Thread (19 messages) 19 messages, 4 authors, 2021-09-25

[PATCHv3 5/6] phy: amlogic: meson8b-usb2: Power off the PHY by putting it into reset mode

From: Anand Moon <hidden>
Date: 2021-08-17 04:18:26
Also in: linux-amlogic, linux-arm-kernel, linux-phy, 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>
Acked-by: Martin Blumenstingl <martin.blumenstingl@googlemail.com>
Signed-off-by: Anand Moon <redacted>
---
v2 - None
---
 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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