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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>
89 lines
3.1 KiB
Diff
89 lines
3.1 KiB
Diff
From e072b2d845ff91716d630f4d2a105bf63698cfe1 Mon Sep 17 00:00:00 2001
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From: Maxime Ripard <maxime@cerno.tech>
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Date: Tue, 15 Dec 2020 16:42:39 +0100
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Subject: [PATCH] drm/vc4: hdmi: Create a custom connector state
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When run with a higher bpc than 8, the clock of the HDMI controller needs
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to be adjusted. Let's create a connector state that will be used at
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atomic_check and atomic_enable to compute and store the clock rate
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associated to the state.
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Acked-by: Thomas Zimmermann <tzimmermann@suse.de>
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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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---
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drivers/gpu/drm/vc4/vc4_hdmi.c | 33 ++++++++++++++++++++++++++++++---
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drivers/gpu/drm/vc4/vc4_hdmi.h | 10 ++++++++++
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2 files changed, 40 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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@@ -214,10 +214,37 @@ static int vc4_hdmi_connector_get_modes(
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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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+ struct vc4_hdmi_connector_state *old_state =
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+ conn_state_to_vc4_hdmi_conn_state(connector->state);
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+ struct vc4_hdmi_connector_state *new_state =
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+ kzalloc(sizeof(*new_state), GFP_KERNEL);
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if (connector->state)
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- drm_atomic_helper_connector_tv_reset(connector);
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+ __drm_atomic_helper_connector_destroy_state(connector->state);
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+
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+ kfree(old_state);
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+ __drm_atomic_helper_connector_reset(connector, &new_state->base);
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+
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+ if (!new_state)
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+ return;
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+
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+ drm_atomic_helper_connector_tv_reset(connector);
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+}
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+
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+static struct drm_connector_state *
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+vc4_hdmi_connector_duplicate_state(struct drm_connector *connector)
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+{
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+ struct drm_connector_state *conn_state = connector->state;
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+ struct vc4_hdmi_connector_state *vc4_state = conn_state_to_vc4_hdmi_conn_state(conn_state);
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+ struct vc4_hdmi_connector_state *new_state;
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+
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+ new_state = kzalloc(sizeof(*new_state), GFP_KERNEL);
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+ if (!new_state)
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+ return NULL;
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+
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+ __drm_atomic_helper_connector_duplicate_state(connector, &new_state->base);
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+
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+ return &new_state->base;
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}
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static const struct drm_connector_funcs vc4_hdmi_connector_funcs = {
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@@ -225,7 +252,7 @@ static const struct drm_connector_funcs
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.fill_modes = drm_helper_probe_single_connector_modes,
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.destroy = vc4_hdmi_connector_destroy,
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.reset = vc4_hdmi_connector_reset,
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- .atomic_duplicate_state = drm_atomic_helper_connector_duplicate_state,
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+ .atomic_duplicate_state = vc4_hdmi_connector_duplicate_state,
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.atomic_destroy_state = drm_atomic_helper_connector_destroy_state,
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};
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--- a/drivers/gpu/drm/vc4/vc4_hdmi.h
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+++ b/drivers/gpu/drm/vc4/vc4_hdmi.h
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@@ -187,6 +187,16 @@ encoder_to_vc4_hdmi(struct drm_encoder *
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return container_of(_encoder, struct vc4_hdmi, encoder);
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}
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+struct vc4_hdmi_connector_state {
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+ struct drm_connector_state base;
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+};
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+
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+static inline struct vc4_hdmi_connector_state *
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+conn_state_to_vc4_hdmi_conn_state(struct drm_connector_state *conn_state)
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+{
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+ return container_of(conn_state, struct vc4_hdmi_connector_state, base);
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+}
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+
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void vc4_hdmi_phy_init(struct vc4_hdmi *vc4_hdmi,
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struct drm_display_mode *mode);
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void vc4_hdmi_phy_disable(struct vc4_hdmi *vc4_hdmi);
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