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Diffstat (limited to 'target/linux/brcm2708/patches-4.4/0288-drm-vc4-Fix-setting-of-vertical-timings-in-the-CRTC.patch')
-rw-r--r--target/linux/brcm2708/patches-4.4/0288-drm-vc4-Fix-setting-of-vertical-timings-in-the-CRTC.patch34
1 files changed, 34 insertions, 0 deletions
diff --git a/target/linux/brcm2708/patches-4.4/0288-drm-vc4-Fix-setting-of-vertical-timings-in-the-CRTC.patch b/target/linux/brcm2708/patches-4.4/0288-drm-vc4-Fix-setting-of-vertical-timings-in-the-CRTC.patch
new file mode 100644
index 0000000000..4542ac4b6d
--- /dev/null
+++ b/target/linux/brcm2708/patches-4.4/0288-drm-vc4-Fix-setting-of-vertical-timings-in-the-CRTC.patch
@@ -0,0 +1,34 @@
+From aaf3c3ab336f0ff54be5b7eb4de5adca3cd2c05a Mon Sep 17 00:00:00 2001
+From: Eric Anholt <eric@anholt.net>
+Date: Mon, 15 Feb 2016 17:31:41 -0800
+Subject: [PATCH 288/423] drm/vc4: Fix setting of vertical timings in the CRTC.
+
+It looks like when I went to add the interlaced bits, I just took the
+existing PV_VERT* block and indented it, instead of copy and pasting
+it first. Without this, changing resolution never worked.
+
+Signed-off-by: Eric Anholt <eric@anholt.net>
+(cherry picked from commit a7c5047d1ce178dd2b1fa577fc8909ad663d56d5)
+---
+ drivers/gpu/drm/vc4/vc4_crtc.c | 10 ++++++++++
+ 1 file changed, 10 insertions(+)
+
+--- a/drivers/gpu/drm/vc4/vc4_crtc.c
++++ b/drivers/gpu/drm/vc4/vc4_crtc.c
+@@ -217,6 +217,16 @@ static void vc4_crtc_mode_set_nofb(struc
+ PV_HORZB_HFP) |
+ VC4_SET_FIELD(mode->hdisplay, PV_HORZB_HACTIVE));
+
++ CRTC_WRITE(PV_VERTA,
++ VC4_SET_FIELD(mode->vtotal - mode->vsync_end,
++ PV_VERTA_VBP) |
++ VC4_SET_FIELD(mode->vsync_end - mode->vsync_start,
++ PV_VERTA_VSYNC));
++ CRTC_WRITE(PV_VERTB,
++ VC4_SET_FIELD(mode->vsync_start - mode->vdisplay,
++ PV_VERTB_VFP) |
++ VC4_SET_FIELD(vactive, PV_VERTB_VACTIVE));
++
+ if (interlace) {
+ CRTC_WRITE(PV_VERTA_EVEN,
+ VC4_SET_FIELD(mode->vtotal - mode->vsync_end - 1,