diff options
Diffstat (limited to 'target/linux/brcm2708/patches-4.4/0515-drm-vc4-Disallow-interlaced-modes-on-DPI.patch')
| -rw-r--r-- | target/linux/brcm2708/patches-4.4/0515-drm-vc4-Disallow-interlaced-modes-on-DPI.patch | 37 |
1 files changed, 37 insertions, 0 deletions
diff --git a/target/linux/brcm2708/patches-4.4/0515-drm-vc4-Disallow-interlaced-modes-on-DPI.patch b/target/linux/brcm2708/patches-4.4/0515-drm-vc4-Disallow-interlaced-modes-on-DPI.patch new file mode 100644 index 0000000000..45ae37fee5 --- /dev/null +++ b/target/linux/brcm2708/patches-4.4/0515-drm-vc4-Disallow-interlaced-modes-on-DPI.patch @@ -0,0 +1,37 @@ +From 069acde1ae77a0807062df0b009a51809cb3aa2a Mon Sep 17 00:00:00 2001 +From: Mario Kleiner <mario.kleiner.de@gmail.com> +Date: Tue, 19 Jul 2016 20:58:57 +0200 +Subject: [PATCH] drm/vc4: Disallow interlaced modes on DPI. + +We already don't expose such modes to userspace, but make +sure userspace can't sneak some interlaced mode in. + +Signed-off-by: Mario Kleiner <mario.kleiner.de@gmail.com> +Signed-off-by: Eric Anholt <eric@anholt.net> +--- + drivers/gpu/drm/vc4/vc4_dpi.c | 11 +++++++++++ + 1 file changed, 11 insertions(+) + +--- a/drivers/gpu/drm/vc4/vc4_dpi.c ++++ b/drivers/gpu/drm/vc4/vc4_dpi.c +@@ -349,9 +349,20 @@ static void vc4_dpi_encoder_enable(struc + } + } + ++static bool vc4_dpi_encoder_mode_fixup(struct drm_encoder *encoder, ++ const struct drm_display_mode *mode, ++ struct drm_display_mode *adjusted_mode) ++{ ++ if (adjusted_mode->flags & DRM_MODE_FLAG_INTERLACE) ++ return false; ++ ++ return true; ++} ++ + static const struct drm_encoder_helper_funcs vc4_dpi_encoder_helper_funcs = { + .disable = vc4_dpi_encoder_disable, + .enable = vc4_dpi_encoder_enable, ++ .mode_fixup = vc4_dpi_encoder_mode_fixup, + }; + + static const struct of_device_id vc4_dpi_dt_match[] = { |