drivers/sensor: lps22hh: Enable fetching individual sensor channels

Add the possibility to fetch specific sensor channels independently,
either pressure data with SENSOR_CHAN_PRESS or temperature data
with SENSOR_CHAN_AMBIENT_TEMP.
Additionally, the option to fetch both channels simultaneously remains
available using SENSOR_CHAN_ALL, thus not breaking any samples.

(cherry picked from commit 61536c1)

Original-Signed-off-by: Chris Braissant <chrisbraissant@gmail.com>
GitOrigin-RevId: 61536c1
Change-Id: Ic245b5bc3264358162f979b925645b223d721378
Reviewed-on: https://chromium-review.googlesource.com/c/chromiumos/third_party/zephyr/+/5597077
Tested-by: Fabio Baltieri <fabiobaltieri@google.com>
Commit-Queue: Fabio Baltieri <fabiobaltieri@google.com>
Tested-by: ChromeOS Prod (Robot) <chromeos-ci-prod@chromeos-bot.iam.gserviceaccount.com>
Reviewed-by: Fabio Baltieri <fabiobaltieri@google.com>

drivers/sensor/st/lps22hh/lps22hh.c

@@ -39,15 +39,36 @@ static int lps22hh_sample_fetch(const struct device *dev,
  uint32_t raw_press;
  int16_t raw_temp;
 
- __ASSERT_NO_MSG(chan == SENSOR_CHAN_ALL);
-
- if (lps22hh_pressure_raw_get(ctx, &raw_press) < 0) {
- LOG_DBG("Failed to read sample");
- return -EIO;
- }
- if (lps22hh_temperature_raw_get(ctx, &raw_temp) < 0) {
- LOG_DBG("Failed to read sample");
- return -EIO;
+ __ASSERT_NO_MSG(chan == SENSOR_CHAN_ALL
+ || chan == SENSOR_CHAN_PRESS
+ || chan == SENSOR_CHAN_AMBIENT_TEMP);
+
+ switch (chan) {
+ case SENSOR_CHAN_PRESS:
+ if (lps22hh_pressure_raw_get(ctx, &raw_press) < 0) {
+ LOG_DBG("Failed to read sample");
+ return -EIO;
+ }
+ break;
+ case SENSOR_CHAN_AMBIENT_TEMP:
+ if (lps22hh_temperature_raw_get(ctx, &raw_temp) < 0) {
+ LOG_DBG("Failed to read sample");
+ return -EIO;
+ }
+ break;
+ case SENSOR_CHAN_ALL:
+ if (lps22hh_pressure_raw_get(ctx, &raw_press) < 0) {
+ LOG_DBG("Failed to read sample");
+ return -EIO;
+ }
+ if (lps22hh_temperature_raw_get(ctx, &raw_temp) < 0) {
+ LOG_DBG("Failed to read sample");
+ return -EIO;
+ }
+ break;
+ default:
+ LOG_ERR("Unsupported sensor channel");
+ return -ENOTSUP;
  }
 
  data->sample_press = raw_press;