torvalds/linux
3
0
Fork 0
mirror of git://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git synced 2026-03-22 07:27:12 +08:00
Code Issues Packages Projects Releases Wiki Activity

gpio: pca953x: mask interrupts in irq shutdown

Browse Source 
In the existing implementation irq_shutdown does not mask the interrupts
in hardware. This can cause spurious interrupts from the IO expander.
Add masking to irq_shutdown to prevent spurious interrupts.

Cc: stable@vger.kernel.org
Signed-off-by: Martin Larsson <martin.larsson@actia.se>
Reviewed-by: Linus Walleij <linusw@kernel.org>
Link: https://lore.kernel.org/r/20260121125631.2758346-1-martin.larsson@actia.se
Signed-off-by: Bartosz Golaszewski <bartosz.golaszewski@oss.qualcomm.com>
This commit is contained in:
Martin Larsson
2026-01-21 12:57:22 +00:00
committed by Bartosz Golaszewski
parent 53ad4a948a
commit d02f20a4de
1 changed files with 2 additions and 0 deletions
Download Patch File Download Diff File Expand all files Collapse all files

2
drivers/gpio/gpio-pca953x.c
View File

@@ -914,6 +914,8 @@ static void pca953x_irq_shutdown(struct irq_data *d)
clear_bit(hwirq, chip->irq_trig_fall);
clear_bit(hwirq, chip->irq_trig_level_low);
clear_bit(hwirq, chip->irq_trig_level_high);
pca953x_irq_mask(d);
}
static void pca953x_irq_print_chip(struct irq_data *data, struct seq_file *p)