Re: [PATCH] leds: tlc591xx: SW reset during initialization

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On pátek 24. srpna 2018 21:50:00 CEST, Pavel Machek wrote:
I'd say this is "ti,our-hw-designers-forgot-to-connect-reset-line",
and I see nothing OS specific about that...

Actually, our board first resets the chip, and then U-Boot uses some LEDs as status indicators to show progress of various stages of booting. That sounds like a useful design to me, but it ends up with Linux claiming that all LEDs are dim even though some channels are HW-blinking.

That's why I think that the chip should be always reset by the kernel. Alternatively, all registers would have to be explicitly initialized so that kernel's idea and reality match again.

With kind regards,
Jan




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