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    SubjectRe: [PATCH 1/4] ARM: multi_v7_defconfig: Enable common Rockchip devices/busses
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    Hi
    There are also many other devices like display and mmc and even
    the cpu(if the cpu want run a high frequency when boot up)need to
    get power supply from PMIC, so it is better to load PMIC as early as
    possible.Built-in is a better choice.

    On 2015年09月07日 18:24, Sjoerd Simons wrote:
    > On Mon, 2015-09-07 at 11:26 +0200, Javier Martinez Canillas wrote:
    >> Hello Sjoerd,
    >>
    >> On 09/06/2015 10:16 PM, Sjoerd Simons wrote:
    >>> Enable Rockchip I2C, SPI, PWM, thermal drivers.
    >>>
    >>> Builtin are:
    >>> * I2C as it often controls the pmic.
    >> Having I2C as a module will cause more probe deferrals due missing
    >> regulators and slow down the boot but it should not cause issues.
    >> Or am I missing something?
    >>
    >> In fact, I think even the PMIC could be built as a module.
    > It could in principle. However as a lot of other drivers do need the
    > regulators provided by the pmic, they'll be deferred until that driver
    > is loaded. So e.g. with the i2c/pmic drivers as a module you cannot
    > boot to an NFS rootfs without using an initramfs.
    >
    >> But I don't have a strong opinion on this so patch looks good:
    >>
    >> Reviewed-by: Javier Martinez Canillas <javier@osg.samsung.com>
    >>
    >> Best regards,




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