1. 07 Jan, 2021 1 commit
  2. 05 Jan, 2021 3 commits
    • Mark Brown's avatar
      Merge series "Add driver for dvfsrc, support for active state of scpsys" from... · f45c522c
      Mark Brown authored
      Merge series "Add driver for dvfsrc, support for active state of scpsys" from Henry Chen <henryc.chen@mediatek.com>:
      
      This series is based on v5.10-rc1.
      
      The patchsets add support for MediaTek hardware module named DVFSRC
      (dynamic voltage and frequency scaling resource collector). The DVFSRC is
      a HW module which is used to collect all the requests from both software
      and hardware and turn into the decision of minimum operating voltage and
      minimum DRAM frequency to fulfill those requests.
      
      So, This series is to implement the dvfsrc driver to collect all the
      requests of operating voltage or DRAM bandwidth from other device drivers
      likes GPU/Camera through 3 frameworks basically:
      
      1. interconnect framework: to aggregate the bandwidth
         requirements from different clients
      
      [1] https://patchwork.kernel.org/cover/10766329/
      
      There has a hw module "DRAM scheduler", which used to control the throughput.
      The DVFSRC will collect forecast data of dram bandwidth from
      SW consumers(camera/gpu...), and according the forecast to change the DRAM
      frequency
      
      2. Regualtor framework: to handle the operating voltage requirement from user or
         cosumer which not belong any power domain
      
      Changes in V6:
      * Remove the performace state support, because the request from consumer can be
      replaced by using interconnect and regulator framework.
      * Update the DT patches and convert them to DT schema. (Georgi)
      * Modify the comment format and coding style. (Mark)
      
      Changes in V5:
      * Support more platform mt6873/mt8192
      * Drop the compatible and interconnect provider node and make the parent node an
      interconnect provider. (Rob/Georgi)
      * Make modification of interconnect driver from coding suggestion. (Georgi)
      * Move interconnect diagram into the commit text of patch. (Georgi)
      * Register the interconnect provider as a platform sub-device. (Georgi)
      
      Changes in V4:
      * Add acked TAG on dt-bindings patches. (Rob)
      * Declaration of emi_icc_aggregate since the prototype of aggregate function
      has changed meanwhile. (Georgi)
      * Used emi_icc_remove instead of icc_provider_del on probe. (Georgi)
      * Add dvfsrc regulator driver into series.
      * Bug fixed of mt8183_get_current_level.
      * Add mutex protection for pstate operation on dvfsrc_set_performance.
      
      Changes in V3:
      * Remove RFC from the subject prefix of the series
      * Combine dt-binding patch and move interconnect dt-binding document into
      dvfsrc. (Rob)
      * Remove unused header, add unit descirption to the bandwidth, rename compatible
      name on interconnect driver. (Georgi)
      * Fixed some coding style: check flow, naming, used readx_poll_timeout
      on dvfsrc driver. (Ryan)
      * Rename interconnect driver mt8183.c to mtk-emi.c
      * Rename interconnect header mtk,mt8183.h to mtk,emi.h
      * mtk-scpsys.c: Add opp table check first to avoid OF runtime parse failed
      
      Changes in RFC V2:
      * Remove the DT property dram_type. (Rob)
      * Used generic dts property 'opp-level' to get the performace state. (Stephen)
      * Remove unecessary dependency config on Kconfig. (Stephen)
      * Remove unused header file, fixed some coding style issue, typo,
      error handling on dvfsrc driver. (Nicolas/Stephen)
      * Remove irq handler on dvfsrc driver. (Stephen)
      * Remove init table on dvfsrc driver, combine hw init on trustzone.
      * Add interconnect support of mt8183 to aggregate the emi bandwidth.
      (Georgi)
      
