diff options
author | Jong Kim <jongk@nvidia.com> | 2012-12-12 16:20:22 -0800 |
---|---|---|
committer | Winnie Hsu <whsu@nvidia.com> | 2012-12-17 12:30:38 -0800 |
commit | c1e028a7d3f2c2a5cda48a038053898458e7198c (patch) | |
tree | de933f63109e8f7cba2c58213b7497cf288e87af /arch/arm/mach-tegra/board-cardhu-panel.c | |
parent | bf5e8d0816d9b92219813f303f882f2c07e7230a (diff) |
video: tegra: clear fb2 unspecified by bootloader
Clear framebuffer2 if and only if framebuffer2 is not specified by the
bootloader. If the bootloader framebuffer2 is specified, then copy the
contents to kernel framebuffer2.
bug 1175957
Change-Id: I4ac4432c1dac6a6c634ab3e6ae31628f9c64ddb4
Signed-off-by: Jong Kim <jongk@nvidia.com>
Reviewed-on: http://git-master/r/170663
Reviewed-by: Automatic_Commit_Validation_User
Reviewed-by: Jon Mayo <jmayo@nvidia.com>
GVS: Gerrit_Virtual_Submit
Reviewed-by: Winnie Hsu <whsu@nvidia.com>
Diffstat (limited to 'arch/arm/mach-tegra/board-cardhu-panel.c')
-rw-r--r-- | arch/arm/mach-tegra/board-cardhu-panel.c | 13 |
1 files changed, 10 insertions, 3 deletions
diff --git a/arch/arm/mach-tegra/board-cardhu-panel.c b/arch/arm/mach-tegra/board-cardhu-panel.c index d7101af55712..bbd6d4aaac37 100644 --- a/arch/arm/mach-tegra/board-cardhu-panel.c +++ b/arch/arm/mach-tegra/board-cardhu-panel.c @@ -1444,9 +1444,16 @@ skip_lvds: res->start = tegra_fb2_start; res->end = tegra_fb2_start + tegra_fb2_size - 1; - /* Copy the bootloader fb to the fb2. */ - tegra_move_framebuffer(tegra_fb2_start, tegra_bootloader_fb_start, - min(tegra_fb2_size, tegra_bootloader_fb_size)); + /* + * If the bootloader fb2 is valid, copy it to the fb2, or else + * clear fb2 to avoid garbage on dispaly2. + */ + if (tegra_bootloader_fb2_size) + tegra_move_framebuffer(tegra_fb2_start, + tegra_bootloader_fb2_start, + min(tegra_fb2_size, tegra_bootloader_fb2_size)); + else + tegra_clear_framebuffer(tegra_fb2_start, tegra_fb2_size); if (!err) err = nvhost_device_register(&cardhu_disp2_device); |