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Date:   Sat, 19 Feb 2022 21:49:11 +0300
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Subject: Re: [PATCH v3 8/9] drm/tegra: vic: Implement get_streamid_offset
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To:     Mikko Perttunen <mperttunen@nvidia.com>, thierry.reding@gmail.com,
        jonathanh@nvidia.com, joro@8bytes.org, will@kernel.org,
        robh+dt@kernel.org, robin.murphy@arm.com
Cc:     linux-tegra@vger.kernel.org, dri-devel@lists.freedesktop.org,
        iommu@lists.linux-foundation.org, linux-kernel@vger.kernel.org,
        devicetree@vger.kernel.org, linux-arm-kernel@lists.infradead.org
References: <20220218113952.3077606-1-mperttunen@nvidia.com>
 <20220218113952.3077606-9-mperttunen@nvidia.com>
From:   Dmitry Osipenko <digetx@gmail.com>
In-Reply-To: <20220218113952.3077606-9-mperttunen@nvidia.com>
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18.02.2022 14:39, Mikko Perttunen пишет:
> +static int vic_get_streamid_offset(struct tegra_drm_client *client)
> +{
> +	struct vic *vic = to_vic(client);
> +	int err;
> +
> +	err = vic_load_firmware(vic);

You can't invoke vic_load_firmware() while RPM is suspended. Either
replace this with RPM get/put or do something else.

> +	if (err < 0)
> +		return err;
> +
> +	if (vic->can_use_context)
> +		return 0x30;
> +	else
> +		return -ENOTSUPP;

If (!vic->can_use_context)
	return -ENOTSUPP;

return 0x30;