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63 lines
2.1 KiB
Diff
63 lines
2.1 KiB
Diff
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From caa5d5dac396f5bfaef8bd65c1c39f4ff03a504a Mon Sep 17 00:00:00 2001
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From: Dave Stevenson <dave.stevenson@raspberrypi.com>
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Date: Fri, 21 May 2021 11:15:04 +0100
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Subject: [PATCH] drm/vc4: FKMS: Change of Broadcast RGB mode needs a
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mode change
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The Broadcast RGB (aka HDMI limited/full range) property is only
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notified to the firmware on mode change, so this needs to be
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signalled when set.
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https://github.com/raspberrypi/firmware/issues/1580
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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_firmware_kms.c | 29 ++++++++++++++++++++++++++
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1 file changed, 29 insertions(+)
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--- a/drivers/gpu/drm/vc4/vc4_firmware_kms.c
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+++ b/drivers/gpu/drm/vc4/vc4_firmware_kms.c
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@@ -1549,6 +1549,34 @@ int vc4_connector_atomic_set_property(st
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return -EINVAL;
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}
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+int vc4_connector_atomic_check(struct drm_connector *connector,
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+ struct drm_atomic_state *state)
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+{
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+ struct drm_connector_state *old_state =
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+ drm_atomic_get_old_connector_state(state, connector);
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+ struct vc4_fkms_connector_state *vc4_old_state =
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+ to_vc4_fkms_connector_state(old_state);
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+ struct drm_connector_state *new_state =
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+ drm_atomic_get_new_connector_state(state, connector);
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+ struct vc4_fkms_connector_state *vc4_new_state =
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+ to_vc4_fkms_connector_state(new_state);
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+ struct drm_crtc *crtc = new_state->crtc;
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+
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+ if (!crtc)
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+ return 0;
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+
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+ if (vc4_old_state->broadcast_rgb != vc4_new_state->broadcast_rgb) {
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+ struct drm_crtc_state *crtc_state;
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+
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+ crtc_state = drm_atomic_get_crtc_state(state, crtc);
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+ if (IS_ERR(crtc_state))
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+ return PTR_ERR(crtc_state);
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+
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+ crtc_state->mode_changed = true;
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+ }
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+ return 0;
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+}
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+
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static void vc4_hdmi_connector_reset(struct drm_connector *connector)
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{
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drm_atomic_helper_connector_reset(connector);
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@@ -1569,6 +1597,7 @@ static const struct drm_connector_funcs
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static const struct drm_connector_helper_funcs vc4_fkms_connector_helper_funcs = {
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.get_modes = vc4_fkms_connector_get_modes,
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.best_encoder = vc4_fkms_connector_best_encoder,
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+ .atomic_check = vc4_connector_atomic_check,
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};
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static const struct drm_connector_helper_funcs vc4_fkms_lcd_conn_helper_funcs = {
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