bcm27xx: add linux 5.4 support

Tested on bcm2710 (Raspberry Pi 3B).

Signed-off-by: Álvaro Fernández Rojas <noltari@gmail.com>

1 files changed, 71 insertions, 0 deletions

diff --git a/target/linux/bcm27xx/patches-5.4/950-0105-drm-vc4-Remove-duplicate-primary-cursor-fields-from-.patch b/target/linux/bcm27xx/patches-5.4/950-0105-drm-vc4-Remove-duplicate-primary-cursor-fields-from-.patch
new file mode 100644
index 0000000000..d178046994
--- /dev/null
+++ b/target/linux/bcm27xx/patches-5.4/950-0105-drm-vc4-Remove-duplicate-primary-cursor-fields-from-.patch
@@ -0,0 +1,71 @@
+From f109eb9cb4a1916f6ec6c96addf4182ca781ff47 Mon Sep 17 00:00:00 2001
+From: Eric Anholt <eric@anholt.net>
+Date: Mon, 5 Feb 2018 18:22:03 +0000
+Subject: [PATCH] drm/vc4: Remove duplicate primary/cursor fields from
+ FKMS driver.
+
+The CRTC has those fields and we can just use them.
+
+Signed-off-by: Eric Anholt <eric@anholt.net>
+---
+ drivers/gpu/drm/vc4/vc4_firmware_kms.c | 24 +++++++-----------------
+ 1 file changed, 7 insertions(+), 17 deletions(-)
+
+--- a/drivers/gpu/drm/vc4/vc4_firmware_kms.c
++++ b/drivers/gpu/drm/vc4/vc4_firmware_kms.c
+@@ -37,8 +37,6 @@ struct vc4_crtc {
+ 	struct drm_crtc base;
+ 	struct drm_encoder *encoder;
+ 	struct drm_connector *connector;
+-	struct drm_plane *primary;
+-	struct drm_plane *cursor;
+ 	void __iomem *regs;
+ 
+ 	struct drm_pending_vblank_event *event;
+@@ -356,29 +354,24 @@ static void vc4_crtc_mode_set_nofb(struc
+ 
+ static void vc4_crtc_disable(struct drm_crtc *crtc, struct drm_crtc_state *old_state)
+ {
+-	struct vc4_crtc *vc4_crtc = to_vc4_crtc(crtc);
+-
+ 	/* Always turn the planes off on CRTC disable. In DRM, planes
+ 	 * are enabled/disabled through the update/disable hooks
+ 	 * above, and the CRTC enable/disable independently controls
+ 	 * whether anything scans out at all, but the firmware doesn't
+ 	 * give us a CRTC-level control for that.
+ 	 */
+-	vc4_cursor_plane_atomic_disable(vc4_crtc->cursor,
+-					vc4_crtc->cursor->state);
+-	vc4_plane_set_primary_blank(vc4_crtc->primary, true);
++	vc4_cursor_plane_atomic_disable(crtc->cursor, crtc->cursor->state);
++	vc4_plane_set_primary_blank(crtc->primary, true);
+ }
+ 
+ static void vc4_crtc_enable(struct drm_crtc *crtc, struct drm_crtc_state *old_state)
+ {
+-	struct vc4_crtc *vc4_crtc = to_vc4_crtc(crtc);
+-
+ 	/* Unblank the planes (if they're supposed to be displayed). */
+-	if (vc4_crtc->primary->state->fb)
+-		vc4_plane_set_primary_blank(vc4_crtc->primary, false);
+-	if (vc4_crtc->cursor->state->fb) {
+-		vc4_cursor_plane_atomic_update(vc4_crtc->cursor,
+-					       vc4_crtc->cursor->state);
++	if (crtc->primary->state->fb)
++		vc4_plane_set_primary_blank(crtc->primary, false);
++	if (crtc->cursor->state->fb) {
++		vc4_cursor_plane_atomic_update(crtc->cursor,
++					       crtc->cursor->state);
+ 	}
+ }
+ 
+@@ -689,9 +682,6 @@ static int vc4_fkms_bind(struct device *
+ 	primary_plane->crtc = crtc;
+ 	cursor_plane->crtc = crtc;
+ 
+-	vc4_crtc->primary = primary_plane;
+-	vc4_crtc->cursor = cursor_plane;
+-
+ 	vc4_encoder = devm_kzalloc(dev, sizeof(*vc4_encoder), GFP_KERNEL);
+ 	if (!vc4_encoder)
+ 		return -ENOMEM;