add r8169 read mac form eeprom

hc

2024-02-19 1c055e55a242a33e574e48be530e06770a210dcd

 kernel/drivers/tty/serial/owl-uart.c
..
..
@@ -427,7 +427,7 @@
427
427
 		return -EBUSY;
428
428
 
429
429
 	if (port->flags & UPF_IOREMAP) {
430
-		port->membase = devm_ioremap_nocache(port->dev, port->mapbase,
430
+		port->membase = devm_ioremap(port->dev, port->mapbase,
431
431
 				resource_size(res));
432
432
 		if (!port->membase)
433
433
 			return -EBUSY;
..
..
@@ -662,10 +662,8 @@
662
662
 	}
663
663
 
664
664
 	irq = platform_get_irq(pdev, 0);
665
-	if (irq < 0) {
666
-		dev_err(&pdev->dev, "could not get irq\n");
665
+	if (irq < 0)
667
666
 		return irq;
668
-	}
669
667
 
670
668
 	if (owl_uart_ports[pdev->id]) {
671
669
 		dev_err(&pdev->dev, "port %d already allocated\n", pdev->id);
..
..
@@ -682,6 +680,12 @@
682
680
 		return PTR_ERR(owl_port->clk);
683
681
 	}
684
682
 
683
+	ret = clk_prepare_enable(owl_port->clk);
684
+	if (ret) {
685
+		dev_err(&pdev->dev, "could not enable clk\n");
686
+		return ret;
687
+	}
688
+
685
689
 	owl_port->port.dev = &pdev->dev;
686
690
 	owl_port->port.line = pdev->id;
687
691
 	owl_port->port.type = PORT_OWL;
..
..
@@ -691,6 +695,7 @@
691
695
 	owl_port->port.uartclk = clk_get_rate(owl_port->clk);
692
696
 	if (owl_port->port.uartclk == 0) {
693
697
 		dev_err(&pdev->dev, "clock rate is zero\n");
698
+		clk_disable_unprepare(owl_port->clk);
694
699
 		return -EINVAL;
695
700
 	}
696
701
 	owl_port->port.flags = UPF_BOOT_AUTOCONF | UPF_IOREMAP | UPF_LOW_LATENCY;
..
..
@@ -714,6 +719,7 @@
714
719
 
715
720
 	uart_remove_one_port(&owl_uart_driver, &owl_port->port);
716
721
 	owl_uart_ports[pdev->id] = NULL;
722
+	clk_disable_unprepare(owl_port->clk);
717
723
 
718
724
 	return 0;
719
725
 }