[PATCH] mmc: sunxi-mmc: Ensure host is suspended during system sleep

If the device suspend process begins before the mmc host's autosuspend
timeout, the host will continue running during system sleep. Avoid
this by forcing runtime suspend during a global suspend transition.

Signed-off-by: Samuel Holland <samuel@sholland.org>
---
 drivers/mmc/host/sunxi-mmc.c | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/drivers/mmc/host/sunxi-mmc.c b/drivers/mmc/host/sunxi-mmc.c
index 6310693f2ac0..cfee8db7b76d 100644
--- a/drivers/mmc/host/sunxi-mmc.c
+++ b/drivers/mmc/host/sunxi-mmc.c

@@ -1507,6 +1507,8 @@ static int sunxi_mmc_runtime_suspend(struct device *dev)
 #endif
 
 static const struct dev_pm_ops sunxi_mmc_pm_ops = {
+	SET_SYSTEM_SLEEP_PM_OPS(pm_runtime_force_suspend,
+				pm_runtime_force_resume)
 	SET_RUNTIME_PM_OPS(sunxi_mmc_runtime_suspend,
 			   sunxi_mmc_runtime_resume,
 			   NULL)

-- 
2.26.2


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On Tue, Jan 12, 2021 at 11:24:21PM -0600, Samuel Holland wrote:

If the device suspend process begins before the mmc host's autosuspend
timeout, the host will continue running during system sleep. Avoid
this by forcing runtime suspend during a global suspend transition.

Signed-off-by: Samuel Holland <samuel@sholland.org>

Acked-by: Maxime Ripard <mripard@kernel.org>

Thanks!
Maxime

On Wed, 13 Jan 2021 at 06:24, Samuel Holland [off-list ref] wrote:

If the device suspend process begins before the mmc host's autosuspend
timeout, the host will continue running during system sleep. Avoid
this by forcing runtime suspend during a global suspend transition.

Signed-off-by: Samuel Holland <samuel@sholland.org>

Applied for next, thanks!

Kind regards
Uffe

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