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wt6670: add QC3P firmware num node to /proc/driver

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Adding a node to the power supply will affect the IIC timing,
adding to the IIO system file path is not fixed,
so add the node to the proc

Change-Id: Ib4842d6eaf37daf53e9c6bdb2a8f5d2a90694c38
Signed-off-by: huaqin87 <huaqin87@motorola.com>
Reviewed-on: https://gerrit.mot.com/2157051
SME-Granted: SME Approvals Granted
SLTApproved: Slta Waiver
Tested-by: Jira Key
Reviewed-by: Yuecai Liu <liuyc20@motorola.com>
Reviewed-by: Huosheng Liao <liaohs@motorola.com>
Submit-Approved: Jira Key
This commit is contained in:
huaqin87 2021-12-29 17:13:54 +08:00 • committed by zhaozhenfei
commit 0652de385b
1 changed files with 55 additions and 0 deletions
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55
drivers/power/mmi_qc3p_wt6670f/wt6670f_qc3p.c
View file

@ -18,6 +18,10 @@
#include <linux/power_supply.h>
#include <linux/regulator/driver.h>
#include "wt6670f.h"
#include <linux/proc_fs.h>
#include <linux/uaccess.h>
#define MAX_USER_STR 1024
static DEFINE_MUTEX(wt6670f_i2c_access);
//static DEFINE_MUTEX(wt6670f_access_lock);
@ -28,6 +32,55 @@ struct wt6670f *_wt = NULL;
int g_qc3p_id = 0;
int m_chg_type = 0;
bool qc3p_z350_init_ok = false;
static struct proc_dir_entry *procfs_file;
int wt6670f_get_firmware_version(void);
int z350_get_firmware_version(void);
static int mmi_wt6670f_seq_show(struct seq_file *f, void *ptr)
{
int result;
if(QC3P_WT6670F == g_qc3p_id){
result = wt6670f_get_firmware_version();
pr_info("wt6670 get wt6670f_firmware_num:%d\n", result);
} else if(QC3P_Z350 == g_qc3p_id){
result = z350_get_firmware_version();
pr_info("z350 get z350_get_firmware_version:0x%x\n", result);
} else {
result = 0;
pr_info("could not get device id for used\n");
}
seq_printf(f, "%d", result);
return 0;
}
static int mmi_wt6670f_open(struct inode *inode, struct file *file)
{
return single_open(file, mmi_wt6670f_seq_show, inode->i_private);
}
static ssize_t mmi_wt6670f_write(struct file *file, const char __user *buf,
size_t count, loff_t *offset)
{
char buffer[MAX_USER_STR];
const size_t maxlen = sizeof(buffer) - 1;
memset(buffer, 0, sizeof(buffer));
if (copy_from_user(buffer, buf, count > maxlen ? maxlen : count))
return -EFAULT;
return count;
}
static const struct file_operations mmi_wt6670f_operations = {
.open = mmi_wt6670f_open,
.read = seq_read,
.write = mmi_wt6670f_write,
.llseek = seq_lseek,
.release = single_release,
};
static int __wt6670f_write_word(struct wt6670f *wt, u8 reg, u16 data)
{
@ -787,6 +840,8 @@ static int wt6670f_i2c_probe(struct i2c_client *client,
if (gpio_direction_input(wt6670f_int_pin))
pr_info("[%s] gpio_direction_input wt6670f_int_pin failed", __func__);
probe_out:
/* Create the procfs file at /proc/driver/wt6670f_firmware_num */
procfs_file = proc_create("driver/wt6670f_firmware_num",0777, NULL, &mmi_wt6670f_operations);
return 0;
}