drm: Update fbdev fb_fix_screeninfo

If you change the color depth via fbset or some other framebuffer aware
userland application struct fb_fix_screeninfo is not updated to this new
information. This patch fixes this issue. Also the function is changed to
just pass in struct drm_framebuffer so in the future we could use more
fields. I'm hoping some day fix->smem* could be set here :-)

Signed-off-by: James Simmons <jsimmons@infradead.org>
Signed-off-by: Dave Airlie <airlied@redhat.com>

4 files changed, 21 insertions, 24 deletions

diff --git a/drivers/gpu/drm/drm_fb_helper.c b/drivers/gpu/drm/drm_fb_helper.c
index 5c4f9b9ecdc..0307d601f5e 100644
--- a/drivers/gpu/drm/drm_fb_helper.c
+++ b/drivers/gpu/drm/drm_fb_helper.c
@@ -607,6 +607,25 @@ void drm_fb_helper_fini(struct drm_fb_helper *fb_helper)
 }
 EXPORT_SYMBOL(drm_fb_helper_fini);
 
+void drm_fb_helper_fill_fix(struct fb_info *info, struct drm_framebuffer *fb)
+{
+        info->fix.type = FB_TYPE_PACKED_PIXELS;
+        info->fix.visual = fb->depth == 8 ? FB_VISUAL_PSEUDOCOLOR :
+                FB_VISUAL_TRUECOLOR;
+        info->fix.mmio_start = 0;
+        info->fix.mmio_len = 0;
+        info->fix.type_aux = 0;
+        info->fix.xpanstep = 1; /* doing it in hw */
+        info->fix.ypanstep = 1; /* doing it in hw */
+        info->fix.ywrapstep = 0;
+        info->fix.accel = FB_ACCEL_NONE;
+        info->fix.type_aux = 0;
+
+        info->fix.line_length = fb->pitch;
+        return;
+}
+EXPORT_SYMBOL(drm_fb_helper_fill_fix);
+
 static int setcolreg(struct drm_crtc *crtc, u16 red, u16 green,
                      u16 blue, u16 regno, struct fb_info *info)
 {
@@ -816,6 +835,7 @@ int drm_fb_helper_set_par(struct fb_info *info)
                         mutex_unlock(&dev->mode_config.mutex);
                         return ret;
                 }
+                drm_fb_helper_fill_fix(info, fb_helper->fb);
         }
         mutex_unlock(&dev->mode_config.mutex);
 
@@ -953,6 +973,7 @@ int drm_fb_helper_single_fb_probe(struct drm_fb_helper *fb_helper,
 
         if (new_fb) {
                 info->var.pixclock = 0;
+                drm_fb_helper_fill_fix(info, fb_helper->fb);
                 if (register_framebuffer(info) < 0) {
                         return -EINVAL;
                 }
@@ -979,26 +1000,6 @@ int drm_fb_helper_single_fb_probe(struct drm_fb_helper *fb_helper,
 }
 EXPORT_SYMBOL(drm_fb_helper_single_fb_probe);
 
-void drm_fb_helper_fill_fix(struct fb_info *info, uint32_t pitch,
-                            uint32_t depth)
-{
-        info->fix.type = FB_TYPE_PACKED_PIXELS;
-        info->fix.visual = depth == 8 ? FB_VISUAL_PSEUDOCOLOR :
-                FB_VISUAL_TRUECOLOR;
-        info->fix.mmio_start = 0;
-        info->fix.mmio_len = 0;
-        info->fix.type_aux = 0;
-        info->fix.xpanstep = 1; /* doing it in hw */
-        info->fix.ypanstep = 1; /* doing it in hw */
-        info->fix.ywrapstep = 0;
-        info->fix.accel = FB_ACCEL_NONE;
-        info->fix.type_aux = 0;
-
-        info->fix.line_length = pitch;
-        return;
-}
-EXPORT_SYMBOL(drm_fb_helper_fill_fix);
-
 void drm_fb_helper_fill_var(struct fb_info *info, struct drm_fb_helper *fb_helper,
                             uint32_t fb_width, uint32_t fb_height)
 {
diff --git a/drivers/gpu/drm/i915/intel_fb.c b/drivers/gpu/drm/i915/intel_fb.c
index 67738f32dfd..701e830d001 100644
--- a/drivers/gpu/drm/i915/intel_fb.c
+++ b/drivers/gpu/drm/i915/intel_fb.c
@@ -150,7 +150,6 @@ static int intelfb_create(struct intel_fbdev *ifbdev,
 
 //      memset(info->screen_base, 0, size);
 
-        drm_fb_helper_fill_fix(info, fb->pitch, fb->depth);
         drm_fb_helper_fill_var(info, &ifbdev->helper, sizes->fb_width, sizes->fb_height);
 
         info->pixmap.size = 64*1024;
diff --git a/drivers/gpu/drm/nouveau/nouveau_fbcon.c b/drivers/gpu/drm/nouveau/nouveau_fbcon.c
index 6d56a54b6e2..a26d04740c8 100644
--- a/drivers/gpu/drm/nouveau/nouveau_fbcon.c
+++ b/drivers/gpu/drm/nouveau/nouveau_fbcon.c
@@ -359,7 +359,6 @@ nouveau_fbcon_create(struct nouveau_fbdev *nfbdev,
         info->screen_base = nvbo_kmap_obj_iovirtual(nouveau_fb->nvbo);
         info->screen_size = size;
 
-        drm_fb_helper_fill_fix(info, fb->pitch, fb->depth);
         drm_fb_helper_fill_var(info, &nfbdev->helper, sizes->fb_width, sizes->fb_height);
 
         /* Set aperture base/size for vesafb takeover */
diff --git a/drivers/gpu/drm/radeon/radeon_fb.c b/drivers/gpu/drm/radeon/radeon_fb.c
index 66324b5bb5b..ca32e9c1e91 100644
--- a/drivers/gpu/drm/radeon/radeon_fb.c
+++ b/drivers/gpu/drm/radeon/radeon_fb.c
@@ -225,8 +225,6 @@ static int radeonfb_create(struct radeon_fbdev *rfbdev,
 
         strcpy(info->fix.id, "radeondrmfb");
 
-        drm_fb_helper_fill_fix(info, fb->pitch, fb->depth);
-
         info->flags = FBINFO_DEFAULT | FBINFO_CAN_FORCE_OUTPUT;
         info->fbops = &radeonfb_ops;