From 6cc7ba9ed43106946aa9aa868302aa2faf1d17be Mon Sep 17 00:00:00 2001 From: Wolfgang Denk Date: Fri, 15 May 2009 10:07:43 +0200 Subject: video: Add an option to skip video initialization This patch adds an option to skip the video initialization on for all video drivers. This is needed for the CPCI750 which can be built as CPCI host and adapter/target board. And the adapter board can't access the video cards located on the CompactPCI bus. Signed-off-by: Stefan Roese Cc: Anatolij Gustschin Rebased against simplifying patch. Signed-off-by: Wolfgang Denk --- drivers/video/cfb_console.c | 15 +++++++++++++++ 1 file changed, 15 insertions(+) (limited to 'drivers/video') diff --git a/drivers/video/cfb_console.c b/drivers/video/cfb_console.c index 409d4b7d1c..bcafb27a7a 100644 --- a/drivers/video/cfb_console.c +++ b/drivers/video/cfb_console.c @@ -1330,11 +1330,26 @@ static int video_init (void) /*****************************************************************************/ +/* + * Implement a weak default function for boards that optionally + * need to skip the video initialization. + */ +int __board_video_skip(void) +{ + /* As default, don't skip test */ + return 0; +} +int board_video_skip(void) __attribute__((weak, alias("__board_video_skip"))); + int drv_video_init (void) { int skip_dev_init; device_t console_dev; + /* Check if video initialization should be skipped */ + if (board_video_skip()) + return 0; + /* Init video chip - returns with framebuffer cleared */ skip_dev_init = (video_init () == -1); -- cgit v1.2.1