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authorJason Chen <b02280@freescale.com>2010-01-25 10:38:07 +0800
committerJason Chen <b02280@freescale.com>2010-01-25 10:38:07 +0800
commitcc4fe714041805997b601fe8e5dd585d8a99297f (patch)
tree6975a9772f19333b571d65c387af85b2d5dbc7f5 /drivers/media/video/mxc/output/mxc_v4l2_output.c
parentde8fe8bda1cf7af84327e10b2eeaca0eb215e679 (diff)
downloadlinux-linaro-rel_imx_2.6.31_10.02.00.tar.gz
ENGR00120370 v4l2 output: fix display fail for blank fb during video playrel_imx_2.6.31_10.02.00
1. Blank BG during video play on FG: ./mxc_v4l2_output.out -iw 320 -ih 240 -ow 1024 -oh 768 -d 3 qvga.yuv echo 1 > /sys/class/graphics/fb0/blank echo 0 > /sys/class/graphics/fb0/blank 2. The same input and output (ic_bypass): ./mxc_v4l2_output.out -iw 320 -ih 240 -ow 320 -oh 240 -d 3 qvga.yuv echo 1 > /sys/class/graphics/fb0/blank echo 0 > /sys/class/graphics/fb0/blank Signed-off-by: Jason Chen <b02280@freescale.com>
Diffstat (limited to 'drivers/media/video/mxc/output/mxc_v4l2_output.c')
-rw-r--r--drivers/media/video/mxc/output/mxc_v4l2_output.c13
1 files changed, 10 insertions, 3 deletions
diff --git a/drivers/media/video/mxc/output/mxc_v4l2_output.c b/drivers/media/video/mxc/output/mxc_v4l2_output.c
index 320deeb485d..521275ce763 100644
--- a/drivers/media/video/mxc/output/mxc_v4l2_output.c
+++ b/drivers/media/video/mxc/output/mxc_v4l2_output.c
@@ -273,19 +273,22 @@ static void setup_next_buf_timer(vout_data *vout, int index)
"timer handler next schedule: %lu\n", timeout);
}
-static void wait_for_disp_vsync(vout_data *vout)
+static int wait_for_disp_vsync(vout_data *vout)
{
struct fb_info *fbi =
registered_fb[vout->output_fb_num[vout->cur_disp_output]];
mm_segment_t old_fs;
+ int ret = 0;
/* wait for display frame finish */
if (fbi->fbops->fb_ioctl) {
old_fs = get_fs();
set_fs(KERNEL_DS);
- fbi->fbops->fb_ioctl(fbi, MXCFB_WAIT_FOR_VSYNC, (unsigned int)NULL);
+ ret = fbi->fbops->fb_ioctl(fbi, MXCFB_WAIT_FOR_VSYNC,
+ (unsigned int)NULL);
set_fs(old_fs);
}
+ return ret;
}
static void timer_work_func(struct work_struct *work)
@@ -323,7 +326,11 @@ static void timer_work_func(struct work_struct *work)
return;
}
- wait_for_disp_vsync(vout);
+ if (wait_for_disp_vsync(vout) < 0) {
+ /* ic_bypass need clear display buffer ready for next update*/
+ ipu_clear_buffer_ready(vout->display_ch, IPU_INPUT_BUFFER,
+ !vout->next_done_ipu_buf);
+ }
spin_lock_irqsave(&g_lock, lock_flags);