{"api_version":"1","generated_at":"2026-08-02T11:06:26+00:00","cve":"CVE-2025-40317","urls":{"html":"https://cve.report/CVE-2025-40317","api":"https://cve.report/api/cve/CVE-2025-40317.json","docs":"https://cve.report/api","cve_org":"https://www.cve.org/CVERecord?id=CVE-2025-40317","nvd":"https://nvd.nist.gov/vuln/detail/CVE-2025-40317"},"summary":{"title":"regmap: slimbus: fix bus_context pointer in regmap init calls","description":"In the Linux kernel, the following vulnerability has been resolved:\n\nregmap: slimbus: fix bus_context pointer in regmap init calls\n\nCommit 4e65bda8273c (\"ASoC: wcd934x: fix error handling in\nwcd934x_codec_parse_data()\") revealed the problem in the slimbus regmap.\nThat commit breaks audio playback, for instance, on sdm845 Thundercomm\nDragonboard 845c board:\n\n Unable to handle kernel paging request at virtual address ffff8000847cbad4\n ...\n CPU: 5 UID: 0 PID: 776 Comm: aplay Not tainted 6.18.0-rc1-00028-g7ea30958b305 #11 PREEMPT\n Hardware name: Thundercomm Dragonboard 845c (DT)\n ...\n Call trace:\n  slim_xfer_msg+0x24/0x1ac [slimbus] (P)\n  slim_read+0x48/0x74 [slimbus]\n  regmap_slimbus_read+0x18/0x24 [regmap_slimbus]\n  _regmap_raw_read+0xe8/0x174\n  _regmap_bus_read+0x44/0x80\n  _regmap_read+0x60/0xd8\n  _regmap_update_bits+0xf4/0x140\n  _regmap_select_page+0xa8/0x124\n  _regmap_raw_write_impl+0x3b8/0x65c\n  _regmap_bus_raw_write+0x60/0x80\n  _regmap_write+0x58/0xc0\n  regmap_write+0x4c/0x80\n  wcd934x_hw_params+0x494/0x8b8 [snd_soc_wcd934x]\n  snd_soc_dai_hw_params+0x3c/0x7c [snd_soc_core]\n  __soc_pcm_hw_params+0x22c/0x634 [snd_soc_core]\n  dpcm_be_dai_hw_params+0x1d4/0x38c [snd_soc_core]\n  dpcm_fe_dai_hw_params+0x9c/0x17c [snd_soc_core]\n  snd_pcm_hw_params+0x124/0x464 [snd_pcm]\n  snd_pcm_common_ioctl+0x110c/0x1820 [snd_pcm]\n  snd_pcm_ioctl+0x34/0x4c [snd_pcm]\n  __arm64_sys_ioctl+0xac/0x104\n  invoke_syscall+0x48/0x104\n  el0_svc_common.constprop.0+0x40/0xe0\n  do_el0_svc+0x1c/0x28\n  el0_svc+0x34/0xec\n  el0t_64_sync_handler+0xa0/0xf0\n  el0t_64_sync+0x198/0x19c\n\nThe __devm_regmap_init_slimbus() started to be used instead of\n__regmap_init_slimbus() after the commit mentioned above and turns out\nthe incorrect bus_context pointer (3rd argument) was used in\n__devm_regmap_init_slimbus(). It should be just \"slimbus\" (which is equal\nto &slimbus->dev). Correct it. The wcd934x codec seems to be the only or\nthe first user of devm_regmap_init_slimbus() but we should fix it till\nthe point where __devm_regmap_init_slimbus() was introduced therefore\ntwo \"Fixes\" tags.\n\nWhile at this, also correct the same argument in __regmap_init_slimbus().","state":"PUBLISHED","assigner":"Linux","published_at":"2025-12-08 01:16:04","updated_at":"2026-07-30 06:24:28"},"problem_types":[],"metrics":[{"version":"3.1","source":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","type":"Secondary","score":"7.8","severity":"HIGH","vector":"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H","data":{"version":"3.1","vectorString":"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H","baseScore":7.8,"baseSeverity":"HIGH","attackVector":"LOCAL","attackComplexity":"LOW","privilegesRequired":"LOW","userInteraction":"NONE","scope":"UNCHANGED","confidentialityImpact":"HIGH","integrityImpact":"HIGH","availabilityImpact":"HIGH"}},{"version":"3.1","source":"CNA","type":"DECLARED","score":"7.8","severity":"HIGH","vector":"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H","data":{"baseScore":7.8,"baseSeverity":"HIGH","vectorString":"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H","version":"3.1"}}],"references":[{"url":"https://git.kernel.org/stable/c/c0f05129e5734ff3fd14b2c242709314d9ca5433