[PATCH v4 01/18] drm: Remove flag FBINFO_DEFAULT from fbdev emulation

Thomas Zimmermann
2023-07-15T18:53:58Z

The flag FBINFO_DEFAULT is 0 and has no effect, as struct fbinfo.flags
has been allocated to zero by framebuffer_alloc(). So do not set it.

Flags should signal differences from the default values. After cleaning
up all occurrences of FBINFO_DEFAULT, the token will be removed.

v2:
* fix commit message (Miguel)

Signed-off-by: Thomas Zimmermann <tzimmermann@suse.de>
Acked-by: Sam Ravnborg <sam@ravnborg.org>
Cc: Patrik Jakobsson <patrik.r.jakobsson@gmail.com>
Cc: Alex Deucher <alexander.deucher@amd.com>
Cc: "Christian König" <christian.koenig@amd.com>
Cc: "Pan, Xinhui" <Xinhui.Pan@amd.com>
---
drivers/gpu/drm/drm_fbdev_dma.c | 1 -
drivers/gpu/drm/drm_fbdev_generic.c | 1 -
drivers/gpu/drm/gma500/fbdev.c | 2 +-
drivers/gpu/drm/radeon/radeon_fbdev.c | 2 +-
4 files changed, 2 insertions(+), 4 deletions(-)

diff --git a/drivers/gpu/drm/drm_fbdev_dma.c b/drivers/gpu/drm/drm_fbdev_dma.c
index f9b1f7cd31b7..ee7c265b0585 100644
--- a/drivers/gpu/drm/drm_fbdev_dma.c
+++ b/drivers/gpu/drm/drm_fbdev_dma.c
@@ -123,7 +123,6 @@ static int drm_fbdev_dma_helper_fb_probe(struct drm_fb_helper *fb_helper,
drm_fb_helper_fill_info(info, fb_helper, sizes);

info->fbops = &drm_fbdev_dma_fb_ops;
- info->flags = FBINFO_DEFAULT;

/* screen */
info->flags |= FBINFO_VIRTFB; /* system memory */
diff --git a/drivers/gpu/drm/drm_fbdev_generic.c b/drivers/gpu/drm/drm_fbdev_generic.c
index b9343fb6cf13..a0ea042b1526 100644
--- a/drivers/gpu/drm/drm_fbdev_generic.c
+++ b/drivers/gpu/drm/drm_fbdev_generic.c
@@ -109,7 +109,6 @@ static int drm_fbdev_generic_helper_fb_probe(struct drm_fb_helper *fb_helper,
drm_fb_helper_fill_info(info, fb_helper, sizes);

info->fbops = &drm_fbdev_generic_fb_ops;
- info->flags = FBINFO_DEFAULT;

/* screen */
info->flags |= FBINFO_VIRTFB | FBINFO_READS_FAST;
diff --git a/drivers/gpu/drm/gma500/fbdev.c b/drivers/gpu/drm/gma500/fbdev.c
index 054426549fc6..be8f5fbd5260 100644
--- a/drivers/gpu/drm/gma500/fbdev.c
+++ b/drivers/gpu/drm/gma500/fbdev.c
@@ -215,7 +215,7 @@ static int psb_fbdev_fb_probe(struct drm_fb_helper *fb_helper,
}

info->fbops = &psb_fbdev_fb_ops;
- info->flags = FBINFO_DEFAULT;
+
/* Accessed stolen memory directly */
info->screen_base = dev_priv->vram_addr + backing->offset;
info->screen_size = size;
diff --git a/drivers/gpu/drm/radeon/radeon_fbdev.c b/drivers/gpu/drm/radeon/radeon_fbdev.c
index f941e2e7cae6..68c06ac9acce 100644
--- a/drivers/gpu/drm/radeon/radeon_fbdev.c
+++ b/drivers/gpu/drm/radeon/radeon_fbdev.c
@@ -253,7 +253,7 @@ static int radeon_fbdev_fb_helper_fb_probe(struct drm_fb_helper *fb_helper,
}

info->fbops = &radeon_fbdev_fb_ops;
- info->flags = FBINFO_DEFAULT;
+
/* radeon resume is fragile and needs a vt switch to help it along */
info->skip_vt_switch = false;

--
2.41.0