linux-kernel - [PATCH V3 1/1] input: gpio-keys: add support for disable button from DT

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Date:	Wed, 13 Jan 2016 12:56:20 +0530
From:	Laxman Dewangan <ldewangan@...dia.com>
To:	<robh+dt@...nel.org>, <dmitry.torokhov@...il.com>,
	<pawel.moll@....com>, <mark.rutland@....com>
CC:	<galak@...eaurora.org>, <devicetree@...r.kernel.org>,
	<linux-kernel@...r.kernel.org>, <linux-input@...r.kernel.org>,
	<linus.walleij@...aro.org>, <bjorn.andersson@...ymobile.com>,
	Laxman Dewangan <ldewangan@...dia.com>
Subject: [PATCH V3 1/1] input: gpio-keys: add support for disable button from DT

Add support to disable the button from DT via status property
if given button is not supporting on given platforms.

This will help to re-use the existing dtsi file with status
enable/disable across platforms.

Signed-off-by: Laxman Dewangan <ldewangan@...dia.com>
---
Changes from V1: 
- Converted print to dev_dbg.
Changes from V2:
- use of_get_available_child_count() and for_each_available_child_of_node()

 drivers/input/keyboard/gpio_keys.c | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/drivers/input/keyboard/gpio_keys.c b/drivers/input/keyboard/gpio_keys.c
index bef317f..ef6ca1c 100644
--- a/drivers/input/keyboard/gpio_keys.c
+++ b/drivers/input/keyboard/gpio_keys.c
@@ -613,7 +613,7 @@ gpio_keys_get_devtree_pdata(struct device *dev)
 	if (!node)
 		return ERR_PTR(-ENODEV);
 
-	nbuttons = of_get_child_count(node);
+	nbuttons = of_get_available_child_count(node);
 	if (nbuttons == 0)
 		return ERR_PTR(-ENODEV);
 
@@ -629,7 +629,7 @@ gpio_keys_get_devtree_pdata(struct device *dev)
 	pdata->rep = !!of_get_property(node, "autorepeat", NULL);
 
 	i = 0;
-	for_each_child_of_node(node, pp) {
+	for_each_available_child_of_node(node, pp) {
 		enum of_gpio_flags flags;
 
 		button = &pdata->buttons[i++];
-- 
2.1.4