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occ: Add pstate corresponding to base frequency to DT
Unlike POWER8, nominal frequency is not the highest guaranteed frequency of the POWER9 chip. In POWER9, the highest guaranteed frequency is greater than the nominal frequency and is referred to as base frequency. In POWER9 base frequency is the highest frequency the processor will operate at when ALL cores are active and in ANY operating condition. This patch exports the turbo pstate as the base frequency as per OCC documentation. Signed-off-by: Shilpasri G Bhat <shilpa.bhat@linux.vnet.ibm.com> [oliver: delete ibm,pstate-base on fast reboot] Signed-off-by: Oliver O'Halloran <oohall@gmail.com>
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