From: Lee Jones <lee.jones@linaro.org>
To: gregkh@linuxfoundation.org
Cc: linux-arm-kernel@lists.infradead.org,
linux-kernel@vger.kernel.org, linux-usb@vger.kernel.org,
Lee Jones <lee.jones@linaro.org>,
Minas Harutyunyan <hminas@synopsys.com>,
Ben Dooks <ben@simtec.co.uk>
Subject: [PATCH v2 1/8] usb: dwc2: gadget: Make use of GINTMSK2
Date: Wed, 15 Jul 2020 10:32:02 +0100 [thread overview]
Message-ID: <20200715093209.3165641-2-lee.jones@linaro.org> (raw)
In-Reply-To: <20200715093209.3165641-1-lee.jones@linaro.org>
The value obtained from GINTSTS2 should be masked with the GINTMSK2
value. Looks like this has been broken since
dwc2_gadget_wkup_alert_handler() was added back in 2018.
Also fixes the following W=1 warning:
drivers/usb/dwc2/gadget.c: In function ‘dwc2_gadget_wkup_alert_handler’:
drivers/usb/dwc2/gadget.c:259:6: warning: variable ‘gintmsk2’ set but not used [-Wunused-but-set-variable]
259 | u32 gintmsk2;
| ^~~~~~~~
Cc: Minas Harutyunyan <hminas@synopsys.com>
Cc: Ben Dooks <ben@simtec.co.uk>
Fixes: 187c5298a1229 ("usb: dwc2: gadget: Add handler for WkupAlert interrupt")
Signed-off-by: Lee Jones <lee.jones@linaro.org>
---
Changelog:
v2: Re-written to *use* instad of *remove* gintmsk2
drivers/usb/dwc2/gadget.c | 1 +
1 file changed, 1 insertion(+)
diff --git a/drivers/usb/dwc2/gadget.c b/drivers/usb/dwc2/gadget.c
index df5fedaca60a0..03cf1fa856219 100644
--- a/drivers/usb/dwc2/gadget.c
+++ b/drivers/usb/dwc2/gadget.c
@@ -260,6 +260,7 @@ static void dwc2_gadget_wkup_alert_handler(struct dwc2_hsotg *hsotg)
gintsts2 = dwc2_readl(hsotg, GINTSTS2);
gintmsk2 = dwc2_readl(hsotg, GINTMSK2);
+ gintsts2 &= gintmsk2;
if (gintsts2 & GINTSTS2_WKUP_ALERT_INT) {
dev_dbg(hsotg->dev, "%s: Wkup_Alert_Int\n", __func__);
--
2.25.1
next prev parent reply other threads:[~2020-07-15 9:32 UTC|newest]
Thread overview: 15+ messages / expand[flat|nested] mbox.gz Atom feed top
2020-07-15 9:32 [PATCH v2 0/8] Mop-up left-behind fixes for W=1 warnings in USB Lee Jones
2020-07-15 9:32 ` Lee Jones [this message]
2020-07-15 12:23 ` [PATCH v2 1/8] usb: dwc2: gadget: Make use of GINTMSK2 Minas Harutyunyan
2020-07-21 9:43 ` Felipe Balbi
2020-07-21 10:09 ` Minas Harutyunyan
2020-07-21 11:32 ` Felipe Balbi
2020-07-21 11:52 ` Lee Jones
2020-07-21 11:55 ` Felipe Balbi
2020-07-15 9:32 ` [PATCH v2 2/8] usb: dwc2: gadget: Avoid pointless read of EP control register Lee Jones
2020-07-15 9:32 ` [PATCH v2 3/8] usb: mtu3: mtu3_trace: Function headers are not suitable for kerneldoc Lee Jones
2020-07-15 9:32 ` [PATCH v2 4/8] usb: mtu3: mtu3_trace: Supply missing mtu3_debug.h include file Lee Jones
2020-07-15 9:32 ` [PATCH v2 5/8] usb: class: cdc-wdm: Provide description for usb_cdc_wdm_register()'s manage_power arg Lee Jones
2020-07-15 9:32 ` [PATCH v2 6/8] usb: c67x00: c67x00-hcd: Demote obvious misuse of kerneldoc to standard comment blocks Lee Jones
2020-07-15 9:32 ` [PATCH v2 7/8] usb: misc: sisusbvga: sisusb_init: Remove genunine unused static const arrays Lee Jones
2020-07-15 9:32 ` [PATCH v2 8/8] usb: misc: sisusbvga: Move static const tables out to different include file Lee Jones
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