Eric Lee / smarc-fsl-linux-kernel

15 Nov, 2016

1 commit

  • aeaa6203b   ALSA: emu10k1: Use workqueue instead of kthread for emu1010 fw polling ... Browse Code »

    This patch is a cleanup of EMU1010 dock probing code in emu10k1 driver
    to use work instead of kthread in a loop. The work is lighter and
    easier to control than kthread, in general.

    Instead of a loop with the explicit sleep, we do simply
    delayed-schedule the work. At suspend/resume callbacks, the work is
    canceled and restarted, respectively.

    Signed-off-by: Takashi Iwai

    Takashi Iwai
     

29 Apr, 2015

1 commit

  • 7241ea558   ALSA: emu10k1: Emu10k2 32 bit DMA mode ... Browse Code »

    Looks like audigy emu10k2 (probably emu10k1 - sb live too) support two
    modes for DMA. Second mode is useful for 64 bit os with more then 2 GB
    of ram (fixes problems with big soundfont loading)

    1) 32MB from 2 GB address space using 8192 pages (used now as default)
    2) 16MB from 4 GB address space using 4096 pages

    Mode is set using HCFG_EXPANDED_MEM flag in HCFG register.
    Also format of emu10k2 page table is then different.

    Signed-off-by: Peter Zubaj
    Tested-by: Takashi Iwai
    Cc:
    Signed-off-by: Takashi Iwai

    Peter Zubaj
     

28 Jan, 2015

1 commit

02 Jan, 2015

1 commit

  • bb814c396   ALSA: emu10k1: Remove always NULL parameters ... Browse Code »

    The various PCM and hwdep allocation functions in this driver take a pointer
    to a pointer of a PCM/hwdep where if this parameter is provided the newly
    allocated object is stored. All callers pass NULL though, so remove the
    parameter.

    Signed-off-by: Lars-Peter Clausen
    Signed-off-by: Takashi Iwai

    Lars-Peter Clausen
     

11 Mar, 2014

1 commit

24 Apr, 2013

1 commit

  • e08b34e86   ALSA: emu10k1: Fix dock firmware loading ... Browse Code »

    The commit [b209c4df: ALSA: emu10k1: cache emu1010 firmware] broke the
    firmware loading of the dock, just (mistakenly) ignoring a different
    firmware for docks on some models. This patch revives them again.

    Bugzilla: https://bugs.archlinux.org/task/34865
    Reported-and-tested-by: Tobias Powalowski
    Cc: [v3.8+]
    Signed-off-by: Takashi Iwai

    Takashi Iwai
     

23 Nov, 2012

2 commits

09 Oct, 2012

1 commit

15 Aug, 2012

1 commit

18 Oct, 2010

1 commit

18 Aug, 2010

1 commit

  • 56385a12d   ALSA: emu10k1 - delay the PCM interrupts (add pcm_irq_delay parameter) ... Browse Code »

    With some hardware combinations, the PCM interrupts are acknowledged
    before the period boundary from the emu10k1 chip. The midlevel PCM code
    gets confused and the playback stream is interrupted.

    It seems that the interrupt processing shift by 2 samples is enough
    to fix this issue. This default value does not harm other,
    non-affected hardware.

    More information: Kernel bugzilla bug#16300

    [A copmile warning fixed by tiwai]

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

    Jaroslav Kysela
     

27 Mar, 2009

2 commits

  • f9f35677d   emu101k1.h: fix duplicate include of <linux/types.h> ... Browse Code »

    Impact: cleanup

    The earlier patch 'make most exported headers use strict integer
    types' accidentally includes both from the common and
    from the kernel-only parts.

    Signed-off-by: Arnd Bergmann
    Acked-by: Takashi Iwai
    Signed-off-by: H. Peter Anvin
    Signed-off-by: Ingo Molnar

    Arnd Bergmann
     
  • 9adfbfb61   make most exported headers use strict integer types ... Browse Code »

    This takes care of all files that have only a small number
    of non-strict integer type uses.

    Signed-off-by: Arnd Bergmann
    Cc: Mauro Carvalho Chehab
    Cc: David Airlie
    Cc: Arnaldo Carvalho de Melo
    Cc: YOSHIFUJI Hideaki
    Cc: netdev@vger.kernel.org
    Cc: linux-ppp@vger.kernel.org
    Cc: Jaroslav Kysela
    Cc: Takashi Iwai
    Cc: David Woodhouse
    Signed-off-by: H. Peter Anvin
    Signed-off-by: Ingo Molnar

    Arnd Bergmann
     

02 Jun, 2008

1 commit

01 Feb, 2008

5 commits

16 Oct, 2007

5 commits

20 Jul, 2007

1 commit

14 Feb, 2007

1 commit

09 Feb, 2007

7 commits

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

23 Jun, 2006

1 commit

22 Mar, 2006

1 commit

03 Jan, 2006

2 commits