linux-kernel - [PATCH v2 12/13] iio: chemical: bme680: add regulators

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Message-ID: <20241021195316.58911-13-vassilisamir@gmail.com>
Date: Mon, 21 Oct 2024 21:53:15 +0200
From: Vasileios Amoiridis <vassilisamir@...il.com>
To: jic23@...nel.org,
	lars@...afoo.de,
	robh@...nel.org,
	krzk+dt@...nel.org,
	conor+dt@...nel.org,
	andriy.shevchenko@...ux.intel.com
Cc: vassilisamir@...il.com,
	anshulusr@...il.com,
	gustavograzs@...il.com,
	linux-iio@...r.kernel.org,
	devicetree@...r.kernel.org,
	linux-kernel@...r.kernel.org
Subject: [PATCH v2 12/13] iio: chemical: bme680: add regulators

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

Signed-off-by: Vasileios Amoiridis <vassilisamir@...il.com>
---
 drivers/iio/chemical/bme680_core.c | 15 +++++++++++++++
 1 file changed, 15 insertions(+)

diff --git a/drivers/iio/chemical/bme680_core.c b/drivers/iio/chemical/bme680_core.c
index 8c80a5f1ef9e..2d9d20f203aa 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>
@@ -110,6 +111,10 @@ enum bme680_scan {
 	BME680_GAS,
 };
 
+static const char *const bme680_supply_names[] = { "vdd", "vddio" };
+
+#define BME680_NUM_SUPPLIES ARRAY_SIZE(bme680_supply_names)
+
 struct bme680_data {
 	struct regmap *regmap;
 	struct bme680_calib bme680;
@@ -121,6 +126,8 @@ struct bme680_data {
 	u16 heater_dur;
 	u16 heater_temp;
 
+	struct regulator_bulk_data supplies[BME680_NUM_SUPPLIES];
+
 	struct {
 		s32 chan[4];
 		aligned_s64 ts;
@@ -1114,6 +1121,14 @@ 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, BME680_NUM_SUPPLIES,
+					     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");
-- 
2.43.0