/* * tas5720.h - ALSA SoC Texas Instruments TAS5720 Mono Audio Amplifier * * Copyright (C)2015-2016 Texas Instruments Incorporated - http://www.ti.com * * Author: Andreas Dannenberg * * 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 __TAS5720_H__ #define __TAS5720_H__ /* Register Address Map */ #define TAS5720_DEVICE_ID_REG 0x00 #define TAS5720_POWER_CTRL_REG 0x01 #define TAS5720_DIGITAL_CTRL1_REG 0x02 #define TAS5720_DIGITAL_CTRL2_REG 0x03 #define TAS5720_VOLUME_CTRL_REG 0x04 #define TAS5720_ANALOG_CTRL_REG 0x06 #define TAS5720_FAULT_REG 0x08 #define TAS5720_DIGITAL_CLIP2_REG 0x10 #define TAS5720_DIGITAL_CLIP1_REG 0x11 #define TAS5720_MAX_REG TAS5720_DIGITAL_CLIP1_REG /* TAS5720_DEVICE_ID_REG */ #define TAS5720_DEVICE_ID 0x01 /* TAS5720_POWER_CTRL_REG */ #define TAS5720_DIG_CLIP_MASK GENMASK(7, 2) #define TAS5720_SLEEP BIT(1) #define TAS5720_SDZ BIT(0) /* TAS5720_DIGITAL_CTRL1_REG */ #define TAS5720_HPF_BYPASS BIT(7) #define TAS5720_TDM_CFG_SRC BIT(6) #define TAS5720_SSZ_DS BIT(3) #define TAS5720_SAIF_RIGHTJ_24BIT (0x0) #define TAS5720_SAIF_RIGHTJ_20BIT (0x1) #define TAS5720_SAIF_RIGHTJ_18BIT (0x2) #define TAS5720_SAIF_RIGHTJ_16BIT (0x3) #define TAS5720_SAIF_I2S (0x4) #define TAS5720_SAIF_LEFTJ (0x5) #define TAS5720_SAIF_FORMAT_MASK GENMASK(2, 0) /* TAS5720_DIGITAL_CTRL2_REG */ #define TAS5720_MUTE BIT(4) #define TAS5720_TDM_SLOT_SEL_MASK GENMASK(2, 0) /* TAS5720_ANALOG_CTRL_REG */ #define TAS5720_PWM_RATE_6_3_FSYNC (0x0 << 4) #define TAS5720_PWM_RATE_8_4_FSYNC (0x1 << 4) #define TAS5720_PWM_RATE_10_5_FSYNC (0x2 << 4) #define TAS5720_PWM_RATE_12_6_FSYNC (0x3 << 4) #define TAS5720_PWM_RATE_14_7_FSYNC (0x4 << 4) #define TAS5720_PWM_RATE_16_8_FSYNC (0x5 << 4) #define TAS5720_PWM_RATE_20_10_FSYNC (0x6 << 4) #define TAS5720_PWM_RATE_24_12_FSYNC (0x7 << 4) #define TAS5720_PWM_RATE_MASK GENMASK(6, 4) #define TAS5720_ANALOG_GAIN_19_2DBV (0x0 << 2) #define TAS5720_ANALOG_GAIN_20_7DBV (0x1 << 2) #define TAS5720_ANALOG_GAIN_23_5DBV (0x2 << 2) #define TAS5720_ANALOG_GAIN_26_3DBV (0x3 << 2) #define TAS5720_ANALOG_GAIN_MASK GENMASK(3, 2) #define TAS5720_ANALOG_GAIN_SHIFT (0x2) /* TAS5720_FAULT_REG */ #define TAS5720_OC_THRESH_100PCT (0x0 << 4) #define TAS5720_OC_THRESH_75PCT (0x1 << 4) #define TAS5720_OC_THRESH_50PCT (0x2 << 4) #define TAS5720_OC_THRESH_25PCT (0x3 << 4) #define TAS5720_OC_THRESH_MASK GENMASK(5, 4) #define TAS5720_CLKE BIT(3) #define TAS5720_OCE BIT(2) #define TAS5720_DCE BIT(1) #define TAS5720_OTE BIT(0) #define TAS5720_FAULT_MASK GENMASK(3, 0) /* TAS5720_DIGITAL_CLIP1_REG */ #define TAS5720_CLIP1_MASK GENMASK(7, 2) #define TAS5720_CLIP1_SHIFT (0x2) #endif /* __TAS5720_H__ */ soc/codecs/cs47l24.h?id=42d5aa76ec8fc9602922cc590a437ecd6693523b'>cs47l24.h
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authorLinus Torvalds <torvalds@linux-foundation.org>2017-01-29 13:50:06 -0800
