37 lines
1.1 KiB
Diff
37 lines
1.1 KiB
Diff
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From 3c10a82ae5ce60ee8b4dbd1d1f8436efaa4593c3 Mon Sep 17 00:00:00 2001
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From: Dave Stevenson <dave.stevenson@raspberrypi.com>
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Date: Mon, 30 Mar 2020 12:52:26 +0100
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Subject: [PATCH] drm/vc4: Fixup for firmware KMS
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Fix up "drm/vc4: Kick the core clock up during a mode change" for
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firmware KMS mode where we don't have the HVS or core clock
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configured.
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Signed-off-by: Dave Stevenson <dave.stevenson@raspberrypi.com>
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---
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drivers/gpu/drm/vc4/vc4_kms.c | 6 ++++--
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1 file changed, 4 insertions(+), 2 deletions(-)
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--- a/drivers/gpu/drm/vc4/vc4_kms.c
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+++ b/drivers/gpu/drm/vc4/vc4_kms.c
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@@ -239,7 +239,8 @@ vc4_atomic_complete_commit(struct drm_at
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vc4_hvs_mask_underrun(dev, vc4_crtc_state->assigned_channel);
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}
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- clk_set_rate(hvs->core_clk, 500000000);
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+ if (!vc4->firmware_kms)
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+ clk_set_rate(hvs->core_clk, 500000000);
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drm_atomic_helper_wait_for_fences(dev, state, false);
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@@ -266,7 +267,8 @@ vc4_atomic_complete_commit(struct drm_at
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drm_atomic_helper_commit_cleanup_done(state);
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- clk_set_rate(hvs->core_clk, 200000000);
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+ if (!vc4->firmware_kms)
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+ clk_set_rate(hvs->core_clk, 200000000);
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drm_atomic_state_put(state);
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