diff options
| author | Stephan Gerhold <stephan@gerhold.net> | 2019-11-06 19:58:30 +0300 |
|---|---|---|
| committer | Linus Walleij <linus.walleij@linaro.org> | 2019-11-10 00:18:51 +0300 |
| commit | d920e8da3d837bcc041800b8da9b335a728490f7 (patch) | |
| tree | 363da2014b2625063a1750f257dc792651dc246d /drivers/gpu/drm/mcde/mcde_drv.c | |
| parent | 768859c239922264f91d8a49ff8b1b227e7ad7d9 (diff) | |
| download | linux-d920e8da3d837bcc041800b8da9b335a728490f7.tar.xz | |
drm/mcde: Fix frame sync setup for video mode panels
The MCDE driver differentiates only between "te_sync"
(for hardware TE0 sync) and software sync
(i.e. manually triggered updates) at the moment.
However, none of these options work correctly for video mode panels.
Therefore, we need to make some changes to make them work correctly:
- Select hardware sync coming from the (DSI) formatter.
- Keep the FIFO permanently enabled (otherwise MCDE will stop
feeding data to the panel).
- Skip manual software sync (this is not necessary in video mode).
Automatically detect if the connected panel is using video mode
and enable the necessary changes in that case.
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/20191106165835.2863-3-stephan@gerhold.net
Diffstat (limited to 'drivers/gpu/drm/mcde/mcde_drv.c')
| -rw-r--r-- | drivers/gpu/drm/mcde/mcde_drv.c | 2 |
1 files changed, 0 insertions, 2 deletions
diff --git a/drivers/gpu/drm/mcde/mcde_drv.c b/drivers/gpu/drm/mcde/mcde_drv.c index 0ccd3b0308c2..9008ddcfc528 100644 --- a/drivers/gpu/drm/mcde/mcde_drv.c +++ b/drivers/gpu/drm/mcde/mcde_drv.c @@ -331,8 +331,6 @@ static int mcde_probe(struct platform_device *pdev) drm->dev_private = mcde; platform_set_drvdata(pdev, drm); - /* Enable use of the TE signal and interrupt */ - mcde->te_sync = true; /* Enable continuous updates: this is what Linux' framebuffer expects */ mcde->oneshot_mode = false; drm->dev_private = mcde; |