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    Subject[PATCH v3 11/14] memory: mtk-smi: Use device_is_bound to check if smi-common is ready
    Date
    smi-larb driver should run after smi-common, Use device_is_bound to confirm
    whether smicommon driver is ready.

    CC: Matthias Brugger <matthias.bgg@gmail.com>
    Signed-off-by: Yong Wu <yong.wu@mediatek.com>
    ---
    drivers/memory/mtk-smi.c | 8 +++++++-
    1 file changed, 7 insertions(+), 1 deletion(-)

    diff --git a/drivers/memory/mtk-smi.c b/drivers/memory/mtk-smi.c
    index 3df9036..789d2ab 100644
    --- a/drivers/memory/mtk-smi.c
    +++ b/drivers/memory/mtk-smi.c
    @@ -296,8 +296,14 @@ static int mtk_smi_larb_probe(struct platform_device *pdev)
    smi_pdev = of_find_device_by_node(smi_node);
    of_node_put(smi_node);
    if (smi_pdev) {
    - if (!platform_get_drvdata(smi_pdev))
    + bool smicommon_is_bound;
    +
    + device_lock(&smi_pdev->dev);
    + smicommon_is_bound = device_is_bound(&smi_pdev->dev);
    + device_unlock(&smi_pdev->dev);
    + if (!smicommon_is_bound)
    return -EPROBE_DEFER;
    +
    larb->smi_common_dev = &smi_pdev->dev;
    link = device_link_add(dev, larb->smi_common_dev,
    DL_FLAG_PM_RUNTIME | DL_FLAG_STATELESS);
    --
    1.9.1
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