      V5: https://patchwork.kernel.org/project/linux-mediatek/list/?series=348065
      V4: https://lore.kernel.org/patchwork/cover/1209284/
      V3: https://patchwork.kernel.org/cover/11118867/
      RFC V2: https://lore.kernel.org/patchwork/patch/1068113/
      RFC V1: https://lore.kernel.org/patchwork/cover/1028535/
      _______________________________________________
      linux-arm-kernel mailing list
      linux-arm-kernel@lists.infradead.org
      http://lists.infradead.org/mailman/listinfo/linux-arm-kernel
      f45c522c
    • Matti Vaittinen's avatar
      regulator: ROHM bd7xxxx: Do not depend on parent driver data · 3c14dbd4
      Matti Vaittinen authored
      The ROHM PMIC regulator drivers only need the regmap pointer from
      the parent device. Regmap can be obtained via dev_get_regmap()
      so do not require parent to populate driver data for that.
      Signed-off-by: default avatarMatti Vaittinen <matti.vaittinen@fi.rohmeurope.com>
      Link: https://lore.kernel.org/r/20210105130221.GA3438042@localhost.localdomainSigned-off-by: default avatarMark Brown <broonie@kernel.org>
      3c14dbd4
    • henryc.chen's avatar
      regulator: Regulator driver for the Mediatek DVFSRC · a0db6b0a
      henryc.chen authored
      Driver for regulators exposed by the DVFSRC (dynamic voltage and
      frequency scaling resource collector) found in devices based on
      mt8183 and newer platforms.
      Signed-off-by: default avatarHenry Chen <henryc.chen@mediatek.com>
      Link: https://lore.kernel.org/r/1608790134-27425-12-git-send-email-henryc.chen@mediatek.comSigned-off-by: default avatarMark Brown <broonie@kernel.org>
      a0db6b0a
  3. 04 Jan, 2021 9 commits
  4. 30 Dec, 2020 1 commit
  5. 28 Dec, 2020 6 commits
  6. 27 Dec, 2020 8 commits
  7. 26 Dec, 2020 5 commits
  8. 25 Dec, 2020 5 commits
    • Linus Torvalds's avatar
      drm/amd/display: avoid uninitialized variable warning · 61d79136
      Linus Torvalds authored
      clang (quite rightly) complains fairly loudly about the newly added
      mpc1_get_mpc_out_mux() function returning an uninitialized value if the
      'opp_id' checks don't pass.
      
      This may not happen in practice, but the code really shouldn't return
      garbage if the sanity checks don't pass.
      
      So just initialize 'val' to zero to avoid the issue.
      
      Fixes: 110b055b ("drm/amd/display: add getter routine to retrieve mpcc mux")
      Cc: Josip Pavic <Josip.Pavic@amd.com>
      Cc: Bindu Ramamurthy <bindu.r@amd.com>
      Cc: Alex Deucher <alexander.deucher@amd.com>
      Signed-off-by: default avatarLinus Torvalds <torvalds@linux-foundation.org>
      61d79136
    • Linus Torvalds's avatar
      Merge tag 'perf-tools-2020-12-24' of git://git.kernel.org/pub/scm/linux/kernel/git/acme/linux · 5814bc2d
      Linus Torvalds authored
      Pull more perf tools updates from Arnaldo Carvalho de Melo:
      
       - Refactor 'perf stat' per CPU/socket/die/thread aggregation fixing use
         cases in ARM machines.
      
       - Fix memory leak when synthesizing SDT probes in 'perf probe'.
      
       - Update kernel header copies related to KVM, epol_pwait. msr-index and
         powerpc and s390 syscall tables.
      
      * tag 'perf-tools-2020-12-24' of git://git.kernel.org/pub/scm/linux/kernel/git/acme/linux: (24 commits)
        perf probe: Fix memory leak when synthesizing SDT probes
        perf stat aggregation: Add separate thread member
        perf stat aggregation: Add separate core member
        perf stat aggregation: Add separate die member
        perf stat aggregation: Add separate socket member
        perf stat aggregation: Add separate node member
        perf stat aggregation: Start using cpu_aggr_id in map
        perf cpumap: Drop in cpu_aggr_map struct
        perf cpumap: Add new map type for aggregation
        perf stat: Replace aggregation ID with a struct
        perf cpumap: Add new struct for cpu aggregation
        perf cpumap: Use existing allocator to avoid using malloc
        perf tests: Improve topology test to check all aggregation types
        perf tools: Update s390's syscall.tbl copy from the kernel sources
        perf tools: Update powerpc's syscall.tbl copy from the kernel sources
        perf s390: Move syscall.tbl check into check-headers.sh
        perf powerpc: Move syscall.tbl check to check-headers.sh
        tools headers UAPI: Synch KVM's svm.h header with the kernel
        tools kvm headers: Update KVM headers from the kernel sources
        tools headers UAPI: Sync KVM's vmx.h header with the kernel sources
        ...
      5814bc2d
    • Linus Torvalds's avatar
      Merge branch 'for-5.11' of git://git.kernel.org/pub/scm/linux/kernel/git/jlawall/linux · 42dc45e8
      Linus Torvalds authored
      Pull coccinelle updates from Julia Lawall.
      
