Per the current binding, QM/QXP DSPs are supposed to have 4
power domains, while the rest just 1. For QM/QXP, the 4 power
domains are: DSP, DSP_RAM, MU13A, MU13B.
First off, drop MU13A from the count as its already attached
to lsio_mu13. This decreases the count to 3.
Secondly, drop DSP and DSP_RAM from the count for QXP. These
are already attached to the DSP's LPCGs.
Thirdly, a new power domain is required for DSP-SCU communication
(MU2A). With this in mind, the number of required power domains
for QXP is 2 (MU2A, MU13B), while for QM it's 4 (MU13B, DSP,
DSP_RAM, MU2A).
Update the fsl,dsp binding to reflect all of this information.
Since the arm,mhuv2 binding has an example node using the
fsl,imx8qxp-dsp compatible, remove two of the extra PDs to
align with the required power domain count.
Signed-off-by: Laurentiu Mihalcea <laurentiu.mihalcea@nxp.com>
Reviewed-by: Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org>
Signed-off-by: Shawn Guo <shawnguo@kernel.org>
Currently the example provided in arm,mhuv2 schema complains as below:
Documentation/devicetree/bindings/mailbox/arm,mhuv2.example.dt.yaml :0:0:
/example-0/soc/scb@2e000000: failed to match any schema with compatible:
['fujitsu,mb86s70-scb-1.0']
Fix it by using an example with a matching schema that makes use of 4
mailboxes that is well suited to demonstrate Rx and Tx channels with both
doorbell and data transfer protocols.
Cc: Rob Herring <robh+dt@kernel.org>
Cc: Viresh Kumar <viresh.kumar@linaro.org>
Signed-off-by: Sudeep Holla <sudeep.holla@arm.com>
Link: https://lore.kernel.org/r/20210604205710.1944363-7-sudeep.holla@arm.com
Signed-off-by: Rob Herring <robh@kernel.org>
