From 457fcdad8947b158c31a0b2c0f9dfce2de37991f Mon Sep 17 00:00:00 2001
From: Yangtao Li <frank.li@vivo.com>
Date: Wed, 12 Jul 2023 14:28:46 +0800
Subject: [PATCH] serial: vt8500: Use devm_platform_get_and_ioremap_resource()

References: bsc#1214683 (PREEMPT_RT prerequisite backports)
Patch-mainline: v6.6-rc1
Git-commit: 0548688dfa3aeeefc28b1603fe9d004de119dd10

Convert platform_get_resource(), devm_ioremap_resource() to a single
call to devm_platform_get_and_ioremap_resource(), as this is exactly
what this function does.

Signed-off-by: Yangtao Li <frank.li@vivo.com>
Link: https://lore.kernel.org/r/20230712062853.11007-8-frank.li@vivo.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Signed-off-by: Mel Gorman <mgorman@suse.de>
---
 drivers/tty/serial/vt8500_serial.c | 6 +-----
 1 file changed, 1 insertion(+), 5 deletions(-)

diff --git a/drivers/tty/serial/vt8500_serial.c b/drivers/tty/serial/vt8500_serial.c
index 32433e9b3e5f..c5d5c2765119 100644
--- a/drivers/tty/serial/vt8500_serial.c
+++ b/drivers/tty/serial/vt8500_serial.c
@@ -611,10 +611,6 @@ static int vt8500_serial_probe(struct platform_device *pdev)
 	if (!flags)
 		return -EINVAL;
 
-	mmres = platform_get_resource(pdev, IORESOURCE_MEM, 0);
-	if (!mmres)
-		return -ENODEV;
-
 	irq = platform_get_irq(pdev, 0);
 	if (irq < 0)
 		return irq;
@@ -647,7 +643,7 @@ static int vt8500_serial_probe(struct platform_device *pdev)
 	if (!vt8500_port)
 		return -ENOMEM;
 
-	vt8500_port->uart.membase = devm_ioremap_resource(&pdev->dev, mmres);
+	vt8500_port->uart.membase = devm_platform_get_and_ioremap_resource(pdev, 0, &mmres);
 	if (IS_ERR(vt8500_port->uart.membase))
 		return PTR_ERR(vt8500_port->uart.membase);