brcm2708: update to latest patches from RPi Foundation

[openwrt/staging/chunkeey.git] / target / linux / brcm2708 / patches-4.19 / 950-0573-drm-vc4-Remove-340MHz-clock-limit-from-FKMS-now-scra.patch

diff --git a/target/linux/brcm2708/patches-4.19/950-0573-drm-vc4-Remove-340MHz-clock-limit-from-FKMS-now-scra.patch b/target/linux/brcm2708/patches-4.19/950-0573-drm-vc4-Remove-340MHz-clock-limit-from-FKMS-now-scra.patch
new file mode 100644 (file)
index 0000000..3e3d070
--- /dev/null
+++ b/target/linux/brcm2708/patches-4.19/950-0573-drm-vc4-Remove-340MHz-clock-limit-from-FKMS-now-scra.patch
@@ -0,0 +1,29 @@
+From d4a180e5b67c3ca9b8559d4f926f22b6c6705082 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
+@@ -830,12 +830,6 @@ 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;
+ }
+