ARM: OMAP2+: voltage: ensure voltage used is exact voltage from OPP table

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When using the SMPS regulators to scale voltages, the regulator
framework may pass a minimum voltage that is not an exact OPP voltage.
For the VC/VP controlled voltage domains, we must ensure that the
voltage requested is the exact voltage from the OPP table.  This is
especially critical when using SR.

To fix, voltdm_scale() uses the target voltage passed to walk through
the OPP voltages until it finds a voltage that is >= one of the OPP
voltages.

Cc: Tero Kristo <t-kristo@ti.com>
Cc: Nishanth Menon <nm@ti.com>
Signed-off-by: Kevin Hilman <khilman@ti.com>

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Kevin Hilman 2012-03-02 14:08:57 -08:00

parent e160dda0f4

commit c15f1d84bb

1 changed files with 18 additions and 3 deletions

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arch/arm/mach-omap2/voltage.c

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