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[129.46.232.65]) by smtp.gmail.com with ESMTPSA id af79cd13be357-8c6a72639fesm1221031885a.44.2026.01.21.01.12.22 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Wed, 21 Jan 2026 01:12:24 -0800 (PST) From: Wenmeng Liu Date: Wed, 21 Jan 2026 17:12:14 +0800 Subject: [PATCH v5 1/2] media: i2c: imx412: Assert reset GPIO during probe 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: <20260121-imx412-v5-1-be67654a4afe@oss.qualcomm.com> References: <20260121-imx412-v5-0-be67654a4afe@oss.qualcomm.com> In-Reply-To: <20260121-imx412-v5-0-be67654a4afe@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=1768986738; l=940; i=wenmeng.liu@oss.qualcomm.com; s=20250925; h=from:subject:message-id; bh=4kB6E3tvuYvahXcXz4FyDub5VQRkkUF0xqd2WnZKWC0=; b=q6l4RUtJ2w/A3XkHljape/yruDNLh/q/Tq90UZ9mOGQtzfjad24aC9OjnYzt2ymLvyBXQjC6A yfhID1Tnco7BFfiUbj5nFiaxiZ4raO1D1ZmMspbDDhgMzS4+SMJINq+ X-Developer-Key: i=wenmeng.liu@oss.qualcomm.com; a=ed25519; pk=fQJjf9C3jGDjE1zj2kO3NQLTbQEaZObVcXAzx5WLPX0= X-Authority-Analysis: v=2.4 cv=QohTHFyd c=1 sm=1 tr=0 ts=6970987a cx=c_pps a=hnmNkyzTK/kJ09Xio7VxxA==:117 a=C3Dk8TwHQYyIj7nOf9RCJw==:17 a=IkcTkHD0fZMA:10 a=vUbySO9Y5rIA:10 a=s4-Qcg_JpJYA:10 a=VkNPw1HP01LnGYTKEx00:22 a=EUspDBNiAAAA:8 a=0H48pH_jBQDuRi9pSjwA:9 a=QEXdDO2ut3YA:10 a=PEH46H7Ffwr30OY-TuGO:22 X-Proofpoint-Spam-Details-Enc: AW1haW4tMjYwMTIxMDA3NiBTYWx0ZWRfX54hYHGmE6jt5 zKSLMBZQWwENjWhDqFLonwdiXl0iWzFs6NBag/XY99OrPt51+3ceNNYTBkqjlzt4nnef5am5Z6S LlyVzWwqut0N4uw7WhRv3QYbjlYPJFd97HxPCQgnX9oW9rwc+0RSnJWYNvwJWfHb1Qlo2C0vQWl XJbBySGNGnkmkkWW0SV9YjRNx37rX6w6PQLrOcz2busDY8b3TAIT28vFeggSNFR4kUrrSUso3I4 cjbJPyNLrRgIij2iqCAEZbqx2pNY8r3S0BQE0Nqcw1ETogVbXGMOQY9emvi3g2XoD2F8KyWZ+EX PiSkM1xP5GOQXwg6XBDpBhlyRrxB0GkhrxUM8qvInTIx8/XbYVJuP37qd90cZLGnrAVhWPVwwqn dfWH5HrhyatU61y9yaqg0RMuQ5qFipWupj9SpxrRyt+r9KkjmsGUo9IKoMuYw01kt0uyCEGzz/v YxWXow0dYHMjxLTIvag== X-Proofpoint-GUID: dvuYIfJh0A9QUSQaYaZ9hwyDcrW1mIRw X-Proofpoint-ORIG-GUID: dvuYIfJh0A9QUSQaYaZ9hwyDcrW1mIRw 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_01,2026-01-20_01,2025-10-01_01 X-Proofpoint-Spam-Details: rule=outbound_notspam policy=outbound score=0 bulkscore=0 malwarescore=0 priorityscore=1501 adultscore=0 clxscore=1015 impostorscore=0 lowpriorityscore=0 phishscore=0 suspectscore=0 spamscore=0 classifier=typeunknown authscore=0 authtc= authcc= route=outbound adjust=0 reason=mlx scancount=1 engine=8.22.0-2601150000 definitions=main-2601210076 Assert the reset GPIO before first power up. 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