regmap: irq: enable wake support by default

regmap-irq framework is used vastly by mfd drivers and some of
devices like TPS65910, TPS80036 do not support the wake base
register to enable wake.

Currently wake in regmap-irq only supported if client driver
passes the wake base register.

As the regmap-irq is mostly used by mfd devices and it is require
to have wake support from these devices in most of use cases,
enabling wake support by default in regmap-irq.

Signed-off-by: Laxman Dewangan <ldewangan@nvidia.com>
Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>

1 files changed, 6 insertions, 12 deletions

diff --git a/drivers/base/regmap/regmap-irq.c b/drivers/base/regmap/regmap-irq.c
index 5972ad958544..91294935130e 100644
--- a/drivers/base/regmap/regmap-irq.c
+++ b/drivers/base/regmap/regmap-irq.c
@@ -129,16 +129,15 @@ static int regmap_irq_set_wake(struct irq_data *data, unsigned int on)
         struct regmap *map = d->map;
         const struct regmap_irq *irq_data = irq_to_regmap_irq(d, data->hwirq);
 
-        if (!d->chip->wake_base)
-                return -EINVAL;
-
         if (on) {
-                d->wake_buf[irq_data->reg_offset / map->reg_stride]
-                        &= ~irq_data->mask;
+                if (d->wake_buf)
+                        d->wake_buf[irq_data->reg_offset / map->reg_stride]
+                                &= ~irq_data->mask;
                 d->wake_count++;
         } else {
-                d->wake_buf[irq_data->reg_offset / map->reg_stride]
-                        |= irq_data->mask;
+                if (d->wake_buf)
+                        d->wake_buf[irq_data->reg_offset / map->reg_stride]
+                                |= irq_data->mask;
                 d->wake_count--;
         }
 
@@ -316,11 +315,6 @@ int regmap_add_irq_chip(struct regmap *map, int irq, int irq_flags,
 
         d->irq_chip = regmap_irq_chip;
         d->irq_chip.name = chip->name;
-        if (!chip->wake_base) {
-                d->irq_chip.irq_set_wake = NULL;
-                d->irq_chip.flags |= IRQCHIP_MASK_ON_SUSPEND |
-                                     IRQCHIP_SKIP_SET_WAKE;
-        }
         d->irq = irq;
         d->map = map;
         d->chip = chip;