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author | Álvaro Fernández Rojas <noltari@gmail.com> | 2022-05-16 23:40:32 +0200 |
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committer | Álvaro Fernández Rojas <noltari@gmail.com> | 2022-05-17 15:11:22 +0200 |
commit | 20ea6adbf199097c4f5f591ffee088340630dae4 (patch) | |
tree | d6719d95e136611a1c25bbf7789652d6d402779d /target/linux/bcm27xx/patches-5.15/950-0184-v3d_gem-Kick-the-clock-so-firmware-knows-we-are-usin.patch | |
parent | bca05bd072180dc38ef740b37ded9572a6db1981 (diff) | |
download | upstream-20ea6adbf199097c4f5f591ffee088340630dae4.tar.gz upstream-20ea6adbf199097c4f5f591ffee088340630dae4.tar.bz2 upstream-20ea6adbf199097c4f5f591ffee088340630dae4.zip |
bcm27xx: add support for linux v5.15
Build system: x86_64
Build-tested: bcm2708, bcm2709, bcm2710, bcm2711
Run-tested: bcm2708/RPiB+, bcm2709/RPi3B, bcm2710/RPi3B, bcm2711/RPi4B
Signed-off-by: Marty Jones <mj8263788@gmail.com>
Signed-off-by: Álvaro Fernández Rojas <noltari@gmail.com>
Diffstat (limited to 'target/linux/bcm27xx/patches-5.15/950-0184-v3d_gem-Kick-the-clock-so-firmware-knows-we-are-usin.patch')
-rw-r--r-- | target/linux/bcm27xx/patches-5.15/950-0184-v3d_gem-Kick-the-clock-so-firmware-knows-we-are-usin.patch | 27 |
1 files changed, 27 insertions, 0 deletions
diff --git a/target/linux/bcm27xx/patches-5.15/950-0184-v3d_gem-Kick-the-clock-so-firmware-knows-we-are-usin.patch b/target/linux/bcm27xx/patches-5.15/950-0184-v3d_gem-Kick-the-clock-so-firmware-knows-we-are-usin.patch new file mode 100644 index 0000000000..22698f493b --- /dev/null +++ b/target/linux/bcm27xx/patches-5.15/950-0184-v3d_gem-Kick-the-clock-so-firmware-knows-we-are-usin.patch @@ -0,0 +1,27 @@ +From fe92d91a83eca58dd756fa2558470c3f68e36499 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 +@@ -955,6 +955,10 @@ 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". |