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authorÁlvaro Fernández Rojas <noltari@gmail.com>2021-02-18 18:04:33 +0100
committerÁlvaro Fernández Rojas <noltari@gmail.com>2021-02-18 23:42:32 +0100
commitf07e572f6447465d8938679533d604e402b0f066 (patch)
treecb333bd2a67e59e7c07659514850a0fd55fc825e /target/linux/bcm27xx/patches-5.4/950-0609-drm-vc4-Fixup-for-firmware-KMS.patch
parent5d3a6fd970619dfc55f8259035c3027d7613a2a6 (diff)
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bcm27xx: import latest patches from the RPi foundation
bcm2708: boot tested on RPi B+ v1.2 bcm2709: boot tested on RPi 3B v1.2 and RPi 4B v1.1 4G bcm2710: boot tested on RPi 3B v1.2 bcm2711: boot tested on RPi 4B v1.1 4G Signed-off-by: Álvaro Fernández Rojas <noltari@gmail.com>
Diffstat (limited to 'target/linux/bcm27xx/patches-5.4/950-0609-drm-vc4-Fixup-for-firmware-KMS.patch')
-rw-r--r--target/linux/bcm27xx/patches-5.4/950-0609-drm-vc4-Fixup-for-firmware-KMS.patch36
1 files changed, 36 insertions, 0 deletions
diff --git a/target/linux/bcm27xx/patches-5.4/950-0609-drm-vc4-Fixup-for-firmware-KMS.patch b/target/linux/bcm27xx/patches-5.4/950-0609-drm-vc4-Fixup-for-firmware-KMS.patch
new file mode 100644
index 0000000000..62080bffec
--- /dev/null
+++ b/target/linux/bcm27xx/patches-5.4/950-0609-drm-vc4-Fixup-for-firmware-KMS.patch
@@ -0,0 +1,36 @@
+From 3c10a82ae5ce60ee8b4dbd1d1f8436efaa4593c3 Mon Sep 17 00:00:00 2001
+From: Dave Stevenson <dave.stevenson@raspberrypi.com>
+Date: Mon, 30 Mar 2020 12:52:26 +0100
+Subject: [PATCH] drm/vc4: Fixup for firmware KMS
+
+Fix up "drm/vc4: Kick the core clock up during a mode change" for
+firmware KMS mode where we don't have the HVS or core clock
+configured.
+
+Signed-off-by: Dave Stevenson <dave.stevenson@raspberrypi.com>
+---
+ drivers/gpu/drm/vc4/vc4_kms.c | 6 ++++--
+ 1 file changed, 4 insertions(+), 2 deletions(-)
+
+--- a/drivers/gpu/drm/vc4/vc4_kms.c
++++ b/drivers/gpu/drm/vc4/vc4_kms.c
+@@ -239,7 +239,8 @@ vc4_atomic_complete_commit(struct drm_at
+ vc4_hvs_mask_underrun(dev, vc4_crtc_state->assigned_channel);
+ }
+
+- clk_set_rate(hvs->core_clk, 500000000);
++ if (!vc4->firmware_kms)
++ clk_set_rate(hvs->core_clk, 500000000);
+
+ drm_atomic_helper_wait_for_fences(dev, state, false);
+
+@@ -266,7 +267,8 @@ vc4_atomic_complete_commit(struct drm_at
+
+ drm_atomic_helper_commit_cleanup_done(state);
+
+- clk_set_rate(hvs->core_clk, 200000000);
++ if (!vc4->firmware_kms)
++ clk_set_rate(hvs->core_clk, 200000000);
+
+ drm_atomic_state_put(state);
+