linux-kernel - [PATCH v2 18/32] mfd: sec: change device

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Message-Id: <20250328-s2mpg10-v2-18-b54dee33fb6b@linaro.org>
Date: Fri, 28 Mar 2025 13:29:04 +0000
From: André Draszik <andre.draszik@...aro.org>
To: Krzysztof Kozlowski <krzk@...nel.org>, Lee Jones <lee@...nel.org>, 
 Rob Herring <robh@...nel.org>, Conor Dooley <conor+dt@...nel.org>, 
 Sylwester Nawrocki <s.nawrocki@...sung.com>, 
 Chanwoo Choi <cw00.choi@...sung.com>, Alim Akhtar <alim.akhtar@...sung.com>, 
 Michael Turquette <mturquette@...libre.com>, 
 Stephen Boyd <sboyd@...nel.org>, Russell King <linux@...linux.org.uk>, 
 Catalin Marinas <catalin.marinas@....com>, Will Deacon <will@...nel.org>, 
 Alexandre Belloni <alexandre.belloni@...tlin.com>
Cc: Peter Griffin <peter.griffin@...aro.org>, 
 Tudor Ambarus <tudor.ambarus@...aro.org>, 
 Will McVicker <willmcvicker@...gle.com>, kernel-team@...roid.com, 
 linux-kernel@...r.kernel.org, linux-samsung-soc@...r.kernel.org, 
 devicetree@...r.kernel.org, linux-clk@...r.kernel.org, 
 linux-arm-kernel@...ts.infradead.org, linux-rtc@...r.kernel.org, 
 André Draszik <andre.draszik@...aro.org>
Subject: [PATCH v2 18/32] mfd: sec: change device_type to int

Now that sec-i2c doesn't match device type by pointer casting anymore,
we can switch the device type from unsigned long to int easily.

This saves a few bytes in struct sec_pmic_dev due to member alignment.

Signed-off-by: André Draszik <andre.draszik@...aro.org>
---
 drivers/mfd/sec-common.c         | 9 ++++-----
 drivers/mfd/sec-core.h           | 5 ++---
 drivers/mfd/sec-i2c.c            | 2 +-
 drivers/mfd/sec-irq.c            | 5 ++---
 include/linux/mfd/samsung/core.h | 2 +-
 5 files changed, 10 insertions(+), 13 deletions(-)

diff --git a/drivers/mfd/sec-common.c b/drivers/mfd/sec-common.c
index bb0eb3c2d9a260ddf2fb110cc255f08a0d25230d..4871492548f5efde4248b5b3db74045ec8c9d676 100644
--- a/drivers/mfd/sec-common.c
+++ b/drivers/mfd/sec-common.c
@@ -155,9 +155,8 @@ sec_pmic_parse_dt_pdata(struct device *dev)
 	return pd;
 }
 
-int sec_pmic_probe(struct device *dev, unsigned long device_type,
-		   unsigned int irq, struct regmap *regmap,
-		   struct i2c_client *client)
+int sec_pmic_probe(struct device *dev, int device_type, unsigned int irq,
+		   struct regmap *regmap, struct i2c_client *client)
 {
 	struct sec_platform_data *pdata;
 	const struct mfd_cell *sec_devs;
@@ -232,7 +231,7 @@ int sec_pmic_probe(struct device *dev, unsigned long device_type,
 		break;
 	default:
 		return dev_err_probe(sec_pmic->dev, -EINVAL,
-				     "Unsupported device type %lu\n",
+				     "Unsupported device type %d\n",
 				     sec_pmic->device_type);
 	}
 	ret = devm_mfd_add_devices(sec_pmic->dev, -1, sec_devs, num_sec_devs,
@@ -266,7 +265,7 @@ void sec_pmic_shutdown(struct device *dev)
 		 * ignore the rest.
 		 */
 		dev_warn(sec_pmic->dev,
-			 "Unsupported device %lu for manual power off\n",
+			 "Unsupported device %d for manual power off\n",
 			 sec_pmic->device_type);
 		return;
 	}
diff --git a/drivers/mfd/sec-core.h b/drivers/mfd/sec-core.h
index a0a3488924d96f69373e7569079cfefd0544ca26..92c7558ab8b0de44a52e028eeb7998e38358cb4c 100644
--- a/drivers/mfd/sec-core.h
+++ b/drivers/mfd/sec-core.h
@@ -14,9 +14,8 @@ struct i2c_client;
 
 extern const struct dev_pm_ops sec_pmic_pm_ops;
 
-int sec_pmic_probe(struct device *dev, unsigned long device_type,
-		   unsigned int irq, struct regmap *regmap,
-		   struct i2c_client *client);
+int sec_pmic_probe(struct device *dev, int device_type, unsigned int irq,
+		   struct regmap *regmap, struct i2c_client *client);
 void sec_pmic_shutdown(struct device *dev);
 
 int sec_irq_init(struct sec_pmic_dev *sec_pmic);
diff --git a/drivers/mfd/sec-i2c.c b/drivers/mfd/sec-i2c.c
index 41b09f5e3c49f410604a5d47e625cbb37d7f5fa2..2ccb494c8c024361c78e92be71ce9c215757dd89 100644
--- a/drivers/mfd/sec-i2c.c
+++ b/drivers/mfd/sec-i2c.c
@@ -27,7 +27,7 @@
 
 struct sec_pmic_i2c_platform_data {
 	const struct regmap_config *regmap_cfg;
-	unsigned long device_type;
+	int device_type;
 };
 
 static bool s2mpa01_volatile(struct device *dev, unsigned int reg)
diff --git a/drivers/mfd/sec-irq.c b/drivers/mfd/sec-irq.c
index 79a3b33441fa5ab48b4b233eb8d89b4c20c142ed..c4db58813059f07372679223ec570ed07f52cd73 100644
--- a/drivers/mfd/sec-irq.c
+++ b/drivers/mfd/sec-irq.c
@@ -449,10 +449,9 @@ static const struct regmap_irq_chip s5m8767_irq_chip = {
 int sec_irq_init(struct sec_pmic_dev *sec_pmic)
 {
 	int ret = 0;
-	int type = sec_pmic->device_type;
 	const struct regmap_irq_chip *sec_irq_chip;
 
-	switch (type) {
+	switch (sec_pmic->device_type) {
 	case S5M8767X:
 		sec_irq_chip = &s5m8767_irq_chip;
 		break;
@@ -484,7 +483,7 @@ int sec_irq_init(struct sec_pmic_dev *sec_pmic)
 		break;
 	default:
 		return dev_err_probe(sec_pmic->dev, -EINVAL,
-				     "Unsupported device type %lu\n",
+				     "Unsupported device type %d\n",
 				     sec_pmic->device_type);
 	}
 
diff --git a/include/linux/mfd/samsung/core.h b/include/linux/mfd/samsung/core.h
index c1102324172a9b6bd6072b5929a4866d6c9653fa..d785e101fe795a5d8f9cccf4ccc4232437e89416 100644
--- a/include/linux/mfd/samsung/core.h
+++ b/include/linux/mfd/samsung/core.h
@@ -67,7 +67,7 @@ struct sec_pmic_dev {
 	struct regmap *regmap_pmic;
 	struct i2c_client *i2c;
 
-	unsigned long device_type;
+	int device_type;
 	int irq;
 	struct regmap_irq_chip_data *irq_data;
 };

-- 
2.49.0.472.ge94155a9ec-goog