bcm27xx: add kernel 5.10 support

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>

1 files changed, 62 insertions, 0 deletions

diff --git a/target/linux/bcm27xx/patches-5.10/950-0624-drm-vc4-FKMS-Change-of-Broadcast-RGB-mode-needs-a-mo.patch b/target/linux/bcm27xx/patches-5.10/950-0624-drm-vc4-FKMS-Change-of-Broadcast-RGB-mode-needs-a-mo.patch
new file mode 100644
index 0000000000..6487b5a728
--- /dev/null
+++ b/target/linux/bcm27xx/patches-5.10/950-0624-drm-vc4-FKMS-Change-of-Broadcast-RGB-mode-needs-a-mo.patch
@@ -0,0 +1,62 @@
+From caa5d5dac396f5bfaef8bd65c1c39f4ff03a504a Mon Sep 17 00:00:00 2001
+From: Dave Stevenson <dave.stevenson@raspberrypi.com>
+Date: Fri, 21 May 2021 11:15:04 +0100
+Subject: [PATCH] drm/vc4: FKMS: Change of Broadcast RGB mode needs a
+ mode change
+
+The Broadcast RGB (aka HDMI limited/full range) property is only
+notified to the firmware on mode change, so this needs to be
+signalled when set.
+
+https://github.com/raspberrypi/firmware/issues/1580
+
+Signed-off-by: Dave Stevenson <dave.stevenson@raspberrypi.com>
+---
+ drivers/gpu/drm/vc4/vc4_firmware_kms.c | 29 ++++++++++++++++++++++++++
+ 1 file changed, 29 insertions(+)
+
+--- a/drivers/gpu/drm/vc4/vc4_firmware_kms.c
++++ b/drivers/gpu/drm/vc4/vc4_firmware_kms.c
+@@ -1549,6 +1549,34 @@ int vc4_connector_atomic_set_property(st
+ 	return -EINVAL;
+ }
+ 
++int vc4_connector_atomic_check(struct drm_connector *connector,
++			       struct drm_atomic_state *state)
++{
++	struct drm_connector_state *old_state =
++		drm_atomic_get_old_connector_state(state, connector);
++	struct vc4_fkms_connector_state *vc4_old_state =
++					to_vc4_fkms_connector_state(old_state);
++	struct drm_connector_state *new_state =
++		drm_atomic_get_new_connector_state(state, connector);
++	struct vc4_fkms_connector_state *vc4_new_state =
++					to_vc4_fkms_connector_state(new_state);
++	struct drm_crtc *crtc = new_state->crtc;
++
++	if (!crtc)
++		return 0;
++
++	if (vc4_old_state->broadcast_rgb != vc4_new_state->broadcast_rgb) {
++		struct drm_crtc_state *crtc_state;
++
++		crtc_state = drm_atomic_get_crtc_state(state, crtc);
++		if (IS_ERR(crtc_state))
++			return PTR_ERR(crtc_state);
++
++		crtc_state->mode_changed = true;
++	}
++	return 0;
++}
++
+ static void vc4_hdmi_connector_reset(struct drm_connector *connector)
+ {
+ 	drm_atomic_helper_connector_reset(connector);
+@@ -1569,6 +1597,7 @@ static const struct drm_connector_funcs
+ static const struct drm_connector_helper_funcs vc4_fkms_connector_helper_funcs = {
+ 	.get_modes = vc4_fkms_connector_get_modes,
+ 	.best_encoder = vc4_fkms_connector_best_encoder,
++	.atomic_check = vc4_connector_atomic_check,
+ };
+ 
+ static const struct drm_connector_helper_funcs vc4_fkms_lcd_conn_helper_funcs = {