The fbdev split between fix and var information is kinda
pointless for drm drivers since everything is fixed: The fbdev
emulation doesn't support changing modes at all.
Create a new simplified helper and use it in the generic fbdev
helper code. Follow-up patches will beef it up more and roll
it out to all drivers.
v2: We need to keep sizes, since they might not match the fb dimesions
(Noralf)
Cc: Noralf Trønnes <noralf@xxxxxxxxxxx>
Signed-off-by: Daniel Vetter <daniel.vetter@xxxxxxxxx>
---
drivers/gpu/drm/drm_fb_helper.c | 30 ++++++++++++++++++++++++++++--
include/drm/drm_fb_helper.h | 3 +++
2 files changed, 31 insertions(+), 2 deletions(-)
diff --git a/drivers/gpu/drm/drm_fb_helper.c b/drivers/gpu/drm/drm_fb_helper.c
index c3d6a8c78a51..b89d177228e2 100644
--- a/drivers/gpu/drm/drm_fb_helper.c
+++ b/drivers/gpu/drm/drm_fb_helper.c
@@ -2105,6 +2105,33 @@ void drm_fb_helper_fill_var(struct fb_info *info, struct drm_fb_helper *fb_helpe
}
EXPORT_SYMBOL(drm_fb_helper_fill_var);
+/**
+ * drm_fb_helper_fill_info - initializes fbdev information
+ * @info: fbdev instance to set up
+ * @fb_helper: fb helper instance to use as template
+ * @sizes: describes fbdev size and scanout surface size
+ *
+ *
+ * Sets up the variable and fixed fbdev metainformation from the given fb helper
+ * instance and the drm framebuffer allocated in &drm_fb_helper.fb.
+ *
+ * Drivers should call this (or their equivalent setup code) from their
+ * &drm_fb_helper_funcs.fb_probe callback after having allocated the fbdev
+ * backing storage framebuffer.
+ */
+void drm_fb_helper_fill_info(struct fb_info *info,
+ struct drm_fb_helper *fb_helper,
+ struct drm_fb_helper_surface_size *sizes)
+{
+ struct drm_framebuffer *fb = fb_helper->fb;
+
+ drm_fb_helper_fill_fix(info, fb->pitches[0], fb->format->depth);
+ drm_fb_helper_fill_var(info, fb_helper,
+ sizes->fb_width, sizes->fb_height);
+
+}
+EXPORT_SYMBOL(drm_fb_helper_fill_info);
+
static int drm_fb_helper_probe_connector_modes(struct drm_fb_helper *fb_helper,
uint32_t maxX,
uint32_t maxY)
@@ -3165,8 +3192,7 @@ int drm_fb_helper_generic_probe(struct drm_fb_helper *fb_helper,
#endif
strcpy(fbi->fix.id, "DRM emulated");
- drm_fb_helper_fill_fix(fbi, fb->pitches[0], fb->format->depth);
- drm_fb_helper_fill_var(fbi, fb_helper, sizes->fb_width, sizes->fb_height);
+ drm_fb_helper_fill_info(fbi, fb_helper, sizes);
if (fb->funcs->dirty) {
struct fb_ops *fbops;
diff --git a/include/drm/drm_fb_helper.h b/include/drm/drm_fb_helper.h
index 286d58efed5d..9ef72f20662d 100644
--- a/include/drm/drm_fb_helper.h
+++ b/include/drm/drm_fb_helper.h
@@ -293,6 +293,9 @@ void drm_fb_helper_fill_var(struct fb_info *info, struct drm_fb_helper *fb_helpe
uint32_t fb_width, uint32_t fb_height);
void drm_fb_helper_fill_fix(struct fb_info *info, uint32_t pitch,
uint32_t depth);
+void drm_fb_helper_fill_info(struct fb_info *info,
+ struct drm_fb_helper *fb_helper,
+ struct drm_fb_helper_surface_size *sizes);
void drm_fb_helper_unlink_fbi(struct drm_fb_helper *fb_helper);
--
2.20.1
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