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

Message ID 05a878d340251b781387db4b6490f288e41a651c.1680543810.git.william.gray@linaro.org
State Accepted
Commit 01407940f9cd3bd87f3b707f7175f6f41ac1238b
Headers show
Series Fix possible deadlocks for i8255 GPIO drivers | expand

Commit Message

William Breathitt Gray April 3, 2023, 5:53 p.m. UTC 
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@linaro.org>
---
 drivers/gpio/gpio-104-dio-48e.c | 1 +
 1 file changed, 1 insertion(+)
diff mbox series

Patch

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 */