diff options
Diffstat (limited to 'target/linux/bcm27xx/patches-5.4/950-0842-drm-vc4-Allow-interlaced-HDMI-modes-from-FKMS.patch')
| -rw-r--r-- | target/linux/bcm27xx/patches-5.4/950-0842-drm-vc4-Allow-interlaced-HDMI-modes-from-FKMS.patch | 37 |
1 files changed, 37 insertions, 0 deletions
diff --git a/target/linux/bcm27xx/patches-5.4/950-0842-drm-vc4-Allow-interlaced-HDMI-modes-from-FKMS.patch b/target/linux/bcm27xx/patches-5.4/950-0842-drm-vc4-Allow-interlaced-HDMI-modes-from-FKMS.patch new file mode 100644 index 0000000000..8cb85316c6 --- /dev/null +++ b/target/linux/bcm27xx/patches-5.4/950-0842-drm-vc4-Allow-interlaced-HDMI-modes-from-FKMS.patch @@ -0,0 +1,37 @@ +From 354bf89fd678a6da6256a6ac37440c27c3b62e80 Mon Sep 17 00:00:00 2001 +From: Dave Stevenson <dave.stevenson@raspberrypi.com> +Date: Tue, 30 Jun 2020 18:04:13 +0100 +Subject: [PATCH] drm/vc4: Allow interlaced HDMI modes from FKMS. + +Having checked the firmware handling for interlaced modes, +it appears to be possible to support interlaced modes on +HDMI without adverse side effects, so do so. + +https://github.com/raspberrypi/linux/issues/3694 + +Signed-off-by: Dave Stevenson <dave.stevenson@raspberrypi.com> +--- + drivers/gpu/drm/vc4/vc4_firmware_kms.c | 5 ++++- + 1 file changed, 4 insertions(+), 1 deletion(-) + +--- a/drivers/gpu/drm/vc4/vc4_firmware_kms.c ++++ b/drivers/gpu/drm/vc4/vc4_firmware_kms.c +@@ -936,6 +936,9 @@ static void vc4_crtc_mode_set_nofb(struc + break; + } + ++ if (mode->flags & DRM_MODE_FLAG_INTERLACE) ++ mb.timings.flags |= TIMINGS_FLAGS_INTERLACE; ++ + mb.timings.video_id_code = frame.avi.video_code; + + if (!vc4_encoder->hdmi_monitor) { +@@ -1632,7 +1635,7 @@ vc4_fkms_connector_init(struct drm_devic + DRM_MODE_CONNECTOR_HDMIA); + drm_connector_helper_add(connector, + &vc4_fkms_connector_helper_funcs); +- connector->interlace_allowed = 0; ++ connector->interlace_allowed = 1; + } + + ret = drm_mode_create_tv_margin_properties(dev); |