Commit ebeacb1f authored by Dmitry Osipenko's avatar Dmitry Osipenko Committed by Mauro Carvalho Chehab
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media: staging: tegra-vde: Power-cycle hardware on probe 



VDE partition is left turned ON after bootloader on most devices, hence
let's ensure that it's turned OFF in order to lower power leakage while
hardware is idling by turning it ON and OFF during of the driver's probe.

Signed-off-by: default avatarDmitry Osipenko <digetx@gmail.com>
Signed-off-by: default avatarHans Verkuil <hverkuil-cisco@xs4all.nl>
Signed-off-by: default avatarMauro Carvalho Chehab <mchehab+huawei@kernel.org>
parent 8f0c714a

drivers/staging/media/tegra-vde/vde.c

+8 −0
Original line number Diff line number Diff line
@@ -1064,6 +1064,14 @@ static int tegra_vde_probe(struct platform_device *pdev) 
	pm_runtime_use_autosuspend(dev);

	pm_runtime_set_autosuspend_delay(dev, 300);



	/*

	 * VDE partition may be left ON after bootloader, hence let's

	 * power-cycle it in order to put hardware into a predictable lower

	 * power state.

	 */

	pm_runtime_get_sync(dev);

	pm_runtime_put(dev);



	return 0;



err_deinit_iommu: