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Subject[RESEND PATCH v3 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>
---
v2~3: 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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