From: Ondrej Jirman <megous@megous.com>
To: linux-sunxi@googlegroups.com
Cc: Ondrej Jirman <megous@megous.com>,
Hans de Goede <hdegoede@redhat.com>,
Dmitry Torokhov <dmitry.torokhov@gmail.com>,
Maxime Ripard <mripard@kernel.org>, Chen-Yu Tsai <wens@csie.org>,
linux-input@vger.kernel.org (open list:SUN4I LOW RES ADC
ATTACHED TABLET KEYS DRIVER),
linux-arm-kernel@lists.infradead.org (moderated
list:ARM/Allwinner sunXi SoC support),
linux-kernel@vger.kernel.org (open list)
Subject: [PATCH] input: sun4i-lradc-keys: Add wakup support
Date: Mon, 28 Oct 2019 23:15:02 +0100 [thread overview]
Message-ID: <20191028221502.3503543-1-megous@megous.com> (raw)
Allow the driver to wakeup the system on key press.
Signed-off-by: Ondrej Jirman <megous@megous.com>
---
drivers/input/keyboard/sun4i-lradc-keys.c | 22 ++++++++++++++++++----
1 file changed, 18 insertions(+), 4 deletions(-)
diff --git a/drivers/input/keyboard/sun4i-lradc-keys.c b/drivers/input/keyboard/sun4i-lradc-keys.c
index 4a796bed48ac..bba679d7b54b 100644
--- a/drivers/input/keyboard/sun4i-lradc-keys.c
+++ b/drivers/input/keyboard/sun4i-lradc-keys.c
@@ -22,6 +22,8 @@
#include <linux/module.h>
#include <linux/of_platform.h>
#include <linux/platform_device.h>
+#include <linux/pm_wakeirq.h>
+#include <linux/pm_wakeup.h>
#include <linux/regulator/consumer.h>
#include <linux/slab.h>
@@ -226,8 +228,7 @@ static int sun4i_lradc_probe(struct platform_device *pdev)
{
struct sun4i_lradc_data *lradc;
struct device *dev = &pdev->dev;
- int i;
- int error;
+ int i, error, irq;
lradc = devm_kzalloc(dev, sizeof(struct sun4i_lradc_data), GFP_KERNEL);
if (!lradc)
@@ -272,8 +273,13 @@ static int sun4i_lradc_probe(struct platform_device *pdev)
if (IS_ERR(lradc->base))
return PTR_ERR(lradc->base);
- error = devm_request_irq(dev, platform_get_irq(pdev, 0),
- sun4i_lradc_irq, 0,
+ irq = platform_get_irq(pdev, 0);
+ if (irq < 0) {
+ dev_err(&pdev->dev, "Failed to get IRQ\n");
+ return irq;
+ }
+
+ error = devm_request_irq(dev, irq, sun4i_lradc_irq, 0,
"sun4i-a10-lradc-keys", lradc);
if (error)
return error;
@@ -282,6 +288,14 @@ static int sun4i_lradc_probe(struct platform_device *pdev)
if (error)
return error;
+ device_init_wakeup(dev, true);
+
+ error = dev_pm_set_wake_irq(dev, irq);
+ if (error) {
+ dev_err(dev, "Could not set wake IRQ\n");
+ return error;
+ }
+
return 0;
}
--
2.23.0
next reply other threads:[~2019-10-28 22:15 UTC|newest]
Thread overview: 7+ messages / expand[flat|nested] mbox.gz Atom feed top
2019-10-28 22:15 Ondrej Jirman [this message]
2019-10-28 23:38 ` [PATCH] input: sun4i-lradc-keys: Add wakup support Dmitry Torokhov
2019-10-28 23:56 ` Ondřej Jirman
2019-10-29 0:12 ` Dmitry Torokhov
2019-10-29 1:45 ` [linux-sunxi] " Ondřej Jirman
2019-10-29 4:18 ` Dmitry Torokhov
2019-10-29 12:43 ` Ondřej Jirman
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