From: Vasileios Amoiridis <vassilisamir@gmail.com>
Date: Mon, 2 Dec 2024 19:23:40 +0000 (+0100)
Subject: iio: chemical: bme680: add regulators
X-Git-Url: https://www.infradead.org/git/?a=commitdiff_plain;h=601f7269fc2c369403ff7ec4729eb61900cb0ff0;p=users%2Fjedix%2Flinux-maple.git

iio: chemical: bme680: add regulators

Add support for the regulators described in the dt-binding.

Reviewed-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Signed-off-by: Vasileios Amoiridis <vassilisamir@gmail.com>
Link: https://patch.msgid.link/20241202192341.33187-3-vassilisamir@gmail.com
Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
---

diff --git a/drivers/iio/chemical/bme680_core.c b/drivers/iio/chemical/bme680_core.c
index d12270409c8ad..0fb13e36462f7 100644
--- a/drivers/iio/chemical/bme680_core.c
+++ b/drivers/iio/chemical/bme680_core.c
@@ -15,6 +15,7 @@
 #include <linux/log2.h>
 #include <linux/module.h>
 #include <linux/regmap.h>
+#include <linux/regulator/consumer.h>
 
 #include <linux/iio/buffer.h>
 #include <linux/iio/iio.h>
@@ -111,6 +112,8 @@ enum bme680_scan {
 	BME680_GAS,
 };
 
+static const char *const bme680_supply_names[] = { "vdd", "vddio" };
+
 struct bme680_data {
 	struct regmap *regmap;
 	struct bme680_calib bme680;
@@ -1114,6 +1117,14 @@ int bme680_core_probe(struct device *dev, struct regmap *regmap,
 	data->heater_dur = 150;  /* milliseconds */
 	data->preheat_curr_mA = 0;
 
+	ret = devm_regulator_bulk_get_enable(dev, ARRAY_SIZE(bme680_supply_names),
+					     bme680_supply_names);
+	if (ret)
+		return dev_err_probe(dev, ret,
+				     "failed to get and enable supplies.\n");
+
+	fsleep(BME680_STARTUP_TIME_US);
+
 	ret = regmap_write(regmap, BME680_REG_SOFT_RESET, BME680_CMD_SOFTRESET);
 	if (ret < 0)
 		return dev_err_probe(dev, ret, "Failed to reset chip\n");