• Chen-Yu Tsai's avatar
    rtc: sun6i: Fix compatibility with old DT binding · 15829cf4
    Chen-Yu Tsai authored
    Commit 847b8bf62eb4 ("rtc: sun6i: Expose the 32kHz oscillator") adds
    a new clock for the rtc block with a 2 step probe mechanism. To share
    the register region between both the clock and rtc instance, a static
    pointer is used to keep the related data structure.
    
    To preserve compatibility with the old binding, the data structure
    should be saved as soon as the registers are mapped in, regardless
    of the presence of the clock bindings, so that the rtc device can
    retrieve it when it is probed.
    
    This fixes the rtc device not probing when we use the updated driver
    with an old device tree blob.
    
    Fixes: 847b8bf62eb4 ("rtc: sun6i: Expose the 32kHz oscillator")
    Signed-off-by: Chen-Yu Tsai's avatarChen-Yu Tsai <[email protected]>
    Signed-off-by: default avatarAlexandre Belloni <[email protected]>
    15829cf4
rtc-sun6i.c 14.5 KB