[PATCH] video: fbdev: udlfb: drop log level for blanking
From: Mike Gerow <hidden>
Date: 2017-06-01 20:25:59
Subsystem:
displaylink usb 2.0 framebuffer driver (udlfb), framebuffer layer, the rest · Maintainers:
Bernie Thompson, Helge Deller, Linus Torvalds
Log blanking that goes from FB_BLANK_UNBLANK to itself at debug. It turns out Xorg likes to habitually unblank when already unblanked and this can fill up logs over a long period of time. Signed-off-by: Mike Gerow <redacted> --- drivers/video/fbdev/udlfb.c | 13 +++++++++++-- 1 file changed, 11 insertions(+), 2 deletions(-)
diff --git a/drivers/video/fbdev/udlfb.c b/drivers/video/fbdev/udlfb.c
index 6a3c353de7c3..611de916abcf 100644
--- a/drivers/video/fbdev/udlfb.c
+++ b/drivers/video/fbdev/udlfb.c@@ -1105,8 +1105,17 @@ static int dlfb_ops_blank(int blank_mode, struct fb_info *info) char *bufptr; struct urb *urb; - pr_info("/dev/fb%d FB_BLANK mode %d --> %d\n", - info->node, dev->blank_mode, blank_mode); + /* + * Xorg likes to habitually unblank when already unblanked so log these + * kinds of events at debug. + */ + if (dev->blank_mode == FB_BLANK_UNBLANK && + blank_mode == FB_BLANK_UNBLANK) + pr_debug("/dev/fb%d FB_BLANK mode %d --> %d (FB_BLANK_UNBLANK --> FB_BLANK_UNBLANK)\n", + info->node, FB_BLANK_UNBLANK, FB_BLANK_UNBLANK); + else + pr_info("/dev/fb%d FB_BLANK mode %d --> %d\n", + info->node, dev->blank_mode, blank_mode); if ((dev->blank_mode == FB_BLANK_POWERDOWN) && (blank_mode != FB_BLANK_POWERDOWN)) {
--
2.13.0.219.gdb65acc882-goog
--
Mike Gerow
gerow@google.comAttachments
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