    In timer_interrupt(), this sort of change will be necessary:

    - update_process_times(user_mode(regs));
    - profile_tick(CPU_PROFILING, regs);
    + update_process_times(user_mode(get_irq_regs()));
    + profile_tick(CPU_PROFILING);

    I'd like to move update_process_times()'s use of get_irq_regs() into itself,
    except that i386, alone of the archs, uses something other than user_mode().

    Some notes on the interrupt handling in the drivers:

    (*) input_dev() is now gone entirely. The regs pointer is no longer stored in
    the input_dev struct.

    (*) finish_unlinks() in drivers/usb/host/ohci-q.c needs checking. It does
    something different depending on whether it's been supplied with a regs
    pointer or not.

    (*) Various IRQ handler function pointers have been moved to type
    irq_handler_t.

    Signed-Off-By: David Howells
    (cherry picked from 1b16e7ac850969f38b375e511e3fa2f474a33867 commit)

    David Howells
     

23 Sep, 2006

1 commit

  • 6dbe66287   [ALSA] Add experimental support of aggressive AC97 power-saving mode ... Browse Code »

    Added CONFIG_SND_AC97_POWER_SAVE kernel config to enable the support
    of aggressive AC97 power-saving mode. In this mode, the AC97
    powerdown register bits are dynamically controlled at each open/close
    of PCM streams.
    The mode is activated via power_save option for snd-ac97-codec
    driver. As default it's off. It can be turned on/off on the fly
    via sysfs, too.

    Signed-off-by: Takashi Iwai
    Signed-off-by: Jaroslav Kysela

    Takashi Iwai
     

13 Jul, 2006

2 commits

03 Jul, 2006

1 commit

23 Jun, 2006

3 commits

28 Apr, 2006

2 commits

22 Mar, 2006

2 commits

01 Feb, 2006

1 commit

22 Jan, 2006

2 commits

  • c9fe51c49   [ALSA] intel8x0: Add quirk for Optiplex GX270 ... Browse Code »

    Modules: Intel8x0 driver

    This patch adds a quirk entry for the Dell Optiplex GX270, on which
    the volume is set by the headphone control, not the master control.

    Signed-off-by: Chris Ball
    Signed-off-by: Takashi Iwai

    Chris Ball
     
  • d82ed2ffc   [ALSA] intel8x0 - Fix duplicate ac97_quirks entry ... Browse Code »

    Modules: Intel8x0 driver

    in recent -mm kernels additional quirks for ac97 hardware in HP laptops
    have been added. However, now the list in intel8x0.c contains a duplicate,
    since the HP nx6110 and nc6120 have identical subdevice ids.

    This was introduced in -mm1 by the following patch:
    add-new-quirk-for-devices-with-mute-leds-and-separate-headphone-volume.patch

    Since the HP nx6110 and nc6120 are almost identical, both entries
    should really be combined, as in the following patch. I have checked
    that AC97_TUNE_HP_MUTE_LED is the right thing to do.

    Signed-off-by: Andrew Morton
    Signed-off-by: Takashi Iwai

    Ulrich Mueller
     

03 Jan, 2006

6 commits

11 Nov, 2005

1 commit

04 Nov, 2005

7 commits