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由 Thara Gopinath 提交于
This patch adds voltage driver support for OMAP3. The driver allows configuring the voltage controller and voltage processors during init and exports APIs to enable/disable voltage processors, scale voltage and reset voltage. The driver maintains the global voltage table on a per VDD basis which contains the various voltages supported by the VDD along with per voltage dependent data like smartreflex efuse offset, errminlimit and voltage processor errorgain. The driver also allows the voltage parameters dependent on the PMIC to be passed from the PMIC file through an API. The driver allows scaling of VDD voltages either through "vc bypass method" or through "vp forceupdate method" the choice being configurable through the board file. This patch contains code originally in linux omap pm branch smartreflex driver. Major contributors to this driver are Lesly A M, Rajendra Nayak, Kalle Jokiniemi, Paul Walmsley, Nishant Menon, Kevin Hilman. The separation of PMIC parameters into a separate structure which can be populated from the PMIC file is based on the work of Lun Chang from Motorola in an internal tree. Signed-off-by: NThara Gopinath <thara@ti.com> [khilman: fixed link error for OMAP2-only defconfig] Signed-off-by: NKevin Hilman <khilman@deeprootsystems.com>
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