From 08f87f769b595151be1afeff53e144f543faa614 Mon Sep 17 00:00:00 2001
From: hc <hc@nodka.com>
Date: Wed, 06 Dec 2023 09:51:13 +0000
Subject: [PATCH] add dts config
---
kernel/drivers/tty/serial/8250/8250_em.c | 18 +++++++++++-------
1 files changed, 11 insertions(+), 7 deletions(-)
diff --git a/kernel/drivers/tty/serial/8250/8250_em.c b/kernel/drivers/tty/serial/8250/8250_em.c
index 2a76e22..f8e9999 100644
--- a/kernel/drivers/tty/serial/8250/8250_em.c
+++ b/kernel/drivers/tty/serial/8250/8250_em.c
@@ -39,7 +39,7 @@
break;
case UART_IER: /* IER @ 0x04 */
value &= 0x0f; /* only 4 valid bits - not Xscale */
- /* fall-through */
+ fallthrough;
case UART_DLL_EM: /* DLL @ 0x24 (+9) */
case UART_DLM_EM: /* DLM @ 0x28 (+9) */
writel(value, p->membase + (offset << 2));
@@ -78,14 +78,18 @@
static int serial8250_em_probe(struct platform_device *pdev)
{
- struct resource *regs = platform_get_resource(pdev, IORESOURCE_MEM, 0);
- struct resource *irq = platform_get_resource(pdev, IORESOURCE_IRQ, 0);
struct serial8250_em_priv *priv;
struct uart_8250_port up;
- int ret;
+ struct resource *regs;
+ int irq, ret;
- if (!regs || !irq) {
- dev_err(&pdev->dev, "missing registers or irq\n");
+ irq = platform_get_irq(pdev, 0);
+ if (irq < 0)
+ return irq;
+
+ regs = platform_get_resource(pdev, IORESOURCE_MEM, 0);
+ if (!regs) {
+ dev_err(&pdev->dev, "missing registers\n");
return -EINVAL;
}
@@ -101,7 +105,7 @@
memset(&up, 0, sizeof(up));
up.port.mapbase = regs->start;
- up.port.irq = irq->start;
+ up.port.irq = irq;
up.port.type = PORT_UNKNOWN;
up.port.flags = UPF_BOOT_AUTOCONF | UPF_FIXED_PORT | UPF_IOREMAP;
up.port.dev = &pdev->dev;
--
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