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Diffstat (limited to 'target/linux/bcm27xx/patches-5.4/950-0259-drm-vc4-Remove-340MHz-clock-limit-from-FKMS-now-scra.patch')
-rw-r--r--target/linux/bcm27xx/patches-5.4/950-0259-drm-vc4-Remove-340MHz-clock-limit-from-FKMS-now-scra.patch29
1 files changed, 29 insertions, 0 deletions
diff --git a/target/linux/bcm27xx/patches-5.4/950-0259-drm-vc4-Remove-340MHz-clock-limit-from-FKMS-now-scra.patch b/target/linux/bcm27xx/patches-5.4/950-0259-drm-vc4-Remove-340MHz-clock-limit-from-FKMS-now-scra.patch
new file mode 100644
index 0000000000..06e073b2ea
--- /dev/null
+++ b/target/linux/bcm27xx/patches-5.4/950-0259-drm-vc4-Remove-340MHz-clock-limit-from-FKMS-now-scra.patch
@@ -0,0 +1,29 @@
+From 44c7ff7864d931759efd307ef641f522c0a5bbdb Mon Sep 17 00:00:00 2001
+From: Dave Stevenson <dave.stevenson@raspberrypi.org>
+Date: Mon, 10 Jun 2019 16:32:51 +0100
+Subject: [PATCH] drm/vc4: Remove 340MHz clock limit from FKMS now
+ scrambling issues resolved
+
+Firmware TMDS scrambling is now being correctly configured, so
+we can use it.
+
+Signed-off-by: Dave Stevenson <dave.stevenson@raspberrypi.org>
+---
+ drivers/gpu/drm/vc4/vc4_firmware_kms.c | 6 ------
+ 1 file changed, 6 deletions(-)
+
+--- a/drivers/gpu/drm/vc4/vc4_firmware_kms.c
++++ b/drivers/gpu/drm/vc4/vc4_firmware_kms.c
+@@ -831,12 +831,6 @@ vc4_crtc_mode_valid(struct drm_crtc *crt
+ break;
+ }
+
+- /* Limit the pixel clock until we can get dynamic HDMI 2.0 scrambling
+- * working.
+- */
+- if (mode->clock > 340000)
+- return MODE_CLOCK_HIGH;
+-
+ return MODE_OK;
+ }
+