[Bug 96571] [CHV] Backlight init fails on Surface 3 if module load order is wrong

[bugzilla-daemon at freedesktop.org]

https://bugs.freedesktop.org/show_bug.cgi?id=96571

--- Comment #22 from viric at viric.name ---
Created attachment 125015
  --> https://bugs.freedesktop.org/attachment.cgi?id=125015&action=edit
Fix the device name of pwm-lpss so the pwm lookup table is correct

Right, changing the device name, I got light in my screen and text showed up. I
attach the patch.

Nevertheless, when the fb0 gets enabled, my screen goes black. With backlight,
but black. This is what I get in dmesg:

[   23.524933] Console: switching to colour frame buffer device 100x80
[   23.535952] i915 0000:00:02.0: fb0: inteldrmfb frame buffer device
[   23.622751] sst-mfld-platform sst-mfld-platform: Slot control: codec_out tx
interleaver slot 0 doesn't have DAPM widget!!!
[   23.622908] sst-mfld-platform sst-mfld-platform: Slot control: codec_out tx
interleaver slot 1 doesn't have DAPM widget!!!
[   23.623053] sst-mfld-platform sst-mfld-platform: Slot control: codec_out tx
interleaver slot 2 doesn't have DAPM widget!!!
[   23.623201] sst-mfld-platform sst-mfld-platform: Slot control: codec_out tx
interleaver slot 3 doesn't have DAPM widget!!!
[   23.623341] sst-mfld-platform sst-mfld-platform: Slot control: codec_in rx
deinterleaver codec_in0_0 doesn't have DAPM widget!!!
[   23.623743] sst-mfld-platform sst-mfld-platform: Slot control: codec_in rx
deinterleaver codec_in0_1 doesn't have DAPM widget!!!
[   23.623897] sst-mfld-platform sst-mfld-platform: Slot control: codec_in rx
deinterleaver codec_in1_0 doesn't have DAPM widget!!!
[   23.624051] sst-mfld-platform sst-mfld-platform: Slot control: codec_in rx
deinterleaver codec_in1_1 doesn't have DAPM widget!!!

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