bcm27xx: import latest patches from the RPi foundation

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>

1 files changed, 56 insertions, 0 deletions

diff --git a/target/linux/bcm27xx/patches-5.4/950-0240-drm-vc4-Remove-unused-vc4_fkms_cancel_page_flip-func.patch b/target/linux/bcm27xx/patches-5.4/950-0240-drm-vc4-Remove-unused-vc4_fkms_cancel_page_flip-func.patch
new file mode 100644
index 0000000000..6740f7fc6e
--- /dev/null
+++ b/target/linux/bcm27xx/patches-5.4/950-0240-drm-vc4-Remove-unused-vc4_fkms_cancel_page_flip-func.patch
@@ -0,0 +1,56 @@
+From 99d029e3a379efb75725460b03465f80e0111da1 Mon Sep 17 00:00:00 2001
+From: Dave Stevenson <dave.stevenson@raspberrypi.org>
+Date: Wed, 10 Apr 2019 17:35:05 +0100
+Subject: [PATCH] drm: vc4: Remove unused vc4_fkms_cancel_page_flip
+ function
+
+"32a3dbe drm/vc4: Nuke preclose hook" removed vc4_cancel_page_flip,
+but vc4_fkms_cancel_page_flip was still be added to with the
+fkms driver, even though it was never called.
+Nuke it too.
+
+Signed-off-by: Dave Stevenson <dave.stevenson@raspberrypi.org>
+---
+ drivers/gpu/drm/vc4/vc4_drv.h          |  1 -
+ drivers/gpu/drm/vc4/vc4_firmware_kms.c | 20 --------------------
+ 2 files changed, 21 deletions(-)
+
+--- a/drivers/gpu/drm/vc4/vc4_drv.h
++++ b/drivers/gpu/drm/vc4/vc4_drv.h
+@@ -795,7 +795,6 @@ extern const struct dma_fence_ops vc4_fe
+ 
+ /* vc4_firmware_kms.c */
+ extern struct platform_driver vc4_firmware_kms_driver;
+-void vc4_fkms_cancel_page_flip(struct drm_crtc *crtc, struct drm_file *file);
+ 
+ /* vc4_gem.c */
+ void vc4_gem_init(struct drm_device *dev);
+--- a/drivers/gpu/drm/vc4/vc4_firmware_kms.c
++++ b/drivers/gpu/drm/vc4/vc4_firmware_kms.c
+@@ -741,26 +741,6 @@ static const struct drm_crtc_helper_func
+ 	.atomic_flush = vc4_crtc_atomic_flush,
+ };
+ 
+-/* Frees the page flip event when the DRM device is closed with the
+- * event still outstanding.
+- */
+-void vc4_fkms_cancel_page_flip(struct drm_crtc *crtc, struct drm_file *file)
+-{
+-	struct vc4_crtc *vc4_crtc = to_vc4_crtc(crtc);
+-	struct drm_device *dev = crtc->dev;
+-	unsigned long flags;
+-
+-	spin_lock_irqsave(&dev->event_lock, flags);
+-
+-	if (vc4_crtc->event && vc4_crtc->event->base.file_priv == file) {
+-		kfree(&vc4_crtc->event->base);
+-		drm_crtc_vblank_put(crtc);
+-		vc4_crtc->event = NULL;
+-	}
+-
+-	spin_unlock_irqrestore(&dev->event_lock, flags);
+-}
+-
+ static const struct of_device_id vc4_firmware_kms_dt_match[] = {
+ 	{ .compatible = "raspberrypi,rpi-firmware-kms" },
+ 	{}