diff options
author | Peter Zijlstra <peterz@infradead.org> | 2021-10-07 00:40:17 +0200 |
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committer | Peter Zijlstra <peterz@infradead.org> | 2021-10-07 00:40:17 +0200 |
commit | b08cadbd3b8721db738d9a00ef3ce3ed667e6d9c (patch) | |
tree | 1b44ef760764ea19f82fd80088135d23ab565d2d /drivers/usb/cdns3/cdns3-gadget.c | |
parent | db2b0c5d7b6f19b3c2cab08c531b65342eb5252b (diff) | |
parent | fe255fe6ad97685e5a4be0d871f43288dbc10ad6 (diff) |
Merge branch 'objtool/urgent'
Fixup conflicts.
# Conflicts:
# tools/objtool/check.c
Diffstat (limited to 'drivers/usb/cdns3/cdns3-gadget.c')
-rw-r--r-- | drivers/usb/cdns3/cdns3-gadget.c | 14 |
1 files changed, 14 insertions, 0 deletions
diff --git a/drivers/usb/cdns3/cdns3-gadget.c b/drivers/usb/cdns3/cdns3-gadget.c index 5d8c982019af..1f3b4a142212 100644 --- a/drivers/usb/cdns3/cdns3-gadget.c +++ b/drivers/usb/cdns3/cdns3-gadget.c @@ -1100,6 +1100,19 @@ static int cdns3_ep_run_stream_transfer(struct cdns3_endpoint *priv_ep, return 0; } +static void cdns3_rearm_drdy_if_needed(struct cdns3_endpoint *priv_ep) +{ + struct cdns3_device *priv_dev = priv_ep->cdns3_dev; + + if (priv_dev->dev_ver < DEV_VER_V3) + return; + + if (readl(&priv_dev->regs->ep_sts) & EP_STS_TRBERR) { + writel(EP_STS_TRBERR, &priv_dev->regs->ep_sts); + writel(EP_CMD_DRDY, &priv_dev->regs->ep_cmd); + } +} + /** * cdns3_ep_run_transfer - start transfer on no-default endpoint hardware * @priv_ep: endpoint object @@ -1351,6 +1364,7 @@ static int cdns3_ep_run_transfer(struct cdns3_endpoint *priv_ep, /*clearing TRBERR and EP_STS_DESCMIS before seting DRDY*/ writel(EP_STS_TRBERR | EP_STS_DESCMIS, &priv_dev->regs->ep_sts); writel(EP_CMD_DRDY, &priv_dev->regs->ep_cmd); + cdns3_rearm_drdy_if_needed(priv_ep); trace_cdns3_doorbell_epx(priv_ep->name, readl(&priv_dev->regs->ep_traddr)); } |