diff options
| author | Stephan Gerhold <stephan@gerhold.net> | 2019-11-06 19:58:29 +0300 |
|---|---|---|
| committer | Linus Walleij <linus.walleij@linaro.org> | 2019-11-10 00:18:21 +0300 |
| commit | 768859c239922264f91d8a49ff8b1b227e7ad7d9 (patch) | |
| tree | 6068a3bc6d9f3e6971347948a0bcfcd25bd6e953 /drivers/gpu/drm/mcde/mcde_drv.c | |
| parent | f4563f3cec404ebcead65987e8a97e0cbf1ff34d (diff) | |
| download | linux-768859c239922264f91d8a49ff8b1b227e7ad7d9.tar.xz | |
drm/mcde: Provide vblank handling unconditionally
At the moment, vblank handling is only enabled together with
TE synchronization. However, the vblank IRQ is also working with
on displays without TE synchronization (e.g. DSI video mode panels).
It seems like the vblank IRQ is actually generated by the
MCDE hardware for the channel.
Therefore, the vblank handling should be working correctly in
all the cases and we can enable it unconditionally.
Signed-off-by: Stephan Gerhold <stephan@gerhold.net>
Tested-by: Linus Walleij <linus.walleij@linaro.org>
Reviewed-by: Linus Walleij <linus.walleij@linaro.org>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
Link: https://patchwork.freedesktop.org/patch/msgid/20191106165835.2863-2-stephan@gerhold.net
Diffstat (limited to 'drivers/gpu/drm/mcde/mcde_drv.c')
| -rw-r--r-- | drivers/gpu/drm/mcde/mcde_drv.c | 16 |
1 files changed, 4 insertions, 12 deletions
diff --git a/drivers/gpu/drm/mcde/mcde_drv.c b/drivers/gpu/drm/mcde/mcde_drv.c index 5649887d2b90..0ccd3b0308c2 100644 --- a/drivers/gpu/drm/mcde/mcde_drv.c +++ b/drivers/gpu/drm/mcde/mcde_drv.c @@ -179,18 +179,10 @@ static int mcde_modeset_init(struct drm_device *drm) mode_config->min_height = 1; mode_config->max_height = 1080; - /* - * Currently we only support vblank handling on the DSI bridge, using - * TE synchronization. If TE sync is not set up, it is still possible - * to push out a single update on demand, but this is hard for DRM to - * exploit. - */ - if (mcde->te_sync) { - ret = drm_vblank_init(drm, 1); - if (ret) { - dev_err(drm->dev, "failed to init vblank\n"); - goto out_config; - } + ret = drm_vblank_init(drm, 1); + if (ret) { + dev_err(drm->dev, "failed to init vblank\n"); + goto out_config; } ret = mcde_display_init(drm); |