openwrtv4/target/linux/brcm63xx/patches-4.4/000-4.8-11-serial-bcm63xx_uart-use-correct-alias-naming.patch
Jonas Gorski aba4e29ead brcm63xx: register serial through device tree
Register serial consoles through device tree instead of through board
data.

Signed-off-by: Jonas Gorski <jonas.gorski@gmail.com>
2017-12-16 12:57:05 +01:00

37 lines
1.4 KiB
Diff

From a59388668d0ce19dadea909e09f4eb905a27b1ce Mon Sep 17 00:00:00 2001
From: Jonas Gorski <jogo@openwrt.org>
Date: Wed, 8 Jun 2016 12:08:43 +0200
Subject: [PATCH] serial/bcm63xx_uart: use correct alias naming
The bcm63xx_uart driver uses the of alias for determing its id. Recent
changes in dts files changed the expected 'uartX' to the recommended
'serialX', breaking serial output. Fix this by checking for a 'serialX'
alias as well.
Fixes: e3b992d028f8 ("MIPS: BMIPS: Improve BCM6328 device tree")
Fixes: 2d52ee82b475 ("MIPS: BMIPS: Improve BCM6368 device tree")
Fixes: 7537d273e2f3 ("MIPS: BMIPS: Add device tree example for BCM6358")
Signed-off-by: Jonas Gorski <jogo@openwrt.org>
Acked-by: Florian Fainelli <f.fainelli@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
drivers/tty/serial/bcm63xx_uart.c | 8 ++++++--
1 file changed, 6 insertions(+), 2 deletions(-)
--- a/drivers/tty/serial/bcm63xx_uart.c
+++ b/drivers/tty/serial/bcm63xx_uart.c
@@ -813,8 +813,12 @@ static int bcm_uart_probe(struct platfor
struct clk *clk;
int ret;
- if (pdev->dev.of_node)
- pdev->id = of_alias_get_id(pdev->dev.of_node, "uart");
+ if (pdev->dev.of_node) {
+ pdev->id = of_alias_get_id(pdev->dev.of_node, "serial");
+
+ if (pdev->id < 0)
+ pdev->id = of_alias_get_id(pdev->dev.of_node, "uart");
+ }
if (pdev->id < 0 || pdev->id >= BCM63XX_NR_UARTS)
return -EINVAL;