/* * ALSA SoC CS4349 codec driver * * Copyright 2015 Cirrus Logic, Inc. * * Author: Tim Howe * * 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. * * 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. * */ #ifndef __CS4349_H__ #define __CS4349_H__ /* CS4349 registers addresses */ #define CS4349_CHIPID 0x01 /* Device and Rev ID, Read Only */ #define CS4349_MODE 0x02 /* Mode Control */ #define CS4349_VMI 0x03 /* Volume, Mixing, Inversion Control */ #define CS4349_MUTE 0x04 /* Mute Control */ #define CS4349_VOLA 0x05 /* DAC Channel A Volume Control */ #define CS4349_VOLB 0x06 /* DAC Channel B Volume Control */ #define CS4349_RMPFLT 0x07 /* Ramp and Filter Control */ #define CS4349_MISC 0x08 /* Power Down,Freeze Control,Pop Stop*/ #define CS4349_I2C_INCR 0x80 /* Device and Revision ID */ #define CS4349_REVA 0xF0 /* Rev A */ #define CS4349_REVB 0xF1 /* Rev B */ #define CS4349_REVC2 0xFF /* Rev C2 */ /* PDN_DONE Poll Maximum * If soft ramp is set it will take much longer to power down * the system. */ #define PDN_POLL_MAX 900 /* Bitfield Definitions */ /* CS4349_MODE */ /* (Digital Interface Format, De-Emphasis Control, Functional Mode */ #define DIF2 (1 << 6) #define DIF1 (1 << 5) #define DIF0 (1 << 4) #define DEM1 (1 << 3) #define DEM0 (1 << 2) #define FM1 (1 << 1) #define DIF_LEFT_JST 0x00 #define DIF_I2S 0x01 #define DIF_RGHT_JST16 0x02 #define DIF_RGHT_JST24 0x03 #define DIF_TDM0 0x04 #define DIF_TDM1 0x05 #define DIF_TDM2 0x06 #define DIF_TDM3 0x07 #define DIF_MASK 0x70 #define MODE_FORMAT(x) (((x)&7)<<4) #define DEM_MASK 0x0C #define NO_DEM 0x00 #define DEM_441 0x04 #define DEM_48K 0x08 #define DEM_32K 0x0C #define FM_AUTO 0x00 #define FM_SNGL 0x01 #define FM_DBL 0x02 #define FM_QUAD 0x03 #define FM_SNGL_MIN 30000 #define FM_SNGL_MAX 54000 #define FM_DBL_MAX 108000 #define FM_QUAD_MAX 216000 #define FM_MASK 0x03 /* CS4349_VMI (VMI = Volume, Mixing and Inversion Controls) */ #define VOLBISA (1 << 7) #define VOLAISB (1 << 7) /* INVERT_A only available for Left Jstfd, Right Jstfd16 and Right Jstfd24 */ #define INVERT_A (1 << 6) /* INVERT_B only available for Left Jstfd, Right Jstfd16 and Right Jstfd24 */ #define INVERT_B (1 << 5) #define ATAPI3 (1 << 3) #define ATAPI2 (1 << 2) #define ATAPI1 (1 << 1) #define ATAPI0 (1 << 0) #define MUTEAB 0x00 #define MUTEA_RIGHTB 0x01 #define MUTEA_LEFTB 0x02 #define MUTEA_SUMLRDIV2B 0x03 #define RIGHTA_MUTEB 0x04 #define RIGHTA_RIGHTB 0x05 #define RIGHTA_LEFTB 0x06 #define RIGHTA_SUMLRDIV2B 0x07 #define LEFTA_MUTEB 0x08 #define LEFTA_RIGHTB 0x09 /* Default */ #define LEFTA_LEFTB 0x0A #define LEFTA_SUMLRDIV2B 0x0B #define SUMLRDIV2A_MUTEB 0x0C #define SUMLRDIV2A_RIGHTB 0x0D #define SUMLRDIV2A_LEFTB 0x0E #define SUMLRDIV2_AB 0x0F #define CHMIX_MASK 0x0F /* CS4349_MUTE */ #define AUTOMUTE (1 << 7) #define MUTEC_AB (1 << 5) #define MUTE_A (1 << 4) #define MUTE_B (1 << 3) #define MUTE_AB_MASK 0x18 /* CS4349_RMPFLT (Ramp and Filter Control) */ #define SCZ1 (1 << 7) #define SCZ0 (1 << 6) #define RMP_UP (1 << 5) #define RMP_DN (1 << 4) #define FILT_SEL (1 << 2) #define IMMDT_CHNG 0x31 #define ZEROCRSS 0x71 #define SOFT_RMP 0xB1 #define SFTRMP_ZEROCRSS 0xF1 #define SR_ZC_MASK 0xC0 /* CS4349_MISC */ #define PWR_DWN (1 << 7) #define FREEZE (1 << 5) #define POPG_EN (1 << 4) #endif /* __CS4349_H__ */ >space:mode:
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/adau1781-i2c.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/adau1781-i2c.c')