aboutsummaryrefslogtreecommitdiff
path: root/drivers/gpu/drm/radeon/rs690.c
diff options
context:
space:
mode:
authorMark Brown <[email protected]>2016-02-09 18:20:39 +0000
committerMark Brown <[email protected]>2016-02-09 18:20:39 +0000
commitfcdcc79628a1919bde9acf239e364f65bab6327c (patch)
tree5499be387cf3028c90ac083b1cf866ebed7bf7e0 /drivers/gpu/drm/radeon/rs690.c
parent7a8d44bc89e5cddcd5c0704a11a90484d36ba6ba (diff)
parenta0a90718f18264dc904d34a580f332006f5561e9 (diff)
Merge branch 'topic/acpi' of git://git.kernel.org/pub/scm/linux/kernel/git/broonie/spi into spi-pxa2xx
Diffstat (limited to 'drivers/gpu/drm/radeon/rs690.c')
-rw-r--r--drivers/gpu/drm/radeon/rs690.c10
1 files changed, 10 insertions, 0 deletions
diff --git a/drivers/gpu/drm/radeon/rs690.c b/drivers/gpu/drm/radeon/rs690.c
index 516ca27cfa12..6bc44c24e837 100644
--- a/drivers/gpu/drm/radeon/rs690.c
+++ b/drivers/gpu/drm/radeon/rs690.c
@@ -207,6 +207,9 @@ void rs690_line_buffer_adjust(struct radeon_device *rdev,
{
u32 tmp;
+ /* Guess line buffer size to be 8192 pixels */
+ u32 lb_size = 8192;
+
/*
* Line Buffer Setup
* There is a single line buffer shared by both display controllers.
@@ -243,6 +246,13 @@ void rs690_line_buffer_adjust(struct radeon_device *rdev,
tmp |= V_006520_DC_LB_MEMORY_SPLIT_D1_1Q_D2_3Q;
}
WREG32(R_006520_DC_LB_MEMORY_SPLIT, tmp);
+
+ /* Save number of lines the linebuffer leads before the scanout */
+ if (mode1)
+ rdev->mode_info.crtcs[0]->lb_vblank_lead_lines = DIV_ROUND_UP(lb_size, mode1->crtc_hdisplay);
+
+ if (mode2)
+ rdev->mode_info.crtcs[1]->lb_vblank_lead_lines = DIV_ROUND_UP(lb_size, mode2->crtc_hdisplay);
}
struct rs690_watermark {