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Message-Id: <20201127101953.23700-1-alexander.sverdlin@nokia.com>
Date: Fri, 27 Nov 2020 11:19:53 +0100
From: Alexander A Sverdlin <alexander.sverdlin@...ia.com>
To: linux-serial@...r.kernel.org
Cc: Alexander Sverdlin <alexander.sverdlin@...ia.com>,
Peter Korsgaard <jacmet@...site.dk>,
Greg Kroah-Hartman <gregkh@...uxfoundation.org>,
Jiri Slaby <jirislaby@...nel.org>, linux-kernel@...r.kernel.org
Subject: [PATCH] tty: serial: uartlite: Support probe deferral
From: Alexander Sverdlin <alexander.sverdlin@...ia.com>
Give uartlite a chance to be probed when IRQ controller will be finally
available and return potential -EPROBE_DEFER as-is. The condition "<="
has been changed to "<" to follow the recommendation in the header of
platform_get_irq().
Signed-off-by: Alexander Sverdlin <alexander.sverdlin@...ia.com>
---
drivers/tty/serial/uartlite.c | 4 ++--
1 file changed, 2 insertions(+), 2 deletions(-)
diff --git a/drivers/tty/serial/uartlite.c b/drivers/tty/serial/uartlite.c
index 09379db..f42ccc4 100644
--- a/drivers/tty/serial/uartlite.c
+++ b/drivers/tty/serial/uartlite.c
@@ -773,8 +773,8 @@ static int ulite_probe(struct platform_device *pdev)
return -ENODEV;
irq = platform_get_irq(pdev, 0);
- if (irq <= 0)
- return -ENXIO;
+ if (irq < 0)
+ return irq;
pdata->clk = devm_clk_get(&pdev->dev, "s_axi_aclk");
if (IS_ERR(pdata->clk)) {
--
2.10.2
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