--- /dev/null
+From 2cd00b51470a30198b048a5fca48a04db77e29cc Mon Sep 17 00:00:00 2001
+From: INAGAKI Hiroshi <musashino.open@gmail.com>
+Date: Fri, 21 May 2021 23:16:37 +0900
+Subject: [PATCH] realtek: backport irq-realtek-rtl driver from 5.12 to 5.10
+
+This patch backports "irq-realtek-rtl" driver to Kernel 5.10 from 5.12.
+"MACH_REALTEK_RTL" is used as a platform name in upstream, but "RTL838X"
+is used in OpenWrt, so update the dependency by the additional patch.
+
+Submitted-by: INAGAKI Hiroshi <musashino.open@gmail.com>
+---
+ drivers/irqchip/Makefile | 2 +-
+ 1 files changed, 1 insertion(+), 1 deletion(-)
+
+--- a/drivers/irqchip/Makefile
++++ b/drivers/irqchip/Makefile
+@@ -112,7 +112,7 @@ obj-$(CONFIG_LOONGSON_PCH_PIC) += irq-l
+ obj-$(CONFIG_LOONGSON_PCH_MSI) += irq-loongson-pch-msi.o
+ obj-$(CONFIG_MST_IRQ) += irq-mst-intc.o
+ obj-$(CONFIG_SL28CPLD_INTC) += irq-sl28cpld.o
+-obj-$(CONFIG_MACH_REALTEK_RTL) += irq-realtek-rtl.o
++obj-$(CONFIG_RTL83XX) += irq-realtek-rtl.o
+ obj-$(CONFIG_WPCM450_AIC) += irq-wpcm450-aic.o
+ obj-$(CONFIG_IRQ_IDT3243X) += irq-idt3243x.o
+ obj-$(CONFIG_APPLE_AIC) += irq-apple-aic.o