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    SubjectRe: [PATCH 1/2] i2c: omap: convert to module_platform_driver()
    Date
    Grygorii Strashko <grygorii.strashko@ti.com> writes:

    > The OMAP I2C driver has a relation to pinctrl-single driver. As result,
    > its probe will be deferred during system boot until late init time,
    > because the pinctrl-single is initizalized as moudle/device init time.
    > This, in turn, will delay initialization of all I2C devices (like mfd,
    > I2C regulators and etc.) and cause boot delay (more over, it can broken
    > initialization of drivers which are not ready to use deferred probe
    > mechanism yet, for example DSS).
    >
    > There are no sense to keep OMAP I2C initialization on subsys init layer
    > any more, hence shift it to module/device layer where the i2c <-->
    > pinctrl-single dependency is resolved in drivers/Makefile now.
    >
    > Cc: Wolfram Sang <wsa@the-dreams.de>
    > Cc: "Ben Dooks (embedded platforms)" <ben-linux@fluff.org>
    > Cc: Santosh Shilimkar <santosh.shilimkar@ti.com>
    > Cc: linux-omap@vger.kernel.org
    > Cc: linux-i2c@vger.kernel.org
    > Cc: linux-kernel@vger.kernel.org
    >
    > Signed-off-by: Grygorii Strashko <grygorii.strashko@ti.com>

    Testing this patch with PATCH 1/2, the twl_rtc driver fails to correctly
    initialize on OMAP3:

    twl_rtc rtc.22: hctosys: invalid date/time

    instead of the expected result:

    twl_rtc rtc.22: setting system clock to 2000-01-01 00:00:00 UTC (946684800)

    so something is still not right for the init sequence.

    Kevin


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