[PATCH 3/9] drm/verisilicon: Add basic drm driver

[Shengyu Qu]

Hello Keith,

While compiling this driver as a module, a error happens:

drivers/gpu/drm/verisilicon/vs_drm: struct of_device_id is 200 bytes.  
The last of 1 is:
0x00 0x00 0x00 0x00 0x00 0x00 0x00 0x00 0x00 0x00 0x00 0x00 0x00 0x00 
0x00 0x00 0x00 0x00 0x00 0x00 0x00 0x00 0x00 0x00 0x00 0x00 0x00 0x00 
0x00 0x00 0x00 0x00 0x00 0x00 0x00 0x00 0x00 0x00 0x00 0x00 0x00 0x00 
0x00 0x00 0x00 0x00 0x00 0x00 0x00 0x00 0x00 0x00 0x00 0x00 0x00 0x00 
0x00 0x00 0x00 0x00 0x00 0x00 0x00 0x00 0x76 0x65 0x72 0x69 0x73 0x69 
0x6c 0x69 0x63 0x6f 0x6e 0x2c 0x64 0x69 0x73 0x70 0x6c 0x61 0x79 0x2d 
0x73 0x75 0x62 0x73 0x79 0x73 0x74 0x65 0x6d 0x00 0x00 0x00 0x00 0x00 
0x00 0x00 0x00 0x00 0x00 0x00 0x00 0x00 0x00 0x00 0x00 0x00 0x00 0x00 
0x00 0x00 0x00 0x00 0x00 0x00 0x00 0x00 0x00 0x00 0x00 0x00 0x00 0x00 
0x00 0x00 0x00 0x00 0x00 0x00 0x00 0x00 0x00 0x00 0x00 0x00 0x00 0x00 
0x00 0x00 0x00 0x00 0x00 0x00 0x00 0x00 0x00 0x00 0x00 0x00 0x00 0x00 
0x00 0x00 0x00 0x00 0x00 0x00 0x00 0x00 0x00 0x00 0x00 0x00 0x00 0x00 
0x00 0x00 0x00 0x00 0x00 0x00 0x00 0x00 0x00 0x00 0x00 0x00 0x00 0x00 
0x00 0x00 0x00 0x00 0x00 0x00 0x00 0x00 0x00 0x00 0x00 0x00 0x00 0x00 
0x00 0x00 0x00 0x00
FATAL: modpost: drivers/gpu/drm/verisilicon/vs_drm: struct of_device_id 
is not terminated with a NULL entry!

> +
> +static const struct of_device_id vs_drm_dt_ids[] = {
> +	{ .compatible = "verisilicon,display-subsystem", },
> +};
> +

So, this should be:

static const struct of_device_id vs_drm_dt_ids[] = {
	{ .compatible = "verisilicon,display-subsystem", },
	{ },
};

After fixing this problem, another error happens:

ERROR: modpost: module vs_drm uses symbol dma_buf_mmap from namespace 
DMA_BUF, but does not import it.

Please fix.

Best regards,
Shengyu