* [PATCH V2] tty: serial: imx: Use platform_get_irq_optional() for optional IRQs
@ 2019-10-09 9:49 Anson Huang
0 siblings, 0 replies; only message in thread
From: Anson Huang @ 2019-10-09 9:49 UTC (permalink / raw)
To: gregkh, jslaby, shawnguo, s.hauer, kernel, festevam,
rafael.j.wysocki, swboyd, andy.shevchenko, linux-serial,
linux-arm-kernel, linux-kernel
Cc: Linux-imx
All i.MX SoCs except i.MX1 have ONLY one necessary IRQ, use
platform_get_irq_optional() to get second/third IRQ which are
optional to avoid below error message during probe:
[ 0.726219] imx-uart 30860000.serial: IRQ index 1 not found
[ 0.731329] imx-uart 30860000.serial: IRQ index 2 not found
Fixes: 7723f4c5ecdb8d83 ("driver core: platform: Add an error message to platform_get_irq*()")
Signed-off-by: Anson Huang <Anson.Huang@nxp.com>
---
Changes since V1:
- use platform_get_irq_optional() directly instead of getting irq count.
---
drivers/tty/serial/imx.c | 4 ++--
1 file changed, 2 insertions(+), 2 deletions(-)
diff --git a/drivers/tty/serial/imx.c b/drivers/tty/serial/imx.c
index 504d81c..357d3ff 100644
--- a/drivers/tty/serial/imx.c
+++ b/drivers/tty/serial/imx.c
@@ -2221,8 +2221,8 @@ static int imx_uart_probe(struct platform_device *pdev)
return PTR_ERR(base);
rxirq = platform_get_irq(pdev, 0);
- txirq = platform_get_irq(pdev, 1);
- rtsirq = platform_get_irq(pdev, 2);
+ txirq = platform_get_irq_optional(pdev, 1);
+ rtsirq = platform_get_irq_optional(pdev, 2);
sport->port.dev = &pdev->dev;
sport->port.mapbase = res->start;
--
2.7.4
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