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8299d1f057
Rebased RPi foundation patches on linux 5.10.59, removed applied and reverted patches, wireless patches and defconfig patches. bcm2708: boot tested on RPi B+ v1.2 bcm2709: boot tested on RPi 4B v1.1 4G bcm2711: boot tested on RPi 4B v1.1 4G Signed-off-by: Álvaro Fernández Rojas <noltari@gmail.com>
64 lines
2.2 KiB
Diff
64 lines
2.2 KiB
Diff
From 643f9b3a9e48fb2378d3dde8cfef452f7628e295 Mon Sep 17 00:00:00 2001
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From: Maxime Ripard <maxime@cerno.tech>
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Date: Thu, 3 Dec 2020 08:46:24 +0100
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Subject: [PATCH] drm/vc4: hdmi: Don't poll for the infoframes status
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on setup
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The infoframes are sent at a regular interval as a data island packet,
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so we don't need to wait for them to be sent when we're setting them up.
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However, we do need to poll when we're enabling since the we can't
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update the packet RAM until it has been sent.
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Let's add a boolean flag to tell whether we want to poll or not to
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support both cases.
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Suggested-by: Dave Stevenson <dave.stevenson@raspberrypi.com>
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Signed-off-by: Maxime Ripard <maxime@cerno.tech>
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Reviewed-by: Dave Stevenson <dave.stevenson@raspberrypi.com>
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Link: https://patchwork.freedesktop.org/patch/msgid/20201203074624.721559-1-maxime@cerno.tech
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---
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drivers/gpu/drm/vc4/vc4_hdmi.c | 10 +++++++---
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1 file changed, 7 insertions(+), 3 deletions(-)
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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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@@ -363,7 +363,8 @@ static int vc4_hdmi_connector_init(struc
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}
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static int vc4_hdmi_stop_packet(struct drm_encoder *encoder,
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- enum hdmi_infoframe_type type)
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+ enum hdmi_infoframe_type type,
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+ bool poll)
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{
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struct vc4_hdmi *vc4_hdmi = encoder_to_vc4_hdmi(encoder);
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u32 packet_id = type - 0x80;
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@@ -371,6 +372,9 @@ static int vc4_hdmi_stop_packet(struct d
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HDMI_WRITE(HDMI_RAM_PACKET_CONFIG,
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HDMI_READ(HDMI_RAM_PACKET_CONFIG) & ~BIT(packet_id));
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+ if (!poll)
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+ return 0;
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+
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return wait_for(!(HDMI_READ(HDMI_RAM_PACKET_STATUS) &
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BIT(packet_id)), 100);
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}
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@@ -399,7 +403,7 @@ static void vc4_hdmi_write_infoframe(str
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if (len < 0)
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return;
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- ret = vc4_hdmi_stop_packet(encoder, frame->any.type);
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+ ret = vc4_hdmi_stop_packet(encoder, frame->any.type, true);
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if (ret) {
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DRM_ERROR("Failed to wait for infoframe to go idle: %d\n", ret);
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return;
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@@ -1283,7 +1287,7 @@ static void vc4_hdmi_audio_reset(struct
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int ret;
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vc4_hdmi->audio.streaming = false;
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- ret = vc4_hdmi_stop_packet(encoder, HDMI_INFOFRAME_TYPE_AUDIO);
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+ ret = vc4_hdmi_stop_packet(encoder, HDMI_INFOFRAME_TYPE_AUDIO, false);
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if (ret)
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dev_err(dev, "Failed to stop audio infoframe: %d\n", ret);
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