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authorGuennadi Liakhovetski <g.liakhovetski@gmx.de>2010-09-14 14:48:54 +0000
committerPaul Mundt <lethal@linux-sh.org>2010-09-16 16:36:17 +0900
commitdd210503b77ae04adfdb25ca45536c4f7e33edb1 (patch)
tree14f3e8775c17906f8216618d1f7a97ee6927a50e /drivers/video/sh_mobile_lcdcfb.h
parent52d5ac0073eb5faf284574bd98a25a65053eaae0 (diff)
downloadlinux-dd210503b77ae04adfdb25ca45536c4f7e33edb1.tar.gz
fbdev: sh_mobile_lcdc: reconfigure the framebuffer, when free
Currently the sh_mobile_lcdc driver only reconfigures the hardware interface, when a new monitor is plugged in. This patch adds support for dynamic framebuffer reconfiguration, when no user is holding the framebuffer device node open. Signed-off-by: Guennadi Liakhovetski <g.liakhovetski@gmx.de> Signed-off-by: Paul Mundt <lethal@linux-sh.org>
Diffstat (limited to 'drivers/video/sh_mobile_lcdcfb.h')
-rw-r--r--drivers/video/sh_mobile_lcdcfb.h3
1 files changed, 3 insertions, 0 deletions
diff --git a/drivers/video/sh_mobile_lcdcfb.h b/drivers/video/sh_mobile_lcdcfb.h
index dfd3d766a55..9ecee2fba1d 100644
--- a/drivers/video/sh_mobile_lcdcfb.h
+++ b/drivers/video/sh_mobile_lcdcfb.h
@@ -3,6 +3,7 @@
#include <linux/completion.h>
#include <linux/fb.h>
+#include <linux/mutex.h>
#include <linux/wait.h>
/* per-channel registers */
@@ -33,6 +34,8 @@ struct sh_mobile_lcdc_chan {
wait_queue_head_t frame_end_wait;
struct completion vsync_completion;
struct fb_var_screeninfo display_var;
+ int use_count;
+ struct mutex open_lock; /* protects the use counter */
};
#endif