drm/logicvc: Fix preferred fbdev cpp

Logicvc can have different values for the preferred color depth. Set
the fbdev bpp value depending on the runtime value.

v2:
	* remove unused color depth of 15 from switch (Javier)

Signed-off-by: Thomas Zimmermann <tzimmermann@suse.de>
Reviewed-by: Javier Martinez Canillas <javierm@redhat.com>
Acked-by: Daniel Vetter <daniel.vetter@ffwll.ch>
Link: https://patchwork.freedesktop.org/patch/msgid/20221123115348.2521-3-tzimmermann@suse.de

diff --git a/drivers/gpu/drm/logicvc/logicvc_drm.c b/drivers/gpu/drm/logicvc/logicvc_drm.c
index 9de24d9..2fb2369 100644 (file)
--- a/drivers/gpu/drm/logicvc/logicvc_drm.c
+++ b/drivers/gpu/drm/logicvc/logicvc_drm.c
@@ -301,6 +301,7 @@ static int logicvc_drm_probe(struct platform_device *pdev)
        struct regmap *regmap = NULL;
        struct resource res;
        void __iomem *base;
+       unsigned int preferred_bpp;
        int irq;
        int ret;
 
@@ -438,7 +439,17 @@ static int logicvc_drm_probe(struct platform_device *pdev)
                goto error_mode;
        }
 
-       drm_fbdev_generic_setup(drm_dev, drm_dev->mode_config.preferred_depth);
+       switch (drm_dev->mode_config.preferred_depth) {
+       case 16:
+               preferred_bpp = 16;
+               break;
+       case 24:
+       case 32:
+       default:
+               preferred_bpp = 32;
+               break;
+       }
+       drm_fbdev_generic_setup(drm_dev, preferred_bpp);
 
        return 0;