mirror of
https://github.com/openwrt/openwrt.git
synced 2024-12-20 22:23:27 +00:00
f07e572f64
bcm2708: boot tested on RPi B+ v1.2 bcm2709: boot tested on RPi 3B v1.2 and RPi 4B v1.1 4G bcm2710: boot tested on RPi 3B v1.2 bcm2711: boot tested on RPi 4B v1.1 4G Signed-off-by: Álvaro Fernández Rojas <noltari@gmail.com>
110 lines
3.4 KiB
Diff
110 lines
3.4 KiB
Diff
From d52f29a5e0ee9882f6f734c057224686b9820152 Mon Sep 17 00:00:00 2001
|
|
From: Maxime Ripard <maxime@cerno.tech>
|
|
Date: Thu, 6 Feb 2020 15:40:34 +0100
|
|
Subject: [PATCH] drm/vc4: drv: Support BCM2711
|
|
|
|
The BCM2711 has a reworked display pipeline, and the load tracker needs
|
|
some adjustement to operate properly. Let's add a compatible for BCM2711
|
|
and disable the load tracker until properly supported.
|
|
|
|
Signed-off-by: Maxime Ripard <maxime@cerno.tech>
|
|
---
|
|
drivers/gpu/drm/vc4/vc4_drv.c | 1 +
|
|
drivers/gpu/drm/vc4/vc4_drv.h | 3 +++
|
|
drivers/gpu/drm/vc4/vc4_kms.c | 32 +++++++++++++++++++++-----------
|
|
drivers/gpu/drm/vc4/vc4_plane.c | 5 +++++
|
|
4 files changed, 30 insertions(+), 11 deletions(-)
|
|
|
|
--- a/drivers/gpu/drm/vc4/vc4_drv.c
|
|
+++ b/drivers/gpu/drm/vc4/vc4_drv.c
|
|
@@ -369,6 +369,7 @@ static int vc4_platform_drm_remove(struc
|
|
}
|
|
|
|
static const struct of_device_id vc4_of_match[] = {
|
|
+ { .compatible = "brcm,bcm2711-vc5", },
|
|
{ .compatible = "brcm,bcm2835-vc4", },
|
|
{ .compatible = "brcm,cygnus-vc4", },
|
|
{},
|
|
--- a/drivers/gpu/drm/vc4/vc4_drv.h
|
|
+++ b/drivers/gpu/drm/vc4/vc4_drv.h
|
|
@@ -205,6 +205,9 @@ struct vc4_dev {
|
|
|
|
int power_refcount;
|
|
|
|
+ /* Set to true when the load tracker is supported. */
|
|
+ bool load_tracker_available;
|
|
+
|
|
/* Set to true when the load tracker is active. */
|
|
bool load_tracker_enabled;
|
|
|
|
--- a/drivers/gpu/drm/vc4/vc4_kms.c
|
|
+++ b/drivers/gpu/drm/vc4/vc4_kms.c
|
|
@@ -421,6 +421,9 @@ static int vc4_load_tracker_atomic_check
|
|
struct drm_plane *plane;
|
|
int i;
|
|
|
|
+ if (!vc4->load_tracker_available)
|
|
+ return 0;
|
|
+
|
|
priv_state = drm_atomic_get_private_obj_state(state,
|
|
&vc4->load_tracker);
|
|
if (IS_ERR(priv_state))
|
|
@@ -520,10 +523,14 @@ int vc4_kms_load(struct drm_device *dev)
|
|
struct vc4_load_tracker_state *load_state;
|
|
int ret;
|
|
|
|
- /* Start with the load tracker enabled. Can be disabled through the
|
|
- * debugfs load_tracker file.
|
|
- */
|
|
- vc4->load_tracker_enabled = true;
|
|
+ if (!of_device_is_compatible(dev->dev->of_node, "brcm,bcm2711-vc5")) {
|
|
+ vc4->load_tracker_available = true;
|
|
+
|
|
+ /* Start with the load tracker enabled. Can be
|
|
+ * disabled through the debugfs load_tracker file.
|
|
+ */
|
|
+ vc4->load_tracker_enabled = true;
|
|
+ }
|
|
|
|
sema_init(&vc4->async_modeset, 1);
|
|
|
|
@@ -560,14 +567,17 @@ int vc4_kms_load(struct drm_device *dev)
|
|
drm_atomic_private_obj_init(dev, &vc4->ctm_manager, &ctm_state->base,
|
|
&vc4_ctm_state_funcs);
|
|
|
|
- load_state = kzalloc(sizeof(*load_state), GFP_KERNEL);
|
|
- if (!load_state) {
|
|
- drm_atomic_private_obj_fini(&vc4->ctm_manager);
|
|
- return -ENOMEM;
|
|
- }
|
|
+ if (vc4->load_tracker_available) {
|
|
+ load_state = kzalloc(sizeof(*load_state), GFP_KERNEL);
|
|
+ if (!load_state) {
|
|
+ drm_atomic_private_obj_fini(&vc4->ctm_manager);
|
|
+ return -ENOMEM;
|
|
+ }
|
|
|
|
- drm_atomic_private_obj_init(dev, &vc4->load_tracker, &load_state->base,
|
|
- &vc4_load_tracker_state_funcs);
|
|
+ drm_atomic_private_obj_init(dev, &vc4->load_tracker,
|
|
+ &load_state->base,
|
|
+ &vc4_load_tracker_state_funcs);
|
|
+ }
|
|
|
|
drm_mode_config_reset(dev);
|
|
|
|
--- a/drivers/gpu/drm/vc4/vc4_plane.c
|
|
+++ b/drivers/gpu/drm/vc4/vc4_plane.c
|
|
@@ -500,6 +500,11 @@ static void vc4_plane_calc_load(struct d
|
|
struct vc4_plane_state *vc4_state;
|
|
struct drm_crtc_state *crtc_state;
|
|
unsigned int vscale_factor;
|
|
+ struct vc4_dev *vc4;
|
|
+
|
|
+ vc4 = to_vc4_dev(state->plane->dev);
|
|
+ if (!vc4->load_tracker_available)
|
|
+ return;
|
|
|
|
vc4_state = to_vc4_plane_state(state);
|
|
crtc_state = drm_atomic_get_existing_crtc_state(state->state,
|