Received-SPF: pass (google.com: best guess record for domain of linux-kernel-owner@vger.kernel.org designates 209.132.180.67 as permitted sender) client-ip=209.132.180.67;
Subject: Re: [PATCH v2 RFT] media: exynos4-is: add missed
 clk_disable_unprepare in remove
To:     Chuhong Yuan <hslester96@gmail.com>
Cc:     Kyungmin Park <kyungmin.park@samsung.com>,
        Sylwester Nawrocki <s.nawrocki@samsung.com>,
        Mauro Carvalho Chehab <mchehab@kernel.org>,
        Kukjin Kim <kgene@kernel.org>,
        Krzysztof Kozlowski <krzk@kernel.org>,
        linux-media@vger.kernel.org, linux-arm-kernel@lists.infradead.org,
        linux-samsung-soc@vger.kernel.org, linux-kernel@vger.kernel.org
References: <20191219074824.15047-1-hslester96@gmail.com>
From:   Hans Verkuil <hverkuil@xs4all.nl>
Message-ID: <f253eb6e-5e21-fd9b-8c2f-371beea66afa@xs4all.nl>
Date:   Fri, 10 Jan 2020 14:40:21 +0100
User-Agent: Mozilla/5.0 (X11; Linux x86_64; rv:60.0) Gecko/20100101
 Thunderbird/60.9.0
MIME-Version: 1.0
In-Reply-To: <20191219074824.15047-1-hslester96@gmail.com>
Content-Type: text/plain; charset=utf-8
Content-Language: en-US
Content-Transfer-Encoding: 7bit
Sender: linux-kernel-owner@vger.kernel.org
Precedence: bulk

Anyone able/willing to test this patch?

Regards,

	Hans

On 12/19/19 8:48 AM, Chuhong Yuan wrote:
> This driver forgets to disable and unprepare clock when remove.
> Add a call to clk_disable_unprepare() to fix it.
> 
> Signed-off-by: Chuhong Yuan <hslester96@gmail.com>
> ---
> Changes in v2:
>   - Add a check of pm_runtime_enable() to match enable in probe.
>   - Add RFT tag.
> 
>  drivers/media/platform/exynos4-is/fimc-lite.c | 3 +++
>  1 file changed, 3 insertions(+)
> 
> diff --git a/drivers/media/platform/exynos4-is/fimc-lite.c b/drivers/media/platform/exynos4-is/fimc-lite.c
> index e87c6a09205b..17de14fbba31 100644
> --- a/drivers/media/platform/exynos4-is/fimc-lite.c
> +++ b/drivers/media/platform/exynos4-is/fimc-lite.c
> @@ -1614,6 +1614,9 @@ static int fimc_lite_remove(struct platform_device *pdev)
>  	struct fimc_lite *fimc = platform_get_drvdata(pdev);
>  	struct device *dev = &pdev->dev;
>  
> +	if (!pm_runtime_enabled(dev))
> +		clk_disable_unprepare(fimc->clock);
> +
>  	pm_runtime_disable(dev);
>  	pm_runtime_set_suspended(dev);
>  	fimc_lite_unregister_capture_subdev(fimc);
>