","name":"https://git.kernel.org/stable/c/c0f05129e5734ff3fd14b2c242709314d9ca5433","refsource":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","tags":[],"title":"","mime":"","httpstatus":"","archivestatus":"0"},{"url":"https://git.kernel.org/stable/c/2664bfd8969d1c43dcbe3ea313f130dfa6b74f4c","name":"https://git.kernel.org/stable/c/2664bfd8969d1c43dcbe3ea313f130dfa6b74f4c","refsource":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","tags":[],"title":"","mime":"","httpstatus":"","archivestatus":"0"},{"url":"https://git.kernel.org/stable/c/434f7349a1f00618a620b316f091bd13a12bc8d2","name":"https://git.kernel.org/stable/c/434f7349a1f00618a620b316f091bd13a12bc8d2","refsource":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","tags":[],"title":"","mime":"","httpstatus":"","archivestatus":"0"},{"url":"https://git.kernel.org/stable/c/02d3041caaa3fe4dd69e5a8afd1ac6b918ddc6a1","name":"https://git.kernel.org/stable/c/02d3041caaa3fe4dd69e5a8afd1ac6b918ddc6a1","refsource":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","tags":[],"title":"","mime":"","httpstatus":"","archivestatus":"0"},{"url":"https://git.kernel.org/stable/c/a16e92f8d7dc7371e68f17a9926cb92d2244be7b","name":"https://git.kernel.org/stable/c/a16e92f8d7dc7371e68f17a9926cb92d2244be7b","refsource":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","tags":[],"title":"","mime":"","httpstatus":"","archivestatus":"0"},{"url":"https://git.kernel.org/stable/c/8143e4075d131c528540417a51966f6697be14eb","name":"https://git.kernel.org/stable/c/8143e4075d131c528540417a51966f6697be14eb","refsource":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","tags":[],"title":"","mime":"","httpstatus":"","archivestatus":"0"},{"url":"https://git.kernel.org/stable/c/d979639f099c6e51f06ce4dd8d8e56364d6c17ba","name":"https://git.kernel.org/stable/c/d979639f099c6e51f06ce4dd8d8e56364d6c17ba","refsource":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","tags":[],"title":"","mime":"","httpstatus":"","archivestatus":"0"},{"url":"https://git.kernel.org/stable/c/b65f3303349eaee333e47d2a99045aa12fa0c3a7","name":"https://git.kernel.org/stable/c/b65f3303349eaee333e47d2a99045aa12fa0c3a7","refsource":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","tags":[],"title":"","mime":"","httpstatus":"","archivestatus":"0"},{"url":"https://www.cve.org/CVERecord?id=CVE-2025-40317","name":"CVE Program record","refsource":"CVE.ORG","tags":["canonical"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2025-40317","name":"NVD vulnerability detail","refsource":"NVD","tags":["canonical","analysis"]}],"affected":[{"source":"CNA","vendor":"Linux","product":"Linux","version":"affected 7d6f7fb053ad543da74119df3c4cd7bb46220471 c0f05129e5734ff3fd14b2c242709314d9ca5433 git","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"affected 7d6f7fb053ad543da74119df3c4cd7bb46220471 02d3041caaa3fe4dd69e5a8afd1ac6b918ddc6a1 git","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"affected 7d6f7fb053ad543da74119df3c4cd7bb46220471 d979639f099c6e51f06ce4dd8d8e56364d6c17ba git","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"affected 7d6f7fb053ad543da74119df3c4cd7bb46220471 8143e4075d131c528540417a51966f6697be14eb git","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"affected 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semver","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"unaffected 5.10.247 5.10.* semver","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"unaffected 5.15.197 5.15.* semver","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"unaffected 6.1.159 6.1.* semver","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"unaffected 6.6.117 6.6.