[PATCHv2,3/4] phy: amlogic: meson8b-usb2: Power off the PHY by putting it into reset mode

Commit Message

Anand Moon July 16, 2021, 10:36 a.m. UTC

Power off the PHY by putting it into reset mode.

Cc: Martin Blumenstingl <[e-mail]>
Acked-by: Martin Blumenstingl <[e-mail]>
Signed-off-by: Anand Moon <[e-mail]>
---
None: Added Martin's Ack
---
 drivers/phy/amlogic/phy-meson8b-usb2.c | 4 ++++
 1 file changed, 4 insertions(+)

Patch

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;
 }