From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from smtp.kernel.org (aws-us-west-2-korg-mail-1.web.codeaurora.org [10.30.226.201]) (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 66FD72264C0; Sat, 29 Aug 2026 13:06:51 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=10.30.226.201 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1788008811; cv=none; b=l0owa5fr85MgRLMxXgo8oiAgnJaPseGD47E7cprsJJgJH3xmYVDM8dZfPuTxLgI4cIEGqQFmT5YH80Pa38nXsLdTfYU1rGiErREbSevD8n8/YB4K4XiqUvXU41aVOR+Rl11GvMS4yldi0N9cfH6nPvrfLh2VgWrQREI06PVXLnU= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1788008811; c=relaxed/simple; bh=3T1abFEb3q0LHyV+GB3FmH+SEqo1auqa1Sh66RzFZRw=; h=From:Date:Subject:MIME-Version:Content-Type:Message-Id:References: In-Reply-To:To:Cc; b=sjZ0OjgillnMWUcCbasAMhMadYxiqQlZqduijyErePv/ug0bZV9Tg7HDCQ/Wvj4guKjJkrszn0jhBTLboNOa9sbpaBoin5ovhpkrCJevUHi9nioQDbaTX1P5YAe0J+WwxxwihVXuT3zUk5QMTFmecqPZ+CTN6xEDPYttcoC77bw= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=kernel.org header.i=@kernel.org header.b=fIU3R1i7; arc=none smtp.client-ip=10.30.226.201 Authentication-Results: smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=kernel.org header.i=@kernel.org header.b="fIU3R1i7" Received: by smtp.kernel.org (Postfix) with ESMTPS id 14F33C2BCF7; Sat, 29 Aug 2026 13:06:51 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=k20201202; t=1788008811; bh=3T1abFEb3q0LHyV+GB3FmH+SEqo1auqa1Sh66RzFZRw=; h=From:Date:Subject:References:In-Reply-To:To:Cc:Reply-To:From; b=fIU3R1i7SrIj0hbtvjhW+X9e2UO/23Kyi5iD4B2iBxhTk7kNADDZOdG3ibyrhACCr IiJwJ4Rq7nQBGT9hwUxLOt2afkyvzuGZxIEUyHUbuWuPan3qHmYkG+DYdS1Qzg8FF2 IhbIUpjbV3puVyYFCKU0fUL9iw1NLYOkVF33gMdsm2M+IU7NWUEPiMsNPLNa6zvWjZ P9gYsKBq3Bf7QnNv+4NhnHVMGKgjf6gd+9Y2sx339B7Yq00qqQ74OYE+UQ40pVh528 Mju/+R2D5uhUfAOoF8fg4Lpn3mGpp/jrkiPrRSqaAFB2V4VeUuabUY2rdg8GgGlpzA z3u8MkbS1UX4g== Received: from aws-us-west-2-korg-lkml-1.web.codeaurora.org (localhost.localdomain [127.0.0.1]) by smtp.lore.kernel.org (Postfix) with ESMTP id EA433C61DBE; Sat, 29 Aug 2026 13:06:50 +0000 (UTC) From: Muzaffer Kadir via B4 Relay Date: Sat, 29 Aug 2026 16:06:33 +0300 Subject: [PATCH v2 1/2] media: i2c: imx258: Add wait after enabling 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: 7bit Message-Id: <20260829-imx258-add-reset-gpio-patch-v2-1-bfd27891e225@mainlining.org> References: <20260829-imx258-add-reset-gpio-patch-v2-0-bfd27891e225@mainlining.org> In-Reply-To: <20260829-imx258-add-reset-gpio-patch-v2-0-bfd27891e225@mainlining.org> To: Sakari Ailus , Mauro Carvalho Chehab Cc: git@luigi311.com, pavel@ucw.cz, tomm.merciai@gmail.com, linux-media@vger.kernel.org, linux-kernel@vger.kernel.org, phone-devel@vger.kernel.org, Muzaffer Kadir , =?utf-8?q?Ond=C5=99ej_Jirman?= X-Mailer: b4 0.14.3 X-Developer-Signature: v=1; a=ed25519-sha256; t=1788008809; l=852; i=muzafferkadir@mainlining.org; s=20260816; h=from:subject:message-id; bh=6gFgGcWn8XWMZgFcAqImtkE7Mtn0Fv/loz0A+OqkWoQ=; b=uDYz4J8Nixs5xOqxBYgf/sToUz4lEo/oxloyl5W/XX50cB3pCXI9ryVqXDpD2cvMOCYz4mBB5 gDjt0HwAdhpDyOM1OGRks8jJLKAZGPyV9NUsTA31ue5+WUOQEMa7t6Z X-Developer-Key: i=muzafferkadir@mainlining.org; a=ed25519; pk=4zkv4suQ3cYcO4Z7CrV8JSSjEGLBGepUtvQCFjgnYIU= X-Endpoint-Received: by B4 Relay for muzafferkadir@mainlining.org/20260816 with auth_id=954 X-Original-From: Muzaffer Kadir Reply-To: muzafferkadir@mainlining.org From: Muzaffer Kadir After enabling the device, a delay is required before the sensor is ready for CCI access. 0.4ms delay needed between enabling and reading the ID register over CCI. Link: https://lore.kernel.org/phone-devel/apF5oxsCf7MJt1lk@kekkonen.localdomain/T/#md6a0411e81a2e3a563c935348f2fb4f3d52df64f Signed-off-by: Muzaffer Kadir --- drivers/media/i2c/imx258.c | 1 + 1 file changed, 1 insertion(+) diff --git a/drivers/media/i2c/imx258.c b/drivers/media/i2c/imx258.c index bc9ee449a87c..9c3a6579df0d 100644 --- a/drivers/media/i2c/imx258.c +++ b/drivers/media/i2c/imx258.c @@ -1129,6 +1129,7 @@ static int imx258_power_on(struct device *dev) dev_err(dev, "failed to enable clock\n"); regulator_bulk_disable(IMX258_NUM_SUPPLIES, imx258->supplies); } + fsleep(400); return ret; } -- 2.54.0