Re: [PATCH v2 2/4] dt-bindings: auxdisplay: Add bindings for generic 7 segment LED
From: Andy Shevchenko <hidden>
Date: 2024-02-29 10:42:57
Also in:
linux-devicetree, linux-leds, lkml
On Thu, Feb 29, 2024 at 10:23:15AM +0100, Geert Uytterhoeven wrote:
On Wed, Feb 28, 2024 at 3:58 PM Andy Shevchenko [off-list ref] wrote:quoted
On Wed, Feb 28, 2024 at 4:04 PM Rob Herring [off-list ref] wrote:quoted
On Wed, Feb 28, 2024 at 10:22:42AM +1300, Chris Packham wrote:
...
quoted
quoted
quoted
+ segment-gpios: + description: + An array of GPIOs one per segment. + minItems: 7How does one know which GPIO is which segment?I believe we need just to agree on this. Since anybody can shuffle GPIOs in the DT, there is no need to support arbitrary orders. And naturally 'a' is bit 0, 'g' is bit 6, 'dp' bit 7 if present.Note that there are no bits involved at this level, only GPIO specifiers.
Right, I meant the sequence in the array of GPIOs in the DT. I implied that it maps 1:1 to the real bits in HW (in some cases). -- With Best Regards, Andy Shevchenko _______________________________________________ linux-arm-kernel mailing list linux-arm-kernel@lists.infradead.org http://lists.infradead.org/mailman/listinfo/linux-arm-kernel