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[129.46.232.65]) by smtp.gmail.com with ESMTPSA id 6a1803df08f44-8949182443esm13111066d6.11.2026.01.23.01.20.01 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Fri, 23 Jan 2026 01:20:03 -0800 (PST) From: Wenmeng Liu Date: Fri, 23 Jan 2026 17:19:55 +0800 Subject: [PATCH v7 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: <20260123-imx412-v7-1-e58303f2b76b@oss.qualcomm.com> References: <20260123-imx412-v7-0-e58303f2b76b@oss.qualcomm.com> In-Reply-To: <20260123-imx412-v7-0-e58303f2b76b@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=1769159998; l=940; i=wenmeng.liu@oss.qualcomm.com; s=20250925; h=from:subject:message-id; bh=4kB6E3tvuYvahXcXz4FyDub5VQRkkUF0xqd2WnZKWC0=; b=RG6m72iRi3lZPfiv7TFImb2kxC34Ws4bFimfVvyHuPmIWzTm86f6L1r3ltaaD4aPrndoRU+9g pEJvqCfsAksDFm/wNvp9bJnVOCxRmSzFcwiHwyN4q6yONxrRGi47zI7 X-Developer-Key: i=wenmeng.liu@oss.qualcomm.com; a=ed25519; pk=fQJjf9C3jGDjE1zj2kO3NQLTbQEaZObVcXAzx5WLPX0= X-Proofpoint-Spam-Details-Enc: AW1haW4tMjYwMTIzMDA3MyBTYWx0ZWRfX415SXm6X/khj lBcYgVdahMuOht/OXKRPAvYYHtMFfSyIh2gY4qIczVszsFZ2OfgAvMl9HRXeeeG4gaKayV5Gf+S yt3R/EaB1JHP9mG6N0YzimKeIv6kYsDoPNqVNpEGt9S3L2FsieqZ5BsHhkr71ATWHpzpb0eeMc8 MYKE/GvnBIMjEcyqE2J1wmGgSfHnO21TukM55qT9GXMwG0QOZTeZ168NpMJuBb3DMSq45kIOisb AKddVdJMcuLGcbbBW8O2Zh0i4hp67UVUAI0Tj8D83kTeZowP7rxUK9u1dKhXQo7Dpzkdwp7BALu 3RwzUBFmamWjLXoU56gKLPqfbW2BtDlVCNhcOmB8f0LLV5SfVrq9GfFaJipnqqdO33PUdjcxeAY O33TGsXgMUK5tQIFBbZOxQq9NC2XL07EKygDk9/x2eqwTgbcj1TZiNfMOyHRf/yc0JjjNphFdvH KM3Yr/4sKgmwK73ew5g== X-Authority-Analysis: v=2.4 cv=JuX8bc4C c=1 sm=1 tr=0 ts=69733d45 cx=c_pps a=WeENfcodrlLV9YRTxbY/uA==: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=kacYvNCVWA4VmyqE58fU:22 X-Proofpoint-GUID: 5U7Xhbmn15ubAm5sVQiXy97N9VW0pDR7 X-Proofpoint-ORIG-GUID: 5U7Xhbmn15ubAm5sVQiXy97N9VW0pDR7 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=2026-01-23_01,2026-01-22_02,2025-10-01_01 X-Proofpoint-Spam-Details: rule=outbound_notspam policy=outbound score=0 malwarescore=0 priorityscore=1501 spamscore=0 bulkscore=0 lowpriorityscore=0 phishscore=0 suspectscore=0 clxscore=1015 impostorscore=0 adultscore=0 classifier=typeunknown authscore=0 authtc= authcc= route=outbound adjust=0 reason=mlx scancount=1 engine=8.22.0-2601150000 definitions=main-2601230073 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