Subject: [PATCHv1 2/3] phy: amlogic: meson8b-usb2: Power off the PHY by putting it into reset mode

From: Anand Moon <[email-masked]>
Date: Tue, 13 Jul 2021 05:52:14 +0000

Power off the PHY by putting it into reset mode.

Cc: Martin Blumenstingl <[email-masked]>
Signed-off-by: Anand Moon <[email-masked]>
---
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/[email-masked]/
---
 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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