      * 'for-5.11' of git://git.kernel.org/pub/scm/linux/kernel/git/jlawall/linux:
        scripts: coccicheck: Correct usage of make coccicheck
        coccinelle: update expiring email addresses
        coccinnelle: Remove ptr_ret script
        kbuild: do not use scripts/ld-version.sh for checking spatch version
        remove boolinit.cocci
      42dc45e8
    • Michael Ellerman's avatar
      genirq: Fix export of irq_to_desc() for powerpc KVM · 11cc92eb
      Michael Ellerman authored
      Commit 64a1b95b ("genirq: Restrict export of irq_to_desc()") removed
      the export of irq_to_desc() unless powerpc KVM is being built, because
      there is still a use of irq_to_desc() in modular code there.
      
      However it used:
      
        #ifdef CONFIG_KVM_BOOK3S_64_HV
      
      Which doesn't work when that symbol is =m, leading to a build failure:
      
        ERROR: modpost: "irq_to_desc" [arch/powerpc/kvm/kvm-hv.ko] undefined!
      
      Fix it by checking for the definedness of the correct symbol which is
      CONFIG_KVM_BOOK3S_64_HV_MODULE.
      
      Fixes: 64a1b95b ("genirq: Restrict export of irq_to_desc()")
      Signed-off-by: default avatarMichael Ellerman <mpe@ellerman.id.au>
      Signed-off-by: default avatarLinus Torvalds <torvalds@linux-foundation.org>
      11cc92eb
    • Linus Torvalds's avatar
      Merge branch 'work.misc' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs · 7bb5226c
      Linus Torvalds authored
      Pull misc vfs updates from Al Viro:
       "Assorted patches from previous cycle(s)..."
      
      * 'work.misc' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs:
        fix hostfs_open() use of ->f_path.dentry
        Make sure that make_create_in_sticky() never sees uninitialized value of dir_mode
        fs: Kill DCACHE_DONTCACHE dentry even if DCACHE_REFERENCED is set
        fs: Handle I_DONTCACHE in iput_final() instead of generic_drop_inode()
        fs/namespace.c: WARN if mnt_count has become negative
      7bb5226c
  9. 24 Dec, 2020 2 commits
    • Linus Torvalds's avatar
      Merge tag 'docs-5.11-2' of git://git.lwn.net/linux · 71c5f031
      Linus Torvalds authored
      Pull documentation fixes from Jonathan Corbet:
       "A small set of late-arriving, small documentation fixes"
      
      * tag 'docs-5.11-2' of git://git.lwn.net/linux:
        docs: admin-guide: Fix default value of max_map_count in sysctl/vm.rst
        Documentation/submitting-patches: Document the SoB chain
        Documentation: process: Correct numbering
        docs: submitting-patches: Trivial - fix grammatical error
      71c5f031
    • Linus Torvalds's avatar
      Merge tag 'ext4_for_linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tytso/ext4 · 555a6e8c
      Linus Torvalds authored
      Pull ext4 updates from Ted Ts'o:
       "Various bug fixes and cleanups for ext4; no new features this cycle"
      
      * tag 'ext4_for_linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tytso/ext4: (29 commits)
        ext4: remove unnecessary wbc parameter from ext4_bio_write_page
        ext4: avoid s_mb_prefetch to be zero in individual scenarios
        ext4: defer saving error info from atomic context
        ext4: simplify ext4 error translation
        ext4: move functions in super.c
        ext4: make ext4_abort() use __ext4_error()
        ext4: standardize error message in ext4_protect_reserved_inode()
        ext4: remove redundant sb checksum recomputation
        ext4: don't remount read-only with errors=continue on reboot
        ext4: fix deadlock with fs freezing and EA inodes
        jbd2: add a helper to find out number of fast commit blocks
        ext4: make fast_commit.h byte identical with e2fsprogs/fast_commit.h
        ext4: fix fall-through warnings for Clang
        ext4: add docs about fast commit idempotence
        ext4: remove the unused EXT4_CURRENT_REV macro
        ext4: fix an IS_ERR() vs NULL check
        ext4: check for invalid block size early when mounting a file system
        ext4: fix a memory leak of ext4_free_data
        ext4: delete nonsensical (commented-out) code inside ext4_xattr_block_set()
        ext4: update ext4_data_block_valid related comments
        ...
      555a6e8c