linux-kernel - [PATCH 1/2] mfd: stmpe: DT: Enable no-irq mode configuration

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Date:	Fri, 1 Mar 2013 13:07:16 +0100
From:	Linus Walleij <linus.walleij@...ricsson.com>
To:	Samuel Ortiz <sameo@...ux.intel.com>,
	<linux-kernel@...r.kernel.org>
Cc:	Anmar Oueja <anmar.oueja@...aro.org>,
	Gabriel Fernandez <gabriel.fernandez@...ricsson.com>,
	<devicetree-discuss@...ts.ozlabs.org>,
	Linus Walleij <linus.walleij@...aro.org>
Subject: [PATCH 1/2] mfd: stmpe: DT: Enable no-irq mode configuration

From: Gabriel Fernandez <gabriel.fernandez@...ricsson.com>

If there is no interrupt property into stmpe node
then activate the no-irq mode by setting the irq
value to -1.

Cc: devicetree-discuss@...ts.ozlabs.org
Signed-off-by: Gabriel Fernandez <gabriel.fernandez@...ricsson.com>
Signed-off-by: Linus Walleij <linus.walleij@...aro.org>
---
 drivers/mfd/stmpe.c | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/drivers/mfd/stmpe.c b/drivers/mfd/stmpe.c
index 4b11202..e550dcb 100644
--- a/drivers/mfd/stmpe.c
+++ b/drivers/mfd/stmpe.c
@@ -1057,6 +1057,9 @@ int stmpe_probe(struct stmpe_client_info *ci, int partnum)
 			return -ENOMEM;
 
 		stmpe_of_probe(pdata, np);
+
+		if (of_find_property(np, "interrupts", NULL) == NULL)
+			ci->irq = -1;
 	}
 
 	stmpe = devm_kzalloc(ci->dev, sizeof(struct stmpe), GFP_KERNEL);
-- 
1.7.11.3

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