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    SubjectRe: [PATCH 1/5] drm/omap: Fix suspend resume regression after platform data removal
    * Tomi Valkeinen <tomi.valkeinen@ti.com> [200609 15:27]:
    > On 09/06/2020 18:19, Tony Lindgren wrote:
    > > Currently I'm only able to rmmod -f omapdrm, not sure if these issues might
    > > be related.
    >
    > Hmm, I always use modules, and can unload omapdrm and drm fine. But there's
    > a sequence that must be followed. However, the sequence starts with
    > unloading omapdrm... What behavior you see with rmmod?

    Hmm maybe it's output specific somehow?

    I just tried again with the following with v5.7. I see the omapdrm
    usage count issue happen at least on duovero, but don't seem to
    currently get /dev/fb0 initialized on x15 with these:

    modprobe omapdrm
    #modprobe connector_hdmi # up to v5.6
    modprobe display-connector # starting with v5.7-rc1
    modprobe ti-tpd12s015 # beagle-x15
    modprobe omapdss

    # rmmod omapdrm
    rmmod: ERROR: Module omapdrm is in use

    # lsmod | grep omapdrm
    omapdrm 65536 1
    omapdss_base 16384 2 omapdrm,omapdss
    drm_kms_helper 155648 3 omapdss_base,omapdrm,omapdss
    drm 372736 7 ti_tpd12s015,omapdss_base,display_connector,omapdrm,omapdss,drm_kms_helper

    On beagle-x15 I see these errors after modprobe:

    DSS: OMAP DSS rev 6.1
    omapdss_dss 58000000.dss: bound 58001000.dispc (ops dispc_component_ops [omapdss])
    omapdss_dss 58000000.dss: bound 58040000.encoder (ops hdmi5_component_ops [omapdss])
    [drm] Supports vblank timestamp caching Rev 2 (21.10.2013).
    omapdrm omapdrm.0: [drm] Cannot find any crtc or sizes
    [drm] Initialized omapdrm 1.0.0 20110917 for omapdrm.0 on minor 0
    omapdrm omapdrm.0: [drm] Cannot find any crtc or sizes
    aic_dvdd_fixed: disabling
    ldousb: disabling

    Maybe I'm missing some related module on x15?

    Regards,

    Tony

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