diff mbox series

iio: accel: adxl345: Convert enum->pointer for data in match data table

Message ID 20230812133825.141581-1-biju.das.jz@bp.renesas.com (mailing list archive)
State Superseded
Delegated to: Geert Uytterhoeven
Headers show
Series iio: accel: adxl345: Convert enum->pointer for data in match data table | expand

Commit Message

Biju Das Aug. 12, 2023, 1:38 p.m. UTC 
Convert enum->pointer for data in match data table, so that
device_get_match_data() can do match against OF/ACPI/I2C tables, once i2c
bus type match support added to it.

Add struct adxl3x5_chip_info and replace enum->adxl3x5_chip_info in the
match table and simplify adxl345_probe().

Signed-off-by: Biju Das <biju.das.jz@bp.renesas.com>
---
 drivers/iio/accel/adxl345.h      |  5 +++++
 drivers/iio/accel/adxl345_core.c | 19 +++++--------------
 drivers/iio/accel/adxl345_i2c.c  | 20 +++++++++++++++-----
 drivers/iio/accel/adxl345_spi.c  | 20 +++++++++++++++-----
 4 files changed, 40 insertions(+), 24 deletions(-)

Comments

Andy Shevchenko Aug. 13, 2023, 8:15 p.m. UTC | #1 
On Sat, Aug 12, 2023 at 4:38 PM Biju Das <biju.das.jz@bp.renesas.com> wrote:
>
> Convert enum->pointer for data in match data table, so that
> device_get_match_data() can do match against OF/ACPI/I2C tables, once i2c
> bus type match support added to it.
>
> Add struct adxl3x5_chip_info and replace enum->adxl3x5_chip_info in the
> match table and simplify adxl345_probe().

...

> +       info = device_get_match_data(dev);
> +       if (info->type != ADXL345 && info->type != ADXL375)
>                 return -EINVAL;

I would rather use switch-case.
Anyway, same comments here as for the other patch: ENODEV and trailing commas.

...

> +static const struct adxl3x5_chip_info adxl345_i2c_info = {
> +       .name = "adxl345",
> +       .type = ADXL345
> +};
> +
> +static const struct adxl3x5_chip_info adxl375_i2c_info = {
> +       .name = "adxl375",
> +       .type = ADXL375
> +};

> +static const struct adxl3x5_chip_info adxl345_spi_info = {
> +       .name = "adxl345",
> +       .type = ADXL345
> +};
> +
> +static const struct adxl3x5_chip_info adxl375_spi_info = {
> +       .name = "adxl375",
> +       .type = ADXL375
> +};

Why dup?
Biju Das Aug. 14, 2023, 8:15 a.m. UTC | #2 
Hi Andy,

Thanks for the feedback.

> Subject: Re: [PATCH] iio: accel: adxl345: Convert enum->pointer for data
> in match data table
> 
> On Sat, Aug 12, 2023 at 4:38 PM Biju Das <biju.das.jz@bp.renesas.com>
> wrote:
> >
> > Convert enum->pointer for data in match data table, so that
> > device_get_match_data() can do match against OF/ACPI/I2C tables, once
> > i2c bus type match support added to it.
> >
> > Add struct adxl3x5_chip_info and replace enum->adxl3x5_chip_info in
> > the match table and simplify adxl345_probe().
> 
> ...
> 
> > +       info = device_get_match_data(dev);
> > +       if (info->type != ADXL345 && info->type != ADXL375)
> >                 return -EINVAL;
> 
> I would rather use switch-case.
OK, will use switch case.

> Anyway, same comments here as for the other patch: ENODEV and trailing
> commas.

OK. If there is no objections.

> 
> ...
> 
> > +static const struct adxl3x5_chip_info adxl345_i2c_info = {
> > +       .name = "adxl345",
> > +       .type = ADXL345
> > +};
> > +
> > +static const struct adxl3x5_chip_info adxl375_i2c_info = {
> > +       .name = "adxl375",
> > +       .type = ADXL375
> > +};
> 
> > +static const struct adxl3x5_chip_info adxl345_spi_info = {
> > +       .name = "adxl345",
> > +       .type = ADXL345
> > +};
> > +
> > +static const struct adxl3x5_chip_info adxl375_spi_info = {
> > +       .name = "adxl375",
> > +       .type = ADXL375
> > +};
> 
> Why dup?

Because it i2c and spi table. Anyway I requested Angel Iglesias 
to use unified table for bmp280_i2c() and bmp280_spi() and if it is do able, create a separate patch.

Cheers,
Biju

> 
> --
> With Best Regards,
> Andy Shevchenko
diff mbox series

Patch

diff --git a/drivers/iio/accel/adxl345.h b/drivers/iio/accel/adxl345.h
index d7e67cb08538..8df1b7f43cb9 100644
--- a/drivers/iio/accel/adxl345.h
+++ b/drivers/iio/accel/adxl345.h
@@ -13,6 +13,11 @@  enum adxl345_device_type {
 	ADXL375 = 2,
 };
 
+struct adxl3x5_chip_info {
+	const char *name;
+	unsigned int type;
+};
+
 int adxl345_core_probe(struct device *dev, struct regmap *regmap);
 
 #endif /* _ADXL345_H_ */
diff --git a/drivers/iio/accel/adxl345_core.c b/drivers/iio/accel/adxl345_core.c
index 1919e0089c11..6da457c06e27 100644
--- a/drivers/iio/accel/adxl345_core.c
+++ b/drivers/iio/accel/adxl345_core.c
@@ -222,24 +222,15 @@  static void adxl345_powerdown(void *regmap)
 
 int adxl345_core_probe(struct device *dev, struct regmap *regmap)
 {
-	enum adxl345_device_type type;
+	const struct adxl3x5_chip_info *info;
 	struct adxl345_data *data;
 	struct iio_dev *indio_dev;
-	const char *name;
 	u32 regval;
 	int ret;
 
