brcm2708: update to latest patches from RPi foundation

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

1 files changed, 27 insertions, 0 deletions

diff --git a/target/linux/brcm2708/patches-4.19/950-0764-v3d_gem-Kick-the-clock-so-firmware-knows-we-are-usin.patch b/target/linux/brcm2708/patches-4.19/950-0764-v3d_gem-Kick-the-clock-so-firmware-knows-we-are-usin.patch
new file mode 100644
index 0000000000..f10e2465f4
--- /dev/null
+++ b/target/linux/brcm2708/patches-4.19/950-0764-v3d_gem-Kick-the-clock-so-firmware-knows-we-are-usin.patch
@@ -0,0 +1,27 @@
+From ccf2b80332ba86e5a69f7e3a0f097d9558ad5c95 Mon Sep 17 00:00:00 2001
+From: popcornmix <popcornmix@gmail.com>
+Date: Thu, 5 Sep 2019 17:59:14 +0100
+Subject: [PATCH] v3d_gem: Kick the clock so firmware knows we are
+ using firmware clock interface
+
+Setting the v3d clock to low value allows firmware to handle dvfs in case
+where v3d hardware is not being actively used (e.g. console use).
+
+Signed-off-by: popcornmix <popcornmix@gmail.com>
+---
+ drivers/gpu/drm/v3d/v3d_gem.c | 4 ++++
+ 1 file changed, 4 insertions(+)
+
+--- a/drivers/gpu/drm/v3d/v3d_gem.c
++++ b/drivers/gpu/drm/v3d/v3d_gem.c
+@@ -1050,6 +1050,10 @@ v3d_gem_init(struct drm_device *dev)
+ 	mutex_init(&v3d->clk_lock);
+ 	INIT_DELAYED_WORK(&v3d->clk_down_work, v3d_clock_down_work);
+ 
++	/* kick the clock so firmware knows we are using firmware clock interface */
++	v3d_clock_up_get(v3d);
++	v3d_clock_up_put(v3d);
++
+ 	/* Note: We don't allocate address 0.  Various bits of HW
+ 	 * treat 0 as special, such as the occlusion query counters
+ 	 * where 0 means "disabled".