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Groups > linux.kernel > #1730763
| From | Linus Walleij <linus.walleij@linaro.org> |
|---|---|
| Newsgroups | linux.kernel |
| Subject | Re: [PATCH v5 11/17] pinctrl: madera: Add driver for Cirrus Logic Madera codecs |
| Date | 2017-09-12 11:20 +0200 |
| Message-ID | <uoPwl-7PF-7@gated-at.bofh.it> (permalink) |
| References | <umIz1-2mH-9@gated-at.bofh.it> <umIz7-2mH-79@gated-at.bofh.it> |
| Organization | linux.* mail to news gateway |
On Wed, Sep 6, 2017 at 3:20 PM, Richard Fitzgerald <rf@opensource.wolfsonmicro.com> wrote: > These codecs have a variable number of I/O lines each of which > is individually selectable to a wide range of possible functions. > > The functionality is slightly different from the traditional muxed > GPIO since most of the functions can be mapped to any pin (and even > the same function to multiple pins). Most pins have a dedicated > "alternate" function that is only available on that pin. The > alternate functions are usually a group of signals, though it is > not always necessary to enable the full group, depending on the > alternate function and how it is to be used. The mapping between > alternate functions and GPIO pins varies between codecs depending > on the number of alternate functions and available pins. > > Note on the Kconfig options: > The formula "default y if..." is used for PINCTRL_MADERA so that its > select options will be processed, allowing us to group selects for > pinctrl into the pinctrl Kconfig where they logically belong instead > of accumulating under the parent MFD Kconfig. > > Signed-off-by: Richard Fitzgerald <rf@opensource.wolfsonmicro.com> > --- > No changes since V4 I think I reviewed this? Did I miss it? Anyways Reviewed-by: Linus Walleij <linus.walleij@linaro.org> Yours, Linus Walleij
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Re: [PATCH v5 11/17] pinctrl: madera: Add driver for Cirrus Logic Madera codecs Linus Walleij <linus.walleij@linaro.org> - 2017-09-12 11:20 +0200
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