1. 03 Dec, 2021 21 commits
  2. 02 Dec, 2021 5 commits
  3. 01 Dec, 2021 1 commit
    • Lyude Paul's avatar
      drm/i915/dp: Perform 30ms delay after source OUI write · c7c90b0b
      Lyude Paul authored
      While working on supporting the Intel HDR backlight interface, I noticed
      that there's a couple of laptops that will very rarely manage to boot up
      without detecting Intel HDR backlight support - even though it's supported
      on the system. One example of such a laptop is the Lenovo P17 1st
      generation.
      
      Following some investigation Ville Syrjälä did through the docs they have
      available to them, they discovered that there's actually supposed to be a
      30ms wait after writing the source OUI before we begin setting up the rest
      of the backlight interface.
      
      This seems to be correct, as adding this 30ms delay seems to have
      completely fixed the probing issues I was previously seeing. So - let's
      start performing a 30ms wait after writing the OUI, which we do in a manner
      similar to how we keep track of PPS delays (e.g. record the timestamp of
      the OUI write, and then wait for however many ms are left since that
      timestamp right before we interact with the backlight) in order to avoid
      waiting any longer then we need to. As well, this also avoids us performing
      this delay on systems where we don't end up using the HDR backlight
      interface.
      
      V3:
      * Move last_oui_write into intel_dp
      V2:
      * Move panel delays into intel_pps
      Signed-off-by: default avatarLyude Paul <lyude@redhat.com>
      Reviewed-by: default avatarJani Nikula <jani.nikula@intel.com>
      Fixes: 4a8d7990 ("drm/i915/dp: Enable Intel's HDR backlight interface (only SDR for now)")
      Cc: Ville Syrjälä <ville.syrjala@linux.intel.com>
      Cc: <stable@vger.kernel.org> # v5.12+
      Signed-off-by: default avatarJani Nikula <jani.nikula@intel.com>
      Link: https://patchwork.freedesktop.org/patch/msgid/20211130212912.212044-1-lyude@redhat.com
      c7c90b0b
  4. 29 Nov, 2021 1 commit
  5. 24 Nov, 2021 1 commit
  6. 23 Nov, 2021 5 commits
  7. 22 Nov, 2021 2 commits
  8. 21 Nov, 2021 4 commits
    • Linus Torvalds's avatar
      Linux 5.16-rc2 · 13605725
      Linus Torvalds authored
      13605725
    • Linus Torvalds's avatar
      Merge tag 'x86-urgent-2021-11-21' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip · 40c93d7f
      Linus Torvalds authored
      Pull x86 fixes from Thomas Gleixner:
      
       - Move the command line preparation and the early command line parsing
         earlier so that the command line parameters which affect
         early_reserve_memory(), e.g. efi=nosftreserve, are taken into
         account. This was broken when the invocation of
         early_reserve_memory() was moved recently.
      
       - Use an atomic type for the SGX page accounting, which is read and
         written locklessly, to plug various race conditions related to it.
      
      * tag 'x86-urgent-2021-11-21' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
        x86/sgx: Fix free page accounting
        x86/boot: Pull up cmdline preparation and early param parsing
      40c93d7f
    • Linus Torvalds's avatar
      Merge tag 'perf-urgent-2021-11-21' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip · af16bdea
      Linus Torvalds authored
      Pull x86 perf fixes from Thomas Gleixner:
      
       - Remove unneded PEBS disabling when taking LBR snapshots to prevent an
         unchecked MSR access error.
      
       - Fix IIO event constraints for Snowridge and Skylake server chips.
      
      * tag 'perf-urgent-2021-11-21' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
        x86/perf: Fix snapshot_branch_stack warning in VM
        perf/x86/intel/uncore: Fix IIO event constraints for Snowridge
        perf/x86/intel/uncore: Fix IIO event constraints for Skylake Server
        perf/x86/intel/uncore: Fix filter_tid mask for CHA events on Skylake Server
      af16bdea
    • Linus Torvalds's avatar
      Merge tag 'powerpc-5.16-2' of git://git.kernel.org/pub/scm/linux/kernel/git/powerpc/linux · 75603b14
      Linus Torvalds authored
      Pull more powerpc fixes from Michael Ellerman:
      
       - Fix a bug in copying of sigset_t for 32-bit systems, which caused X
         to not start.
      
       - Fix handling of shared LSIs (rare) with the xive interrupt controller
         (Power9/10).
      
       - Fix missing TOC setup in some KVM code, which could result in oopses
         depending on kernel data layout.
      
       - Fix DMA mapping when we have persistent memory and only one DMA
         window available.
      
       - Fix further problems with STRICT_KERNEL_RWX on 8xx, exposed by a
         recent fix.
      
       - A couple of other minor fixes.
      
      Thanks to Alexey Kardashevskiy, Aneesh Kumar K.V, Cédric Le Goater,
      Christian Zigotzky, Christophe Leroy, Daniel Axtens, Finn Thain, Greg
      Kurz, Masahiro Yamada, Nicholas Piggin, and Uwe Kleine-König.
      
      * tag 'powerpc-5.16-2' of git://git.kernel.org/pub/scm/linux/kernel/git/powerpc/linux:
        powerpc/xive: Change IRQ domain to a tree domain
        powerpc/8xx: Fix pinned TLBs with CONFIG_STRICT_KERNEL_RWX
        powerpc/signal32: Fix sigset_t copy
        powerpc/book3e: Fix TLBCAM preset at boot
        powerpc/pseries/ddw: Do not try direct mapping with persistent memory and one window
        powerpc/pseries/ddw: simplify enable_ddw()
        powerpc/pseries/ddw: Revert "Extend upper limit for huge DMA window for persistent memory"
        powerpc/pseries: Fix numa FORM2 parsing fallback code
        powerpc/pseries: rename numa_dist_table to form2_distances
        powerpc: clean vdso32 and vdso64 directories
        powerpc/83xx/mpc8349emitx: Drop unused variable
        KVM: PPC: Book3S HV: Use GLOBAL_TOC for kvmppc_h_set_dabr/xdabr()
      75603b14