[PATCH 5/7] drm/simpledrm: Set preferred depth from format of scanout buffer

Thomas Zimmermann tzimmermann at suse.de
Wed Nov 16 16:09:15 UTC 2022


Set the preferred depth from the format of the scanout buffer. The
value cannot be hardcoded, as the scanout buffer's is only known at
runtime. Also derive the fbdev emulations bpp value from the scanout
format.

Signed-off-by: Thomas Zimmermann <tzimmermann at suse.de>
---
 drivers/gpu/drm/tiny/simpledrm.c | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/drivers/gpu/drm/tiny/simpledrm.c b/drivers/gpu/drm/tiny/simpledrm.c
index 162eb44dcba89..30e928d627e8f 100644
--- a/drivers/gpu/drm/tiny/simpledrm.c
+++ b/drivers/gpu/drm/tiny/simpledrm.c
@@ -739,7 +739,7 @@ static struct simpledrm_device *simpledrm_device_create(struct drm_driver *drv,
 	dev->mode_config.max_width = max_width;
 	dev->mode_config.min_height = height;
 	dev->mode_config.max_height = max_height;
-	dev->mode_config.preferred_depth = format->cpp[0] * 8;
+	dev->mode_config.preferred_depth = format->depth;
 	dev->mode_config.funcs = &simpledrm_mode_config_funcs;
 
 	/* Primary plane */
@@ -834,7 +834,7 @@ static int simpledrm_probe(struct platform_device *pdev)
 	if (ret)
 		return ret;
 
-	drm_fbdev_generic_setup(dev, 0);
+	drm_fbdev_generic_setup(dev, drm_format_info_bpp(sdev->format, 0));
 
 	return 0;
 }
-- 
2.38.1



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