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 73E2C221719; Tue, 29 Apr 2025 17:44:26 +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=1745948666; cv=none; b=m6HVP9PSAAWpLdZZ7d2dTTC9sKJMVtyRcGgk8uHn5/8gaPZ8yI2QXfwC5m+GYU9smeR0xRvb0cpUoKiNQ78W8adGcGxKP0o3h2E9Fa3ygLN9fNOivigVyVtJquaXt2NoVecmlgfFX5K0+tcaFfN7/66yf1cq8GZMaybtNjLQOh8= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1745948666; c=relaxed/simple; bh=BdaT+hvFSX+0+PZHSpV9WQpHsJKX4YphtuNFXJ+lnz8=; h=From:To:Cc:Subject:Date:Message-ID:In-Reply-To:References: MIME-Version; b=ZWFnfJfm6nhN11hiTmP+y4OVCWhXn6cxbCrT0wocrb3hUdjv638J9weJDuGnfM81kIExzra4jbE/aGM4W37ki0Yw4TenE3j5s/ZB5KH5al/Dx4ZlEB6OIPYmrEiPOn0tW8QC2wdJiyzDidgKySvbeKkSpnY7GukRYmYXCylaP2A= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dkim=pass (1024-bit key) header.d=linuxfoundation.org header.i=@linuxfoundation.org header.b=Bozp8UHw; 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="Bozp8UHw" Received: by smtp.kernel.org (Postfix) with ESMTPSA id 0569DC4CEE3; Tue, 29 Apr 2025 17:44:25 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=linuxfoundation.org; s=korg; t=1745948666; bh=BdaT+hvFSX+0+PZHSpV9WQpHsJKX4YphtuNFXJ+lnz8=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=Bozp8UHwj/n80fMWFeufC9wKi/flRv6AH2ExWZXtUh64VvZ/JgbBYyPUPSlJOd/u0 DXwYBY8FJuTd2ISyDyEawxqoVL/+ctd4GnAmWLVYOArX4JYvPMejccahDi/d+UTSeN VGI7CJAW5zRYESUQ3QA7/3BerHJ5377nXoktq6gk= 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 5.15 075/373] media: i2c: ov7251: Introduce 1 ms delay between regulators and en GPIO Date: Tue, 29 Apr 2025 18:39:12 +0200 Message-ID: <20250429161126.236786758@linuxfoundation.org> X-Mailer: git-send-email 2.49.0 In-Reply-To: <20250429161123.119104857@linuxfoundation.org> References: <20250429161123.119104857@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 5.15-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 */