linux-kernel - [PATCH v3 2/4] mfd: palmas: Constify .data in OF table and {palmas,tps65917}_irq

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Date:   Thu, 31 Aug 2023 19:31:51 +0100
From:   Biju Das <biju.das.jz@...renesas.com>
To:     Tony Lindgren <tony@...mide.com>, Lee Jones <lee@...nel.org>
Cc:     Biju Das <biju.das.jz@...renesas.com>, linux-omap@...r.kernel.org,
        linux-kernel@...r.kernel.org,
        Andy Shevchenko <andriy.shevchenko@...ux.intel.com>
Subject: [PATCH v3 2/4] mfd: palmas: Constify .data in OF table and {palmas,tps65917}_irq_chip

Constify .data in OF table and {palmas,tps65917}_irq_chip and replace
the variable *features->features in struct palmas_driver_data and
drop the {palmas,tps659038}_features variables and use their values
directly in the named initialization.

Signed-off-by: Biju Das <biju.das.jz@...renesas.com>
---
v2->v3:
 * Restored the OF table position and moved near to the user in patch#3.
v1->v2:
 * Moved the OF table just above its user.
 * Removed trailing comma from the terminator entry for the OF table.
---
 drivers/mfd/palmas.c | 27 +++++++++++----------------
 1 file changed, 11 insertions(+), 16 deletions(-)

diff --git a/drivers/mfd/palmas.c b/drivers/mfd/palmas.c
index 769538b50903..3c0a3d644834 100644
--- a/drivers/mfd/palmas.c
+++ b/drivers/mfd/palmas.c
@@ -296,7 +296,7 @@ static const struct regmap_irq palmas_irqs[] = {
 	},
 };
 
-static struct regmap_irq_chip palmas_irq_chip = {
+static const struct regmap_irq_chip palmas_irq_chip = {
 	.name = "palmas",
 	.irqs = palmas_irqs,
 	.num_irqs = ARRAY_SIZE(palmas_irqs),
@@ -309,7 +309,7 @@ static struct regmap_irq_chip palmas_irq_chip = {
 			PALMAS_INT1_MASK),
 };
 
-static struct regmap_irq_chip tps65917_irq_chip = {
+static const struct regmap_irq_chip tps65917_irq_chip = {
 	.name = "tps65917",
 	.irqs = tps65917_irqs,
 	.num_irqs = ARRAY_SIZE(tps65917_irqs),
@@ -463,26 +463,21 @@ static void palmas_power_off(void)
 				__func__, ret);
 }
 
-static unsigned int palmas_features = PALMAS_PMIC_FEATURE_SMPS10_BOOST;
-static unsigned int tps659038_features;
-
 struct palmas_driver_data {
-	unsigned int *features;
-	struct regmap_irq_chip *irq_chip;
+	unsigned int features;
+	const struct regmap_irq_chip *irq_chip;
 };
 
-static struct palmas_driver_data palmas_data = {
-	.features = &palmas_features,
+static const struct palmas_driver_data palmas_data = {
+	.features = PALMAS_PMIC_FEATURE_SMPS10_BOOST,
 	.irq_chip = &palmas_irq_chip,
 };
 
-static struct palmas_driver_data tps659038_data = {
-	.features = &tps659038_features,
+static const struct palmas_driver_data tps659038_data = {
 	.irq_chip = &palmas_irq_chip,
 };
 
-static struct palmas_driver_data tps65917_data = {
-	.features = &tps659038_features,
+static const struct palmas_driver_data tps65917_data = {
 	.irq_chip = &tps65917_irq_chip,
 };
 
@@ -507,7 +502,7 @@ static int palmas_i2c_probe(struct i2c_client *i2c)
 {
 	struct palmas *palmas;
 	struct palmas_platform_data *pdata;
-	struct palmas_driver_data *driver_data;
+	const struct palmas_driver_data *driver_data;
 	struct device_node *node = i2c->dev.of_node;
 	int ret = 0, i;
 	unsigned int reg, addr;
@@ -535,8 +530,8 @@ static int palmas_i2c_probe(struct i2c_client *i2c)
 	palmas->dev = &i2c->dev;
 	palmas->irq = i2c->irq;
 
-	driver_data = (struct palmas_driver_data *) device_get_match_data(&i2c->dev);
-	palmas->features = *driver_data->features;
+	driver_data = device_get_match_data(&i2c->dev);
+	palmas->features = driver_data->features;
 
 	for (i = 0; i < PALMAS_NUM_CLIENTS; i++) {
 		if (i == 0)
-- 
2.25.1