On Nov 19, 2014, at 12:52 PM, Kenneth Westfield kwestfie@codeaurora.org wrote:
From: Kenneth Westfield kwestfie@codeaurora.org
This set of patches adds support for audio on the Qualcomm Technologies ipq806x SOC.
The ipq806x SOC has audio-related hardware blocks in its low-power audio subsystem (or LPASS). One of the relevant blocks in the LPASS is its low-power audio interface (or LPAIF). This encapsulates the MI2S port, which is what these drivers are configured to use. The I2S pins are connected to an external DAC/amp chip. In addition, a single GPIO is connected to the same DAC/amp, which gives the SOC enable/disable control.
The specific drivers added are:
- a machine driver that handles the board-specific pins
- a native driver that handles hardware access to the LPAIF
- a CPU DAI driver for controlling the LPAIF block
- a PCM MI2S platform driver
Corresponding additions to the device tree for the ipq806x and its documentation has also been added. Also, as this is a new directory, the MAINTAINERS file has been updated as well.
- Ken
Some general comments, you shouldn’t have gerrit Change-Id’s in commit messages, the Kconfig/Makefile changes should be part of the patch that adds the code associated with them.
- k