linux-kernel - [PATCH] phy: qualcomm: phy-qcom-eusb2-repeater: fix override properties

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Message-ID: <20250812093957.32235-1-mitltlatltl@gmail.com>
Date: Tue, 12 Aug 2025 17:39:56 +0800
From: Pengyu Luo <mitltlatltl@...il.com>
To: Vinod Koul <vkoul@...nel.org>,
	Kishon Vijay Abraham I <kishon@...nel.org>,
	Dmitry Baryshkov <dmitry.baryshkov@....qualcomm.com>,
	Neil Armstrong <neil.armstrong@...aro.org>,
	Konrad Dybcio <konrad.dybcio@....qualcomm.com>,
	Abel Vesa <abel.vesa@...aro.org>
Cc: Pengyu Luo <mitltlatltl@...il.com>,
	Luca Weiss <luca.weiss@...rphone.com>,
	linux-arm-msm@...r.kernel.org,
	linux-phy@...ts.infradead.org,
	linux-kernel@...r.kernel.org
Subject: [PATCH] phy: qualcomm: phy-qcom-eusb2-repeater: fix override properties

property "qcom,tune-usb2-preem" is for EUSB2_TUNE_USB2_PREEM
property "qcom,tune-usb2-amplitude" is for EUSB2_TUNE_IUSB2

The downstream correspondence is as follows:
EUSB2_TUNE_USB2_PREEM: Tx pre-emphasis tuning
EUSB2_TUNE_IUSB2: HS trasmit amplitude
EUSB2_TUNE_SQUELCH_U: Squelch detection threshold
EUSB2_TUNE_HSDISC: HS disconnect threshold
EUSB2_TUNE_EUSB_SLEW: slew rate

Fixes: 31bc94de7602 ("phy: qualcomm: phy-qcom-eusb2-repeater: Don't zero-out registers")
Signed-off-by: Pengyu Luo <mitltlatltl@...il.com>
---
 drivers/phy/qualcomm/phy-qcom-eusb2-repeater.c | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/drivers/phy/qualcomm/phy-qcom-eusb2-repeater.c b/drivers/phy/qualcomm/phy-qcom-eusb2-repeater.c
index d7493c229..3709fba42 100644
--- a/drivers/phy/qualcomm/phy-qcom-eusb2-repeater.c
+++ b/drivers/phy/qualcomm/phy-qcom-eusb2-repeater.c
@@ -127,13 +127,13 @@ static int eusb2_repeater_init(struct phy *phy)
 			     rptr->cfg->init_tbl[i].value);
 
 	/* Override registers from devicetree values */
-	if (!of_property_read_u8(np, "qcom,tune-usb2-amplitude", &val))
+	if (!of_property_read_u8(np, "qcom,tune-usb2-preem", &val))
 		regmap_write(regmap, base + EUSB2_TUNE_USB2_PREEM, val);
 
 	if (!of_property_read_u8(np, "qcom,tune-usb2-disc-thres", &val))
 		regmap_write(regmap, base + EUSB2_TUNE_HSDISC, val);
 
-	if (!of_property_read_u8(np, "qcom,tune-usb2-preem", &val))
+	if (!of_property_read_u8(np, "qcom,tune-usb2-amplitude", &val))
 		regmap_write(regmap, base + EUSB2_TUNE_IUSB2, val);
 
 	/* Wait for status OK */
-- 
2.50.1