Linux Input/HID development
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From: Chao Huang <958028483@qq.com>
To: Jiri Kosina <jikos@kernel.org>, Benjamin Tissoires <bentiss@kernel.org>
Cc: Douglas Anderson <dianders@chromium.org>,
	Matthias Kaehlcke <mka@chromium.org>,
	Dmitry Torokhov <dmitry.torokhov@gmail.com>,
	linux-input@vger.kernel.org, linux-kernel@vger.kernel.org,
	Chao Huang <huangchao@kylinos.cn>
Subject: [PATCH] HID: i2c-hid: goodix: Disable VDD on VDDIO enable failure
Date: Wed, 22 Jul 2026 17:36:54 +0800	[thread overview]
Message-ID: <tencent_FE1CA7ED99022E1734F8C9CAB538AB477405@qq.com> (raw)

From: Chao Huang <huangchao@kylinos.cn>

If enabling VDDIO fails after VDD has been enabled, the power-up
path returns without disabling VDD. This leaves the regulator enabled
and its enable count unbalanced.

Disable VDD before returning the VDDIO error.

Fixes: eb16f59e8e58 ("HID: i2c-hid: goodix: Add mainboard-vddio-supply")
Signed-off-by: Chao Huang <huangchao@kylinos.cn>
---
 drivers/hid/i2c-hid/i2c-hid-of-goodix.c | 4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

diff --git a/drivers/hid/i2c-hid/i2c-hid-of-goodix.c b/drivers/hid/i2c-hid/i2c-hid-of-goodix.c
index f1597ad67e7c..f4dbcd1d1d47 100644
--- a/drivers/hid/i2c-hid/i2c-hid-of-goodix.c
+++ b/drivers/hid/i2c-hid/i2c-hid-of-goodix.c
@@ -51,8 +51,10 @@ static int goodix_i2c_hid_power_up(struct i2chid_ops *ops)
 		return ret;
 
 	ret = regulator_enable(ihid_goodix->vddio);
-	if (ret)
+	if (ret) {
+		regulator_disable(ihid_goodix->vdd);
 		return ret;
+	}
 
 	if (ihid_goodix->timings->post_power_delay_ms)
 		msleep(ihid_goodix->timings->post_power_delay_ms);
-- 
2.25.1


             reply	other threads:[~2026-07-22  9:37 UTC|newest]

Thread overview: 4+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2026-07-22  9:36 Chao Huang [this message]
2026-07-22  9:47 ` [PATCH] HID: i2c-hid: goodix: Disable VDD on VDDIO enable failure sashiko-bot
2026-07-31 17:08 ` Doug Anderson
2026-08-03 19:19 ` Jiri Kosina

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