From 666e9cf2220b11ccd024cad13ad54ca71d40c5b3 Mon Sep 17 00:00:00 2001
From: Daniel Gimpelevich <daniel@gimpelevich.san-francisco.ca.us>
Date: Thu, 18 Jan 2018 03:52:12 -0800
Subject: [PATCH] kernel: add IEEE-1284 parallel port support

The kmod-lp package included both lp.ko and ppdev.ko, but ECP device
drivers may or may not require lp NOT to be loaded, needing only ppdev.
Additionally, There were no packages for any parport interface modules,
such as uss720 or parport_pc, provided here. It has not been otherwise
possible to use PC-style parport hardware for kmod-lp.

Signed-off-by: Daniel Gimpelevich <daniel@gimpelevich.san-francisco.ca.us>
---
 package/kernel/linux/modules/other.mk | 43 +++++++++++++++++++++++----
 1 file changed, 38 insertions(+), 5 deletions(-)

diff --git a/package/kernel/linux/modules/other.mk b/package/kernel/linux/modules/other.mk
index 973e4f3e26a5..94f98fffc953 100644
--- a/package/kernel/linux/modules/other.mk
+++ b/package/kernel/linux/modules/other.mk
@@ -285,18 +285,51 @@ endef
 $(eval $(call KernelPackage,gpio-pcf857x))
 
 
-define KernelPackage/lp
+define KernelPackage/ppdev
   SUBMENU:=$(OTHER_MENU)
-  TITLE:=Parallel port and line printer support
+  TITLE:=Parallel port support
   KCONFIG:= \
 	CONFIG_PARPORT \
-	CONFIG_PRINTER \
 	CONFIG_PPDEV
   FILES:= \
 	$(LINUX_DIR)/drivers/parport/parport.ko \
-	$(LINUX_DIR)/drivers/char/lp.ko \
 	$(LINUX_DIR)/drivers/char/ppdev.ko
-  AUTOLOAD:=$(call AutoLoad,50,parport lp ppdev)
+  AUTOLOAD:=$(call AutoLoad,50,parport ppdev)
+endef
+
+$(eval $(call KernelPackage,ppdev))
+
+
+define KernelPackage/parport-pc
+  SUBMENU:=$(OTHER_MENU)
+  TITLE:=Parallel port interface (PC-style) support
+  DEPENDS:=+kmod-ppdev
+  KCONFIG:= \
+	CONFIG_PARPORT_PC \
+	CONFIG_PARPORT_1284=y \
+	CONFIG_PARPORT_PC_FIFO=y \
+	CONFIG_PARPORT_PC_SUPERIO=y \
+	CONFIG_PARPORT_SERIAL=n \
+	CONFIG_PARIDE=n \
+	CONFIG_SCSI_IMM=n \
+	CONFIG_SCSI_PPA=n
+  FILES:= \
+	$(LINUX_DIR)/drivers/parport/parport_pc.ko
+  AUTOLOAD:=$(call AutoLoad,51,parport_pc)
+endef
+
+$(eval $(call KernelPackage,parport-pc))
+
+
+define KernelPackage/lp
+  SUBMENU:=$(OTHER_MENU)
+  TITLE:=Parallel port line printer device support
+  DEPENDS:=+kmod-ppdev
+  KCONFIG:= \
+	CONFIG_PRINTER
+  FILES:= \
+	$(LINUX_DIR)/drivers/char/lp.ko
+  AUTOLOAD:=$(call AutoLoad,52,lp)
 endef
 
 $(eval $(call KernelPackage,lp))
-- 
2.30.2