✓ CI.checkpatch: success for drm/i915: Implement Audio WA_14020863754

Patchwork patchwork at emeril.freedesktop.org
Wed Apr 10 08:11:42 UTC 2024


== Series Details ==

Series: drm/i915: Implement Audio WA_14020863754
URL   : https://patchwork.freedesktop.org/series/132254/
State : success

== Summary ==

+ KERNEL=/kernel
+ git clone https://gitlab.freedesktop.org/drm/maintainer-tools mt
Cloning into 'mt'...
warning: redirecting to https://gitlab.freedesktop.org/drm/maintainer-tools.git/
+ git -C mt rev-list -n1 origin/master
10b531c2aeb176a1a539b4a77216232f97719cec
+ cd /kernel
+ git config --global --add safe.directory /kernel
+ git log -n1
commit 229be6953e12aee7bebb7cec3b61ea9bae2e7510
Author: Uma Shankar <uma.shankar at intel.com>
Date:   Wed Apr 10 13:41:59 2024 +0530

    drm/i915: Implement Audio WA_14020863754
    
    WA_14020863754: Corner case with Min Hblank Fix can cause
    audio hang
    
    Issue: Previously a fix was made to avoid issues with extremely
    small hblanks, called the "Min Hblank Fix". However, this can
    potentially cause an audio hang.
    
    Workaround :
    During "Audio Programming Sequence" Audio Enabling -
    When DP mode is enabled Set mmio offset 0x65F1C bit 18 = 1b,
    before step #1 "Enable audio Presence Detect"
    
    During "Audio Programming Sequence" Audio Disabling -
    When DP mode is enabled Clear mmio offset 0x65F1C bit 18 = 0b,
    after step #6 "Disable Audio PD (Presence Detect)"
    If not clearing PD bit, must also not clear 0x65F1C bit 18 (leave = 1b)
    
    Signed-off-by: Uma Shankar <uma.shankar at intel.com>
+ /mt/dim checkpatch 057ec21a54cddd595a7725fa8731eb4c5bd5abff drm-intel
229be6953e12 drm/i915: Implement Audio WA_14020863754




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