From: Laxman Dewangan <ldewangan@nvidia.com>
To: robh+dt@kernel.org, dmitry.torokhov@gmail.com
Cc: pawel.moll@arm.com, mark.rutland@arm.com,
ijc+devicetree@hellion.org.uk, galak@codeaurora.org,
linus.walleij@linaro.org, bjorn.andersson@sonymobile.com,
devicetree@vger.kernel.org, linux-kernel@vger.kernel.org,
linux-input@vger.kernel.org,
Laxman Dewangan <ldewangan@nvidia.com>
Subject: [PATCH 1/2] input: gpio-keys: add support for disable button from DT
Date: Tue, 12 Jan 2016 17:02:49 +0530 [thread overview]
Message-ID: <1452598370-28509-1-git-send-email-ldewangan@nvidia.com> (raw)
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@nvidia.com>
---
drivers/input/keyboard/gpio_keys.c | 8 ++++++++
1 file changed, 8 insertions(+)
diff --git a/drivers/input/keyboard/gpio_keys.c b/drivers/input/keyboard/gpio_keys.c
index bef317f..cf068cb 100644
--- a/drivers/input/keyboard/gpio_keys.c
+++ b/drivers/input/keyboard/gpio_keys.c
@@ -632,6 +632,14 @@ gpio_keys_get_devtree_pdata(struct device *dev)
for_each_child_of_node(node, pp) {
enum of_gpio_flags flags;
+ /* Ignore the button if status of node is disabled */
+ error = of_device_is_available(pp);
+ if (!error) {
+ dev_info(dev, "Button %s is ignored\n", pp->name);
+ pdata->nbuttons--;
+ continue;
+ }
+
button = &pdata->buttons[i++];
button->gpio = of_get_gpio_flags(pp, 0, &flags);
--
2.1.4
next reply other threads:[~2016-01-12 11:43 UTC|newest]
Thread overview: 8+ messages / expand[flat|nested] mbox.gz Atom feed top
2016-01-12 11:32 Laxman Dewangan [this message]
2016-01-12 11:32 ` [PATCH 2/2] input: gpio-keys: add support to name the gpio-keys Laxman Dewangan
2016-01-12 14:43 ` Rob Herring
2016-01-12 14:55 ` Laxman Dewangan
[not found] ` <569513E6.60608-DDmLM1+adcrQT0dZR+AlfA@public.gmane.org>
2016-01-12 15:23 ` Rob Herring
2016-01-12 15:24 ` Laxman Dewangan
2016-01-14 9:16 ` Linus Walleij
2016-01-12 21:19 ` [PATCH 1/2] input: gpio-keys: add support for disable button from DT Dmitry Torokhov
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