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drm: hdlcd: Add information about the underlying framebuffers in debugfs 

drm_fb_cma code has a nice helper function to display in the debugfs
information about the underlying framebuffers used by HDLCD:

$ cat /sys/kernel/debug/dri/0/fb
fb: 1920x1200@XR24
   0: offset=0 pitch=7680, obj:  0 ( 2) 001011ba 0x00000000fc300000 ffffff800a27c000 9338880
fb: 1920x1200@XR24
   0: offset=0 pitch=7680, obj:  0 ( 2) 001008ca 0x00000000fba00000 ffffff8009987000 9338880
fb: 1920x1200@XR24
   0: offset=0 pitch=7680, obj:  0 ( 1) 00100000 0x00000000fb100000 ffffff8008fdc000 9216000

Add the entry in HDLCD's debugfs node.

Signed-off-by: Liviu Dudau <Liviu.Dudau@arm.com>
This commit is contained in:
Liviu Dudau 2016-06-01 15:07:02 +01:00
parent 96ebb1f3ed
commit f6c68b4bd4
1 changed files with 1 additions and 0 deletions
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1
drivers/gpu/drm/arm/hdlcd_drv.c
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@ -254,6 +254,7 @@ static int hdlcd_show_pxlclock(struct seq_file *m, void *arg)
static struct drm_info_list hdlcd_debugfs_list[] = {
{ "interrupt_count", hdlcd_show_underrun_count, 0 },
{ "clocks", hdlcd_show_pxlclock, 0 },
{ "fb", drm_fb_cma_debugfs_show, 0 },
};
static int hdlcd_debugfs_init(struct drm_minor *minor)