From: Andy Shevchenko <andy.shevchenko@gmail.com>
To: Greg Kroah-Hartman <gregkh@linuxfoundation.org>,
linux-serial@vger.kernel.org
Cc: Andy Shevchenko <andy.shevchenko@gmail.com>
Subject: [PATCH v1 1/2] serial: max310x: Make use of device properties
Date: Wed, 7 Oct 2020 01:08:42 +0300 [thread overview]
Message-ID: <20201006220843.582459-1-andy.shevchenko@gmail.com> (raw)
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: Andy Shevchenko <andy.shevchenko@gmail.com>
---
drivers/tty/serial/max310x.c | 27 +++++++++------------------
1 file changed, 9 insertions(+), 18 deletions(-)
diff --git a/drivers/tty/serial/max310x.c b/drivers/tty/serial/max310x.c
index 21130af106bb..f25b9516109c 100644
--- a/drivers/tty/serial/max310x.c
+++ b/drivers/tty/serial/max310x.c
@@ -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, ®cfg);
@@ -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,
--
2.28.0
next reply other threads:[~2020-10-06 22:24 UTC|newest]
Thread overview: 5+ messages / expand[flat|nested] mbox.gz Atom feed top
2020-10-06 22:08 Andy Shevchenko [this message]
2020-10-06 22:08 ` [PATCH v1 2/2] serial: max310x: Use devm_clk_get_optional() to get the input clock Andy Shevchenko
2020-10-06 22:22 [PATCH v1 1/2] serial: max310x: Make use of device properties Andy Shevchenko
2020-10-07 7:32 ` Greg Kroah-Hartman
2020-10-07 8:47 ` Andy Shevchenko
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