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authorAnilKumar Ch <anilkumar@ti.com>2012-09-24 13:23:49 +0400
committerGreg Kroah-Hartman <gregkh@linuxfoundation.org>2012-09-27 00:24:25 +0400
commite2b2ed8365e040b274dd23bdabd34ec3b0e43137 (patch)
treec4d4a0d8c2488e9f339860b92dc0f10bdc4b3a86 /drivers/misc/lis3lv02d
parentbcdee04ea7ae0406ae69094f6df1aacb66a69a0b (diff)
downloadlinux-e2b2ed8365e040b274dd23bdabd34ec3b0e43137.tar.xz
lis3lv02d: fix some comments specific to lis331dlh driver
Fix some minor problems in comments of lis331dlh driver * correct comments with respect to 2G sensitivity * correct typo lis3331dlh mistake to lis331dlh * add comment to say only 2G range is supported * change the function name from lis3lv02d_read_16 to lis331dlh_read_data. * update i2c_device_id table entry to maintaine consistancy * update sensor display message Signed-off-by: AnilKumar Ch <anilkumar@ti.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Diffstat (limited to 'drivers/misc/lis3lv02d')
-rw-r--r--drivers/misc/lis3lv02d/lis3lv02d.c13
-rw-r--r--drivers/misc/lis3lv02d/lis3lv02d.h2
-rw-r--r--drivers/misc/lis3lv02d/lis3lv02d_i2c.c2
3 files changed, 9 insertions, 8 deletions
diff --git a/drivers/misc/lis3lv02d/lis3lv02d.c b/drivers/misc/lis3lv02d/lis3lv02d.c
index 9d37c576d526..e670072fe24c 100644
--- a/drivers/misc/lis3lv02d/lis3lv02d.c
+++ b/drivers/misc/lis3lv02d/lis3lv02d.c
@@ -81,9 +81,10 @@
#define LIS3_SENSITIVITY_8B (18 * LIS3_ACCURACY)
/*
- * LIS3331DLH spec says 1LSBs corresponds 4G/1024 -> 1LSB is 1000/1024 mG.
- * Sensitivity values for +/-2G, outdata in 12 bits for +/-2G scale. so 4
- * bits adjustment is required
+ * LIS331DLH spec says 1LSBs corresponds 4G/4096 -> 1LSB is 1000/1024 mG.
+ * Below macros defines sensitivity values for +/-2G. Dataout bits for
+ * +/-2G range is 12 bits so 4 bits adjustment must be done to get 12bit
+ * data from 16bit value. Currently this driver supports only 2G range.
*/
#define LIS3DLH_SENSITIVITY_2G ((LIS3_ACCURACY * 1000) / 1024)
#define SHIFT_ADJ_2G 4
@@ -144,7 +145,7 @@ static s16 lis3lv02d_read_12(struct lis3lv02d *lis3, int reg)
}
/* 12bits for 2G range, 13 bits for 4G range and 14 bits for 8G range */
-static s16 lis3lv02d_read_16(struct lis3lv02d *lis3, int reg)
+static s16 lis331dlh_read_data(struct lis3lv02d *lis3, int reg)
{
u8 lo, hi;
int v;
@@ -987,8 +988,8 @@ int lis3lv02d_init_device(struct lis3lv02d *lis3)
lis3->scale = LIS3_SENSITIVITY_8B;
break;
case WAI_3DLH:
- pr_info("16 bits 3DLH sensor found\n");
- lis3->read_data = lis3lv02d_read_16;
+ pr_info("16 bits lis331dlh sensor found\n");
+ lis3->read_data = lis331dlh_read_data;
lis3->mdps_max_val = 2048; /* 12 bits for 2G */
lis3->shift_adj = SHIFT_ADJ_2G;
lis3->pwron_delay = LIS3_PWRON_DELAY_WAI_8B;
diff --git a/drivers/misc/lis3lv02d/lis3lv02d.h b/drivers/misc/lis3lv02d/lis3lv02d.h
index c1a545e136a0..387504a37937 100644
--- a/drivers/misc/lis3lv02d/lis3lv02d.h
+++ b/drivers/misc/lis3lv02d/lis3lv02d.h
@@ -104,9 +104,9 @@ enum lis3_who_am_i {
};
enum lis3_type {
+ LIS3LV02D,
LIS3DC,
HP3DC,
- LIS3LV02D,
LIS2302D,
LIS331DLF,
LIS331DLH,
diff --git a/drivers/misc/lis3lv02d/lis3lv02d_i2c.c b/drivers/misc/lis3lv02d/lis3lv02d_i2c.c
index 15255eb8ac81..2c0a1148ee22 100644
--- a/drivers/misc/lis3lv02d/lis3lv02d_i2c.c
+++ b/drivers/misc/lis3lv02d/lis3lv02d_i2c.c
@@ -235,7 +235,7 @@ static int lis3_i2c_runtime_resume(struct device *dev)
#endif /* CONFIG_PM_RUNTIME */
static const struct i2c_device_id lis3lv02d_id[] = {
- {"lis3lv02d", 0 },
+ {"lis3lv02d", LIS3LV02D},
{"lis331dlh", LIS331DLH},
{}
};