committerLinus Torvalds <torvalds@linux-foundation.org>2017-01-29 13:50:06 -0800
commit39cb2c9a316e77f6dfba96c543e55b6672d5a37e (patch)
tree98fe974ee4e20121253de7f61fc8d01bdb3821c1 /sound/soc/rockchip/rockchip_spdif.c
parent2c5d9555d6d937966d79d4c6529a5f7b9206e405 (diff)
drm/i915: Check for NULL i915_vma in intel_unpin_fb_obj()
I've seen this trigger twice now, where the i915_gem_object_to_ggtt() call in intel_unpin_fb_obj() returns NULL, resulting in an oops immediately afterwards as the (inlined) call to i915_vma_unpin_fence() tries to dereference it. It seems to be some race condition where the object is going away at shutdown time, since both times happened when shutting down the X server. The call chains were different: - VT ioctl(KDSETMODE, KD_TEXT): intel_cleanup_plane_fb+0x5b/0xa0 [i915] drm_atomic_helper_cleanup_planes+0x6f/0x90 [drm_kms_helper] intel_atomic_commit_tail+0x749/0xfe0 [i915] intel_atomic_commit+0x3cb/0x4f0 [i915] drm_atomic_commit+0x4b/0x50 [drm] restore_fbdev_mode+0x14c/0x2a0 [drm_kms_helper] drm_fb_helper_restore_fbdev_mode_unlocked+0x34/0x80 [drm_kms_helper] drm_fb_helper_set_par+0x2d/0x60 [drm_kms_helper] intel_fbdev_set_par+0x18/0x70 [i915] fb_set_var+0x236/0x460 fbcon_blank+0x30f/0x350 do_unblank_screen+0xd2/0x1a0 vt_ioctl+0x507/0x12a0 tty_ioctl+0x355/0xc30 do_vfs_ioctl+0xa3/0x5e0 SyS_ioctl+0x79/0x90 entry_SYSCALL_64_fastpath+0x13/0x94 - i915 unpin_work workqueue: intel_unpin_work_fn+0x58/0x140 [i915] process_one_work+0x1f1/0x480 worker_thread+0x48/0x4d0 kthread+0x101/0x140 and this patch purely papers over the issue by adding a NULL pointer check and a WARN_ON_ONCE() to avoid the oops that would then generally make the machine unresponsive. Other callers of i915_gem_object_to_ggtt() seem to also check for the returned pointer being NULL and warn about it, so this clearly has happened before in other places. [ Reported it originally to the i915 developers on Jan 8, applying the ugly workaround on my own now after triggering the problem for the second time with no feedback. This is likely to be the same bug reported as https://bugs.freedesktop.org/show_bug.cgi?id=98829 https://bugs.freedesktop.org/show_bug.cgi?id=99134 which has a patch for the underlying problem, but it hasn't gotten to me, so I'm applying the workaround. ] Cc: Daniel Vetter <daniel.vetter@intel.com> Cc: Jani Nikula <jani.nikula@linux.intel.com> Cc: Ville Syrjälä <ville.syrjala@linux.intel.com> Cc: Chris Wilson <chris@chris-wilson.co.uk> Cc: Maarten Lankhorst <maarten.lankhorst@linux.intel.com> Cc: Tvrtko Ursulin <tvrtko.ursulin@intel.com> Cc: Imre Deak <imre.deak@intel.com> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Diffstat (limited to 'sound/soc/rockchip/rockchip_spdif.c')