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From: Adam Ward <adam.ward@diasemi.com>
To: Mark Brown <broonie@kernel.org>, Rob Herring <robh+dt@kernel.org>
Cc: Liam Girdwood <lgirdwood@gmail.com>,
	Vincent Whitchurch <vincent.whitchurch@axis.com>,
	<linux-kernel@vger.kernel.org>, <devicetree@vger.kernel.org>
Subject: [PATCH 3/9] regulator: da9121: Add device variants
Date: Fri, 20 Nov 2020 12:14:52 +0000	[thread overview]
Message-ID: <9e8c1fe6438ddabf464168e3a8b1c0aa4fea9c14.1605868780.git.Adam.Ward.opensource@diasemi.com> (raw)
In-Reply-To: <cover.1605868780.git.Adam.Ward.opensource@diasemi.com>

Add basic support for configuration to reference variants of this device,
and track the selected variant within the driver.

Signed-off-by: Adam Ward <Adam.Ward.opensource@diasemi.com>
---
 drivers/regulator/da9121-regulator.c | 46 +++++++++++++++++++++++++++++++++---
 1 file changed, 43 insertions(+), 3 deletions(-)

diff --git a/drivers/regulator/da9121-regulator.c b/drivers/regulator/da9121-regulator.c
index c11fe04..5bebdb2 100644
--- a/drivers/regulator/da9121-regulator.c
+++ b/drivers/regulator/da9121-regulator.c
@@ -11,6 +11,12 @@
 #include <linux/i2c.h>
 #include "da9121-regulator.h"
 
+/* Chip data */
+struct da9121 {
+	struct device *dev;
+	int variant_id;
+};
+
 #define DA9121_MIN_MV		300
 #define DA9121_MAX_MV		1900
 #define DA9121_STEP_MV		10
@@ -53,19 +59,46 @@
 };
 
 static const struct of_device_id da9121_dt_ids[] = {
-	{ .compatible = "dlg,da9121", },
+	{ .compatible = "dlg,da9121", .data = (void *) DA9121_TYPE_DA9121_DA9130 },
+	{ .compatible = "dlg,da9130", .data = (void *) DA9121_TYPE_DA9121_DA9130 },
+	{ .compatible = "dlg,da9217", .data = (void *) DA9121_TYPE_DA9217 },
+	{ .compatible = "dlg,da9122", .data = (void *) DA9121_TYPE_DA9122_DA9131 },
+	{ .compatible = "dlg,da9131", .data = (void *) DA9121_TYPE_DA9122_DA9131 },
+	{ .compatible = "dlg,da9220", .data = (void *) DA9121_TYPE_DA9220_DA9132 },
+	{ .compatible = "dlg,da9132", .data = (void *) DA9121_TYPE_DA9220_DA9132 },
 	{ }
 };
 MODULE_DEVICE_TABLE(of, da9121_dt_ids);
 
+static inline int da9121_of_get_id(struct device *dev)
+{
+	const struct of_device_id *id = of_match_device(da9121_dt_ids, dev);
+
+	if (!id) {
+		dev_err(dev, "%s: Failed\n", __func__);
+		return -EINVAL;
+	}
+	return (uintptr_t)id->data;
+}
+
 static int da9121_i2c_probe(struct i2c_client *i2c,
 			    const struct i2c_device_id *id)
 {
+	struct da9121 *chip;
+	int ret = 0;
 	struct device *dev = &i2c->dev;
 	struct regulator_config config = {};
 	struct regulator_dev *rdev;
 	struct regmap *regmap;
 
+	chip = devm_kzalloc(&i2c->dev, sizeof(struct da9121), GFP_KERNEL);
+	if (!chip) {
+		ret = -ENOMEM;
+		goto error;
+	}
+
+	chip->variant_id = da9121_of_get_id(&i2c->dev);
+
 	regmap = devm_regmap_init_i2c(i2c, &da9121_regmap_config);
 	if (IS_ERR(regmap))
 		return PTR_ERR(regmap);
@@ -80,11 +113,18 @@ static int da9121_i2c_probe(struct i2c_client *i2c,
 		return PTR_ERR(rdev);
 	}
 
-	return 0;
+error:
+	return ret;
 }
 
 static const struct i2c_device_id da9121_i2c_id[] = {
-	{ "da9121", 0 },
+	{"da9121", DA9121_TYPE_DA9121_DA9130},
+	{"da9130", DA9121_TYPE_DA9121_DA9130},
+	{"da9217", DA9121_TYPE_DA9217},
+	{"da9122", DA9121_TYPE_DA9122_DA9131},
+	{"da9131", DA9121_TYPE_DA9122_DA9131},
+	{"da9220", DA9121_TYPE_DA9220_DA9132},
+	{"da9132", DA9121_TYPE_DA9220_DA9132},
 	{},
 };
 MODULE_DEVICE_TABLE(i2c, da9121_i2c_id);
-- 
1.9.1


  parent reply	other threads:[~2020-11-20 12:15 UTC|newest]

Thread overview: 19+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2020-11-20 12:14 [PATCH 0/9] regulator: da9121: extend support to variants, add features Adam Ward
2020-11-20 12:14 ` [PATCH 1/9] regulator: Update DA9121 dt-bindings Adam Ward
2020-11-20 13:47   ` Vincent Whitchurch
2020-11-25  9:21     ` Vincent Whitchurch
2020-11-27 13:01       ` Adam Ward
2020-11-27 14:59         ` Mark Brown
2020-11-20 12:14 ` [PATCH 2/9] regulator: da9121: Add header file Adam Ward
2020-11-20 12:14 ` Adam Ward [this message]
2020-11-20 12:14 ` [PATCH 4/9] regulator: da9121: Add device variant details and respective regmaps Adam Ward
2020-11-20 12:45   ` Mark Brown
2020-11-20 12:14 ` [PATCH 5/9] regulator: da9121: Add support for device variants via devicetree Adam Ward
2020-11-20 12:51   ` Mark Brown
2020-11-20 12:14 ` [PATCH 6/9] regulator: da9121: Update registration to support multiple buck variants Adam Ward
2020-11-20 13:06   ` Mark Brown
2020-11-20 12:14 ` [PATCH 7/9] regulator: da9121: add current support Adam Ward
2020-11-20 13:17   ` Mark Brown
2020-11-20 12:14 ` [PATCH 8/9] regulator: da9121: add mode support Adam Ward
2020-11-20 12:14 ` [PATCH 9/9] regulator: da9121: add interrupt support Adam Ward
2020-11-20 13:45   ` Mark Brown

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