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Date: Mon, 15 Jul 2019 15:19:17 +0200
From: Martin Kepplinger <martin.kepplinger@...i.sm>
To: lorenzo.bianconi83@...il.com, jic23@...nel.org, knaack.h@....de,
lars@...afoo.de, pmeerw@...erw.net
Cc: linux-iio@...r.kernel.org, devicetree@...r.kernel.org,
linux-kernel@...r.kernel.org,
Martin Kepplinger <martin.kepplinger@...i.sm>
Subject: [PATCH 1/3] iio: imu: st_lsm6sdx: move some register definitions to sensor_settings struct
Move some register definitions to the per-device array of struct
st_lsm6dsx_sensor_settings in order to simplify adding new sensor
devices to the driver.
Also, remove completely unused register definitions.
Signed-off-by: Martin Kepplinger <martin.kepplinger@...i.sm>
---
drivers/iio/imu/st_lsm6dsx/st_lsm6dsx.h | 6 ++++
drivers/iio/imu/st_lsm6dsx/st_lsm6dsx_core.c | 31 ++++++++++++++------
2 files changed, 28 insertions(+), 9 deletions(-)
diff --git a/drivers/iio/imu/st_lsm6dsx/st_lsm6dsx.h b/drivers/iio/imu/st_lsm6dsx/st_lsm6dsx.h
index c14bf533b66b..f072ac14f213 100644
--- a/drivers/iio/imu/st_lsm6dsx/st_lsm6dsx.h
+++ b/drivers/iio/imu/st_lsm6dsx/st_lsm6dsx.h
@@ -196,6 +196,9 @@ struct st_lsm6dsx_ext_dev_settings {
/**
* struct st_lsm6dsx_settings - ST IMU sensor settings
* @wai: Sensor WhoAmI default value.
+ * @reg_int1_addr: Control Register address for INT1
+ * @reg_int2_addr: Control Register address for INT2
+ * @reg_reset_addr: register address for reset/reboot
* @max_fifo_size: Sensor max fifo length in FIFO words.
* @id: List of hw id/device name supported by the driver configuration.
* @decimator: List of decimator register info (addr + mask).
@@ -206,6 +209,9 @@ struct st_lsm6dsx_ext_dev_settings {
*/
struct st_lsm6dsx_settings {
u8 wai;
+ u8 reg_int1_addr;
+ u8 reg_int2_addr;
+ u8 reg_reset_addr;
u16 max_fifo_size;
struct {
enum st_lsm6dsx_hw_id hw_id;
diff --git a/drivers/iio/imu/st_lsm6dsx/st_lsm6dsx_core.c b/drivers/iio/imu/st_lsm6dsx/st_lsm6dsx_core.c
index a6702a74570e..7a4fe70a8f20 100644
--- a/drivers/iio/imu/st_lsm6dsx/st_lsm6dsx_core.c
+++ b/drivers/iio/imu/st_lsm6dsx/st_lsm6dsx_core.c
@@ -49,17 +49,12 @@
#include "st_lsm6dsx.h"
-#define ST_LSM6DSX_REG_INT1_ADDR 0x0d
-#define ST_LSM6DSX_REG_INT2_ADDR 0x0e
#define ST_LSM6DSX_REG_FIFO_FTH_IRQ_MASK BIT(3)
#define ST_LSM6DSX_REG_WHOAMI_ADDR 0x0f
-#define ST_LSM6DSX_REG_RESET_ADDR 0x12
#define ST_LSM6DSX_REG_RESET_MASK BIT(0)
#define ST_LSM6DSX_REG_BOOT_MASK BIT(7)
#define ST_LSM6DSX_REG_BDU_ADDR 0x12
#define ST_LSM6DSX_REG_BDU_MASK BIT(6)
-#define ST_LSM6DSX_REG_INT2_ON_INT1_ADDR 0x13
-#define ST_LSM6DSX_REG_INT2_ON_INT1_MASK BIT(5)
