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    SubjectRe: [PATCH RESEND] mfd: anatop: permit adata be NULL when access register
    Hi Richard,

    On Mon, Jun 04, 2012 at 09:56:29AM +0800, Richard Zhao wrote:
    > From: Richard Zhao <>
    > It makes anatop register access easier. Anatop has many misc registers,
    > which may not be a specific driver.
    > There's only one anatop device for a running system, so we use a global
    > variable to store struct anatop.
    Even though I understand it's quite unlikely that you'll never get 2 anatop
    blocks on the same system, the below patch is not really nice.
    Please make your driver support N > 1 instances of your hardware, even though
    it's only for the sake of code cleanness.


    Intel Open Source Technology Centre

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