[PATCH 05/10] usb: musb: Fix PM runtime autosuspend

[Tony Lindgren <tony-4v6yS6AI5VpBDgjK7y7TUQ@public.gmane.org>]

Let's make the PM runtime use the standard autosuspend calls.
Commit 5de85b9d57ab ("PM / runtime: Re-init runtime PM states at probe
error and driver unbind") means we must pair use_autosuspend with
dont_use_autosuspend and then use put_sync to properly idle the
device.

Note that we'll be removing the PM runtime calls from the glue
layer to the MUSB core in the next patch.

Signed-off-by: Tony Lindgren <tony-4v6yS6AI5VpBDgjK7y7TUQ@public.gmane.org>
---
 drivers/usb/musb/musb_core.c   | 9 ++++++---
 drivers/usb/musb/musb_gadget.c | 3 ++-
 drivers/usb/musb/omap2430.c    | 5 +++--
 3 files changed, 11 insertions(+), 6 deletions(-)

diff --git a/drivers/usb/musb/musb_core.c b/drivers/usb/musb/musb_core.c
index d7af8ed..90ccdb2 100644
--- a/drivers/usb/musb/musb_core.c
+++ b/drivers/usb/musb/musb_core.c
@@ -2214,7 +2214,8 @@ musb_init_controller(struct device *dev, int nIrq, void __iomem *ctrl)
 	if (status)
 		goto fail5;
 
-	pm_runtime_put(musb->controller);
+	pm_runtime_mark_last_busy(musb->controller);
+	pm_runtime_put_autosuspend(musb->controller);
 
 	/*
 	 * For why this is currently needed, see commit 3e43a0725637
@@ -2242,6 +2243,7 @@ fail2_5:
 	usb_phy_shutdown(musb->xceiv);
 
 err_usb_phy_init:
+	pm_runtime_dont_use_autosuspend(musb->controller);
 	pm_runtime_put_sync(musb->controller);
 
 fail2:
@@ -2307,8 +2309,6 @@ static int musb_remove(struct platform_device *pdev)
 	spin_unlock_irqrestore(&musb->lock, flags);
 	musb_writeb(musb->mregs, MUSB_DEVCTL, 0);
 	musb_platform_exit(musb);
-	pm_runtime_put(musb->controller);
-	/* FIXME power down */
 
 	musb_phy_callback = NULL;
 
@@ -2320,6 +2320,9 @@ static int musb_remove(struct platform_device *pdev)
 	cancel_work_sync(&musb->irq_work);
 	cancel_delayed_work_sync(&musb->finish_resume_work);
 	cancel_delayed_work_sync(&musb->deassert_reset_work);
+	pm_runtime_dont_use_autosuspend(musb->controller);
+	pm_runtime_put_sync(musb->controller);
+	pm_runtime_disable(musb->controller);
 	musb_free(musb);
 	device_init_wakeup(dev, 0);
 	return 0;
diff --git a/drivers/usb/musb/musb_gadget.c b/drivers/usb/musb/musb_gadget.c
index 152865b..fff5a8a 100644
--- a/drivers/usb/musb/musb_gadget.c
+++ b/drivers/usb/musb/musb_gadget.c
@@ -1963,7 +1963,8 @@ static int musb_gadget_stop(struct usb_gadget *g)
 	 * that currently misbehaves.
 	 */
 
-	pm_runtime_put(musb->controller);
+	pm_runtime_mark_last_busy(musb->controller);
+	pm_runtime_put_autosuspend(musb->controller);
 
 	return 0;
 }
diff --git a/drivers/usb/musb/omap2430.c b/drivers/usb/musb/omap2430.c
index 9d3645f..c55d4f3 100644
--- a/drivers/usb/musb/omap2430.c
+++ b/drivers/usb/musb/omap2430.c
@@ -441,8 +441,9 @@ static int omap2430_musb_init(struct musb *musb)
 	phy_init(musb->phy);
 	phy_power_on(musb->phy);
 
-	pm_runtime_put_noidle(musb->controller);
-	pm_runtime_put_noidle(glue->dev);
+	pm_runtime_mark_last_busy(musb->controller);
+	pm_runtime_put_autosuspend(musb->controller);
+	pm_runtime_put(glue->dev);
 	return 0;
 
 err1:
-- 
2.8.1

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