Signed-off-by: JuenKit Yip <JuenKit_Yip@xxxxxxxxxxx>
---
Documentation/hwmon/sht3x.rst | 12 +++++------
drivers/hwmon/sht3x.c | 32
++++++++++++-----------------
include/linux/platform_data/sht3x.h | 15 --------------
3 files changed, 18 insertions(+), 41 deletions(-)
delete mode 100644 include/linux/platform_data/sht3x.h
diff --git a/Documentation/hwmon/sht3x.rst
b/Documentation/hwmon/sht3x.rst
index 95a850d5b..2c87c8f58 100644
--- a/Documentation/hwmon/sht3x.rst
+++ b/Documentation/hwmon/sht3x.rst
@@ -28,28 +28,26 @@ The device communicates with the I2C protocol.
Sensors can have the I2C
addresses 0x44 or 0x45, depending on the wiring. See
Documentation/i2c/instantiating-devices.rst for methods to
instantiate the device.
-There are two options configurable by means of sht3x_platform_data:
+This driver supports block and non-block mode:
-1. blocking (pull the I2C clock line down while performing the
measurement) or
+ blocking (pull the I2C clock line down while performing the
measurement) or
non-blocking mode. Blocking mode will guarantee the fastest
result but
the I2C bus will be busy during that time. By default,
non-blocking mode
is used. Make sure clock-stretching works properly on your
device if you
want to use blocking mode.
-2. high or low accuracy. High accuracy is used by default and
using it is
- strongly recommended.
The sht3x sensor supports a single shot mode as well as 5
periodic measure
modes, which can be controlled with the update_interval sysfs
interface.
The allowed update_interval in milliseconds are as follows:
- ===== ======= ====================
- 0 single shot mode
+ ===== ======= ==========================
+ 0 single shot mode(blocking)
2000 0.5 Hz periodic measurement
1000 1 Hz periodic measurement
500 2 Hz periodic measurement
250 4 Hz periodic measurement
100 10 Hz periodic measurement
- ===== ======= ====================
+ ===== ======= ==========================
In the periodic measure mode, the sensor automatically triggers
a measurement
with the configured update interval on the chip. When a
temperature or humidity
diff --git a/drivers/hwmon/sht3x.c b/drivers/hwmon/sht3x.c
index 8305e44d9..5bc0001b1 100644
--- a/drivers/hwmon/sht3x.c
+++ b/drivers/hwmon/sht3x.c
@@ -20,13 +20,12 @@
#include <linux/module.h>
#include <linux/slab.h>
#include <linux/jiffies.h>
-#include <linux/platform_data/sht3x.h>
-/* commands (high precision mode) */
+/* commands (high repeatability mode) */
static const unsigned char sht3x_cmd_measure_blocking_hpm[] = {
0x2c, 0x06 };
static const unsigned char sht3x_cmd_measure_nonblocking_hpm[] =
{ 0x24, 0x00 };
-/* commands (low power mode) */
+/* commands (low repeatability mode) */
static const unsigned char sht3x_cmd_measure_blocking_lpm[] = {
0x2c, 0x10 };
static const unsigned char sht3x_cmd_measure_nonblocking_lpm[] =
{ 0x24, 0x16 };
@@ -69,9 +68,14 @@ enum sht3x_limits {
limit_min_hyst,
};
+enum sht3x_repeatability {
+ low_repeatability,
+ high_repeatability,
+};
+
DECLARE_CRC8_TABLE(sht3x_crc8_table);
-/* periodic measure commands (high precision mode) */
+/* periodic measure commands (high repeatability mode) */
static const char
periodic_measure_commands_hpm[][SHT3X_CMD_LENGTH] = {
/* 0.5 measurements per second */
{0x20, 0x32},
@@ -85,7 +89,7 @@ static const char
periodic_measure_commands_hpm[][SHT3X_CMD_LENGTH] = {
{0x27, 0x37},
};
-/* periodic measure commands (low power mode) */
+/* periodic measure commands (low repeatability mode) */
static const char
periodic_measure_commands_lpm[][SHT3X_CMD_LENGTH] = {
/* 0.5 measurements per second */
{0x20, 0x2f},
@@ -132,12 +136,11 @@ struct sht3x_data {
struct mutex data_lock; /* lock for updating driver data */
u8 mode;
+ enum sht3x_repeatability repeatability;
const unsigned char *command;
u32 wait_time; /* in us*/
unsigned long last_update; /* last update in periodic mode*/
- struct sht3x_platform_data setup;
-
/*
* cached values for temperature and humidity and limits
* the limits arrays have the following order:
@@ -441,13 +444,8 @@ static void sht3x_select_command(struct
sht3x_data *data)
if (data->mode > 0) {
data->command = sht3x_cmd_measure_periodic_mode;
data->wait_time = 0;
- } else if (data->setup.blocking_io) {
- data->command = data->setup.high_precision ?
- sht3x_cmd_measure_blocking_hpm :
- sht3x_cmd_measure_blocking_lpm;
- data->wait_time = 0;