tree 87890eb2679d4a6f32559f3c1f6b3009102710c4
parent 2fe4bff3516924a37e083e3211364abe59db1161
author Leonard Crestez <leonard.crestez@nxp.com> 1493982017 +0300
committer Shawn Guo <shawnguo@kernel.org> 1494812002 +0800

ARM: dts: imx6sx-sdb: Remove OPP override

The board file for imx6sx-sdb overrides cpufreq operating points to use
higher voltages. This is done because the board has a shared rail for
VDD_ARM_IN and VDD_SOC_IN and when using LDO bypass the shared voltage
needs to be a value suitable for both ARM and SOC.

This only applies to LDO bypass mode, a feature not present in upstream.
When LDOs are enabled the effect is to use higher voltages than necessary
for no good reason.

Setting these higher voltages can make some boards fail to boot with ugly
semi-random crashes reminiscent of memory corruption. These failures only
happen on board rev. C, rev. B is reported to still work.

Signed-off-by: Leonard Crestez <leonard.crestez@nxp.com>
Fixes: 54183bd7f766 ("ARM: imx6sx-sdb: add revb board and make it default")
Cc: stable@vger.kernel.org
Signed-off-by: Shawn Guo <shawnguo@kernel.org>