Hi,
addressing this email to you all since there might be widespread race
condition issue in the DRM panel drivers that are using MIPI DSI. See
below for my message.
Andrzej Hajda:
>> +static int s6e8aa0_set_brightness(struct backlight_device *bd)
>> +{
>> +struct s6e8aa0 *ctx =
Hi Joonas.
On Sat, Apr 04, 2020 at 04:27:02PM +0300, Joonas Kylmälä wrote:
> Hi,
>
> addressing this email to you all since there might be widespread race
> condition issue in the DRM panel drivers that are using MIPI DSI. See
> below for my message.
>
> Andrzej Hajda:
> >> +static int
On Sat, Apr 4, 2020 at 3:27 PM Joonas Kylmälä wrote:
>
> Hi,
>
> addressing this email to you all since there might be widespread race
> condition issue in the DRM panel drivers that are using MIPI DSI. See
> below for my message.
>
> Andrzej Hajda:
> >> +static int s6e8aa0_set_brightness(struct
Hi,
thanks a lot for the review, Andrzej!
Andrzej Hajda:
>> +static const struct backlight_ops s6e8aa0_backlight_ops = {
>> +.update_status = s6e8aa0_set_brightness,
>
>
> This is racy, update_status can be called in any time between probe and
> remove, particularly:
>
> a) before panel
Hi Joonas,
On 21.09.2019 14:48, Joonas Kylmälä wrote:
> This makes the backlight brightness controllable from the
> userspace.
>
> Signed-off-by: Joonas Kylmälä
> ---
> drivers/gpu/drm/panel/panel-samsung-s6e8aa0.c | 82
> ---
> 1 file changed, 60 insertions(+), 22
This makes the backlight brightness controllable from the
userspace.
Signed-off-by: Joonas Kylmälä
---
drivers/gpu/drm/panel/panel-samsung-s6e8aa0.c | 82 ---
1 file changed, 60 insertions(+), 22 deletions(-)
diff --git a/drivers/gpu/drm/panel/panel-samsung-s6e8aa0.c
