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 3400D253F23; Thu, 17 Apr 2025 18:06:27 +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=1744913187; cv=none; b=g1L5AzPBZ5QuQ6hrQuHLhbTJqp67eqS9ePqSz4evxfRwUmDZNQg81GmODu5yZW9K1oQuB4zlF2Xlwk8MWYn/FowSUH/NuFa+xWwUDfV7ddaOxz/zMN3+/Rg68DrhwDjzhpDEk25s1TePQxh23KxfnCRbrog2W1KYj6NrJtBBXuw= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1744913187; c=relaxed/simple; bh=g6jFFIIPPJ2ZfsYq4rGZrKk+9e/kppYuqrCqCVsL7B4=; h=From:To:Cc:Subject:Date:Message-ID:In-Reply-To:References: MIME-Version; b=C4fKMAO0yi/nd2GRwwYnJ3Z0msZgdrcFwiYxu9xw+cXd2Vd7qNWuroNmfFIakHAlc3p8qi76NnMa1561OpO+DF2MfyJZQsaxsMmCK/NsKDbkLy+OkXbj66QKu5bLYDyHS4jYRKB81EANJJ6CHuQZHgANVVfCRfAnM54AnLkD//A= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dkim=pass (1024-bit key) header.d=linuxfoundation.org header.i=@linuxfoundation.org header.b=KZ6lZtPJ; 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="KZ6lZtPJ" Received: by smtp.kernel.org (Postfix) with ESMTPSA id A1186C4CEE4; Thu, 17 Apr 2025 18:06:26 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=linuxfoundation.org; s=korg; t=1744913187; bh=g6jFFIIPPJ2ZfsYq4rGZrKk+9e/kppYuqrCqCVsL7B4=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=KZ6lZtPJqc1RZSCKvBDdUKUoGdDdvyh6yDZubynOQCBjWo7fBdCOl7/H05pUghxjn McLdptiKtB2dTnz5y1R1FKwcBawhOMkAMCPROG9z0gdmljVsBOhRK0nBKF8FigA81c OGk5mTynExbk5a8PdS5AQZ3x3Ha7Zg10ur6RCz0s= 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 6.14 255/449] media: i2c: ov7251: Introduce 1 ms delay between regulators and en GPIO Date: Thu, 17 Apr 2025 19:49:03 +0200 Message-ID: <20250417175128.258912427@linuxfoundation.org> X-Mailer: git-send-email 2.49.0 In-Reply-To: <20250417175117.964400335@linuxfoundation.org> References: <20250417175117.964400335@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 6.14-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 @@ -922,6 +922,8 @@ static int ov7251_set_power_on(struct de return ret; } + usleep_range(1000, 1100); + gpiod_set_value_cansleep(ov7251->enable_gpio, 1); /* wait at least 65536 external clock cycles */