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Deleted (upstreamed): bcm27xx/patches-5.10/950-0669-drm-vc4-hdmi-Make-sure-the-device-is-powered-with-CE.patch [1] bcm27xx/patches-5.10/950-0672-drm-vc4-hdmi-Move-initial-register-read-after-pm_run.patch [1] gemini/patches-5.10/0003-ARM-dts-gemini-NAS4220-B-fis-index-block-with-128-Ki.patch [2] Manually rebased: bcm27xx/patches-5.10/950-0675-drm-vc4-hdmi-Drop-devm-interrupt-handler-for-CEC-int.patch Manually reverted: generic/pending-5.10/860-Revert-ASoC-mediatek-Check-for-error-clk-pointer.patch [3] [1] https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git/commit/?h=v5.10.94&id=55b10b88ac8654fc2f31518aa349a2e643b37f18 [2] https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git/commit/?h=v5.10.94&id=958a8819d41420d7a74ed922a09cacc0ba3a4218 [3] https://lore.kernel.org/all/trinity-2a727d96-0335-4d03-8f30-e22a0e10112d-1643363480085@3c-app-gmx-bap33/ Signed-off-by: Rui Salvaterra <rsalvaterra@gmail.com> Signed-off-by: Daniel Golle <daniel@makrotopia.org>
32 lines
1.1 KiB
Diff
32 lines
1.1 KiB
Diff
From beadd8dfb16c626c2261fc6f8aab935cd7412603 Mon Sep 17 00:00:00 2001
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From: Maxime Ripard <maxime@cerno.tech>
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Date: Mon, 11 Jan 2021 15:23:01 +0100
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Subject: [PATCH] drm/vc4: hdmi: Update the CEC clock divider on HSM
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rate change
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As part of the enable sequence we might change the HSM clock rate if the
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pixel rate is different than the one we were already dealing with.
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On the BCM2835 however, the CEC clock derives from the HSM clock so any
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rate change will need to be reflected in the CEC clock divider to output
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40kHz.
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Fixes: cd4cb49dc5bb ("drm/vc4: hdmi: Adjust HSM clock rate depending on pixel rate")
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Reviewed-by: Dave Stevenson <dave.stevenson@raspberrypi.com>
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Signed-off-by: Maxime Ripard <maxime@cerno.tech>
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---
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drivers/gpu/drm/vc4/vc4_hdmi.c | 2 ++
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1 file changed, 2 insertions(+)
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--- a/drivers/gpu/drm/vc4/vc4_hdmi.c
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+++ b/drivers/gpu/drm/vc4/vc4_hdmi.c
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@@ -802,6 +802,8 @@ static void vc4_hdmi_encoder_pre_crtc_co
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vc4_hdmi_cec_update_clk_div(vc4_hdmi);
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+ vc4_hdmi_cec_update_clk_div(vc4_hdmi);
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+
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/*
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* FIXME: When the pixel freq is 594MHz (4k60), this needs to be setup
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* at 300MHz.
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