Messages in this thread | | | Subject | Re: [PATCH] ARM: dtc: tegra: enable front panel leds in TrimSlice | From | Tomasz Maciej Nowak <> | Date | Wed, 21 Feb 2018 17:20:14 +0100 |
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W dniu 20.02.2018 o 20:55, Stephen Warren pisze: > On 02/19/2018 01:16 PM, Tomasz Maciej Nowak wrote: >> Adds device nodes for two front panel LEDs. > > Why do you need to change the pinmux settings? Configuring a pin as a > GPIO should override any pinmux special function selection and hence > make it irrelevant, so I don't think you should need to change the pinmux.
At first I did exactly that without changing the pinmux, but the LEDs didn't light up. After that I compared with CompuLab source tree [1]. The pinmux was specified as in my patch. With this change the LEDs are fully functional.
1. https://gitorious.org/trimslice-kernel/trimslice-kernel?p=trimslice-kernel:trimslice-kernel.git;a=blob;f=arch/arm/mach-tegra/board-trimslice-pinmux.c;h=cc6d5225d97eb9327c820bf1d5b2bc16ab8c6dda;hb=d25bf45d6314089489b30d218ed8a0d6d94417f9#l45
-- Tomek
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