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path: root/drivers/irqchip/irq-renesas-intc-irqpin.c
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Diffstat (limited to 'drivers/irqchip/irq-renesas-intc-irqpin.c')
-rw-r--r--drivers/irqchip/irq-renesas-intc-irqpin.c40
1 files changed, 16 insertions, 24 deletions
diff --git a/drivers/irqchip/irq-renesas-intc-irqpin.c b/drivers/irqchip/irq-renesas-intc-irqpin.c
index cee59fe1321c..c6e6c9e9137a 100644
--- a/drivers/irqchip/irq-renesas-intc-irqpin.c
+++ b/drivers/irqchip/irq-renesas-intc-irqpin.c
@@ -17,7 +17,6 @@
* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
*/
-#include <linux/clk.h>
#include <linux/init.h>
#include <linux/of.h>
#include <linux/platform_device.h>
@@ -78,16 +77,14 @@ struct intc_irqpin_priv {
struct platform_device *pdev;
struct irq_chip irq_chip;
struct irq_domain *irq_domain;
- struct clk *clk;
+ atomic_t wakeup_path;
unsigned shared_irqs:1;
- unsigned needs_clk:1;
u8 shared_irq_mask;
};
struct intc_irqpin_config {
unsigned int irlm_bit;
unsigned needs_irlm:1;
- unsigned needs_clk:1;
};
static unsigned long intc_irqpin_read32(void __iomem *iomem)
@@ -287,14 +284,10 @@ static int intc_irqpin_irq_set_wake(struct irq_data *d, unsigned int on)
int hw_irq = irqd_to_hwirq(d);
irq_set_irq_wake(p->irq[hw_irq].requested_irq, on);
-
- if (!p->clk)
- return 0;
-
if (on)
- clk_enable(p->clk);
+ atomic_inc(&p->wakeup_path);
else
- clk_disable(p->clk);
+ atomic_dec(&p->wakeup_path);
return 0;
}
@@ -369,12 +362,10 @@ static const struct irq_domain_ops intc_irqpin_irq_domain_ops = {
static const struct intc_irqpin_config intc_irqpin_irlm_r8a777x = {
.irlm_bit = 23, /* ICR0.IRLM0 */
.needs_irlm = 1,
- .needs_clk = 0,
};
static const struct intc_irqpin_config intc_irqpin_rmobile = {
.needs_irlm = 0,
- .needs_clk = 1,
};
static const struct of_device_id intc_irqpin_dt_ids[] = {
@@ -426,18 +417,6 @@ static int intc_irqpin_probe(struct platform_device *pdev)
platform_set_drvdata(pdev, p);
config = of_device_get_match_data(dev);
- if (config)
- p->needs_clk = config->needs_clk;
-
- p->clk = devm_clk_get(dev, NULL);
- if (IS_ERR(p->clk)) {
- if (p->needs_clk) {
- dev_err(dev, "unable to get clock\n");
- ret = PTR_ERR(p->clk);
- goto err0;
- }
- p->clk = NULL;
- }
pm_runtime_enable(dev);
pm_runtime_get_sync(dev);
@@ -606,12 +585,25 @@ static int intc_irqpin_remove(struct platform_device *pdev)
return 0;
}
+static int __maybe_unused intc_irqpin_suspend(struct device *dev)
+{
+ struct intc_irqpin_priv *p = dev_get_drvdata(dev);
+
+ if (atomic_read(&p->wakeup_path))
+ device_set_wakeup_path(dev);
+
+ return 0;
+}
+
+static SIMPLE_DEV_PM_OPS(intc_irqpin_pm_ops, intc_irqpin_suspend, NULL);
+
static struct platform_driver intc_irqpin_device_driver = {
.probe = intc_irqpin_probe,
.remove = intc_irqpin_remove,
.driver = {
.name = "renesas_intc_irqpin",
.of_match_table = intc_irqpin_dt_ids,
+ .pm = &intc_irqpin_pm_ops,
}
};