Donate to e Foundation | Murena handsets with /e/OS | Own a part of Murena! Learn more

Commit 6393f5a1 authored by Ingrid Gallardo's avatar Ingrid Gallardo Committed by Gerrit - the friendly Code Review server
Browse files

msm: mdss: debugfs: xlog: enable xlog debug by default 



This change will enable by default the display
driver debugging features in non performance
builds to: dump MDSS registers during failures,
panic during fatal display driver errors and
enable some logging into an internal buffer
(to avoid logging overhead).

Change-Id: Idc5e2dbd6960ee568f3e18a103c248b20faca548
Signed-off-by: default avatarIngrid Gallardo <ingridg@codeaurora.org>
parent 8df9b212

drivers/video/msm/mdss/Kconfig

+9 −0
Original line number Diff line number Diff line
@@ -53,3 +53,12 @@ config FB_MSM_MDSS_MDP3 
	---help---

	The MDP3 provides support for an older version display controller

	included in latest display sub-system, known as MDSS.



config FB_MSM_MDSS_XLOG_DEBUG

	depends on FB_MSM_MDSS

	bool "Enable MDSS debugging"

	---help---

	The MDSS debugging provides support to enable display debugging

	features to: Dump MDSS registers during driver errors, panic

	driver during fatal errors and enable some display-driver logging

	into an internal buffer (this avoids logging overhead).

drivers/video/msm/mdss/mdss_debug_xlog.c

+18 −0
Original line number Diff line number Diff line
@@ -21,6 +21,15 @@ 
#include "mdss_mdp.h"

#include "mdss_debug.h"



#ifdef CONFIG_FB_MSM_MDSS_XLOG_DEBUG

#define XLOG_DEFAULT_ENABLE 1

#else

#define XLOG_DEFAULT_ENABLE 0

#endif



#define XLOG_DEFAULT_PANIC 1

#define XLOG_DEFAULT_REGDUMP 0x2 /* dump in RAM */



#define MDSS_XLOG_ENTRY	256

#define MDSS_XLOG_MAX_DATA 6

#define MDSS_XLOG_BUF_MAX 512
@@ -500,5 +509,14 @@ int mdss_create_xlog_debug(struct mdss_debug_data *mdd) 
			    &mdss_dbg_xlog.panic_on_err);

	debugfs_create_u32("reg_dump", 0644, mdss_dbg_xlog.xlog,

			    &mdss_dbg_xlog.enable_reg_dump);



	mdss_dbg_xlog.xlog_enable = XLOG_DEFAULT_ENABLE;

	mdss_dbg_xlog.panic_on_err = XLOG_DEFAULT_PANIC;

	mdss_dbg_xlog.enable_reg_dump = XLOG_DEFAULT_REGDUMP;



	pr_info("xlog_status: enable:%d, panic:%d, dump:%d\n",

		mdss_dbg_xlog.xlog_enable, mdss_dbg_xlog.panic_on_err,

		mdss_dbg_xlog.enable_reg_dump);



	return 0;

}