On Wed, May 18, 2016 at 04:46:36PM +0300, Peter Ujfalusi wrote:

McPDM module receives it's functional clock from external source. This
clock is the pdmclk provided by the twl6040 audio IC. If the clock is not
available all register accesses to McPDM fails and the module is not
operational.

Signed-off-by: Peter Ujfalusi <redacted>
---
 Documentation/devicetree/bindings/sound/omap-mcpdm.txt | 10 ++++++++++
 sound/soc/omap/omap-mcpdm.c                            | 17 +++++++++++++++++
 2 files changed, 27 insertions(+)

Acked-by: Rob Herring <robh@kernel.org>