[PATCH] extcon: usbc-tusb320: Set interrupt polarity based on device-tree

From: Lukas Funke
Date: Tue Nov 21 2023 - 07:49:01 EST


From: Lukas Funke <Lukas.Funke@xxxxxxxxxxxxxxx>

Remove 'IRQF_TRIGGER_FALLING' request which is not allowed on
every interrupt controller (i.e. arm64 GIC). Replace flag by a
request that depends on the actual device-tree setting.

Signed-off-by: Lukas Funke <lukas.funke@xxxxxxxxxxxxxxx>
---
drivers/extcon/extcon-usbc-tusb320.c | 12 +++++++++++-
1 file changed, 11 insertions(+), 1 deletion(-)

diff --git a/drivers/extcon/extcon-usbc-tusb320.c b/drivers/extcon/extcon-usbc-tusb320.c
index 4d08c2123e59..f7d699a90f72 100644
--- a/drivers/extcon/extcon-usbc-tusb320.c
+++ b/drivers/extcon/extcon-usbc-tusb320.c
@@ -515,6 +515,8 @@ static int tusb320_probe(struct i2c_client *client)
const void *match_data;
unsigned int revision;
int ret;
+ int irq_pol;
+ struct irq_data *irq_d;

priv = devm_kzalloc(&client->dev, sizeof(*priv), GFP_KERNEL);
if (!priv)
@@ -568,9 +570,17 @@ static int tusb320_probe(struct i2c_client *client)
*/
tusb320_state_update_handler(priv, true);

+ irq_d = irq_get_irq_data(client->irq);
+ if (!irq_d) {
+ dev_err(&client->dev, "Invalid IRQ: %d\n", client->irq);
+ return -ENODEV;
+ }
+
+ irq_pol = irqd_get_trigger_type(irq_d);
+
ret = devm_request_threaded_irq(priv->dev, client->irq, NULL,
tusb320_irq_handler,
- IRQF_TRIGGER_FALLING | IRQF_ONESHOT,
+ IRQF_ONESHOT | irq_pol,
client->name, priv);
if (ret)
tusb320_typec_remove(priv);
--
2.30.2