[PATCH 1/2] gpio: 104-dio-48e: Enable use_raw_spinlock for dio48e_regmap_config

From: William Breathitt Gray
Date: Mon Apr 03 2023 - 13:53:54 EST


The dio48e regmap can be used in an interrupt context by regmap-irq. To
prevent a deadlock, enable use_raw_spinlock for dio48e_regmap_config.

Fixes: 2f7e845f512f ("gpio: 104-dio-48e: Migrate to the regmap-irq API")
Signed-off-by: William Breathitt Gray <william.gray@xxxxxxxxxx>
---
drivers/gpio/gpio-104-dio-48e.c | 1 +
1 file changed, 1 insertion(+)

diff --git a/drivers/gpio/gpio-104-dio-48e.c b/drivers/gpio/gpio-104-dio-48e.c
index a3846faf3780..11c48130bb8f 100644
--- a/drivers/gpio/gpio-104-dio-48e.c
+++ b/drivers/gpio/gpio-104-dio-48e.c
@@ -86,6 +86,7 @@ static const struct regmap_config dio48e_regmap_config = {
.volatile_table = &dio48e_volatile_table,
.precious_table = &dio48e_precious_table,
.cache_type = REGCACHE_FLAT,
+ .use_raw_spinlock = true,
};

/* only bit 3 on each respective Port C supports interrupts */
--
2.39.2