Messages in this thread | | | From | Adam Ford <> | Date | Wed, 15 Jan 2020 14:25:59 -0600 | Subject | Using Pull-up resistors on gpio-pca953x expander |
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The pca953x can support pull-up resistors, and I have a pcal6416 that I'd like to enable them.
Ideally, I was hoping there would be a way to add enable to the device tree, because the expander is connected to some buttons which are grounded when pressed. Without pull-up resistors enabled, the buttons always appear to be pressed.
Is there some way to enable them? I see the functionality is available and called through gc->set_config = pca953x_gpio_set_config;
I don't know enough about the API to know how to enable this. Can someone give me some pointers?
Would you entertain my adding some device tree hooks to enable them?
adam
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