phy: phy-mtk-tphy: add property to set pre-emphasis

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Add a property to set usb2 phy's pre-emphasis, it's disabled by default
on some SoCs.

Signed-off-by: Chunfeng Yun <chunfeng.yun@mediatek.com>
Reviewed-by: AngeloGioacchino Del Regno <angelogioacchino.delregno@collabora.com>
Link: https://lore.kernel.org/r/20220914060746.10004-3-chunfeng.yun@mediatek.com
Signed-off-by: Vinod Koul <vkoul@kernel.org>

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Chunfeng Yun 2022-09-14 14:07:42 +08:00 • committed by Vinod Koul

parent 54511f207c

commit 930981b425

1 changed files with 10 additions and 0 deletions

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drivers/phy/mediatek/phy-mtk-tphy.c

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