Piteball
/
android_kernel_samsung_msm8976
mirror of https://github.com/team-infusion-developers/android_kernel_samsung_msm8976.git
1
1
Fork 0
Code Issues Projects Releases Wiki Activity

spmi: Add API to create controller specific debugfs files 

Add API function 'spmi_dfs_create_file' for SPMI controller drivers to
create their own implementation specific files under the SPMI debugfs
directory.

Change-Id: Ib4d0557333371a2a29b6dc6ae6ca6a41ebf13c34
Signed-off-by: Kenneth Heitke <kheitke@codeaurora.org>
This commit is contained in:
Kenneth Heitke 2013-01-22 16:09:19 -07:00 committed by Stephen Boyd
parent 50a1e06c93
commit ea9edaf5b0
2 changed files with 29 additions and 1 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

22
drivers/spmi/spmi-dbgfs.c
View File

@ -36,6 +36,7 @@
#include <linux/debugfs.h>
#include <linux/spmi.h>
#include <linux/ctype.h>
#include "spmi-dbgfs.h"
#define ADDR_LEN 6 /* 5 byte address + 1 space character */
#define CHARS_PER_ITEM 3 /* Format is 'XX ' */
@ -58,6 +59,7 @@ struct spmi_log_buffer {
struct spmi_ctrl_data {
u32 cnt;
u32 addr;
struct dentry *dir;
struct list_head node;
struct spmi_controller *ctrl;
};
@ -655,6 +657,7 @@ int spmi_dfs_add_controller(struct spmi_controller *ctrl)
}
ctrl_data->cnt = 1;
ctrl_data->dir = dir;
ctrl_data->ctrl = ctrl;
file = debugfs_create_u32("count", DFS_MODE, dir, &ctrl_data->cnt);
@ -693,6 +696,25 @@ err_create_dir_failed:
return -ENOMEM;
}
/*
* spmi_dfs_create_file: creates a new file in the SPMI debugfs
* @returns valid dentry pointer on success or NULL
*/
struct dentry *spmi_dfs_create_file(struct spmi_controller *ctrl,
const char *name, void *data,
const struct file_operations *fops)
{
struct spmi_ctrl_data *ctrl_data;
list_for_each_entry(ctrl_data, &dbgfs_data.ctrl, node) {
if (ctrl_data->ctrl == ctrl)
return debugfs_create_file(name,
DFS_MODE, ctrl_data->dir, data, fops);
}
return NULL;
}
static void __exit spmi_dfs_delete_all_ctrl(struct list_head *head)
{
struct list_head *pos, *tmp;

8
drivers/spmi/spmi-dbgfs.h
View File

@ -12,10 +12,16 @@
#ifndef _SPMI_DBGFS_H
#define _SPMI_DBGFS_H
#include <linux/debugfs.h>
#ifdef CONFIG_DEBUG_FS
int spmi_dfs_add_controller(struct spmi_controller *ctrl);
#else
int spmi_dfs_add_controller(struct spmi_controller *ctrl) { return 0; }
static int spmi_dfs_add_controller(struct spmi_controller *ctrl) { return 0; }
#endif
struct dentry *spmi_dfs_create_file(struct spmi_controller *ctrl,
const char *name, void *data,
const struct file_operations *fops);
#endif /* _SPMI_DBGFS_H */