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authorTony Lindgren <tony@atomide.com>2014-08-28 03:28:08 +0400
committerKishon Vijay Abraham I <kishon@ti.com>2014-09-24 13:48:32 +0400
commit62dc5769bbd9f187e2e5df64f4e3b5affd48fe7b (patch)
treea4b2bc13d11baa686ab30dd3bc82cf5778e705aa
parentbb419402cc1075db508f9ee8cfff3618e111f744 (diff)
downloadlinux-62dc5769bbd9f187e2e5df64f4e3b5affd48fe7b.tar.xz
usb: phy: twl4030-usb: Simplify phy init to use runtime PM
We can now let the interrupt and delayed work do all that's needed with runtime PM. Signed-off-by: Tony Lindgren <tony@atomide.com> Signed-off-by: Kishon Vijay Abraham I <kishon@ti.com>
-rw-r--r--drivers/phy/phy-twl4030-usb.c20
1 files changed, 3 insertions, 17 deletions
diff --git a/drivers/phy/phy-twl4030-usb.c b/drivers/phy/phy-twl4030-usb.c
index bc28eccb029e..a292db01b503 100644
--- a/drivers/phy/phy-twl4030-usb.c
+++ b/drivers/phy/phy-twl4030-usb.c
@@ -471,16 +471,8 @@ static int twl4030_phy_power_on(struct phy *phy)
twl4030_usb_set_mode(twl, twl->usb_mode);
if (twl->usb_mode == T2_USB_MODE_ULPI)
twl4030_i2c_access(twl, 0);
+ schedule_delayed_work(&twl->id_workaround_work, 0);
- /*
- * XXX When VBUS gets driven after musb goes to A mode,
- * ID_PRES related interrupts no longer arrive, why?
- * Register itself is updated fine though, so we must poll.
- */
- if (twl->linkstat == OMAP_MUSB_ID_GROUND) {
- cancel_delayed_work(&twl->id_workaround_work);
- schedule_delayed_work(&twl->id_workaround_work, HZ);
- }
return 0;
}
@@ -612,16 +604,9 @@ static void twl4030_id_workaround_work(struct work_struct *work)
static int twl4030_phy_init(struct phy *phy)
{
struct twl4030_usb *twl = phy_get_drvdata(phy);
- enum omap_musb_vbus_id_status status;
pm_runtime_get_sync(twl->dev);
- status = twl4030_usb_linkstat(twl);
- twl->linkstat = status;
-
- if (status == OMAP_MUSB_ID_GROUND || status == OMAP_MUSB_VBUS_VALID)
- omap_musb_mailbox(twl->linkstat);
-
- sysfs_notify(&twl->dev->kobj, NULL, "vbus");
+ schedule_delayed_work(&twl->id_workaround_work, 0);
pm_runtime_mark_last_busy(twl->dev);
pm_runtime_put_autosuspend(twl->dev);
@@ -698,6 +683,7 @@ static int twl4030_usb_probe(struct platform_device *pdev)
twl->dev = &pdev->dev;
twl->irq = platform_get_irq(pdev, 0);
twl->vbus_supplied = false;
+ twl->linkstat = -EINVAL;
twl->asleep = 1;
twl->linkstat = OMAP_MUSB_UNKNOWN;