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/linux/Documentation/devicetree/bindings/soc/fsl/cpm_qe/
H A Dfsl,qe-tsa.yaml1 # SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
3 ---
4 $id: http://devicetree.org/schemas/soc/fsl/cpm_qe/fsl,qe-tsa.yaml#
5 $schema: http://devicetree.org/meta-schemas/core.yaml#
7 title: PowerQUICC QE Time-slot assigner (TSA) controller
10 - Herve Codina <herve.codina@bootlin.com>
13 The TSA is the time-slot assigner that can be found on some PowerQUICC SoC.
14 Its purpose is to route some TDM time-slots to other internal serial
20 - enum:
21 - fsl,mpc8321-tsa
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/linux/Documentation/devicetree/bindings/iio/resolver/
H A Dadi,ad2s1210.yaml1 # SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
3 ---
5 $schema: http://devicetree.org/meta-schemas/core.yaml#
7 title: Analog Devices AD2S1210 Resolver-to-Digital Converter
10 - Michael Hennerich <michael.hennerich@analog.com>
13 The AD2S1210 is a complete 10-bit to 16-bit resolution tracking
14 resolver-to-digital converter, integrating an on-board programmable
29 0 0 Normal mode - position output
30 0 1 Normal mode - velocity output
44 Note on SPI connections: The CS line on the AD2S1210 should hard-wired to
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/linux/sound/soc/codecs/
H A Dcs42l42.c1 // SPDX-License-Identifier: GPL-2.0-only
3 * cs42l42.c -- CS42L42 ALSA SoC audio driver
29 #include <sound/soc-dapm.h>
32 #include <dt-bindings/sound/cs42l42.h>
400 static DECLARE_TLV_DB_SCALE(adc_tlv, -9700, 100, true);
401 static DECLARE_TLV_DB_SCALE(mixer_tlv, -6300, 100, true);
410 switch (ucontrol->value.integer.value[0]) { in cs42l42_slow_start_put()
418 return -EINVAL; in cs42l42_slow_start_put()
452 SOC_SINGLE_S8_TLV("ADC Volume", CS42L42_ADC_VOLUME, -97, 12, adc_tlv),
479 struct snd_soc_component *component = snd_soc_dapm_to_component(w->dapm); in cs42l42_hp_adc_ev()
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/linux/sound/oss/dmasound/
H A Ddmasound_core.c12 * interface and the u-law to signed byte conversion.
14 * Michael Marte (marte@informatik.uni-muenchen.de) did the sound queue,
17 * - Michael Schlueter for initial ideas and documentation on the MFP and
19 * - Therapy? for their CD 'Troublegum' which really made me rock.
33 * - Fixed atari_stram_alloc() call, the timer
36 * - After some discussion with Michael Schlueter,
38 * - Slightly speeded up U8->S8 translation by using
40 * - Added 4:3 interpolation for /dev/audio
43 * - Fixe
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/linux/Documentation/filesystems/xfs/
H A Dxfs-delayed-logging-design.rst1 .. SPDX-License-Identifier: GPL-2.0
33 details logged are made up of the changes to in-core structures rather than
34 on-disk structures. Other objects - typically buffers - have their physical
42 logging overhead as low as possible. Some items are very frequently modified,
44 the overhead of metadata logging low is of prime importance.
64 place. This means that permanent transactions can be used for one-shot
65 modifications, but one-shot reservations cannot be used for permanent
68 In the code, a one-shot transaction pattern looks somewhat like this::
97 While this might look similar to a one-shot transaction, there is an important
123 the on-disk journal.
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/linux/drivers/soc/fsl/qe/
H A Dtsa.c1 // SPDX-License-Identifier: GPL-2.0
11 #include <dt-bindings/soc/cpm1-fsl,tsa.h>
12 #include <dt-bindings/soc/qe-fsl,tsa.h>
51 * - CPM1: 32bit register split in 2*16bit (16bit TDM)
52 * - QE: 4x16bit registers, one per TDM
183 return container_of(tsa_serial, struct tsa, serials[tsa_serial->id]); in tsa_serial_get_tsa()
229 return tsa->version == TSA_QE; in tsa_is_qe()
238 switch (tsa_serial->id) { in tsa_qe_serial_get_num()
248 dev_err(tsa->dev, "Unsupported serial id %u\n", tsa_serial->id); in tsa_qe_serial_get_num()
249 return -EINVAL; in tsa_qe_serial_get_num()
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/linux/fs/f2fs/
H A Df2fs.h1 /* SPDX-License-Identifier: GPL-2.0 */
13 #include <linux/page-flags.h>
70 #define F2FS_ALL_FAULT_TYPE (GENMASK(FAULT_MAX - 1, 0))
79 #define IS_FAULT_SET(fi, type) ((fi)->inject_type & BIT(type))
119 #define F2FS_OPTION(sbi) ((sbi)->mount_opt)
126 ((long long)((a) - (b)) > 0))
129 * should not change u32, since it is the on-disk block
144 * prevents priority inversion when a low-priority reader acquires the read lock
146 * higher-priority clients.
