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From: Hans de Goede <hdegoede@redhat.com>
To: Felipe Balbi <balbi@kernel.org>,
	Greg Kroah-Hartman <gregkh@linuxfoundation.org>,
	"Rafael J . Wysocki" <rafael@kernel.org>
Cc: Hans de Goede <hdegoede@redhat.com>,
	linux-usb@vger.kernel.org, Stephen Boyd <swboyd@chromium.org>,
	linux-kernel@vger.kernel.org
Subject: [PATCH 2/3] usb: dwc3: Switch to platform_get_irq_byname_optional()
Date: Sat,  5 Oct 2019 23:04:48 +0200	[thread overview]
Message-ID: <20191005210449.3926-3-hdegoede@redhat.com> (raw)
In-Reply-To: <20191005210449.3926-1-hdegoede@redhat.com>

The dwc3 code to get the "peripheral" / "host" / "otg" IRQ first tries
platform_get_irq_byname() and then falls back to the IRQ at index 0 if
the platform_get_irq_byname().

In this case we do not want platform_get_irq_byname() to print an error
on failure, so switch to platform_get_irq_byname_optional() instead which
does not print an error.

BugLink: https://bugzilla.kernel.org/show_bug.cgi?id=205037
Signed-off-by: Hans de Goede <hdegoede@redhat.com>
---
 drivers/usb/dwc3/drd.c    | 4 ++--
 drivers/usb/dwc3/gadget.c | 4 ++--
 drivers/usb/dwc3/host.c   | 4 ++--
 3 files changed, 6 insertions(+), 6 deletions(-)

diff --git a/drivers/usb/dwc3/drd.c b/drivers/usb/dwc3/drd.c
index 726100d1ac0d..b1f76628b313 100644
--- a/drivers/usb/dwc3/drd.c
+++ b/drivers/usb/dwc3/drd.c
@@ -139,14 +139,14 @@ static int dwc3_otg_get_irq(struct dwc3 *dwc)
 	struct platform_device *dwc3_pdev = to_platform_device(dwc->dev);
 	int irq;
 
-	irq = platform_get_irq_byname(dwc3_pdev, "otg");
+	irq = platform_get_irq_byname_optional(dwc3_pdev, "otg");
 	if (irq > 0)
 		goto out;
 
 	if (irq == -EPROBE_DEFER)
 		goto out;
 
-	irq = platform_get_irq_byname(dwc3_pdev, "dwc_usb3");
+	irq = platform_get_irq_byname_optional(dwc3_pdev, "dwc_usb3");
 	if (irq > 0)
 		goto out;
 
diff --git a/drivers/usb/dwc3/gadget.c b/drivers/usb/dwc3/gadget.c
index 8adb59f8e4f1..13c97ff21dba 100644
--- a/drivers/usb/dwc3/gadget.c
+++ b/drivers/usb/dwc3/gadget.c
@@ -3264,14 +3264,14 @@ static int dwc3_gadget_get_irq(struct dwc3 *dwc)
 	struct platform_device *dwc3_pdev = to_platform_device(dwc->dev);
 	int irq;
 
-	irq = platform_get_irq_byname(dwc3_pdev, "peripheral");
+	irq = platform_get_irq_byname_optional(dwc3_pdev, "peripheral");
 	if (irq > 0)
 		goto out;
 
 	if (irq == -EPROBE_DEFER)
 		goto out;
 
-	irq = platform_get_irq_byname(dwc3_pdev, "dwc_usb3");
+	irq = platform_get_irq_byname_optional(dwc3_pdev, "dwc_usb3");
 	if (irq > 0)
 		goto out;
 
diff --git a/drivers/usb/dwc3/host.c b/drivers/usb/dwc3/host.c
index 8deea8c91e03..534a49609779 100644
--- a/drivers/usb/dwc3/host.c
+++ b/drivers/usb/dwc3/host.c
@@ -16,14 +16,14 @@ static int dwc3_host_get_irq(struct dwc3 *dwc)
 	struct platform_device	*dwc3_pdev = to_platform_device(dwc->dev);
 	int irq;
 
-	irq = platform_get_irq_byname(dwc3_pdev, "host");
+	irq = platform_get_irq_byname_optional(dwc3_pdev, "host");
 	if (irq > 0)
 		goto out;
 
 	if (irq == -EPROBE_DEFER)
 		goto out;
 
-	irq = platform_get_irq_byname(dwc3_pdev, "dwc_usb3");
+	irq = platform_get_irq_byname_optional(dwc3_pdev, "dwc_usb3");
 	if (irq > 0)
 		goto out;
 
-- 
2.23.0


  parent reply	other threads:[~2019-10-05 21:05 UTC|newest]

Thread overview: 11+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2019-10-05 21:04 [PATCH 0/3] Add platform_get_irq_byname_optional() and use it in the dwc3 driver Hans de Goede
2019-10-05 21:04 ` [PATCH 1/3] driver core: platform: Add platform_get_irq_byname_optional() Hans de Goede
2019-10-07  8:53   ` Rafael J. Wysocki
2019-10-07 15:30   ` Stephen Boyd
2019-10-05 21:04 ` Hans de Goede [this message]
2019-10-07  5:38   ` [PATCH 2/3] usb: dwc3: Switch to platform_get_irq_byname_optional() Felipe Balbi
2019-10-07 15:31   ` Stephen Boyd
2019-10-05 21:04 ` [PATCH 3/3] usb: dwc3: Remove dev_err() on platform_get_irq() failure Hans de Goede
2019-10-07  5:39   ` Felipe Balbi
2019-10-07 15:31   ` Stephen Boyd
2019-10-07 10:54 ` [PATCH 0/3] Add platform_get_irq_byname_optional() and use it in the dwc3 driver Greg Kroah-Hartman

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