/* * cs4265.h -- CS4265 ALSA SoC audio driver * * Copyright 2014 Cirrus Logic, Inc. * * Author: Paul Handrigan * * This program is free software; you can redistribute it and/or modify * it under the terms of the GNU General Public License version 2 as * published by the Free Software Foundation. * */ #ifndef __CS4265_H__ #define __CS4265_H__ #define CS4265_CHIP_ID 0x1 #define CS4265_CHIP_ID_VAL 0xD0 #define CS4265_CHIP_ID_MASK 0xF0 #define CS4265_REV_ID_MASK 0x0F #define CS4265_PWRCTL 0x02 #define CS4265_PWRCTL_PDN 1 #define CS4265_DAC_CTL 0x3 #define CS4265_DAC_CTL_MUTE (1 << 2) #define CS4265_DAC_CTL_DIF (3 << 4) #define CS4265_ADC_CTL 0x4 #define CS4265_ADC_MASTER 1 #define CS4265_ADC_DIF (1 << 4) #define CS4265_ADC_FM (3 << 6) #define CS4265_MCLK_FREQ 0x5 #define CS4265_MCLK_FREQ_MASK (7 << 4) #define CS4265_SIG_SEL 0x6 #define CS4265_SIG_SEL_LOOP (1 << 1) #define CS4265_CHB_PGA_CTL 0x7 #define CS4265_CHA_PGA_CTL 0x8 #define CS4265_ADC_CTL2 0x9 #define CS4265_DAC_CHA_VOL 0xA #define CS4265_DAC_CHB_VOL 0xB #define CS4265_DAC_CTL2 0xC #define CS4265_INT_STATUS 0xD #define CS4265_INT_MASK 0xE #define CS4265_STATUS_MODE_MSB 0xF #define CS4265_STATUS_MODE_LSB 0x10 #define CS4265_SPDIF_CTL1 0x11 #define CS4265_SPDIF_CTL2 0x12 #define CS4265_SPDIF_CTL2_MUTE (1 << 4) #define CS4265_SPDIF_CTL2_DIF (3 << 6) #define CS4265_C_DATA_BUFF 0x13 #define CS4265_MAX_REGISTER 0x2A #endif class='tabs'> summaryrefslogtreecommitdiff
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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 /include/net/bluetooth/hci_sock.h
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 'include/net/bluetooth/hci_sock.h')