Re: [PATCH 0/3] bus: Add support for Tegra210 ACONNECT

From: Jon Hunter
Date: Fri Apr 29 2016 - 09:56:04 EST


Ignore this, I ballsed it up!

On 29/04/16 14:46, Jon Hunter wrote:
> Add support for the ACONNECT bus which is part of the audio sub-system
> on Tegra210.
>
> I did look to see if we could use the simple-pm-bus infrastructure for
> this, however, in the end I found that it did was not a good fit because
> of the way clocks for the bus are handled. The simple-pm-bus is tightly
> coupled to the genpd subsystem and is reliant on the power-domain
> associated with the bus to have the flag GENPD_FLAG_PM_CLK set and uses
> the genpd function pointer, attach_dev(), as a hook to populate the
> clocks. For Tegra this does not work because the power-domains are
> instantiated from device-tree rather than platform code. In this case
> for Tegra it is simpler to keep the clock management of devices within
> the power-domain separated from the power-domain itself.
>
> Jon Hunter (2):
> dt-bindings: bus: Add documentation for Tegra210 ACONNECT
> bus: Add support for Tegra ACONNECT
>
> Shardar Shariff Md (1):
> dmaengine: tegra-apb: proper default init of channel slave_id
>
> .../bindings/bus/nvidia,tegra210-aconnect.txt | 45 ++++++++
> drivers/bus/Kconfig | 9 ++
> drivers/bus/Makefile | 1 +
> drivers/bus/tegra-aconnect.c | 113 +++++++++++++++++++++
> drivers/dma/tegra20-apb-dma.c | 16 ++-
> 5 files changed, 182 insertions(+), 2 deletions(-)
> create mode 100644 Documentation/devicetree/bindings/bus/nvidia,tegra210-aconnect.txt
> create mode 100644 drivers/bus/tegra-aconnect.c