diff options
| author | Liu Ying <Ying.Liu@freescale.com> | 2015-11-20 13:50:20 +0800 |
|---|---|---|
| committer | Liu Ying <Ying.Liu@freescale.com> | 2015-11-20 18:20:07 +0800 |
| commit | 5f6f0a50e6039370078369ddf380179d59024789 (patch) | |
| tree | 458cb1c63350b57caa112343fd4602a2bb440ff6 | |
| parent | 0df10a86fa7e2ea6c8269d77239f558aad0e550c (diff) | |
MLK-11881 video: fbdev: mxc ipuv3 fb: Correct ->prefetch in ioctrl SET_PREFETCHrel_imx_3.14.52_1.1.0_ga
When a framebuffer is blanked, the user may call the MXCFB_SET_PREFETCH ioctrl
to enable or disable the prefetch engine. After sanity check, the cached
->prefetch should reflect the user's intention for next unblank operation
any way instead of checking ->cur_prefetch first.
Signed-off-by: Liu Ying <Ying.Liu@freescale.com>
(cherry picked from commit 10c7a9454a0e0e9c284f937fe7a8592680aacc11)
(cherry picked from commit 0e13ab81aeea682a7dd7b329f4dcf6d7c8116889)
| -rw-r--r-- | drivers/video/mxc/mxc_ipuv3_fb.c | 6 |
1 files changed, 3 insertions, 3 deletions
diff --git a/drivers/video/mxc/mxc_ipuv3_fb.c b/drivers/video/mxc/mxc_ipuv3_fb.c index 3af13e6f0e46..eb9b2f24842d 100644 --- a/drivers/video/mxc/mxc_ipuv3_fb.c +++ b/drivers/video/mxc/mxc_ipuv3_fb.c @@ -2047,15 +2047,15 @@ static int mxcfb_ioctl(struct fb_info *fbi, unsigned int cmd, unsigned long arg) } } - if (mxc_fbi->cur_prefetch == !!enable) - break; - retval = mxcfb_check_var(&fbi->var, fbi); if (retval) break; mxc_fbi->prefetch = !!enable; + if (mxc_fbi->cur_prefetch == mxc_fbi->prefetch) + break; + fbi->var.activate = (fbi->var.activate & ~FB_ACTIVATE_MASK) | FB_ACTIVATE_NOW | FB_ACTIVATE_FORCE; retval = mxcfb_set_par(fbi); |