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52 lines
1.5 KiB
Diff
52 lines
1.5 KiB
Diff
From d4662ee456eef8873c23f1400c60b93c0ca835eb Mon Sep 17 00:00:00 2001
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From: Siarhei Siamashka <siarhei.siamashka@gmail.com>
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Date: Mon, 7 Dec 2015 09:18:37 +0200
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Subject: [PATCH 06/27] sunxi: disp2: FBIO_WAITFORVSYNC as a modifier for
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FBIOPAN_DISPLAY
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Change the code logic so that the FBIO_WAITFORVSYNC ioctl affects
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the behaviour of exactly one next FBIOPAN_DISPLAY ioctl and makes
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it wait for vsync.
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Signed-off-by: Siarhei Siamashka <siarhei.siamashka@gmail.com>
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---
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drivers/video/sunxi/disp2/disp/dev_fb.c | 9 +++++++--
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1 file changed, 7 insertions(+), 2 deletions(-)
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diff --git a/drivers/video/sunxi/disp2/disp/dev_fb.c b/drivers/video/sunxi/disp2/disp/dev_fb.c
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index 070675c..3c83abe 100755
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--- a/drivers/video/sunxi/disp2/disp/dev_fb.c
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+++ b/drivers/video/sunxi/disp2/disp/dev_fb.c
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@@ -524,6 +524,8 @@ static int fb_wait_for_vsync(struct fb_info *info)
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return 0;
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}
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+static int wait_for_vsync_flag;
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+
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static int sunxi_fb_pan_display(struct fb_var_screeninfo *var,struct fb_info *info)
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{
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u32 sel = 0;
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@@ -562,7 +564,10 @@ static int sunxi_fb_pan_display(struct fb_var_screeninfo *var,struct fb_info *in
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}
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}
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- fb_wait_for_vsync(info);
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+ if (wait_for_vsync_flag) {
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+ wait_for_vsync_flag = 0;
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+ fb_wait_for_vsync(info);
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+ }
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return 0;
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}
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@@ -874,7 +879,7 @@ static int sunxi_fb_ioctl(struct fb_info *info, unsigned int cmd,unsigned long a
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case FBIO_WAITFORVSYNC:
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{
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- //ret = fb_wait_for_vsync(info);
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+ wait_for_vsync_flag = 1;
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break;
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}
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--
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1.9.1
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