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drivers: led_strip: add ws2812 defaults for nRF5 devices

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Define a SPI baud rate, as well as WS2812_STRIP_ONE_FRAME and
WS2812_STRIP_ZERO_FRAME values, that work for nRF5 devices.

Signed-off-by: Marti Bolivar <marti@opensourcefoundries.com>
This commit is contained in:
Marti Bolivar 2018-02-21 10:28:29 -05:00 committed by Carles Cufí
parent 7cf2ce6751
commit 7439367b2e
1 changed files with 3 additions and 0 deletions
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3
drivers/led_strip/Kconfig.ws2812
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@ -50,6 +50,7 @@ config WS2812_STRIP_SPI_DEV_NAME
config WS2812_STRIP_SPI_BAUD_RATE
int "Baud rate to use to drive LED strip"
default 5250000 if SOC_SERIES_STM32F4X
default 4000000 if SOC_FAMILY_NRF
help
SPI clock rate, in Hz, to use while driving the strip.
The baud rate must be chosen carefully together with the
@ -60,6 +61,7 @@ config WS2812_STRIP_SPI_BAUD_RATE
config WS2812_STRIP_ONE_FRAME
hex "SPI frame to shift out to signal a one bit"
default 0x7c if SOC_SERIES_STM32F4X
default 0x70 if SOC_FAMILY_NRF
help
When shifted out at the configured clock frequency,
this must generate a pulse whose width fits within the chipset
@ -71,6 +73,7 @@ config WS2812_STRIP_ONE_FRAME
config WS2812_STRIP_ZERO_FRAME
hex "SPI frame to shift out to signal a zero bit"
default 0x60 if SOC_SERIES_STM32F4X
default 0x40 if SOC_FAMILY_NRF
help
When shifted out at the configured clock frequency,
this must generate a pulse whose width fits within the chipset