I needed led operation for this mfd chip, so I added a very simple driver for this. My platform (arm imx6q) is devicetree-based, so I added optional devicetree support for this chip and its sub-drivers. Interestingly, the main mfd driver had a dt 'compatible' binding, but could not operate without platform data? Sven Van Asbroeck (4): tps6105x: add optional devicetree support regulator: tps6105x: add optional devicetree support leds: tps6105x: add driver for mfd chip led mode dt-bindings: mfd: update TI tps6105x chip bindings .../devicetree/bindings/mfd/tps6105x.txt | 32 ++++++++- drivers/leds/Kconfig | 10 +++ drivers/leds/Makefile | 1 + drivers/leds/leds-tps6105x.c | 68 +++++++++++++++++++ drivers/mfd/tps6105x.c | 36 +++++++++- drivers/regulator/tps6105x-regulator.c | 10 ++- 6 files changed, 152 insertions(+), 5 deletions(-) create mode 100644 drivers/leds/leds-tps6105x.c -- 2.17.1