linux-kernel - [PATCH 3/3] regulator: da9062: Make the use of IRQ optional

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Date:   Tue, 22 Nov 2022 10:58:33 +0100
From:   Christoph Niedermaier <cniedermaier@...electronics.com>
To:     <linux-arm-kernel@...ts.infradead.org>
CC:     Christoph Niedermaier <cniedermaier@...electronics.com>,
        "Support Opensource" <support.opensource@...semi.com>,
        Adam Thomson <Adam.Thomson.Opensource@...semi.com>,
        Liam Girdwood <lgirdwood@...il.com>,
        Mark Brown <broonie@...nel.org>, Marek Vasut <marex@...x.de>,
        <kernel@...electronics.com>, <linux-kernel@...r.kernel.org>
Subject: [PATCH 3/3] regulator: da9062: Make the use of IRQ optional

This patch makes the use of IRQ optional to make the DA9061/62 usable
for designs that don't have the IRQ pin connected, because the regulator
is usable without IRQ.

Signed-off-by: Christoph Niedermaier <cniedermaier@...electronics.com>
---
Cc: Support Opensource <support.opensource@...semi.com>
Cc: Adam Thomson <Adam.Thomson.Opensource@...semi.com>
Cc: Liam Girdwood <lgirdwood@...il.com>
Cc: Mark Brown <broonie@...nel.org>
Cc: Marek Vasut <marex@...x.de>
Cc: kernel@...electronics.com
Cc: linux-kernel@...r.kernel.org
To: linux-arm-kernel@...ts.infradead.org
---
 drivers/regulator/da9062-regulator.c | 7 +++----
 1 file changed, 3 insertions(+), 4 deletions(-)

diff --git a/drivers/regulator/da9062-regulator.c b/drivers/regulator/da9062-regulator.c
index 1a6324001027..653e1844dd61 100644
--- a/drivers/regulator/da9062-regulator.c
+++ b/drivers/regulator/da9062-regulator.c
@@ -1012,10 +1012,9 @@ static int da9062_regulator_probe(struct platform_device *pdev)
 	}
 
 	/* LDOs overcurrent event support */
-	irq = platform_get_irq_byname(pdev, "LDO_LIM");
-	if (irq < 0)
-		return irq;
-	regulators->irq_ldo_lim = irq;
+	regulators->irq_ldo_lim = platform_get_irq_byname_optional(pdev, "LDO_LIM");
+	if (regulators->irq_ldo_lim < 0)
+		return 0;
 
 	ret = devm_request_threaded_irq(&pdev->dev, irq,
 					NULL, da9062_ldo_lim_event,
-- 
2.11.0