Commits
make shi committed 2e671ab5fbd
ENGR00230167 MX6 regulator: enable and raise the voltage of USB 3p0 LDO The USB FS eye test will fail in MX6 board if the 3V USB phy LDO is not enabled. Setting enable bit (bit-0) of LDO 3p0 will make 3p0 LDO to use bandgap output as reference voltage, LDO output will be accurate. And HW team suggest that it is better to raise the voltage of USB 3p0 phy LDO 3.2V to pass the USB compliance testing. - Implement vdd3p0 regulator enable and disable function to support enable and disable the LDO 3p0 regulator. - Use regulator API to enable the USB 3p0 phy LDO and raise the LDO to 3.2V during system boot up. And disable the LDO before system enter suspend and enable the LDO again after system resume. Signed-off-by: make shi <b15407@freescale.com>