xiaomi-sm8450/android_kernel_xiaomi_sm8450
1
0
Fork 0
Code Issues Pull Requests Actions Packages Projects Releases Wiki Activity

lis3: update documentation and comments

Browse Source 
Most of the documentation and comments were written when the driver was
only supporting one type of chip, only via ACPI/HP. Update the info to
the much clearer understanding that we have now.

Signed-off-by: Éric Piel <eric.piel@tremplin-utc.net>
Signed-off-by: Samu Onkalo <samu.p.onkalo@nokia.com>
Cc: Pavel Machek <pavel@ucw.cz>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
This commit is contained in:
Éric Piel
2009-12-14 18:01:39 -08:00
committed by Linus Torvalds
parent 66c8569bf9
commit bc62c14717
4 changed files with 52 additions and 42 deletions
Download Patch File Download Diff File Expand all files Collapse all files

20
drivers/hwmon/lis3lv02d.c
View File

@@ -43,7 +43,7 @@
#define MDPS_POLL_INTERVAL 50
/*
* The sensor can also generate interrupts (DRDY) but it's pretty pointless
* because their are generated even if the data do not change. So it's better
* because they are generated even if the data do not change. So it's better
* to keep the interrupt for the free-fall event. The values are updated at
* 40Hz (at the lowest frequency), but as it can be pretty time consuming on
* some low processor, we poll the sensor only at 20Hz... enough for the
@@ -65,7 +65,7 @@ static s16 lis3lv02d_read_8(struct lis3lv02d *lis3, int reg)
return lo;
}
static s16 lis3lv02d_read_16(struct lis3lv02d *lis3, int reg)
static s16 lis3lv02d_read_12(struct lis3lv02d *lis3, int reg)
{
u8 lo, hi;
@@ -411,20 +411,20 @@ EXPORT_SYMBOL_GPL(lis3lv02d_remove_fs);
/*
* Initialise the accelerometer and the various subsystems.
* Should be rather independant of the bus system.
* Should be rather independent of the bus system.
*/
int lis3lv02d_init_device(struct lis3lv02d *dev)
{
dev->whoami = lis3lv02d_read_8(dev, WHO_AM_I);
switch (dev->whoami) {
case LIS_DOUBLE_ID:
printk(KERN_INFO DRIVER_NAME ": 2-byte sensor found\n");
dev->read_data = lis3lv02d_read_16;
case WAI_12B:
printk(KERN_INFO DRIVER_NAME ": 12 bits sensor found\n");
dev->read_data = lis3lv02d_read_12;
dev->mdps_max_val = 2048;
break;
case LIS_SINGLE_ID:
printk(KERN_INFO DRIVER_NAME ": 1-byte sensor found\n");
case WAI_8B:
printk(KERN_INFO DRIVER_NAME ": 8 bits sensor found\n");
dev->read_data = lis3lv02d_read_8;
dev->mdps_max_val = 128;
break;
@@ -445,7 +445,7 @@ int lis3lv02d_init_device(struct lis3lv02d *dev)
if (dev->pdata) {
struct lis3lv02d_platform_data *p = dev->pdata;
if (p->click_flags && (dev->whoami == LIS_SINGLE_ID)) {
if (p->click_flags && (dev->whoami == WAI_8B)) {
dev->write(dev, CLICK_CFG, p->click_flags);
dev->write(dev, CLICK_TIMELIMIT, p->click_time_limit);
dev->write(dev, CLICK_LATENCY, p->click_latency);
@@ -456,7 +456,7 @@ int lis3lv02d_init_device(struct lis3lv02d *dev)
(p->click_thresh_y << 4));
}
if (p->wakeup_flags && (dev->whoami == LIS_SINGLE_ID)) {
if (p->wakeup_flags && (dev->whoami == WAI_8B)) {
dev->write(dev, FF_WU_CFG_1, p->wakeup_flags);
dev->write(dev, FF_WU_THS_1, p->wakeup_thresh & 0x7f);
/* default to 2.5ms for now */