gpio: tc35894: fix up tc35894 interrupt configuration

commit 214b0e1ad01abf4c1f6d8d28fa096bf167e47cef 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: d88b25be3584 ("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>

diff --git a/drivers/gpio/gpio-tc3589x.c b/drivers/gpio/gpio-tc3589x.c
index 433b45ef332e59b72a0ff34543d27a581f6d2940..6dd2ee89bca4fbc11d4b8a342182b3d3db0ac8f7 100644 (file)
--- a/drivers/gpio/gpio-tc3589x.c
+++ b/drivers/gpio/gpio-tc3589x.c
@@ -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);
                }
        }