| # |
| # Copyright (c) 2017 Linaro Limited |
| # |
| # SPDX-License-Identifier: Apache-2.0 |
| # |
| |
| menuconfig LPD880X_STRIP |
| bool "Enable LPD880x SPI LED strip driver" |
| depends on SPI |
| depends on !SPI_LEGACY_API |
| default n |
| help |
| Enable LED strip driver for daisy chains of LPD880x |
| (LPD8803, LPD8806, or compatible) devices. |
| |
| Each LPD880x LED driver chip has some output channels |
| (3 channels for LPD8803, 6 for LPD8806), whose PWM |
| duty cycle can be set at 7 bit resolution via a |
| reduced SPI interface (MOSI and CLK lines only). |
| Each chip also includes data and clock out pins for |
| daisy chaining LED strips. |
| |
| if LPD880X_STRIP |
| |
| config LPD880X_STRIP_NAME |
| string "Driver name" |
| default "lpd880x_strip" |
| help |
| Device name for LPD880x LED strip. |
| |
| config LPD880X_STRIP_SPI_DEV_NAME |
| string "SPI master to use to drive the strip" |
| default "" |
| help |
| Specify the device name of the SPI master which the |
| LPD880X driver should use to control the LED strip. |
| Examples: SPI_0, SPI_1, etc. |
| |
| config LPD880X_STRIP_SPI_BAUD_RATE |
| int "Strip clock line frequency" |
| default 2000000 |
| help |
| SPI clock rate, in Hz, to use while driving the strip. |
| The recommended maximum is 2 MHz (2000000); the absolute maximum |
| is 20 MHz (20000000). If unsure, accept the default value. |
| |
| endif # LPD880X_STRIP |
