[PATCH 1/8] ARM: dts: bcm283x: Define standard pinctrl groups in the gpio node.
Eric Anholt
eric at anholt.net
Fri Sep 9 14:20:57 PDT 2016
e<#secure method=pgpmime mode=sign>
Gerd Hoffmann <kraxel at redhat.com> writes:
> Hi,
>
>> According to this page [1] the pinctrl group for parallel display interface is
>> missing. Is it intended?
>>
>> [1] - http://elinux.org/RPi_BCM2835_GPIOs
>
> Just an oversight I guess. Eric?
>
> Does this look correct?
>
> + dpi_gpio4: dpi_gpio4 {
> + brcm,pins = <4 5 6 7 8 9 10 11 12 13
> + 14 15 16 17 18 19 20 21
> + 22 23 24 25 26 27>;
> + brcm,function = <BCM2835_FSEL_ALT2>;
> + };
For DPI, you also need pins 0-3 in there for clock and syncs.
That set of data pins would be for a 24-bit mode, which is what we
should be using for the Adafruit kippah + 7" panel combo.
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