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This avoids a mismatch where the first power up (when the reset GPIO defaults deasserted) differs from subsequent cycles. Signed-off-by: Wenmeng Liu --- drivers/media/i2c/imx412.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/drivers/media/i2c/imx412.c b/drivers/media/i2c/imx412.c index b3826f80354703b17b416dc233854da3f5736e38..aa63dfc349181bf9c180ffd566b= 0317d05b410c1 100644 --- a/drivers/media/i2c/imx412.c +++ b/drivers/media/i2c/imx412.c @@ -925,7 +925,7 @@ static int imx412_parse_hw_config(struct imx412 *imx412) =20 /* Request optional reset pin */ imx412->reset_gpio =3D devm_gpiod_get_optional(imx412->dev, "reset", - GPIOD_OUT_LOW); + GPIOD_OUT_HIGH); if (IS_ERR(imx412->reset_gpio)) { dev_err(imx412->dev, "failed to get reset gpio %pe\n", imx412->reset_gpio); --=20 2.34.1 From nobody Sun Feb 8 07:58:35 2026 Received: from mx0b-0031df01.pphosted.com (mx0b-0031df01.pphosted.com [205.220.180.131]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id B5B863A7E12 for ; Thu, 22 Jan 2026 09:31:30 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; 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[129.46.232.65]) by smtp.gmail.com with ESMTPSA id 6a1803df08f44-8942e6d87b1sm139601576d6.53.2026.01.22.01.31.26 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Thu, 22 Jan 2026 01:31:28 -0800 (PST) From: Wenmeng Liu Date: Thu, 22 Jan 2026 17:31:19 +0800 Subject: [PATCH v6 2/2] media: i2c: imx412: Extend the power-on waiting time Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Type: text/plain; charset="utf-8" Content-Transfer-Encoding: quoted-printable Message-Id: <20260122-imx412-v6-2-2c0b54594c2a@oss.qualcomm.com> References: <20260122-imx412-v6-0-2c0b54594c2a@oss.qualcomm.com> In-Reply-To: <20260122-imx412-v6-0-2c0b54594c2a@oss.qualcomm.com> To: Sakari Ailus , Mauro Carvalho Chehab Cc: linux-media@vger.kernel.org, linux-kernel@vger.kernel.org, Wenmeng Liu X-Mailer: b4 0.14.2 X-Developer-Signature: v=1; a=ed25519-sha256; t=1769074280; l=912; i=wenmeng.liu@oss.qualcomm.com; s=20250925; h=from:subject:message-id; bh=UXsIDnWDfSfsvhhMChzKv83qNe/yj0Xr2Up0EJt3LiE=; b=x8t9fqjHkU4qesJdjSZAm7KqPgIIpVyIrNAF2n4BjzBNwq23r2+tfYJDzPBKV05VHViiOqJcP JBSamK8IKqtDYMrg0RM88v78f4zVtyTXBBQkWemJCNTN8CcjfQ4N4j/ X-Developer-Key: i=wenmeng.liu@oss.qualcomm.com; a=ed25519; pk=fQJjf9C3jGDjE1zj2kO3NQLTbQEaZObVcXAzx5WLPX0= X-Proofpoint-ORIG-GUID: iJNhBcfM6UGLOwbf551KknYZGVyXEi5y X-Proofpoint-Spam-Details-Enc: AW1haW4tMjYwMTIyMDA2NSBTYWx0ZWRfXzTt1G2ZRrRK9 iby9VLzD8p1Tuu8SEU8UpktWG3dbXGI/wgc/9Q+e3ANar+AaSogHq/pPTK16oKFE4i6BNJkeK2d pon043/e/qJ2hL/6PP8PAcdcV9u8pyTzfMB8BG9V075CBy0XEvnNeQnzjGNXizJKYNlM+1yy6g+ hHQ95V166LM/KhUliNWySs6EiMvt/PQ9zKLaA8hKnYFm9G6y0xtiPZVzkVW0U616wu86SpyQt47 KiFTAKVIgtbNzvtWHpOKqzcx59GJedrRJyAdtylbADqfm0HXHjmvm0xsT12XhjUEEwDDgQWYopF y7wKivLoASBr5qfZDqAgVFD5/APtcE7Y11VcLks38CF99f+qjSb+auJbTAR0qbL//5bmt3o1Myg Oagw98wt3EcWuwIeOaR13EuaczuWmrL1ba/ruku7Gk0V3KKrCCqCZnM0NWsFOR+852KXSob7IzO BwGF4zb1bHGsVAl/mxA== X-Authority-Analysis: v=2.4 cv=G+0R0tk5 c=1 sm=1 tr=0 ts=6971ee71 cx=c_pps a=JbAStetqSzwMeJznSMzCyw==:117 a=C3Dk8TwHQYyIj7nOf9RCJw==:17 a=IkcTkHD0fZMA:10 a=vUbySO9Y5rIA:10 a=s4-Qcg_JpJYA:10 a=VkNPw1HP01LnGYTKEx00:22 a=EUspDBNiAAAA:8 a=dXID522kZObDGRcwZQYA:9 a=3ZKOabzyN94A:10 a=QEXdDO2ut3YA:10 a=uxP6HrT_eTzRwkO_Te1X:22 X-Proofpoint-GUID: iJNhBcfM6UGLOwbf551KknYZGVyXEi5y X-Proofpoint-Virus-Version: vendor=baseguard engine=ICAP:2.0.293,Aquarius:18.0.1121,Hydra:6.1.20,FMLib:17.12.100.49 definitions=2026-01-21_04,2026-01-20_01,2025-10-01_01 X-Proofpoint-Spam-Details: rule=outbound_notspam policy=outbound score=0 clxscore=1015 priorityscore=1501 malwarescore=0 phishscore=0 adultscore=0 spamscore=0 suspectscore=0 lowpriorityscore=0 impostorscore=0 bulkscore=0 classifier=typeunknown authscore=0 authtc= authcc= route=outbound adjust=0 reason=mlx scancount=1 engine=8.22.0-2601150000 definitions=main-2601220065 The Arducam IMX577 module requires a longer reset time than the 1000=C2=B5s configured in the current driver. Increase the wait time after power-on to ensure proper initialization. Signed-off-by: Wenmeng Liu --- drivers/media/i2c/imx412.c | 6 +++++- 1 file changed, 5 insertions(+), 1 deletion(-) diff --git a/drivers/media/i2c/imx412.c b/drivers/media/i2c/imx412.c index aa63dfc349181bf9c180ffd566b0317d05b410c1..9154c238949e4308755e757bd9c= 71f0b44f433ee 100644 --- a/drivers/media/i2c/imx412.c +++ b/drivers/media/i2c/imx412.c @@ -1037,7 +1037,11 @@ static int imx412_power_on(struct device *dev) goto error_reset; } =20 - usleep_range(1000, 1200); + /* + * Some IMX577 modules require a longer reset settle time. + * Increasing the delay from 1ms to 10ms ensures reliable startup. + */ + usleep_range(10000, 12000); =20 return 0; =20 --=20 2.34.1