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| author | Anatolij Gustschin <agust@denx.de> | 2017-09-04 23:33:45 +0200 |
|---|---|---|
| committer | Anatolij Gustschin <agust@denx.de> | 2017-09-04 23:33:45 +0200 |
| commit | f8ba7f27740b42f17bf145d0e1e5aec66ac8dc0e (patch) | |
| tree | 2a71f9edb36db923182f27d7e930f3132445582d /drivers/video/mxc_ipuv3_fb.c | |
| parent | 0e88cdd17da393e7dd6040de6a3fda289c00a51e (diff) | |
| download | u-boot-f8ba7f27740b42f17bf145d0e1e5aec66ac8dc0e.tar.gz u-boot-f8ba7f27740b42f17bf145d0e1e5aec66ac8dc0e.tar.xz u-boot-f8ba7f27740b42f17bf145d0e1e5aec66ac8dc0e.zip | |
video: ipuv3_fb: skip IPU shutdown if IPU was not enabled before
Boards can skip display interface init using board_video_skip().
If display interface was not initialized (e.g. no ipuv3 framebuffer
registered or IPU clock disabled), booting Linux stops due to the
crash in IPU shutdown function, when accessing IPU registers.
Check IPU clock and skip shutdown if clock is not enabled.
Signed-off-by: Anatolij Gustschin <agust@denx.de>
Diffstat (limited to 'drivers/video/mxc_ipuv3_fb.c')
| -rw-r--r-- | drivers/video/mxc_ipuv3_fb.c | 3 |
1 files changed, 3 insertions, 0 deletions
diff --git a/drivers/video/mxc_ipuv3_fb.c b/drivers/video/mxc_ipuv3_fb.c index 0d0a0a97ff..1ab5cb7b1c 100644 --- a/drivers/video/mxc_ipuv3_fb.c +++ b/drivers/video/mxc_ipuv3_fb.c @@ -571,6 +571,9 @@ void ipuv3_fb_shutdown(void) int i; struct ipu_stat *stat = (struct ipu_stat *)IPU_STAT; + if (!ipu_clk_enabled()) + return; + for (i = 0; i < ARRAY_SIZE(mxcfb_info); i++) { struct fb_info *fbi = mxcfb_info[i]; if (fbi) { |