Commit c808fab6 authored by Andy Shevchenko's avatar Andy Shevchenko Committed by Greg Kroah-Hartman
Browse files

serial: max310x: Make use of device properties 



Device property API allows to gather device resources from different sources,
such as ACPI. Convert the drivers to unleash the power of device property API.

Signed-off-by: default avatarAndy Shevchenko <andy.shevchenko@gmail.com>
Link: https://lore.kernel.org/r/20201007084635.594991-1-andy.shevchenko@gmail.com


Signed-off-by: default avatarGreg Kroah-Hartman <gregkh@linuxfoundation.org>
parent 3650b228

drivers/tty/serial/max310x.c

+9 −18
Original line number Diff line number Diff line
@@ -15,8 +15,8 @@ 
#include <linux/device.h>

#include <linux/gpio/driver.h>

#include <linux/module.h>

#include <linux/of.h>

#include <linux/of_device.h>

#include <linux/mod_devicetable.h>

#include <linux/property.h>

#include <linux/regmap.h>

#include <linux/serial_core.h>

#include <linux/serial.h>
@@ -267,7 +267,7 @@ struct max310x_one { 
	container_of(_port, struct max310x_one, port)



struct max310x_port {

	struct max310x_devtype	*devtype;

	const struct max310x_devtype *devtype;

	struct regmap		*regmap;

	struct clk		*clk;

#ifdef CONFIG_GPIOLIB
@@ -1269,7 +1269,7 @@ static int max310x_gpio_set_config(struct gpio_chip *chip, unsigned int offset, 
}

#endif



static int max310x_probe(struct device *dev, struct max310x_devtype *devtype,

static int max310x_probe(struct device *dev, const struct max310x_devtype *devtype,

			 struct regmap *regmap, int irq)

{

	int i, ret, fmin, fmax, freq, uartclk;
@@ -1478,7 +1478,7 @@ static struct regmap_config regcfg = { 
#ifdef CONFIG_SPI_MASTER

static int max310x_spi_probe(struct spi_device *spi)

{

	struct max310x_devtype *devtype;

	const struct max310x_devtype *devtype;

	struct regmap *regmap;

	int ret;
@@ -1490,18 +1490,9 @@ static int max310x_spi_probe(struct spi_device *spi) 
	if (ret)

		return ret;



	if (spi->dev.of_node) {

		const struct of_device_id *of_id =

			of_match_device(max310x_dt_ids, &spi->dev);

		if (!of_id)

			return -ENODEV;



		devtype = (struct max310x_devtype *)of_id->data;

	} else {

		const struct spi_device_id *id_entry = spi_get_device_id(spi);



		devtype = (struct max310x_devtype *)id_entry->driver_data;

	}

	devtype = device_get_match_data(&spi->dev);

	if (!devtype)

		devtype = (struct max310x_devtype *)spi_get_device_id(spi)->driver_data;



	regcfg.max_register = devtype->nr * 0x20 - 1;

	regmap = devm_regmap_init_spi(spi, &regcfg);
@@ -1526,7 +1517,7 @@ MODULE_DEVICE_TABLE(spi, max310x_id_table); 
static struct spi_driver max310x_spi_driver = {

	.driver = {

		.name		= MAX310X_NAME,

		.of_match_table	= of_match_ptr(max310x_dt_ids),

		.of_match_table	= max310x_dt_ids,

		.pm		= &max310x_pm_ops,

	},

	.probe		= max310x_spi_probe,