linux-kernel - [PATCH] nios2: add screen

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Date:   Wed,  9 Nov 2016 23:09:37 +0000
From:   Sudip Mukherjee <sudipm.mukherjee@...il.com>
To:     Ley Foon Tan <lftan@...era.com>
Cc:     linux-kernel@...r.kernel.org, nios2-dev@...ts.rocketboards.org,
        Sudip Mukherjee <sudipm.mukherjee@...il.com>
Subject: [PATCH] nios2: add screen_info

The build of nios2 was failing with the error:
drivers/built-in.o: In function `vgacon_switch':
vgacon.c:(.text+0x12174): undefined reference to `screen_info'
vgacon.c:(.text+0x1217c): undefined reference to `screen_info'
drivers/built-in.o: In function `vgacon_resize':
vgacon.c:(.text+0x123f4): undefined reference to `screen_info'
vgacon.c:(.text+0x123f8): undefined reference to `screen_info'
drivers/built-in.o: In function `vgacon_save_screen':
vgacon.c:(.text+0x12528): undefined reference to `screen_info'

Lets define a screen_info which can work as the vga console.

Signed-off-by: Sudip Mukherjee <sudip.mukherjee@...ethink.co.uk>
---

Note: Not tested on hardware. Values of screen_info taken from m32r.

build log is at:
https://travis-ci.org/sudipm-mukherjee/parport/jobs/174408433

 arch/nios2/kernel/setup.c | 10 ++++++++++
 1 file changed, 10 insertions(+)

diff --git a/arch/nios2/kernel/setup.c b/arch/nios2/kernel/setup.c
index a4ff86d..0c1cd9d4 100644
--- a/arch/nios2/kernel/setup.c
+++ b/arch/nios2/kernel/setup.c
@@ -23,6 +23,7 @@
 #include <asm/sections.h>
 #include <asm/setup.h>
 #include <asm/cpuinfo.h>
+#include <linux/screen_info.h>
 
 unsigned long memory_start;
 EXPORT_SYMBOL(memory_start);
@@ -36,6 +37,15 @@
 					0, 0, 0, 0, 0, 0,
 					0};
 
+#if defined(CONFIG_VGA_CONSOLE)
+struct screen_info screen_info = {
+	.orig_video_lines      = 25,
+	.orig_video_cols       = 80,
+	.orig_video_isVGA      = 1,
+	.orig_video_points     = 8
+};
+#endif
+
 /* Copy a short hook instruction sequence to the exception address */
 static inline void copy_exception_handler(unsigned int addr)
 {
-- 
1.9.1