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 5009C24113C; Tue, 29 Apr 2025 16:48:35 +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=1745945316; cv=none; b=dNBQ82rMJpZFIVoWa7hXefaulZY0yBWlWd6YU6OuqbHJIC/w2bLeYbYK/8VqmbYqy7iSEAg6vil9PR6rkSdTHggmNlsTmINCvf2OOpGK1uaB66L0E+UTuwKSrcJA+IcRM+keqYpJOTyKN9axHkIm8RaJgD0N1nwsMlw2U1+8auU= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1745945316; c=relaxed/simple; bh=KyGmg8+6APYLqAlQRowjJsAFhv2tn3lxSk+7vct7xQY=; h=From:To:Cc:Subject:Date:Message-ID:In-Reply-To:References: MIME-Version; b=bVVawTcuJ30C6wTsT7xmFUgPhFPQ/EWV1qYhTXmgGpMRlfuxrJbAvFJPGlE5Syve5EefurI5R4IcD5qWH3c6uzxizJ4KgpcyidoQVPgkbbkFdQw0cIsVJjg6UEEesqB5LvBDzUqFu2LKix86+FdypYmBy6cofwN3qQIcGkyyD2U= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dkim=pass (1024-bit key) header.d=linuxfoundation.org header.i=@linuxfoundation.org header.b=0N6ukxW9; arc=none smtp.client-ip=10.30.226.201 Authentication-Results: smtp.subspace.kernel.org; dkim=pass (1024-bit key) header.d=linuxfoundation.org header.i=@linuxfoundation.org header.b="0N6ukxW9" Received: by smtp.kernel.org (Postfix) with ESMTPSA id 5CC46C4CEE3; Tue, 29 Apr 2025 16:48:35 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=linuxfoundation.org; s=korg; t=1745945315; bh=KyGmg8+6APYLqAlQRowjJsAFhv2tn3lxSk+7vct7xQY=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=0N6ukxW9cEI+1LkMbCy960MC+Daf7aJxevkHt6nrAYn59iMDRJlQWsjhog32xkMPh Fw6VH+HQ65D5yEXqd6o8sL3OGs+la95Dy3LjLV7MU99kXQUqjDK8e0zWEyrkII0zFL mDb28n+vqH2/wSKuN+nGNofVicUUaUVvXDdBpqrQ= From: Greg Kroah-Hartman To: stable@vger.kernel.org Cc: Greg Kroah-Hartman , patches@lists.linux.dev, Sakari Ailus , Dave Stevenson , Hans Verkuil Subject: [PATCH 5.4 054/179] media: i2c: ov7251: Introduce 1 ms delay between regulators and en GPIO Date: Tue, 29 Apr 2025 18:39:55 +0200 Message-ID: <20250429161051.583572585@linuxfoundation.org> X-Mailer: git-send-email 2.49.0 In-Reply-To: <20250429161049.383278312@linuxfoundation.org> References: <20250429161049.383278312@linuxfoundation.org> User-Agent: quilt/0.68 X-stable: review X-Patchwork-Hint: ignore Precedence: bulk X-Mailing-List: stable@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Transfer-Encoding: 8bit 5.4-stable review patch. If anyone has any objections, please let me know. ------------------ From: Sakari Ailus commit 3d391292cdd53984ec1b9a1f6182a62a62751e03 upstream. Lift the xshutdown (enable) GPIO 1 ms after enabling the regulators, as required by the sensor's power-up sequence. Fixes: d30bb512da3d ("media: Add a driver for the ov7251 camera sensor") Cc: stable@vger.kernel.org Signed-off-by: Sakari Ailus Reviewed-by: Dave Stevenson Signed-off-by: Hans Verkuil Signed-off-by: Greg Kroah-Hartman --- drivers/media/i2c/ov7251.c | 2 ++ 1 file changed, 2 insertions(+) --- a/drivers/media/i2c/ov7251.c +++ b/drivers/media/i2c/ov7251.c @@ -748,6 +748,8 @@ static int ov7251_set_power_on(struct ov return ret; } + usleep_range(1000, 1100); + gpiod_set_value_cansleep(ov7251->enable_gpio, 1); /* wait at least 65536 external clock cycles */