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authorKevin Hilman <khilman@ti.com>2012-11-08 11:08:50 -0800
committerTony Lindgren <tony@atomide.com>2012-11-12 14:11:47 -0800
commit1ef43369c681bf30a980a4ba42df20514b15fdda (patch)
tree0e0ed0d2064a58bcc33a4bb97f8970b2687659c2 /MAINTAINERS
parentcbf6bae1044286a89955d7c4b3a8d6d84a9916b3 (diff)
ARM: OMAP4: TWL: mux sys_drm_msecure as output for PMIC
On OMAP4 boards using the TWL6030 PMIC, the sys_drm_msecure is connected to the MSECURE input of the TWL6030 PMIC. This signal controls the secure-mode operation of the PMIC. If its not mux'd correctly, some functionality of the PMIC will not be accessible since the PMIC will be in secure mode. For example, if the TWL RTC is in secure mode, most of its registers are read-only, meaning (re)programming the RTC (e.g. for wakeup from suspend) will fail. To fix, ensure the signal is properly mux'd as output when TWL is intialized. This fix is required when using recent versions of u-boot (>= v2012.04.01) since u-boot is no longer setting the default mux for this pin. Signed-off-by: Kevin Hilman <khilman@ti.com> Signed-off-by: Tony Lindgren <tony@atomide.com>
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