diff options
| author | Thomas Zimmermann <tzimmermann@suse.de> | 2022-09-05 16:16:46 +0200 |
|---|---|---|
| committer | Thomas Zimmermann <tzimmermann@suse.de> | 2022-09-12 09:14:26 +0200 |
| commit | 216b9bbaeaea96b7f05c220f61855d174be972d8 (patch) | |
| tree | 89e0c2bc96f351183fcff9fabab3b7ea442bfc25 /drivers/gpu/drm/drm_mipi_dbi.c | |
| parent | d25654b3fad9906ca80912701fd4bd6e2419f54d (diff) | |
drm/probe-helper: Add drm_crtc_helper_mode_valid_fixed()
Add drm_crtc_helper_mode_valid_fixed(), which validates a given mode
against a display hardware's mode. Convert simpledrm and use it in a
few other drivers with static modes.
v4:
* remove empty line after opening brace
v2:
* rename 'static' and 'hw' to 'fixed' everywhere
Signed-off-by: Thomas Zimmermann <tzimmermann@suse.de>
Reviewed-by: Sam Ravnborg <sam@ravnborg.org>
Link: https://patchwork.freedesktop.org/patch/msgid/20220905141648.22013-3-tzimmermann@suse.de
Diffstat (limited to 'drivers/gpu/drm/drm_mipi_dbi.c')
| -rw-r--r-- | drivers/gpu/drm/drm_mipi_dbi.c | 18 |
1 files changed, 18 insertions, 0 deletions
diff --git a/drivers/gpu/drm/drm_mipi_dbi.c b/drivers/gpu/drm/drm_mipi_dbi.c index de2a5be67415..a6ac56580876 100644 --- a/drivers/gpu/drm/drm_mipi_dbi.c +++ b/drivers/gpu/drm/drm_mipi_dbi.c @@ -310,6 +310,24 @@ err_drm_dev_exit: } /** + * mipi_dbi_pipe_mode_valid - MIPI DBI mode-valid helper + * @pipe: Simple display pipe + * @mode: The mode to test + * + * This function validates a given display mode against the MIPI DBI's hardware + * display. Drivers can use this as their &drm_simple_display_pipe_funcs->mode_valid + * callback. + */ +enum drm_mode_status mipi_dbi_pipe_mode_valid(struct drm_simple_display_pipe *pipe, + const struct drm_display_mode *mode) +{ + struct mipi_dbi_dev *dbidev = drm_to_mipi_dbi_dev(pipe->crtc.dev); + + return drm_crtc_helper_mode_valid_fixed(&pipe->crtc, mode, &dbidev->mode); +} +EXPORT_SYMBOL(mipi_dbi_pipe_mode_valid); + +/** * mipi_dbi_pipe_update - Display pipe update helper * @pipe: Simple display pipe * @old_state: Old plane state |