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    Subject[PATCH v2 08/11] phy: phy-mtk-tphy: make the ref clock optional
    Date
    Sometimes the reference clock of USB3 PHY comes from oscillator
    directly, and no need refer to a fixed-clock in DTS anymore
    if make it optional.

    Signed-off-by: Chunfeng Yun <chunfeng.yun@mediatek.com>
    ---
    v2: no changes
    ---
    drivers/phy/mediatek/phy-mtk-tphy.c | 2 +-
    1 file changed, 1 insertion(+), 1 deletion(-)

    diff --git a/drivers/phy/mediatek/phy-mtk-tphy.c b/drivers/phy/mediatek/phy-mtk-tphy.c
    index 4a2dc92f10f5..96c62e3a3300 100644
    --- a/drivers/phy/mediatek/phy-mtk-tphy.c
    +++ b/drivers/phy/mediatek/phy-mtk-tphy.c
    @@ -1182,7 +1182,7 @@ static int mtk_tphy_probe(struct platform_device *pdev)
    if (tphy->u3phya_ref)
    continue;

    - instance->ref_clk = devm_clk_get(&phy->dev, "ref");
    + instance->ref_clk = devm_clk_get_optional(&phy->dev, "ref");
    if (IS_ERR(instance->ref_clk)) {
    dev_err(dev, "failed to get ref_clk(id-%d)\n", port);
    retval = PTR_ERR(instance->ref_clk);
    --
    2.23.0
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