linux-kernel - Re: [RFC PATCH v6 6/9] media: tegra: Add Tegra210 Video input driver

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Date:   Sun, 5 Apr 2020 22:37:47 +0300
From:   Dmitry Osipenko <digetx@...il.com>
To:     Sowjanya Komatineni <skomatineni@...dia.com>,
        thierry.reding@...il.com, jonathanh@...dia.com, frankc@...dia.com,
        hverkuil@...all.nl, sakari.ailus@....fi, helen.koike@...labora.com
Cc:     sboyd@...nel.org, linux-media@...r.kernel.org,
        devicetree@...r.kernel.org, linux-clk@...r.kernel.org,
        linux-tegra@...r.kernel.org, linux-kernel@...r.kernel.org
Subject: Re: [RFC PATCH v6 6/9] media: tegra: Add Tegra210 Video input driver

04.04.2020 04:25, Sowjanya Komatineni пишет:
...
> +static int tegra_csi_init(struct host1x_client *client)
> +{
> +	struct tegra_csi *csi = host1x_client_to_csi(client);
> +	struct tegra_video_device *vid = dev_get_drvdata(client->host);
> +	int ret;
> +
> +	vid->csi = csi;
> +
> +	INIT_LIST_HEAD(&csi->csi_chans);
> +
> +	if (pm_runtime_enabled(csi->dev)) {
> +		ret = pm_runtime_get_sync(csi->dev);
> +		if (ret < 0) {
> +			dev_err(csi->dev,
> +				"failed to get runtime PM: %d\n", ret);
> +			pm_runtime_put_noidle(csi->dev);
> +			return ret;
> +		}
> +	} else {

RPM is supposed to be always available on Tegra nowadays.