From: Frank Wunderlich <frank-w@public-files.de>
To: linux-mediatek@lists.infradead.org
Cc: Frank Wunderlich <frank-w@public-files.de>,
Greg Kroah-Hartman <gregkh@linuxfoundation.org>,
Matthias Brugger <matthias.bgg@gmail.com>,
linux-serial@vger.kernel.org,
linux-arm-kernel@lists.infradead.org,
linux-kernel@vger.kernel.org
Subject: [PATCH] serial: 8250-mtk: Use platform_get_irq_optional() for optional irq
Date: Sun, 27 Oct 2019 07:21:17 +0100 [thread overview]
Message-ID: <20191027062117.20389-1-frank-w@public-files.de> (raw)
As platform_get_irq() now prints an error when the interrupt does not
exist, this warnings are printed on bananapi-r2:
[ 4.935780] mt6577-uart 11004000.serial: IRQ index 1 not found
[ 4.962589] 11002000.serial: ttyS1 at MMIO 0x11002000 (irq = 202, base_baud = 1625000) is a ST16650V2
[ 4.972127] mt6577-uart 11002000.serial: IRQ index 1 not found
[ 4.998927] 11003000.serial: ttyS2 at MMIO 0x11003000 (irq = 203, base_baud = 1625000) is a ST16650V2
[ 5.008474] mt6577-uart 11003000.serial: IRQ index 1 not found
Fix this by calling platform_get_irq_optional() instead.
now it looks like this:
[ 4.872751] Serial: 8250/16550 driver, 4 ports, IRQ sharing disabled
Fixes: 7723f4c5ecdb8d83 ("driver core: platform: Add an error message to platform_get_irq*()")
Signed-off-by: Frank Wunderlich <frank-w@public-files.de>
---
changes since v1:
https://patchwork.kernel.org/patch/11213813/
change from platform_irq_count to platform_get_irq_optional
---
drivers/tty/serial/8250/8250_mtk.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/drivers/tty/serial/8250/8250_mtk.c b/drivers/tty/serial/8250/8250_mtk.c
index b411ba4eb5e9..4d067f515f74 100644
--- a/drivers/tty/serial/8250/8250_mtk.c
+++ b/drivers/tty/serial/8250/8250_mtk.c
@@ -544,7 +544,7 @@ static int mtk8250_probe(struct platform_device *pdev)
pm_runtime_set_active(&pdev->dev);
pm_runtime_enable(&pdev->dev);
- data->rx_wakeup_irq = platform_get_irq(pdev, 1);
+ data->rx_wakeup_irq = platform_get_irq_optional(pdev, 1);
return 0;
}
--
2.17.1
next reply other threads:[~2019-10-27 6:21 UTC|newest]
Thread overview: 2+ messages / expand[flat|nested] mbox.gz Atom feed top
2019-10-27 6:21 Frank Wunderlich [this message]
2019-11-10 20:23 ` [PATCH] serial: 8250-mtk: Use platform_get_irq_optional() for optional irq Matthias Brugger
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