OMAP4: scale voltage of core before MPU scales
OMAP4 requires that parent domains scale ahead of dependent domains. This is due to the restrictions in timing closure. To ensure a consistent behavior across all OMAP4 SoC, ensure that vdd_core scale first, then vdd_mpu and finally vdd_iva. As part of doing this refactor the logic to allow for future addition of OMAP4470 without much ado. OMAP4470 uses different SMPS addresses and cannot be introduced in the current code without major rewrite. Reported-by: NIsabelle Gros <i-gros@ti.com> Reported-by: NJerome Angeloni <j-angeloni@ti.com> Signed-off-by: NNishanth Menon <nm@ti.com>
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