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| author | Philippe Langlais <philippe.langlais@linaro.org> | 2011-05-11 10:04:48 +0200 |
|---|---|---|
| committer | Ulf Hansson <ulf.hansson@stericsson.com> | 2011-09-19 15:15:14 +0200 |
| commit | 68aabb650db6e46289db7915f69714c358d4404d (patch) | |
| tree | 3a9fd9133ec9285226c2325c4aed784f1ef4fb2d /arch/arm/mach-ux500/board-mop500-mcde.c | |
| parent | 290312d7d238d46dfd098f684c9c4231c011f231 (diff) | |
video: mcde: Add tripple buffer support
This patch adds tripple buffer support to the mcde
driver. Useful for video mode devices (e.g. HDMI)
where a missed v-sync leads to half frame rate
(the client has to wait for the next v-sync).
Tripple buffering solves this problem since there
are two back buffers the client can use.
Tripple buffering for HDMI is activated in
menuconfig by enabling:
System Type -> Display selection -> Enable tripple
buffer for HDMI display
ST-Ericsson ID: 335004
ST-Ericsson Linux next: Not tested, ER 282779
ST-Ericsson FOSS-OUT ID: Trivial
Change-Id: Ice1f936a8a00e2fbc8fdf7e8c6621c539efe0ac4
Signed-off-by: Jimmy Rubin <jimmy.rubin@stericsson.com>
Reviewed-on: http://gerrit.lud.stericsson.com/gerrit/21839
Reviewed-by: QATOOLS
Reviewed-by: Per PERSSON <per.xb.persson@stericsson.com>
Reviewed-by: QATEST
Reviewed-by: Marcel TUNNISSEN <marcel.tuennissen@stericsson.com>
Conflicts:
arch/arm/configs/u8500_defconfig
drivers/misc/dispdev/dispdev.c
Diffstat (limited to 'arch/arm/mach-ux500/board-mop500-mcde.c')
| -rw-r--r-- | arch/arm/mach-ux500/board-mop500-mcde.c | 6 |
1 files changed, 6 insertions, 0 deletions
diff --git a/arch/arm/mach-ux500/board-mop500-mcde.c b/arch/arm/mach-ux500/board-mop500-mcde.c index bc7d596d88f..edf603dd0ce 100644 --- a/arch/arm/mach-ux500/board-mop500-mcde.c +++ b/arch/arm/mach-ux500/board-mop500-mcde.c @@ -462,6 +462,7 @@ static int display_postregistered_callback(struct notifier_block *nb, virtual_width = width; virtual_height = height * 2; + #ifdef CONFIG_DISPLAY_GENERIC_DSI_PRIMARY_AUTO_SYNC if (ddev->id == PRIMARY_DISPLAY_ID) virtual_height = height; @@ -472,6 +473,11 @@ static int display_postregistered_callback(struct notifier_block *nb, virtual_height = height; #endif +#ifdef CONFIG_DISPLAY_AV8100_TRIPPLE_BUFFER + if (ddev->id == TERTIARY_DISPLAY_ID) + virtual_height = height * 3; +#endif + if (ddev->id == TERTIARY_DISPLAY_ID) { #ifdef CONFIG_MCDE_DISPLAY_HDMI_FB_AUTO_CREATE hdmi_fb_onoff(ddev, 1, 0, 0); |