Linux下如何使LCD驱动支持DE模式

我想把HV sync改成DE，现在已经把mxc_lcdif文件里的其他参数都选好了，现在就剩一个uint32 sync这个值不知道怎么设置。我看到手册里DCIC寄存器里有VSYNC_POL，HSYNC_POLHSYNC_POL和和DE_POL的设置，天嵌的默认lcd设置的是VSYNC和HSYNC高电平有效，这个值是怎么设置的啊，我应该怎么样才能在linux里面把DE_POL这个值改掉啊，默认是1，我需要改成0

Field Description
31–8
Reserved
This read-only field is reserved and always has the value 0.
7
CLK_POL
DISP_CLK signal polarity.
0 Not inverted (default).
1 Inverted.
6
VSYNC_POL
VSYNC_IN signal polarity.
Table continues on the next page...
DCIC Memory Map/Register Definition
i.MX 6Dual/6Quad Applications Processor Reference Manual, Rev. 2, 06/2014
964 Freescale Semiconductor, Inc.
DCICx_DCICC field descriptions (continued)
Field Description
0 Active High.
1 Active Low (default).
5
HSYNC_POL
HSYNC_IN signal polarity.
0 Active High.
1 Active Low (default).
4
DE_POL
DATA_EN_IN signal polarity.
0 Active High.
1 Active Low (default).
3–1
Reserved
This read-only field is reserved and always has the value 0.
0
IC_EN
Integrity Check enable. Main enable switch.
0 Disabled
1 Enabled

这年头果断要靠自己啊，已搞定