Commit Graph

3 Commits

Author SHA1 Message Date
Ulf Magnusson 3ec8dd5744 drivers: led_strip: Kconfig: Remove redundant 'default n' properties
Bool symbols implicitly default to 'n'.

A 'default n' can make sense e.g. in a Kconfig.defconfig file, if you
want to override a 'default y' on the base definition of the symbol. It
isn't used like that on any of these symbols though, and is
inconsistent.

This will make the auto-generated Kconfig documentation have "No
defaults. Implicitly defaults to n." as well, which is clearer than
'default n if ...'

Signed-off-by: Ulf Magnusson <Ulf.Magnusson@nordicsemi.no>
2018-07-03 17:11:31 -04:00
Tomasz Bursztyka ea2431f32f api/spi: Reduce parameter number on transceive function
tx_bufs/tx_count and rx_bufs/rx_count can be hold in another dedicated
structure, thus reducing the number of parameters to transceive. This
permits to avoid using the stack when calling transceive.

Since we saved parameters, we can expose back the struct device pointer,
to stay consistent with other device driver APIs.

Fixes #5839

Signed-off-by: Tomasz Bursztyka <tomasz.bursztyka@linux.intel.com>
2018-04-04 19:02:35 +02:00
Michael Hope 8ee282e319 led_strip: add a APA102 driver.
The APA102 is a RGB LED with integrated controller.  LEDs can be
daisy-chained and use SPI for communication.  The SPI port is
configured via Device Tree.

Tested on the Adafruit Trinket M0.

Signed-off-by: Michael Hope <mlhx@google.com>
2018-02-17 08:53:23 -05:00