Thread (74 messages) 74 messages, 5 authors, 2016-02-05

Re: PM regression with commit 5de85b9d57ab PM runtime re-init in v4.5-rc1

From: Tony Lindgren <tony@atomide.com>
Date: 2016-01-26 22:50:13
Also in: linux-arm-kernel, linux-omap

* Tony Lindgren [off-list ref] [160126 14:49]:
Hi,

Looks like commit 5de85b9d57ab ("PM / runtime: Re-init runtime
PM states at probe error and driver unbind") broke PM on at least
omap3. It seems we now need to additionally also call
pm_runtime_dont_use_autosuspend() to get things working again?

The following fixes idling on omap3, but I'm wondering if we
should do something in pm_runtime_reinit() instead?
Oh one more thing, this happens as we get -EPROBE_DEFER with
the regulators initially.
quoted hunk ↗ jump to hunk
8< ---------------------
--- a/drivers/mmc/host/omap_hsmmc.c
+++ b/drivers/mmc/host/omap_hsmmc.c
@@ -2232,6 +2232,7 @@ err_irq:
 		dma_release_channel(host->tx_chan);
 	if (host->rx_chan)
 		dma_release_channel(host->rx_chan);
+	pm_runtime_dont_use_autosuspend(host->dev);
 	pm_runtime_put_sync(host->dev);
 	pm_runtime_disable(host->dev);
 	if (host->dbclk)
--
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