linux-kernel - [PATCH v2] mfd: arizona: Split of_match table into I2C and SPI versions

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Date:   Tue, 28 Sep 2021 17:30:35 +0100
From:   Charles Keepax <ckeepax@...nsource.cirrus.com>
To:     <lee.jones@...aro.org>
CC:     <broonie@...nel.org>, <linux-kernel@...r.kernel.org>,
        <patches@...nsource.cirrus.com>
Subject: [PATCH v2] mfd: arizona: Split of_match table into I2C and SPI versions

The Arizona driver has both some devices which only have an I2C
interface and some which only have a SPI interface. Currently both of
these share an of_match table, but this means inapproriate compatibles
are available for each interface. Tidy this up by creating a table for
each interface listing only the appropriate compatibles.

Reported-by: Mark Brown <broonie@...nel.org>
Signed-off-by: Charles Keepax <ckeepax@...nsource.cirrus.com>
---

Changes since v1:
 - Drop inappropriate fixes tag

Thanks,
Charles

 drivers/mfd/arizona-core.c | 13 -------------
 drivers/mfd/arizona-i2c.c  | 14 +++++++++++++-
 drivers/mfd/arizona-spi.c  | 13 ++++++++++++-
 drivers/mfd/arizona.h      |  2 --
 4 files changed, 25 insertions(+), 17 deletions(-)

diff --git a/drivers/mfd/arizona-core.c b/drivers/mfd/arizona-core.c
index 9323b1e3a69ef..cbf1dd90b70d5 100644
--- a/drivers/mfd/arizona-core.c
+++ b/drivers/mfd/arizona-core.c
@@ -845,19 +845,6 @@ static int arizona_of_get_core_pdata(struct arizona *arizona)
 
 	return 0;
 }
-
-const struct of_device_id arizona_of_match[] = {
-	{ .compatible = "wlf,wm5102", .data = (void *)WM5102 },
-	{ .compatible = "wlf,wm5110", .data = (void *)WM5110 },
-	{ .compatible = "wlf,wm8280", .data = (void *)WM8280 },
-	{ .compatible = "wlf,wm8997", .data = (void *)WM8997 },
-	{ .compatible = "wlf,wm8998", .data = (void *)WM8998 },
-	{ .compatible = "wlf,wm1814", .data = (void *)WM1814 },
-	{ .compatible = "wlf,wm1831", .data = (void *)WM1831 },
-	{ .compatible = "cirrus,cs47l24", .data = (void *)CS47L24 },
-	{},
-};
-EXPORT_SYMBOL_GPL(arizona_of_match);
 #else
 static inline int arizona_of_get_core_pdata(struct arizona *arizona)
 {
diff --git a/drivers/mfd/arizona-i2c.c b/drivers/mfd/arizona-i2c.c
index 5e83b730c4ced..3ed810e81f631 100644
--- a/drivers/mfd/arizona-i2c.c
+++ b/drivers/mfd/arizona-i2c.c
@@ -104,11 +104,23 @@ static const struct i2c_device_id arizona_i2c_id[] = {
 };
 MODULE_DEVICE_TABLE(i2c, arizona_i2c_id);
 
+#ifdef CONFIG_OF
+const struct of_device_id arizona_i2c_of_match[] = {
+	{ .compatible = "wlf,wm5102", .data = (void *)WM5102 },
+	{ .compatible = "wlf,wm5110", .data = (void *)WM5110 },
+	{ .compatible = "wlf,wm8280", .data = (void *)WM8280 },
+	{ .compatible = "wlf,wm8997", .data = (void *)WM8997 },
+	{ .compatible = "wlf,wm8998", .data = (void *)WM8998 },
+	{ .compatible = "wlf,wm1814", .data = (void *)WM1814 },
+	{},
+};
+#endif
+
 static struct i2c_driver arizona_i2c_driver = {
 	.driver = {
 		.name	= "arizona",
 		.pm	= &arizona_pm_ops,
-		.of_match_table	= of_match_ptr(arizona_of_match),
+		.of_match_table	= of_match_ptr(arizona_i2c_of_match),
 	},
 	.probe		= arizona_i2c_probe,
 	.remove		= arizona_i2c_remove,
diff --git a/drivers/mfd/arizona-spi.c b/drivers/mfd/arizona-spi.c
index aa1d6f94ae532..9fe06dda37829 100644
--- a/drivers/mfd/arizona-spi.c
+++ b/drivers/mfd/arizona-spi.c
@@ -225,11 +225,22 @@ static const struct spi_device_id arizona_spi_ids[] = {
 };
 MODULE_DEVICE_TABLE(spi, arizona_spi_ids);
 
+#ifdef CONFIG_OF
+const struct of_device_id arizona_spi_of_match[] = {
+	{ .compatible = "wlf,wm5102", .data = (void *)WM5102 },
+	{ .compatible = "wlf,wm5110", .data = (void *)WM5110 },
+	{ .compatible = "wlf,wm8280", .data = (void *)WM8280 },
+	{ .compatible = "wlf,wm1831", .data = (void *)WM1831 },
+	{ .compatible = "cirrus,cs47l24", .data = (void *)CS47L24 },
+	{},
+};
+#endif
+
 static struct spi_driver arizona_spi_driver = {
 	.driver = {
 		.name	= "arizona",
 		.pm	= &arizona_pm_ops,
-		.of_match_table	= of_match_ptr(arizona_of_match),
+		.of_match_table	= of_match_ptr(arizona_spi_of_match),
 		.acpi_match_table = ACPI_PTR(arizona_acpi_match),
 	},
 	.probe		= arizona_spi_probe,
diff --git a/drivers/mfd/arizona.h b/drivers/mfd/arizona.h
index 801cbbcd71cb5..66d6092d08515 100644
--- a/drivers/mfd/arizona.h
+++ b/drivers/mfd/arizona.h
@@ -28,8 +28,6 @@ extern const struct regmap_config wm8998_i2c_regmap;
 
 extern const struct dev_pm_ops arizona_pm_ops;
 
-extern const struct of_device_id arizona_of_match[];
-
 extern const struct regmap_irq_chip wm5102_aod;
 extern const struct regmap_irq_chip wm5102_irq;
 
-- 
2.11.0