diff mbox series

usb: typec: ucsi: fix gpio-based orientation detection

Message ID 20231208123603.29957-1-johan+linaro@kernel.org
State New
Headers
Series usb: typec: ucsi: fix gpio-based orientation detection |

Commit Message

Johan Hovold Dec. 8, 2023, 12:36 p.m. UTC 
  Fix the recently added connector sanity check which was off by one and
prevented orientation notifications from being handled correctly for the
second port when using GPIOs to determine orientation.

Fixes: c6165ed2f425 ("usb: ucsi: glink: use the connector orientation GPIO to provide switch events")
Cc: Neil Armstrong <neil.armstrong@linaro.org>
Signed-off-by: Johan Hovold <johan+linaro@kernel.org>
---

I found this one through inspection when skimming the driver.

Johan


 drivers/usb/typec/ucsi/ucsi_glink.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

Comments

Dmitry Baryshkov Dec. 8, 2023, 12:37 p.m. UTC | #1 
On Fri, 8 Dec 2023 at 14:37, Johan Hovold <johan+linaro@kernel.org> wrote:
>
> Fix the recently added connector sanity check which was off by one and
> prevented orientation notifications from being handled correctly for the
> second port when using GPIOs to determine orientation.
>
> Fixes: c6165ed2f425 ("usb: ucsi: glink: use the connector orientation GPIO to provide switch events")
> Cc: Neil Armstrong <neil.armstrong@linaro.org>
> Signed-off-by: Johan Hovold <johan+linaro@kernel.org>

Reviewed-by: Dmitry Baryshkov <dmitry.baryshkov@linaro.org>

> ---
>
> I found this one through inspection when skimming the driver.
>
> Johan
>
>
>  drivers/usb/typec/ucsi/ucsi_glink.c | 2 +-
>  1 file changed, 1 insertion(+), 1 deletion(-)
>
> diff --git a/drivers/usb/typec/ucsi/ucsi_glink.c b/drivers/usb/typec/ucsi/ucsi_glink.c
> index db6e248f8208..4853141cd10c 100644
> --- a/drivers/usb/typec/ucsi/ucsi_glink.c
> +++ b/drivers/usb/typec/ucsi/ucsi_glink.c
> @@ -228,7 +228,7 @@ static void pmic_glink_ucsi_notify(struct work_struct *work)
>
>         con_num = UCSI_CCI_CONNECTOR(cci);
>         if (con_num) {
> -               if (con_num < PMIC_GLINK_MAX_PORTS &&
> +               if (con_num <= PMIC_GLINK_MAX_PORTS &&
>                     ucsi->port_orientation[con_num - 1]) {
>                         int orientation = gpiod_get_value(ucsi->port_orientation[con_num - 1]);
>
> --
> 2.41.0
>
Heikki Krogerus Dec. 8, 2023, 1:56 p.m. UTC | #2 
On Fri, Dec 08, 2023 at 01:36:02PM +0100, Johan Hovold wrote:
> Fix the recently added connector sanity check which was off by one and
> prevented orientation notifications from being handled correctly for the
> second port when using GPIOs to determine orientation.
> 
> Fixes: c6165ed2f425 ("usb: ucsi: glink: use the connector orientation GPIO to provide switch events")
> Cc: Neil Armstrong <neil.armstrong@linaro.org>
> Signed-off-by: Johan Hovold <johan+linaro@kernel.org>

Reviewed-by: Heikki Krogerus <heikki.krogerus@linux.intel.com>

> ---
> 
> I found this one through inspection when skimming the driver.
> 
> Johan
> 
> 
>  drivers/usb/typec/ucsi/ucsi_glink.c | 2 +-
>  1 file changed, 1 insertion(+), 1 deletion(-)
> 
> diff --git a/drivers/usb/typec/ucsi/ucsi_glink.c b/drivers/usb/typec/ucsi/ucsi_glink.c
> index db6e248f8208..4853141cd10c 100644
> --- a/drivers/usb/typec/ucsi/ucsi_glink.c
> +++ b/drivers/usb/typec/ucsi/ucsi_glink.c
> @@ -228,7 +228,7 @@ static void pmic_glink_ucsi_notify(struct work_struct *work)
>  
>  	con_num = UCSI_CCI_CONNECTOR(cci);
>  	if (con_num) {
> -		if (con_num < PMIC_GLINK_MAX_PORTS &&
> +		if (con_num <= PMIC_GLINK_MAX_PORTS &&
>  		    ucsi->port_orientation[con_num - 1]) {
>  			int orientation = gpiod_get_value(ucsi->port_orientation[con_num - 1]);
>  
> -- 
> 2.41.0
diff mbox series

Patch

diff --git a/drivers/usb/typec/ucsi/ucsi_glink.c b/drivers/usb/typec/ucsi/ucsi_glink.c
index db6e248f8208..4853141cd10c 100644
--- a/drivers/usb/typec/ucsi/ucsi_glink.c
+++ b/drivers/usb/typec/ucsi/ucsi_glink.c
@@ -228,7 +228,7 @@  static void pmic_glink_ucsi_notify(struct work_struct *work)
 
 	con_num = UCSI_CCI_CONNECTOR(cci);
 	if (con_num) {
-		if (con_num < PMIC_GLINK_MAX_PORTS &&
+		if (con_num <= PMIC_GLINK_MAX_PORTS &&
 		    ucsi->port_orientation[con_num - 1]) {
 			int orientation = gpiod_get_value(ucsi->port_orientation[con_num - 1]);