diff mbox series

[v2,06/15] ASoC: cs42l42: Remove power if the driver is being removed

Message ID 20210305173442.195740-7-tanureal@opensource.cirrus.com
State Accepted
Commit 2b869e0ea598263e0fd60872430899fa0660b2fa
Headers show
Series Report jack and button detection + Capture Support | expand

Commit Message

Lucas tanure March 5, 2021, 5:34 p.m. UTC
Ensure the power supplies are turned off when removing the driver

Signed-off-by: Lucas Tanure <tanureal@opensource.cirrus.com>
---
Changes in v2:
- Use PM functions to shutdown the codec
- Disable IRQ before pm_suspend

 sound/soc/codecs/cs42l42.c | 8 ++++----
 1 file changed, 4 insertions(+), 4 deletions(-)

--
2.30.1

Comments

Mark Brown March 5, 2021, 6:49 p.m. UTC | #1
On Fri, Mar 05, 2021 at 05:34:33PM +0000, Lucas Tanure wrote:

> -	/* Hold down reset */
> -	gpiod_set_value_cansleep(cs42l42->reset_gpio, 0);
> +	disable_irq(i2c_client->irq);
> +	pm_runtime_suspend(&i2c_client->dev);
> +	pm_runtime_disable(&i2c_client->dev);

You should be unregistering the interrupt, not disabling it - this will
better support any shared IRQ usage that appears and is much, much more
idiomatic.
diff mbox series

Patch

diff --git a/sound/soc/codecs/cs42l42.c b/sound/soc/codecs/cs42l42.c
index 811b7b1c9732e..78274537a22af 100644
--- a/sound/soc/codecs/cs42l42.c
+++ b/sound/soc/codecs/cs42l42.c
@@ -25,6 +25,7 @@ 
 #include <linux/of.h>
 #include <linux/of_gpio.h>
 #include <linux/of_device.h>
+#include <linux/pm_runtime.h>
 #include <sound/core.h>
 #include <sound/pcm.h>
 #include <sound/pcm_params.h>
@@ -1840,10 +1841,9 @@  static int cs42l42_i2c_probe(struct i2c_client *i2c_client,

 static int cs42l42_i2c_remove(struct i2c_client *i2c_client)
 {
-	struct cs42l42_private *cs42l42 = i2c_get_clientdata(i2c_client);
-
-	/* Hold down reset */
-	gpiod_set_value_cansleep(cs42l42->reset_gpio, 0);
+	disable_irq(i2c_client->irq);
+	pm_runtime_suspend(&i2c_client->dev);
+	pm_runtime_disable(&i2c_client->dev);

 	return 0;
 }