drm/st7586: Call MIPI DBI mode_valid helper

MIPI DBI drivers validate each mode against their native resolution.
Add this test to st7586.

Signed-off-by: Thomas Zimmermann <tzimmermann@suse.de>
Reviewed-by: Noralf Trønnes <noralf@tronnes.org>
Link: https://patchwork.freedesktop.org/patch/msgid/20221202125644.7917-4-tzimmermann@suse.de

diff --git a/drivers/gpu/drm/tiny/st7586.c b/drivers/gpu/drm/tiny/st7586.c
index ce57fa9..6bdd23e 100644 (file)
--- a/drivers/gpu/drm/tiny/st7586.c
+++ b/drivers/gpu/drm/tiny/st7586.c
@@ -263,6 +263,7 @@ static const u32 st7586_formats[] = {
 };
 
 static const struct drm_simple_display_pipe_funcs st7586_pipe_funcs = {
+       .mode_valid     = mipi_dbi_pipe_mode_valid,
        .enable         = st7586_pipe_enable,
        .disable        = st7586_pipe_disable,
        .update         = st7586_pipe_update,