* semver","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"unaffected 6.12.58 6.12.* semver","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"unaffected 6.17.8 6.17.* semver","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"unaffected 6.18 * original_commit_for_fix","platforms":[]}],"timeline":[],"solutions":[],"workarounds":[],"exploits":[],"credits":[],"nvd_cpes":[],"vendor_comments":[],"enrichments":{"kev":null,"epss":{"cve_year":"2025","cve_id":"40317","cve":"CVE-2025-40317","epss":"0.001280000","percentile":"0.028300000","score_date":"2026-07-31","updated_at":"2026-08-01 00:10:35"},"legacy_qids":[]},"source_records":{"cve_program":{"containers":{"cna":{"affected":[{"defaultStatus":"unaffected","product":"Linux","programFiles":["drivers/base/regmap/regmap-slimbus.c"],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","vendor":"Linux","versions":[{"lessThan":"c0f05129e5734ff3fd14b2c242709314d9ca5433","status":"affected","version":"7d6f7fb053ad543da74119df3c4cd7bb46220471","versionType":"git"},{"lessThan":"02d3041caaa3fe4dd69e5a8afd1ac6b918ddc6a1","status":"affected","version":"7d6f7fb053ad543da74119df3c4cd7bb46220471","versionType":"git"},{"lessThan":"d979639f099c6e51f06ce4dd8d8e56364d6c17ba","status":"affected","version":"7d6f7fb053ad543da74119df3c4cd7bb46220471","versionType":"git"},{"lessThan":"8143e4075d131c528540417a51966f6697be14eb","status":"affected","version":"7d6f7fb053ad543da74119df3c4cd7bb46220471","versionType":"git"},{"lessThan":"2664bfd8969d1c43dcbe3ea313f130dfa6b74f4c","status":"affected","version":"7d6f7fb053ad543da74119df3c4cd7bb46220471","versionType":"git"},{"lessThan":"a16e92f8d7dc7371e68f17a9926cb92d2244be7b","status":"affected","version":"7d6f7fb053ad543da74119df3c4cd7bb46220471","versionType":"git"},{"lessThan":"b65f3303349eaee333e47d2a99045aa12fa0c3a7","status":"affected","version":"7d6f7fb053ad543da74119df3c4cd7bb46220471","versionType":"git"},{"lessThan":"434f7349a1f00618a620b316f091bd13a12bc8d2","status":"affected","version":"7d6f7fb053ad543da74119df3c4cd7bb46220471","versionType":"git"}]},{"defaultStatus":"affected","product":"Linux","programFiles":["drivers/base/regmap/regmap-slimbus.c"],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","vendor":"Linux","versions":[{"status":"affected","version":"4.16"},{"lessThan":"4.16","status":"unaffected","version":"0","versionType":"semver"},{"lessThanOrEqual":"5.4.*","status":"unaffected","version":"5.4.302","versionType":"semver"},{"lessThanOrEqual":"5.10.*","status":"unaffected","version":"5.10.247","versionType":"semver"},{"lessThanOrEqual":"5.15.*","status":"unaffected","version":"5.15.197","versionType":"semver"},{"lessThanOrEqual":"6.1.*","status":"unaffected","version":"6.1.159","versionType":"semver"},{"lessThanOrEqual":"6.6.*","status":"unaffected","version":"6.6.117","versionType":"semver"},{"lessThanOrEqual":"6.12.*","status":"unaffected","version":"6.12.58","versionType":"semver"},{"lessThanOrEqual":"6.17.*","status":"unaffected","version":"6.17.8","versionType":"semver"},{"lessThanOrEqual":"*","status":"unaffected","version":"6.18","versionType":"original_commit_for_fix"}]}],"cpeApplicability":[{"nodes":[{"cpeMatch":[{"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionEndExcluding":"5.4.302","versionStartIncluding":"4.16","vulnerable":true},{"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionEndExcluding":"5.10.247","versionStartIncluding":"4.16","vulnerable":true},{"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionEndExcluding":"5.15.197","versionStartIncluding":"4.16","vulnerable":true},{"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionEndExcluding":"6.1.159","versionStartIncluding":"4.16","vulnerable":true},{"