161 int active_logs; /* # of active logs */
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/linux/mm/
H A Dvmscan.c1 // SPDX-License-Identifier: GPL-2.0
31 #include <linux/backing-dev.h>
45 #include <linux/memory-tiers.h>
101 /* Can active folios be deactivated as part of reclaim? */
127 * Cgroup memory below memory.low is protected as long as we
129 * reduced force or passed over entirely due to its memory.low
148 /* The file folios on the current node are dangerously low */
189 if ((_folio)->lru.prev != _base) { \
192 prev = lru_to_folio(&(_folio->lru)); \
193 prefetchw(&prev->_field); \
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/linux/fs/ext4/
H A Dext4.h1 // SPDX-License-Identifier: GPL-2.0
7 * Laboratoire MASI - Institut Blaise Pascal
38 #include <linux/percpu-rwsem.h>
61 * with DOUBLE_CHECK defined mballoc creates persistent in-core
77 printk(KERN_DEBUG "EXT4-fs DEBUG (%s, %d): %s:", \
95 pr_debug("[%s/%d] EXT4-fs (%s): ino %lu: (%s, %d): %s:" fmt, \
96 current->comm, task_pid_nr(current), \
97 ino->i_sb->s_id, ino->i_ino, __FILE__, __LINE__, \
116 /* data type for filesystem-wide blocks number */
146 * Tries to lookup in-memory data structures to find the most
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/linux/fs/reiserfs/
H A Dreiserfs.h1 /* SPDX-License-Identifier: GPL-2.0 */
26 /* bitmasks for i_flags field in reiserfs-specific part of inode */
30 * an object have. If this is set, that format is 3.6 otherwise - 3.5
77 /* per-transaction list of inodes which have preallocated blocks */
87 * we use these for fsync or O_SYNC to decide which transaction
114 #define sb_block_count(sbp) (le32_to_cpu((sbp)->s_v1.s_block_count))
115 #define set_sb_block_count(sbp,v) ((sbp)->s_v1.s_block_count = cpu_to_le32(v))
116 #define sb_free_blocks(sbp) (le32_to_cpu((sbp)->s_v1.s_free_blocks))
117 #define set_sb_free_blocks(sbp,v) ((sbp)->s_v1.s_free_blocks = cpu_to_le32(v))
118 #define sb_root_block(sbp) (le32_to_cpu((sbp)->s_v1.s_root_block))
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/linux/drivers/isdn/hardware/mISDN/
H A Dhfcmulti.c1 // SPDX-License-Identifier: GPL-2.0-or-later
3 * hfcmulti.c low level driver for hfc-4s/hfc-8s/hfc-e1 based cards
7 * Peter Sprenger (sprengermoving-bytes.de)
9 * inspired by existing hfc-pci driver:
10 * Copyright 1999 by Werner Cornelius (werner@isdn-development.de)
22 * Bit 0-7 = 0x00001 = HFC-E1 (1 port)
23 * or Bit 0-7 = 0x00004 = HFC-4S (4 ports)
24 * or Bit 0-7 = 0x00008 = HFC-8S (8 ports)
26 * Bit 9 = 0x00200 = Disable DTMF detect on all B-channels via hardware
38 * example: 0x20204 one HFC-4S with dtmf detection and 128 timeslots on PCM
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/linux/fs/xfs/libxfs/
H A Dxfs_bmap.c1 // SPDX-License-Identifier: GPL-2.0
3 * Copyright (c) 2000-2006 Silicon Graphics, Inc.
69 * leaf entries, is controlled by the size of the on-disk extent count. in xfs_bmap_compute_maxlevels()
87 minleafrecs = mp->m_bmap_dmnr[0]; in xfs_bmap_compute_maxlevels()
88 minnoderecs = mp->m_bmap_dmnr[1]; in xfs_bmap_compute_maxlevels()
96 mp->m_bm_maxlevels[whichfork] = level; in xfs_bmap_compute_maxlevels()
97 ASSERT(mp->m_bm_maxlevels[whichfork] <= xfs_bmbt_maxlevels_ondisk()); in xfs_bmap_compute_maxlevels()
104 if (mp->m_sb.sb_inodesize == 256) in xfs_bmap_compute_attr_offset()
105 return XFS_LITINO(mp) - xfs_bmdr_space_calc(MINABTPTRS); in xfs_bmap_compute_attr_offset()
115 cur->bc_rec.b = *irec; in xfs_bmbt_lookup_eq()
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