openwrt/target/linux/brcm2708/patches-4.4/0099-drm-vc4-No-need-to-stop-the-stopped-threads.patch
Felix Fietkau 4224b52c3a brcm2708: add linux 4.4 support
- random-bcm2708 and spi-bcm2708 have been removed.
- sound-soc-bcm2708-i2s has been upstreamed as sound-soc-bcm2835-i2s.

Let's keep linux 4.1 for a while, since linux 4.4 appears to have some issues
with multicast traffic on RPi ethernet:
https://gist.github.com/Noltari/5b1cfdecce5ed4bc08fd

Signed-off-by: Álvaro Fernández Rojas <noltari@gmail.com>

SVN-Revision: 48266
2016-01-17 10:42:23 +00:00

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Diff

From 7fdb9332f996fbaa26eaa805ce72a6afa590a302 Mon Sep 17 00:00:00 2001
From: Eric Anholt <eric@anholt.net>
Date: Fri, 23 Oct 2015 12:31:56 +0100
Subject: [PATCH 099/127] drm/vc4: No need to stop the stopped threads.
This was leftover debug code from the hackdriver. We never submit
unless the thread is already idle.
Signed-off-by: Eric Anholt <eric@anholt.net>
---
drivers/gpu/drm/vc4/vc4_gem.c | 4 ----
1 file changed, 4 deletions(-)
--- a/drivers/gpu/drm/vc4/vc4_gem.c
+++ b/drivers/gpu/drm/vc4/vc4_gem.c
@@ -104,10 +104,6 @@ submit_cl(struct drm_device *dev, uint32
{
struct vc4_dev *vc4 = to_vc4_dev(dev);
- /* Stop any existing thread and set state to "stopped at halt" */
- V3D_WRITE(V3D_CTNCS(thread), V3D_CTRUN);
- barrier();
-
V3D_WRITE(V3D_CTNCA(thread), start);
barrier();