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionEndExcluding":"6.6.117","versionStartIncluding":"4.16","vulnerable":true},{"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionEndExcluding":"6.12.58","versionStartIncluding":"4.16","vulnerable":true},{"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionEndExcluding":"6.17.8","versionStartIncluding":"4.16","vulnerable":true},{"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionEndExcluding":"6.18","versionStartIncluding":"4.16","vulnerable":true}],"negate":false,"operator":"OR"}]}],"descriptions":[{"lang":"en","value":"In the Linux kernel, the following vulnerability has been resolved:\n\nregmap: slimbus: fix bus_context pointer in regmap init calls\n\nCommit 4e65bda8273c (\"ASoC: wcd934x: fix error handling in\nwcd934x_codec_parse_data()\") revealed the problem in the slimbus regmap.\nThat commit breaks audio playback, for instance, on sdm845 Thundercomm\nDragonboard 845c board:\n\n Unable to handle kernel paging request at virtual address ffff8000847cbad4\n ...\n CPU: 5 UID: 0 PID: 776 Comm: aplay Not tainted 6.18.0-rc1-00028-g7ea30958b305 #11 PREEMPT\n Hardware name: Thundercomm Dragonboard 845c (DT)\n ...\n Call trace:\n  slim_xfer_msg+0x24/0x1ac [slimbus] (P)\n  slim_read+0x48/0x74 [slimbus]\n  regmap_slimbus_read+0x18/0x24 [regmap_slimbus]\n  _regmap_raw_read+0xe8/0x174\n  _regmap_bus_read+0x44/0x80\n  _regmap_read+0x60/0xd8\n  _regmap_update_bits+0xf4/0x140\n  _regmap_select_page+0xa8/0x124\n  _regmap_raw_write_impl+0x3b8/0x65c\n  _regmap_bus_raw_write+0x60/0x80\n  _regmap_write+0x58/0xc0\n  regmap_write+0x4c/0x80\n  wcd934x_hw_params+0x494/0x8b8 [snd_soc_wcd934x]\n  snd_soc_dai_hw_params+0x3c/0x7c [snd_soc_core]\n  __soc_pcm_hw_params+0x22c/0x634 [snd_soc_core]\n  dpcm_be_dai_hw_params+0x1d4/0x38c [snd_soc_core]\n  dpcm_fe_dai_hw_params+0x9c/0x17c [snd_soc_core]\n  snd_pcm_hw_params+0x124/0x464 [snd_pcm]\n  snd_pcm_common_ioctl+0x110c/0x1820 [snd_pcm]\n  snd_pcm_ioctl+0x34/0x4c [snd_pcm]\n  __arm64_sys_ioctl+0xac/0x104\n  invoke_syscall+0x48/0x104\n  el0_svc_common.constprop.0+0x40/0xe0\n  do_el0_svc+0x1c/0x28\n  el0_svc+0x34/0xec\n  el0t_64_sync_handler+0xa0/0xf0\n  el0t_64_sync+0x198/0x19c\n\nThe __devm_regmap_init_slimbus() started to be used instead of\n__regmap_init_slimbus() after the commit mentioned above and turns out\nthe incorrect bus_context pointer (3rd argument) was used in\n__devm_regmap_init_slimbus(). It should be just \"slimbus\" (which is equal\nto &slimbus->dev). Correct it. The wcd934x codec seems to be the only or\nthe first user of devm_regmap_init_slimbus() but we should fix it till\nthe point where __devm_regmap_init_slimbus() was introduced therefore\ntwo \"Fixes\" tags.\n\nWhile at this, also correct the same argument in __regmap_init_slimbus()."}],"metrics":[{"cvssV3_1":{"baseScore":7.8,"baseSeverity":"HIGH","vectorString":"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H","version":"3.1"}}],"providerMetadata":{"dateUpdated":"2026-07-30T06:02:43.650Z","orgId":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","shortName":"Linux"},"references":[{"url":"https://git.kernel.org/stable/c/c0f05129e5734ff3fd14b2c242709314d9ca5433"},{"url":"https://git.kernel.org/stable/c/02d3041caaa3fe4dd69e5a8afd1ac6b918ddc6a1"},{"url":"https://git.kernel.org/stable/c/d979639f099c6e51f06ce4dd8d8e56364d6c17ba"},{"url":"https://git.kernel.org/stable/c/8143e4075d131c528540417a51966f6697be14eb"},{"url":"https://git.kernel.org/stable/c/2664bfd8969d1c43dcbe3ea313f130dfa6b74f4c"},{"url":"https://git.kernel.org/stable/c/a16e92f8d7dc7371e68f17a9926cb92d2244be7b"},{"url":"https://git.kernel.org/stable/c/b65f3303349eaee333e47d2a99045aa12fa0c3a7"},{"url":"https://git.kernel.org/stable/c/434f7349a1f00618a620b316f091bd13a12bc8d2"}],"title":"regmap: slimbus: fix bus_context pointer in regmap init calls","x_generator":{"engine":"bippy-1.2.0"}}},"cveMetadata":{"assignerOrgId":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","assignerShortName":"Linux","cveId":"CVE-2025-40317","datePublished":"2025-12-08T00:46:44.287Z","dateReserved":"2025-04-16T07:20:57.186Z","dateUpdated":"2026-07-30T06:02:43.650Z","state":"PUBLISHED"},"dataType":"CVE_RECORD","dataVersion":"5.2"},"nvd":{"publishedDate":"2025-12-08 01:16:04","lastModifiedDate":"2026-07-30 06:24:28","problem_types":[],"metrics":{"cvssMetricV31":[{"source":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","type":"Secondary","cvssData":{"version":"3.1","vectorString":"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H","baseScore":7.8,"baseSeverity":"HIGH","attackVector":"LOCAL","attackComplexity":"LOW","privilegesRequired":"LOW","userInteraction":"NONE","scope":"UNCHANGED","confidentialityImpact":"HIGH","integrityImpact":"HIGH","availabilityImpact":"HIGH"},"exploitabilityScore":1.8,"impactScore":5.9}]},"configurations":[]},"legacy_mitre":{"record":{"CveYear":"2025","CveId":"40317","Ordinal":"1","Title":"regmap: slimbus: fix bus_context pointer in regmap init calls","CVE":"CVE-2025-40317","Year":"2025"},"notes":[{"CveYear":"2025","CveId":"40317","Ordinal":"1","NoteData":"In the Linux kernel, the following vulnerability has been resolved:\n\nregmap: slimbus: fix bus_context pointer in regmap init calls\n\nCommit 4e65bda8273c (\"ASoC: wcd934x: fix error handling in\nwcd934x_codec_parse_data()\") revealed the problem in the slimbus regmap.\nThat commit breaks audio playback, for instance, on sdm845 Thundercomm\nDragonboard 845c board:\n\n Unable to handle kernel paging request at virtual address ffff8000847cbad4\n ...\n CPU: 5 UID: 0 PID: 776 Comm: aplay Not tainted 6.18.0-rc1-00028-g7ea30958b305 #11 PREEMPT\n Hardware name: Thundercomm Dragonboard 845c (DT)\n ...\n Call trace:\n  slim_xfer_msg+0x24/0x1ac [slimbus] (P)\n  slim_read+0x48/0x74 [slimbus]\n  regmap_slimbus_read+0x18/0x24 [regmap_slimbus]\n  _regmap_raw_read+0xe8/0x174\n  _regmap_bus_read+0x44/0x80\n  _regmap_read+0x60/0xd8\n  _regmap_update_bits+0xf4/0x140\n  _regmap_select_page+0xa8/0x124\n  _regmap_raw_write_impl+0x3b8/0x65c\n  _regmap_bus_raw_write+0x60/0x80\n  _regmap_write+0x58/0xc0\n  regmap_write+0x4c/0x80\n  wcd934x_hw_params+0x494/0x8b8 [snd_soc_wcd934x]\n  snd_soc_dai_hw_params+0x3c/0x7c [snd_soc_core]\n  __soc_pcm_hw_params+0x22c/0x634 [snd_soc_core]\n  dpcm_be_dai_hw_params+0x1d4/0x38c [snd_soc_core]\n  dpcm_fe_dai_hw_params+0x9c/0x17c [snd_soc_core]\n  snd_pcm_hw_params+0x124/0x464 [snd_pcm]\n  snd_pcm_common_ioctl+0x110c/0x1820 [snd_pcm]\n  snd_pcm_ioctl+0x34/0x4c [snd_pcm]\n  __arm64_sys_ioctl+0xac/0x104\n  invoke_syscall+0x48/0x104\n  el0_svc_common.constprop.0+0x40/0xe0\n  do_el0_svc+0x1c/0x28\n  el0_svc+0x34/0xec\n  el0t_64_sync_handler+0xa0/0xf0\n  el0t_64_sync+0x198/0x19c\n\nThe __devm_regmap_init_slimbus() started to be used instead of\n__regmap_init_slimbus() after the commit mentioned above and turns out\nthe incorrect bus_context pointer (3rd argument) was used in\n__devm_regmap_init_slimbus(). It should be just \"slimbus\" (which is equal\nto &slimbus->dev). Correct it. The wcd934x codec seems to be the only or\nthe first user of devm_regmap_init_slimbus() but we should fix it till\nthe point where __devm_regmap_init_slimbus() was introduced therefore\ntwo \"Fixes\" tags.\n\nWhile at this, also correct the same argument in __regmap_init_slimbus().","Type":"Description","Title":"regmap: slimbus: fix bus_context pointer in regmap init calls"}]}}}