[PATCHv1 2/3] phy: amlogic: meson8b-usb2: Power off the PHY by putting it into reset mode
From: Anand Moon <hidden>
Date: 2021-07-13 05:53:22
Also in:
linux-amlogic, linux-arm-kernel, linux-devicetree, lkml
Subsystem:
arm/amlogic meson soc support, generic phy framework, the rest · Maintainers:
Neil Armstrong, Kevin Hilman, Vinod Koul, Linus Torvalds
Power off the PHY by putting it into reset mode. Cc: Martin Blumenstingl <martin.blumenstingl@googlemail.com> Signed-off-by: Anand Moon <redacted> --- Fix the commit message. rfc - Keep vendor driver sequence for the power on reset of usb phy [0] https://patchwork.kernel.org/project/linux-amlogic/patch/20210617194154.2397-8-linux.amoon@gmail.com/ --- drivers/phy/amlogic/phy-meson8b-usb2.c | 4 ++++ 1 file changed, 4 insertions(+)
diff --git a/drivers/phy/amlogic/phy-meson8b-usb2.c b/drivers/phy/amlogic/phy-meson8b-usb2.c
index 03c061dd5f0d..2aad45c55494 100644
--- a/drivers/phy/amlogic/phy-meson8b-usb2.c
+++ b/drivers/phy/amlogic/phy-meson8b-usb2.c@@ -219,6 +219,10 @@ static int phy_meson8b_usb2_power_off(struct phy *phy) clk_disable_unprepare(priv->clk_usb); clk_disable_unprepare(priv->clk_usb_general); + /* power off the PHY by putting it into reset mode */ + regmap_update_bits(priv->regmap, REG_CTRL, REG_CTRL_POWER_ON_RESET, + REG_CTRL_POWER_ON_RESET); + return 0; }
--
2.32.0
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