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Diffstat (limited to 'target/linux/bcm27xx/patches-5.10/950-0696-ydrm-vc4-fkms-Fix-margin-calculations-for-the-right-.patch')
-rw-r--r--target/linux/bcm27xx/patches-5.10/950-0696-ydrm-vc4-fkms-Fix-margin-calculations-for-the-right-.patch38
1 files changed, 38 insertions, 0 deletions
diff --git a/target/linux/bcm27xx/patches-5.10/950-0696-ydrm-vc4-fkms-Fix-margin-calculations-for-the-right-.patch b/target/linux/bcm27xx/patches-5.10/950-0696-ydrm-vc4-fkms-Fix-margin-calculations-for-the-right-.patch
new file mode 100644
index 0000000000..9454b54b49
--- /dev/null
+++ b/target/linux/bcm27xx/patches-5.10/950-0696-ydrm-vc4-fkms-Fix-margin-calculations-for-the-right-.patch
@@ -0,0 +1,38 @@
+From e0aaa1acd1f33cc60e2b5c43cf6aac63bf3bbbc9 Mon Sep 17 00:00:00 2001
+From: Dave Stevenson <dave.stevenson@raspberrypi.com>
+Date: Mon, 12 Jul 2021 13:06:07 +0100
+Subject: [PATCH] ydrm/vc4: fkms: Fix margin calculations for the
+ right/bottom edges
+
+The calculations clipped the right/bottom edge of the clipped
+range based on the left/top margins.
+
+https://github.com/raspberrypi/linux/issues/4447
+
+Signed-off-by: Dave Stevenson <dave.stevenson@raspberrypi.com>
+---
+ drivers/gpu/drm/vc4/vc4_firmware_kms.c | 8 ++++----
+ 1 file changed, 4 insertions(+), 4 deletions(-)
+
+--- a/drivers/gpu/drm/vc4/vc4_firmware_kms.c
++++ b/drivers/gpu/drm/vc4/vc4_firmware_kms.c
+@@ -458,15 +458,15 @@ static int vc4_fkms_margins_adj(struct d
+ plane->dst_x = DIV_ROUND_CLOSEST(plane->dst_x * adjhdisplay,
+ (int)crtc_state->mode.hdisplay);
+ plane->dst_x += left;
+- if (plane->dst_x > (int)(crtc_state->mode.hdisplay - left))
+- plane->dst_x = crtc_state->mode.hdisplay - left;
++ if (plane->dst_x > (int)(crtc_state->mode.hdisplay - right))
++ plane->dst_x = crtc_state->mode.hdisplay - right;
+
+ adjvdisplay = crtc_state->mode.vdisplay - (top + bottom);
+ plane->dst_y = DIV_ROUND_CLOSEST(plane->dst_y * adjvdisplay,
+ (int)crtc_state->mode.vdisplay);
+ plane->dst_y += top;
+- if (plane->dst_y > (int)(crtc_state->mode.vdisplay - top))
+- plane->dst_y = crtc_state->mode.vdisplay - top;
++ if (plane->dst_y > (int)(crtc_state->mode.vdisplay - bottom))
++ plane->dst_y = crtc_state->mode.vdisplay - bottom;
+
+ plane->dst_w = DIV_ROUND_CLOSEST(plane->dst_w * adjhdisplay,
+ crtc_state->mode.hdisplay);