-	type = (uintptr_t)device_get_match_data(dev);
-	switch (type) {
-	case ADXL345:
-		name = "adxl345";
-		break;
-	case ADXL375:
-		name = "adxl375";
-		break;
-	default:
+	info = device_get_match_data(dev);
+	if (info->type != ADXL345 && info->type != ADXL375)
 		return -EINVAL;
-	}
 
 	ret = regmap_read(regmap, ADXL345_REG_DEVID, &regval);
 	if (ret < 0)
@@ -255,7 +246,7 @@  int adxl345_core_probe(struct device *dev, struct regmap *regmap)
 
 	data = iio_priv(indio_dev);
 	data->regmap = regmap;
-	data->type = type;
+	data->type = info->type;
 	/* Enable full-resolution mode */
 	data->data_range = ADXL345_DATA_FORMAT_FULL_RES;
 
@@ -264,7 +255,7 @@  int adxl345_core_probe(struct device *dev, struct regmap *regmap)
 	if (ret < 0)
 		return dev_err_probe(dev, ret, "Failed to set data range\n");
 
-	indio_dev->name = name;
+	indio_dev->name = info->name;
 	indio_dev->info = &adxl345_info;
 	indio_dev->modes = INDIO_DIRECT_MODE;
 	indio_dev->channels = adxl345_channels;
diff --git a/drivers/iio/accel/adxl345_i2c.c b/drivers/iio/accel/adxl345_i2c.c
index e47d12f19602..498e04bdeef1 100644
--- a/drivers/iio/accel/adxl345_i2c.c
+++ b/drivers/iio/accel/adxl345_i2c.c
@@ -30,22 +30,32 @@  static int adxl345_i2c_probe(struct i2c_client *client)
 	return adxl345_core_probe(&client->dev, regmap);
 }
 
+static const struct adxl3x5_chip_info adxl345_i2c_info = {
+	.name = "adxl345",
+	.type = ADXL345
+};
+
+static const struct adxl3x5_chip_info adxl375_i2c_info = {
+	.name = "adxl375",
+	.type = ADXL375
+};
+
 static const struct i2c_device_id adxl345_i2c_id[] = {
-	{ "adxl345", ADXL345 },
-	{ "adxl375", ADXL375 },
+	{ "adxl345", (kernel_ulong_t)&adxl345_i2c_info },
+	{ "adxl375", (kernel_ulong_t)&adxl375_i2c_info },
 	{ }
 };
 MODULE_DEVICE_TABLE(i2c, adxl345_i2c_id);
 
 static const struct of_device_id adxl345_of_match[] = {
-	{ .compatible = "adi,adxl345", .data = (const void *)ADXL345 },
-	{ .compatible = "adi,adxl375", .data = (const void *)ADXL375 },
+	{ .compatible = "adi,adxl345", .data = &adxl345_i2c_info },
+	{ .compatible = "adi,adxl375", .data = &adxl375_i2c_info },
 	{ }
 };
 MODULE_DEVICE_TABLE(of, adxl345_of_match);
 
 static const struct acpi_device_id adxl345_acpi_match[] = {
-	{ "ADS0345", ADXL345 },
+	{ "ADS0345", (kernel_ulong_t)&adxl345_i2c_info },
 	{ }
 };
 MODULE_DEVICE_TABLE(acpi, adxl345_acpi_match);
diff --git a/drivers/iio/accel/adxl345_spi.c b/drivers/iio/accel/adxl345_spi.c
index aaade5808657..2076bb79be2a 100644
--- a/drivers/iio/accel/adxl345_spi.c
+++ b/drivers/iio/accel/adxl345_spi.c
@@ -36,22 +36,32 @@  static int adxl345_spi_probe(struct spi_device *spi)
 	return adxl345_core_probe(&spi->dev, regmap);
 }
 
+static const struct adxl3x5_chip_info adxl345_spi_info = {
+	.name = "adxl345",
+	.type = ADXL345
+};
+
+static const struct adxl3x5_chip_info adxl375_spi_info = {
+	.name = "adxl375",
+	.type = ADXL375
+};
+
 static const struct spi_device_id adxl345_spi_id[] = {
-	{ "adxl345", ADXL345 },
-	{ "adxl375", ADXL375 },
+	{ "adxl345", (kernel_ulong_t)&adxl345_spi_info },
+	{ "adxl375", (kernel_ulong_t)&adxl375_spi_info },
 	{ }
 };
 MODULE_DEVICE_TABLE(spi, adxl345_spi_id);
 
 static const struct of_device_id adxl345_of_match[] = {
-	{ .compatible = "adi,adxl345", .data = (const void *)ADXL345 },
-	{ .compatible = "adi,adxl375", .data = (const void *)ADXL375 },
+	{ .compatible = "adi,adxl345", .data = &adxl345_spi_info },
+	{ .compatible = "adi,adxl375", .data = &adxl375_spi_info },
 	{ }
 };
 MODULE_DEVICE_TABLE(of, adxl345_of_match);
 
 static const struct acpi_device_id adxl345_acpi_match[] = {
-	{ "ADS0345", ADXL345 },
+	{ "ADS0345", (kernel_ulong_t)&adxl345_spi_info },
 	{ }
 };
 MODULE_DEVICE_TABLE(acpi, adxl345_acpi_match);