[PATCH V6 2/5] tty: serial: meson: Use devm_ioremap_resource to get register mapped memory

From: Yu Tu <yu.tu@amlogic.com>
To: <linux-serial@vger.kernel.org>,
	<linux-arm-kernel@lists.infradead.org>,
	<linux-amlogic@lists.infradead.org>,
	<linux-kernel@vger.kernel.org>
Cc: Greg Kroah-Hartman <gregkh@linuxfoundation.org>,
	Jiri Slaby <jirislaby@kernel.org>,
	Neil Armstrong <narmstrong@baylibre.com>,
	Kevin Hilman <khilman@baylibre.com>,
	Jerome Brunet <jbrunet@baylibre.com>,
	Martin Blumenstingl <martin.blumenstingl@googlemail.com>,
	Yu Tu <yu.tu@amlogic.com>
Subject: [PATCH V6 2/5] tty: serial: meson: Use devm_ioremap_resource to get register mapped memory
Date: Tue, 18 Jan 2022 11:09:08 +0800	[thread overview]
Message-ID: <20220118030911.12815-3-yu.tu@amlogic.com> (raw)
In-Reply-To: <20220118030911.12815-1-yu.tu@amlogic.com>

Replace devm_request_mem_region and devm_ioremap with
devm_ioremap_resource to make the code cleaner.

Signed-off-by: Yu Tu <yu.tu@amlogic.com>
---
 drivers/tty/serial/meson_uart.c | 10 +---------
 1 file changed, 1 insertion(+), 9 deletions(-)

diff --git a/drivers/tty/serial/meson_uart.c b/drivers/tty/serial/meson_uart.c
index 6b80e41b4cc1..7570958d010c 100644
--- a/drivers/tty/serial/meson_uart.c
+++ b/drivers/tty/serial/meson_uart.c
@@ -720,15 +720,7 @@ static int meson_uart_probe(struct platform_device *pdev)
 	if (!port)
 		return -ENOMEM;
 
-	if (!devm_request_mem_region(&pdev->dev, res_mem->start,
-				     resource_size(res_mem),
-				     dev_name(&pdev->dev))) {
-		dev_err(&pdev->dev, "Memory region busy\n");
-		return -EBUSY;
-	}
-
-	port->membase = devm_ioremap(&pdev->dev, res_mem->start,
-				     resource_size(res_mem));
+	port->membase = devm_ioremap_resource(&pdev->dev, res_mem);
 	if (IS_ERR(port->membase))
 		return PTR_ERR(port->membase);
 
-- 
2.33.1

