config SND_SOC_QCOM tristate "ASoC support for QCOM platforms" depends on ARCH_QCOM || COMPILE_TEST help Say Y or M if you want to add support to use audio devices in Qualcomm Technologies SOC-based platforms. config SND_SOC_LPASS_CPU tristate select REGMAP_MMIO config SND_SOC_LPASS_PLATFORM tristate depends on HAS_DMA select REGMAP_MMIO config SND_SOC_LPASS_IPQ806X tristate depends on HAS_DMA select SND_SOC_LPASS_CPU select SND_SOC_LPASS_PLATFORM config SND_SOC_LPASS_APQ8016 tristate depends on HAS_DMA select SND_SOC_LPASS_CPU select SND_SOC_LPASS_PLATFORM config SND_SOC_STORM tristate "ASoC I2S support for Storm boards" depends on SND_SOC_QCOM && HAS_DMA select SND_SOC_LPASS_IPQ806X select SND_SOC_MAX98357A help Say Y or M if you want add support for SoC audio on the Qualcomm Technologies IPQ806X-based Storm board. config SND_SOC_APQ8016_SBC tristate "SoC Audio support for APQ8016 SBC platforms" depends on SND_SOC_QCOM && HAS_DMA select SND_SOC_LPASS_APQ8016 help Support for Qualcomm Technologies LPASS audio block in APQ8016 SOC-based systems. Say Y if you want to use audio devices on MI2S. on value='packet-rx-pump-back'>packet-rx-pump-back net-next plumbingsTobias Klauser
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t/sound/soc/codecs?h=nds-private-remove&id=c8f325a59cfc718d13a50fbc746ed9b415c25e92'>codecs/wm8974.c
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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/codecs/wm8974.c
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/codecs/wm8974.c')