[PATCH v2] tty: serial: mvebu-uart: use device_get_match_data()

[PATCH v2] tty: serial: mvebu-uart: use device_get_match_data()

[Bramwel Barack]

Modernize the driver by replacing the legacy of_match_device() call
with the modern device_get_match_data() helper API. This cleans up
the boilerplate code by extracting the match driver data configuration
directly.

Consequently, drop the explicit inclusions of <linux/of_device.h> and
<linux/of_platform.h> as they are no longer required by the driver.
This allows us to also remove a now-redundant forward declaration and
 drop the problematic of_match_ptr() macro wrapper.

Signed-off-by: Bramwel Barack <bramwelbarack89@gmail.com>
---

Changes in v2:
  - Dropped the redundant forward declaration of mvebu_uart_of_match.
  - Removed the of_match_ptr() macro wrapper from the platform driver structure
    to prevent build warnings when compiling with CONFIG_OF disabled.

 drivers/tty/serial/mvebu-uart.c | 9 ++-------
 1 file changed, 2 insertions(+), 7 deletions(-)

diff --git a/drivers/tty/serial/mvebu-uart.c b/drivers/tty/serial/mvebu-uart.c
index 33ea496c93b2..1e980dd26465 100644
--- a/drivers/tty/serial/mvebu-uart.c
+++ b/drivers/tty/serial/mvebu-uart.c
@@ -18,9 +18,7 @@
 #include <linux/math64.h>
 #include <linux/of.h>
 #include <linux/of_address.h>
-#include <linux/of_device.h>
 #include <linux/of_irq.h>
-#include <linux/of_platform.h>
 #include <linux/platform_device.h>
 #include <linux/serial.h>
 #include <linux/serial_core.h>
@@ -859,15 +857,12 @@ static const struct dev_pm_ops mvebu_uart_pm_ops = {
 };
 #endif /* CONFIG_PM */
 
-static const struct of_device_id mvebu_uart_of_match[];
 
 /* Counter to keep track of each UART port id when not using CONFIG_OF */
 static int uart_num_counter;
 
 static int mvebu_uart_probe(struct platform_device *pdev)
 {
-	const struct of_device_id *match = of_match_device(mvebu_uart_of_match,
-							   &pdev->dev);
 	struct uart_port *port;
 	struct mvebu_uart *mvuart;
 	struct resource *reg;
@@ -919,7 +914,7 @@ static int mvebu_uart_probe(struct platform_device *pdev)
 		return -ENOMEM;
 
 	/* Get controller data depending on the compatible string */
-	mvuart->data = (struct mvebu_uart_driver_data *)match->data;
+	mvuart->data = (struct mvebu_uart_driver_data *)device_get_match_data(&pdev->dev);
 	mvuart->port = port;
 
 	port->private_data = mvuart;
@@ -1016,7 +1011,7 @@ static struct platform_driver mvebu_uart_platform_driver = {
 	.probe	= mvebu_uart_probe,
 	.driver	= {
 		.name  = "mvebu-uart",
-		.of_match_table = of_match_ptr(mvebu_uart_of_match),
+		.of_match_table = mvebu_uart_of_match,
 		.suppress_bind_attrs = true,
 #if defined(CONFIG_PM)
 		.pm	= &mvebu_uart_pm_ops,
-- 
2.56.0