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authorMaxime Ripard <maxime.ripard@bootlin.com>2019-03-06 15:02:45 +0100
committerMaxime Ripard <maxime.ripard@bootlin.com>2019-03-07 11:48:28 +0100
commitf741b28fb299263d2d03a0fb701bfe648927cd47 (patch)
tree5194d6b6ff687bd739cf6f0bce4d4a5b2d56ead2
parentcd7d3a1bb42e0756b17ccfafbd956ca7ed757846 (diff)
drm/vc4: Use 16bpp by default for the fbdev buffer
The preferred bpp for the fbdev emulation buffer has been 32 so far, which means that by default we will allocate an 8MB buffer with a 1920x1080 resolution. Worse this memory will be allocated from the CMA pool, and will never be freed even if we don't use the fbdev emulation. Therefore, reducing it is a big deal, and switching to 16bpp by default will gain us around 4MB at 1920x1080, while keeping decent color depth. And users still have the option to switch to 32bpp using the kernel command line. Signed-off-by: Maxime Ripard <maxime.ripard@bootlin.com> Reviewed-by: Eric Anholt <eric@anholt.net> Reviewed-by: Paul Kocialkowski <paul.kocialkowski@bootlin.com> Link: https://patchwork.freedesktop.org/patch/msgid/20190306140245.21973-1-maxime.ripard@bootlin.com
-rw-r--r--drivers/gpu/drm/vc4/vc4_drv.c2
1 files changed, 1 insertions, 1 deletions
diff --git a/drivers/gpu/drm/vc4/vc4_drv.c b/drivers/gpu/drm/vc4/vc4_drv.c
index 3227706700f9..4daf44fd4548 100644
--- a/drivers/gpu/drm/vc4/vc4_drv.c
+++ b/drivers/gpu/drm/vc4/vc4_drv.c
@@ -286,7 +286,7 @@ static int vc4_drm_bind(struct device *dev)
vc4_kms_load(drm);
- drm_fbdev_generic_setup(drm, 32);
+ drm_fbdev_generic_setup(drm, 16);
return 0;