diff options
Diffstat (limited to 'kernels/linux-libre-xen/0012-phy-twl4030-usb-better-handle-musb_mailbox-failure.patch')
| -rw-r--r-- | kernels/linux-libre-xen/0012-phy-twl4030-usb-better-handle-musb_mailbox-failure.patch | 62 |
1 files changed, 0 insertions, 62 deletions
diff --git a/kernels/linux-libre-xen/0012-phy-twl4030-usb-better-handle-musb_mailbox-failure.patch b/kernels/linux-libre-xen/0012-phy-twl4030-usb-better-handle-musb_mailbox-failure.patch deleted file mode 100644 index 47581e739..000000000 --- a/kernels/linux-libre-xen/0012-phy-twl4030-usb-better-handle-musb_mailbox-failure.patch +++ /dev/null @@ -1,62 +0,0 @@ -From 842bdf96a2e7a63ece87458ad7ecf1ded6a40a12 Mon Sep 17 00:00:00 2001 -From: Andreas Kemnade <andreas@kemnade.info> -Date: Mon, 22 Aug 2016 21:24:22 +0200 -Subject: [PATCH 12/13] phy-twl4030-usb: better handle musb_mailbox() failure - -setting twl->linkstat = MUSB_UNKNOWN upon error in musb_mailbox as -introduced in -commit 12b7db2bf8b8 ("usb: musb: Return error value from musb_mailbox") -causes twl4030_usb_irq() to not detect a state change form cable connected -to cable disconnected after such an error so that -pm_runtime_put_autosuspend() will not be called and the usage counter -gets unbalanced. Such errors happen e.g. if the omap2430 module is not -(yet) loaded during plug/unplug events. - -This patch introduces a flag instead that indicates whether there is -information for the musb_mailbox pending and calls musb_mailbox() if -that flag is set. - -Signed-off-by: Andreas Kemnade <andreas@kemnade.info> -Tested-by: Tony Lindgren <tony@atomide.com> ---- - drivers/phy/phy-twl4030-usb.c | 9 +++++++-- - 1 file changed, 7 insertions(+), 2 deletions(-) - -diff --git a/drivers/phy/phy-twl4030-usb.c b/drivers/phy/phy-twl4030-usb.c -index d9b10a3..81067b4 100644 ---- a/drivers/phy/phy-twl4030-usb.c -+++ b/drivers/phy/phy-twl4030-usb.c -@@ -172,6 +172,7 @@ struct twl4030_usb { - int irq; - enum musb_vbus_id_status linkstat; - bool vbus_supplied; -+ bool musb_mailbox_pending; - - struct delayed_work id_workaround_work; - }; -@@ -569,9 +570,12 @@ static irqreturn_t twl4030_usb_irq(int irq, void *_twl) - pm_runtime_mark_last_busy(twl->dev); - pm_runtime_put_autosuspend(twl->dev); - } -+ twl->musb_mailbox_pending = true; -+ } -+ if (twl->musb_mailbox_pending) { - err = musb_mailbox(status); -- if (err) -- twl->linkstat = MUSB_UNKNOWN; -+ if (!err) -+ twl->musb_mailbox_pending = false; - } - - /* don't schedule during sleep - irq works right then */ -@@ -676,6 +680,7 @@ static int twl4030_usb_probe(struct platform_device *pdev) - twl->irq = platform_get_irq(pdev, 0); - twl->vbus_supplied = false; - twl->linkstat = MUSB_UNKNOWN; -+ twl->musb_mailbox_pending = false; - - twl->phy.dev = twl->dev; - twl->phy.label = "twl4030"; --- -2.10.2 - |