#ifndef __SOUND_REVO_H #define __SOUND_REVO_H /* * ALSA driver for ICEnsemble ICE1712 (Envy24) * * Lowlevel functions for M-Audio Revolution 7.1 * * Copyright (c) 2003 Takashi Iwai * * This program is free software; you can redistribute it and/or modify * it under the terms of the GNU General Public License as published by * the Free Software Foundation; either version 2 of the License, or * (at your option) any later version. * * This program is distributed in the hope that it will be useful, * but WITHOUT ANY WARRANTY; without even the implied warranty of * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the * GNU General Public License for more details. * * You should have received a copy of the GNU General Public License * along with this program; if not, write to the Free Software * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA * */ #define REVO_DEVICE_DESC \ "{MidiMan M Audio,Revolution 7.1},"\ "{MidiMan M Audio,Revolution 5.1},"\ "{MidiMan M Audio,Audiophile 192}," #define VT1724_SUBDEVICE_REVOLUTION71 0x12143036 #define VT1724_SUBDEVICE_REVOLUTION51 0x12143136 #define VT1724_SUBDEVICE_AUDIOPHILE192 0x12143236 /* entry point */ extern struct snd_ice1712_card_info snd_vt1724_revo_cards[]; /* * MidiMan M-Audio Revolution GPIO definitions */ #define VT1724_REVO_CCLK 0x02 #define VT1724_REVO_CDIN 0x04 /* not used */ #define VT1724_REVO_CDOUT 0x08 #define VT1724_REVO_CS0 0x10 /* AK5365 chipselect for (revo51) */ #define VT1724_REVO_CS1 0x20 /* front AKM4381 chipselect */ #define VT1724_REVO_CS2 0x40 /* surround AKM4355 CS (revo71) */ #define VT1724_REVO_I2C_DATA 0x40 /* I2C: PT 2258 SDA (on revo51) */ #define VT1724_REVO_I2C_CLOCK 0x80 /* I2C: PT 2258 SCL (on revo51) */ #define VT1724_REVO_CS3 0x80 /* AK4114 for AP192 */ #define VT1724_REVO_MUTE (1<<22) /* 0 = all mute, 1 = normal operation */ #endif /* __SOUND_REVO_H */ linux/net-next.git/diff/sound/soc/fsl/imx-ssi.h?id=92c715fca907686f5298220ece53423e38ba3aed'>diff
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authorArd Biesheuvel <ard.biesheuvel@linaro.org>2017-02-01 17:45:02 +0000
committerIngo Molnar <mingo@kernel.org>2017-02-01 21:17:49 +0100
commitc8f325a59cfc718d13a50fbc746ed9b415c25e92 (patch)
treed53fbdac9d0781e39a13b2ac6b2bd258cf3b4140 /sound/soc/bcm
parentbf29bddf0417a4783da3b24e8c9e017ac649326f (diff)
efi/fdt: Avoid FDT manipulation after ExitBootServices()
Some AArch64 UEFI implementations disable the MMU in ExitBootServices(), after which unaligned accesses to RAM are no longer supported. Commit: abfb7b686a3e ("efi/libstub/arm*: Pass latest memory map to the kernel") fixed an issue in the memory map handling of the stub FDT code, but inadvertently created an issue with such firmware, by moving some of the FDT manipulation to after the invocation of ExitBootServices(). Given that the stub's libfdt implementation uses the ordinary, accelerated string functions, which rely on hardware handling of unaligned accesses, manipulating the FDT with the MMU off may result in alignment faults. So fix the situation by moving the update_fdt_memmap() call into the callback function invoked by efi_exit_boot_services() right before it calls the ExitBootServices() UEFI service (which is arguably a better place for it anyway) Note that disabling the MMU in ExitBootServices() is not compliant with the UEFI spec, and carries great risk due to the fact that switching from cached to uncached memory accesses halfway through compiler generated code (i.e., involving a stack) can never be done in a way that is architecturally safe. Fixes: abfb7b686a3e ("efi/libstub/arm*: Pass latest memory map to the kernel") Signed-off-by: Ard Biesheuvel <ard.biesheuvel@linaro.org> Tested-by: Riku Voipio <riku.voipio@linaro.org> Cc: <stable@vger.kernel.org> Cc: mark.rutland@arm.com Cc: linux-efi@vger.kernel.org Cc: matt@codeblueprint.co.uk Cc: leif.lindholm@linaro.org Cc: linux-arm-kernel@lists.infradead.org Link: http://lkml.kernel.org/r/1485971102-23330-2-git-send-email-ard.biesheuvel@linaro.org Signed-off-by: Ingo Molnar <mingo@kernel.org>
Diffstat (limited to 'sound/soc/bcm')