70 lines
1.9 KiB
Diff
70 lines
1.9 KiB
Diff
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From 41741b36bff4a3869cb412e3d878f90696a362e6 Mon Sep 17 00:00:00 2001
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From: Ondrej Jirman <megous@megous.com>
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Date: Tue, 22 Oct 2019 00:15:41 +0200
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Subject: [PATCH 044/351] input: sun4i-lradc-keys: Add wakup support
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Allow the driver to wakeup the system on key press.
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Signed-off-by: Ondrej Jirman <megous@megous.com>
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---
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drivers/input/keyboard/sun4i-lradc-keys.c | 22 ++++++++++++++++++----
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1 file changed, 18 insertions(+), 4 deletions(-)
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diff --git a/drivers/input/keyboard/sun4i-lradc-keys.c b/drivers/input/keyboard/sun4i-lradc-keys.c
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index 4a796bed48ac..bba679d7b54b 100644
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--- a/drivers/input/keyboard/sun4i-lradc-keys.c
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+++ b/drivers/input/keyboard/sun4i-lradc-keys.c
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@@ -22,6 +22,8 @@
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#include <linux/module.h>
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#include <linux/of_platform.h>
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#include <linux/platform_device.h>
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+#include <linux/pm_wakeirq.h>
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+#include <linux/pm_wakeup.h>
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#include <linux/regulator/consumer.h>
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#include <linux/slab.h>
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@@ -226,8 +228,7 @@ static int sun4i_lradc_probe(struct platform_device *pdev)
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{
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struct sun4i_lradc_data *lradc;
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struct device *dev = &pdev->dev;
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- int i;
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- int error;
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+ int i, error, irq;
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lradc = devm_kzalloc(dev, sizeof(struct sun4i_lradc_data), GFP_KERNEL);
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if (!lradc)
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@@ -272,8 +273,13 @@ static int sun4i_lradc_probe(struct platform_device *pdev)
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if (IS_ERR(lradc->base))
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return PTR_ERR(lradc->base);
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- error = devm_request_irq(dev, platform_get_irq(pdev, 0),
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- sun4i_lradc_irq, 0,
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+ irq = platform_get_irq(pdev, 0);
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+ if (irq < 0) {
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+ dev_err(&pdev->dev, "Failed to get IRQ\n");
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+ return irq;
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+ }
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+
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+ error = devm_request_irq(dev, irq, sun4i_lradc_irq, 0,
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"sun4i-a10-lradc-keys", lradc);
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if (error)
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return error;
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@@ -282,6 +288,14 @@ static int sun4i_lradc_probe(struct platform_device *pdev)
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if (error)
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return error;
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+ device_init_wakeup(dev, true);
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+
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+ error = dev_pm_set_wake_irq(dev, irq);
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+ if (error) {
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+ dev_err(dev, "Could not set wake IRQ\n");
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+ return error;
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+ }
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+
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return 0;
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}
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--
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2.34.0
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