Commit f6c68b4b authored Jun 01, 2016 by Liviu Dudau

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>

parent 96ebb1f3

drivers/gpu/drm/arm/hdlcd_drv.c

+1 −0

Original line number	Original line	Diff line number	Diff line
	@@ -254,6 +254,7 @@ static int hdlcd_show_pxlclock(struct seq_file m, void arg)
	static struct drm_info_list hdlcd_debugfs_list[] = {		static struct drm_info_list hdlcd_debugfs_list[] = {
	{ "interrupt_count", hdlcd_show_underrun_count, 0 },		{ "interrupt_count", hdlcd_show_underrun_count, 0 },
	{ "clocks", hdlcd_show_pxlclock, 0 },		{ "clocks", hdlcd_show_pxlclock, 0 },
			{ "fb", drm_fb_cma_debugfs_show, 0 },
	};		};

	static int hdlcd_debugfs_init(struct drm_minor *minor)		static int hdlcd_debugfs_init(struct drm_minor *minor)