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authorTero Kristo <t-kristo@ti.com>2020-09-12 06:47:08 +0200
committerSantosh Shilimkar <santosh.shilimkar@oracle.com>2020-09-12 06:47:08 +0200
commitefa5c01cd7ee20421a92ffe9b4aae7dfed385eeb (patch)
treecd44364a42d082a29b32b2a057e1eee8e82fd400 /drivers/firmware
parentsoc: ti: pruss: Enable support for ICSSG subsystems on K3 J721E SoCs (diff)
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soc: ti: ti_sci_pm_domains: switch to use multiple genpds instead of one
Current implementation of the genpd support over TI SCI uses a single genpd across the whole SoC, and attaches multiple devices to this. This solution has its drawbacks, like it is currently impossible to attach more than one power domain to a device; the core genpd implementation requires one genpd per power-domain entry in DT for a single device. Also, some devices like USB apparently require their own genpd during probe time, the current shared approach in use does not work at all. Switch the implementation over to use a single genpd per power domain entry in DT. The domains are registered with the onecell approach, but we also add our own xlate service due to recent introduction of the extended flag for TI SCI PM domains; genpd core xlate service requires a single cell per powerdomain, but we are using two cells. Signed-off-by: Tero Kristo <t-kristo@ti.com> Signed-off-by: Santosh Shilimkar <santosh.shilimkar@oracle.com>
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