linux-kernel - Re: [PATCH 4/4] media: venus: add PIL support

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Date:   Thu, 17 May 2018 17:40:49 -0700
From:   Trilok Soni <tsoni@...eaurora.org>
To:     Vikash Garodia <vgarodia@...eaurora.org>, hverkuil@...all.nl,
        mchehab@...nel.org, andy.gross@...aro.org,
        bjorn.andersson@...aro.org, stanimir.varbanov@...aro.org
Cc:     linux-media@...r.kernel.org, linux-kernel@...r.kernel.org,
        linux-arm-msm@...r.kernel.org, linux-soc@...r.kernel.org,
        acourbot@...gle.com
Subject: Re: [PATCH 4/4] media: venus: add PIL support

Hi Vikash,

On 5/17/2018 4:32 AM, Vikash Garodia wrote:
> This adds support to load the video firmware
> and bring ARM9 out of reset. This is useful
> for platforms which does not have trustzone
> to reset the ARM9.

ARM9 = video core here? May be commit text needs little bit more detail.

>   
> +static int store_firmware_dev(struct device *dev, void *data)
> +{
> +	struct venus_core *core;
> +
> +	core = (struct venus_core *)data;

No need of casting.

> +	if (!core)
> +		return -EINVAL;
> +
> +	if (of_device_is_compatible(dev->of_node, "qcom,venus-pil-no-tz"))
> +		core->fw.dev = dev;
> +
> +	return 0;
> +}
> +


>   
> -	ret = venus_boot(dev, core->res->fwname);
> +	ret = of_platform_populate(dev->of_node, NULL, NULL, dev);
> +	if (ret)
> +		goto err_runtime_disable;
> +
> +	/* Attempt to register child devices */
> +	ret = device_for_each_child(dev, core, store_firmware_dev);
> +

and not ret check needed?

> +	ret = venus_boot(core);
>   	if (ret)
>   		goto err_runtime_disable;
>   
>   
>   

-- 
---Trilok Soni
Qualcomm Innovation Center, Inc. is a member of Code Aurora Forum, a 
Linux Foundation Collaborative Project