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drivers: sensor: nxp: add code judge whether read back correctly

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find a sensor driver bug don't judge the data whether read back
correctly, deal with buffer data directly.

Signed-off-by: Lucien Zhao <lucien.zhao@nxp.com>
This commit is contained in:
Lucien Zhao 2024-12-10 17:32:27 +08:00 committed by Benjamin Cabé
parent a831f7df6d
commit c0b21f4a30
1 changed files with 7 additions and 2 deletions
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9
drivers/sensor/nxp/p3t1755/p3t1755.c
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@ -51,7 +51,7 @@ static int p3t1755_sample_fetch(const struct device *dev, enum sensor_channel ch
{
const struct p3t1755_config *config = dev->config;
struct p3t1755_data *data = dev->data;
uint8_t raw_temp[2];
uint8_t raw_temp[2] = {0};
if (chan != SENSOR_CHAN_ALL && chan != SENSOR_CHAN_AMBIENT_TEMP) {
LOG_ERR("Invalid channel provided");
@ -65,7 +65,12 @@ static int p3t1755_sample_fetch(const struct device *dev, enum sensor_channel ch
k_sleep(K_MSEC(12));
}
config->ops.read(dev, P3T1755_TEMPERATURE_REG, raw_temp, 2);
int status = config->ops.read(dev, P3T1755_TEMPERATURE_REG, raw_temp, 2);
if (status) {
LOG_ERR("read return error %d", status);
return -ENOTSUP;
}
/* Byte 1 contains the MSByte and Byte 2 contains the LSByte, we need to swap the 2 bytes.
* The 4 least significant bits of the LSByte are zero and should be ignored.