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authorShubhrajyoti Datta <shubhrajyoti.datta@xilinx.com>2020-06-17 17:07:25 +0530
committerBartosz Golaszewski <bgolaszewski@baylibre.com>2020-06-24 12:16:39 +0200
commit26ebdbf8c2e311759d88c0b0cf26126715e932c6 (patch)
treebb1c6717ca83278b70fd9cf5dfda9b1de838039c /drivers/gpio/gpio-zynq.c
parent675002448eee5a9f96bfeb9b057e12a60a004b6c (diff)
downloadlinux-26ebdbf8c2e311759d88c0b0cf26126715e932c6.tar.bz2
gpio: zynq: Disable the irq if it is not a wakeup source
If gpio is not set to wake disable the interrupt. ATF set all slaves with enabled interrupts as wakeup sources and if gpio is used in r5 then it wakes up linux. Signed-off-by: Shubhrajyoti Datta <shubhrajyoti.datta@xilinx.com> Signed-off-by: Michal Simek <michal.simek@xilinx.com> Signed-off-by: Bartosz Golaszewski <bgolaszewski@baylibre.com>
Diffstat (limited to 'drivers/gpio/gpio-zynq.c')
-rw-r--r--drivers/gpio/gpio-zynq.c8
1 files changed, 8 insertions, 0 deletions
diff --git a/drivers/gpio/gpio-zynq.c b/drivers/gpio/gpio-zynq.c
index 9ac69144a0eb..b6261a3aec55 100644
--- a/drivers/gpio/gpio-zynq.c
+++ b/drivers/gpio/gpio-zynq.c
@@ -735,6 +735,9 @@ static int __maybe_unused zynq_gpio_suspend(struct device *dev)
struct zynq_gpio *gpio = dev_get_drvdata(dev);
struct irq_data *data = irq_get_irq_data(gpio->irq);
+ if (!device_may_wakeup(dev))
+ disable_irq(gpio->irq);
+
if (!irqd_is_wakeup_set(data)) {
zynq_gpio_save_context(gpio);
return pm_runtime_force_suspend(dev);
@@ -749,6 +752,9 @@ static int __maybe_unused zynq_gpio_resume(struct device *dev)
struct irq_data *data = irq_get_irq_data(gpio->irq);
int ret;
+ if (!device_may_wakeup(dev))
+ enable_irq(gpio->irq);
+
if (!irqd_is_wakeup_set(data)) {
ret = pm_runtime_force_resume(dev);
zynq_gpio_restore_context(gpio);
@@ -956,6 +962,8 @@ static int zynq_gpio_probe(struct platform_device *pdev)
goto err_pm_put;
}
+ irq_set_status_flags(gpio->irq, IRQ_DISABLE_UNLAZY);
+ device_init_wakeup(&pdev->dev, 1);
pm_runtime_put(&pdev->dev);
return 0;