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openwrt22.03.2: fix rs485 patch

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This commit is contained in:
lincolnzh 2022-11-11 15:39:54 +08:00
parent cfc0c9f994
commit 67801bb8e8
1 changed files with 17 additions and 17 deletions
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34
patches-22.03.2/0016-gl-x300b-add-rs485-support.patch
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@ -1,23 +1,23 @@
From 8e9681d3398013a4a40a20691e33881cc3a734b6 Mon Sep 17 00:00:00 2001
From acfe10d9101cbdb0d07839b46c4c11bdceb56f07 Mon Sep 17 00:00:00 2001
From: lincolnzh <hongjian.zhang@gl-inet.com>
Date: Sat, 5 Nov 2022 16:26:03 +0800
Subject: [PATCH] gl-x300b:add rs485 support
Date: Fri, 11 Nov 2022 15:35:43 +0800
Subject: [PATCH] fix glinet rs485 auto txrx
---
.../821-fix-glinet-rs485-auto-txrx.patch | 78 +++++++++++++++++++
1 file changed, 78 insertions(+)
create mode 100755 target/linux/ath79/patches-5.10/821-fix-glinet-rs485-auto-txrx.patch
create mode 100644 target/linux/ath79/patches-5.10/821-fix-glinet-rs485-auto-txrx.patch
diff --git a/target/linux/ath79/patches-5.10/821-fix-glinet-rs485-auto-txrx.patch b/target/linux/ath79/patches-5.10/821-fix-glinet-rs485-auto-txrx.patch
new file mode 100755
index 0000000000..1250d603d1
new file mode 100644
index 0000000000..ffbc50138e
--- /dev/null
+++ b/target/linux/ath79/patches-5.10/821-fix-glinet-rs485-auto-txrx.patch
@@ -0,0 +1,78 @@
+Index: b/drivers/tty/serial/8250/8250.h
+===================================================================
+--- a/drivers/tty/serial/8250/8250.h 2022-09-28 17:10:41.000000000 +0800
++++ b/drivers/tty/serial/8250/8250.h 2022-11-01 16:19:35.071881661 +0800
+--- a/drivers/tty/serial/8250/8250.h 2022-11-11 15:32:57.058347175 +0800
++++ b/drivers/tty/serial/8250/8250.h 2022-11-11 15:32:57.054347212 +0800
+@@ -13,6 +13,8 @@
+
+ #include "../serial_mctrl_gpio.h"
@ -29,8 +29,8 @@ index 0000000000..1250d603d1
+ int (*rx_dma)(struct uart_8250_port *p);
+Index: b/drivers/tty/serial/8250/8250_of.c
+===================================================================
+--- a/drivers/tty/serial/8250/8250_of.c 2022-09-28 17:10:41.000000000 +0800
++++ b/drivers/tty/serial/8250/8250_of.c 2022-11-01 16:22:38.013543531 +0800
+--- a/drivers/tty/serial/8250/8250_of.c 2022-11-11 15:32:57.058347175 +0800
++++ b/drivers/tty/serial/8250/8250_of.c 2022-11-11 15:32:57.054347212 +0800
+@@ -193,6 +193,7 @@ err_pmruntime:
+ /*
+ * Try to register a serial port
@ -51,8 +51,8 @@ index 0000000000..1250d603d1
+ if (ret < 0)
+Index: b/drivers/tty/serial/8250/8250_port.c
+===================================================================
+--- a/drivers/tty/serial/8250/8250_port.c 2022-09-28 17:10:41.000000000 +0800
++++ b/drivers/tty/serial/8250/8250_port.c 2022-11-01 16:27:40.125685174 +0800
+--- a/drivers/tty/serial/8250/8250_port.c 2022-11-11 15:32:57.058347175 +0800
++++ b/drivers/tty/serial/8250/8250_port.c 2022-11-11 15:34:05.781713932 +0800
+@@ -31,6 +31,7 @@
+ #include <linux/uaccess.h>
+ #include <linux/pm_runtime.h>
@ -81,17 +81,17 @@ index 0000000000..1250d603d1
+ }
+
+ static inline void __stop_tx(struct uart_8250_port *p)
+@@ -1546,6 +1555,10 @@ static void serial8250_stop_tx(struct ua
+
+ static inline void __start_tx(struct uart_port *port)
+@@ -1548,6 +1557,10 @@ static inline void __start_tx(struct uar
+ {
+ struct uart_8250_port *up = up_to_u8250p(port);
+
++ if(0xff != rs485txen_gpio){
++ gpiod_set_value(gpio_to_desc(rs485txen_gpio),1);
++ }
++
+ struct uart_8250_port *up = up_to_u8250p(port);
+
+ if (up->dma && !up->dma->tx_dma(up))
+ return;
+
--
2.17.1