redonkable
/
alistair23-linux
1
0
Fork 0
Code Releases Activity

gpio: tc35894: fix up tc35894 interrupt configuration 

commit 214b0e1ad0 upstream.

The offset of regmap is incorrect, j * 8 is move to the
wrong register.

for example:

asume i = 0, j = 1. we want to set KPY5 as interrupt
falling edge mode, regmap[0][1] should be TC3589x_GPIOIBE1 0xcd
but, regmap[i] + j * 8 = TC3589x_GPIOIBE0 + 8 ,point to 0xd4,
this is TC3589x_GPIOIE2 not TC3589x_GPIOIBE1.

Fixes: d88b25be35 ("gpio: Add TC35892 GPIO driver")
Cc: Cc: stable@vger.kernel.org
Signed-off-by: dillon min <dillon.minfei@gmail.com>
Signed-off-by: Bartosz Golaszewski <bgolaszewski@baylibre.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
5.4-rM2-2.2.x-imx-squashed
dillon min 2020-09-03 15:30:21 +08:00 committed by Greg Kroah-Hartman
parent 035f59ad4b
commit 79c8ebdce5
1 changed files with 1 additions and 1 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

2
drivers/gpio/gpio-tc3589x.c
View File

@ -209,7 +209,7 @@ static void tc3589x_gpio_irq_sync_unlock(struct irq_data *d)
continue;
tc3589x_gpio->oldregs[i][j] = new;
tc3589x_reg_write(tc3589x, regmap[i] + j * 8, new);
tc3589x_reg_write(tc3589x, regmap[i] + j, new);
}
}