#define ST_LSM6DSX_REG_ACC_OUT_X_L_ADDR 0x28
#define ST_LSM6DSX_REG_ACC_OUT_Y_L_ADDR 0x2a
@@ -122,6 +117,9 @@ static const struct st_lsm6dsx_fs_table_entry st_lsm6dsx_fs_table[] = {
static const struct st_lsm6dsx_settings st_lsm6dsx_sensor_settings[] = {
{
.wai = 0x69,
+ .reg_int1_addr = 0x0d,
+ .reg_int2_addr = 0x0e,
+ .reg_reset_addr = 0x12,
.max_fifo_size = 1365,
.id = {
{
@@ -172,6 +170,9 @@ static const struct st_lsm6dsx_settings st_lsm6dsx_sensor_settings[] = {
},
{
.wai = 0x69,
+ .reg_int1_addr = 0x0d,
+ .reg_int2_addr = 0x0e,
+ .reg_reset_addr = 0x12,
.max_fifo_size = 682,
.id = {
{
@@ -222,6 +223,9 @@ static const struct st_lsm6dsx_settings st_lsm6dsx_sensor_settings[] = {
},
{
.wai = 0x6a,
+ .reg_int1_addr = 0x0d,
+ .reg_int2_addr = 0x0e,
+ .reg_reset_addr = 0x12,
.max_fifo_size = 682,
.id = {
{
@@ -278,6 +282,9 @@ static const struct st_lsm6dsx_settings st_lsm6dsx_sensor_settings[] = {
},
{
.wai = 0x6c,
+ .reg_int1_addr = 0x0d,
+ .reg_int2_addr = 0x0e,
+ .reg_reset_addr = 0x12,
.max_fifo_size = 512,
.id = {
{
@@ -349,6 +356,9 @@ static const struct st_lsm6dsx_settings st_lsm6dsx_sensor_settings[] = {
},
{
.wai = 0x6b,
+ .reg_int1_addr = 0x0d,
+ .reg_int2_addr = 0x0e,
+ .reg_reset_addr = 0x12,
.max_fifo_size = 512,
.id = {
{
@@ -391,6 +401,9 @@ static const struct st_lsm6dsx_settings st_lsm6dsx_sensor_settings[] = {
},
{
.wai = 0x6b,
+ .reg_int1_addr = 0x0d,
+ .reg_int2_addr = 0x0e,
+ .reg_reset_addr = 0x12,
.max_fifo_size = 512,
.id = {
{
@@ -873,10 +886,10 @@ static int st_lsm6dsx_get_drdy_reg(struct st_lsm6dsx_hw *hw, u8 *drdy_reg)
switch (drdy_pin) {
case 1:
- *drdy_reg = ST_LSM6DSX_REG_INT1_ADDR;
+ *drdy_reg = hw->settings->reg_int1_addr;
break;
case 2:
- *drdy_reg = ST_LSM6DSX_REG_INT2_ADDR;
+ *drdy_reg = hw->settings->reg_int2_addr;
break;
default:
dev_err(hw->dev, "unsupported data ready pin\n");
@@ -976,7 +989,7 @@ static int st_lsm6dsx_init_device(struct st_lsm6dsx_hw *hw)
int err;
/* device sw reset */
- err = regmap_update_bits(hw->regmap, ST_LSM6DSX_REG_RESET_ADDR,
+ err = regmap_update_bits(hw->regmap, hw->settings->reg_reset_addr,
ST_LSM6DSX_REG_RESET_MASK,
FIELD_PREP(ST_LSM6DSX_REG_RESET_MASK, 1));
if (err < 0)
@@ -985,7 +998,7 @@ static int st_lsm6dsx_init_device(struct st_lsm6dsx_hw *hw)
msleep(50);
/* reload trimming parameter */
- err = regmap_update_bits(hw->regmap, ST_LSM6DSX_REG_RESET_ADDR,
+ err = regmap_update_bits(hw->regmap, hw->settings->reg_reset_addr,
ST_LSM6DSX_REG_BOOT_MASK,
FIELD_PREP(ST_LSM6DSX_REG_BOOT_MASK, 1));
if (err < 0)
--
2.20.1
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