diff mbox series

[PATCH:,V2,1/2] gpio: tc35894: fix up tc35894 interrupt configuration

Message ID 1599118222-18990-2-git-send-email-dillon.minfei@gmail.com
State New
Headers show
Series Fix TC35894 gpio interrupt bug | expand

Commit Message

Dillon Min Sept. 3, 2020, 7:30 a.m. UTC 
From: dillon min <dillon.minfei@gmail.com>

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")
Signed-off-by: dillon min <dillon.minfei@gmail.com>
---

Hi, Bartosz

Just change Fixes tag.

Thanks.
Dillon

 drivers/gpio/gpio-tc3589x.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

Comments

Bartosz Golaszewski Sept. 9, 2020, 9:34 a.m. UTC | #1 
On Thu, Sep 3, 2020 at 9:30 AM <dillon.minfei@gmail.com> wrote:
>
> From: dillon min <dillon.minfei@gmail.com>
>
> 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")
> Signed-off-by: dillon min <dillon.minfei@gmail.com>
> ---
>

Queued for fixes.

Thanks!
Bartosz
diff mbox series

Patch

diff --git a/drivers/gpio/gpio-tc3589x.c b/drivers/gpio/gpio-tc3589x.c
index 58b0da9eb76f..ea3f68a28fea 100644
--- a/drivers/gpio/gpio-tc3589x.c
+++ b/drivers/gpio/gpio-tc3589x.c
@@ -212,7 +212,7 @@  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);
 		}
 	}