From 74fca241e6a0c0a4c33d84f64708e4f88ee73402 Mon Sep 17 00:00:00 2001 From: Sameer Pujar Date: Wed, 13 Mar 2019 17:02:37 +0530 Subject: [PATCH] dmaengine: tegra210-adma: update system sleep callbacks If the driver is active till late suspend, where runtime PM cannot run, force suspend is essential in such case to put the device in low power state. Thus pm_runtime_force_suspend and pm_runtime_force_resume are used as system sleep callbacks during system wide PM transitions. Late system sleep callbacks are used to ensure, for instance, that the sound core has suspended any on-going activity, including stopping the ADMA if active, before we attempt to suspend the ADMA. Suggested-by: Jonathan Hunter Signed-off-by: Sameer Pujar Acked-by: Jon Hunter Signed-off-by: Vinod Koul --- drivers/dma/tegra210-adma.c | 10 ++-------- 1 file changed, 2 insertions(+), 8 deletions(-) diff --git a/drivers/dma/tegra210-adma.c b/drivers/dma/tegra210-adma.c index 650cd9c6974e..253d3128fec3 100644 --- a/drivers/dma/tegra210-adma.c +++ b/drivers/dma/tegra210-adma.c @@ -796,17 +796,11 @@ static int tegra_adma_remove(struct platform_device *pdev) return 0; } -#ifdef CONFIG_PM_SLEEP -static int tegra_adma_pm_suspend(struct device *dev) -{ - return pm_runtime_suspended(dev) == false; -} -#endif - static const struct dev_pm_ops tegra_adma_dev_pm_ops = { SET_RUNTIME_PM_OPS(tegra_adma_runtime_suspend, tegra_adma_runtime_resume, NULL) - SET_SYSTEM_SLEEP_PM_OPS(tegra_adma_pm_suspend, NULL) + SET_LATE_SYSTEM_SLEEP_PM_OPS(pm_runtime_force_suspend, + pm_runtime_force_resume) }; static struct platform_driver tegra_admac_driver = {