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To utilise the DPAUX on Tegra, the SOR power partition must be enabled. Now that Tegra supports the generic PM domain framework we manage the SOR power partition via this framework for DPAUX. However, the sequence for gating/ungating the SOR power partition requires that the DPAUX reset is asserted/de-asserted at the time the SOR power partition is gated/ungated, respectively. Now that the reset control core assumes that resets are exclusive, the Tegra generic PM domain code and the DPAUX driver cannot request the same reset unless we mark the resets as shared. Sharing resets will not work in this case because we cannot guarantee that the reset will be asserted/de-asserted at the appropriate time. Therefore, given that the Tegra generic PM domain code will handle the DPAUX reset, do not request the reset in the DPAUX driver if the DPAUX device has a PM domain associated. Signed-off-by: Jon Hunter <jonathanh@nvidia.com> Signed-off-by: Thierry Reding <treding@nvidia.com> |
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