brcm2708: rename target to bcm27xx

This change makes the names of Broadcom targets consistent by using
the common notation based on SoC/CPU ID (which is used internally
anyway), bcmXXXX instead of brcmXXXX.
This is even used for target TITLE in make menuconfig already,
only the short target name used brcm so far.

Despite, since subtargets range from bcm2708 to bcm2711, it seems
appropriate to use bcm27xx instead of bcm2708 (again, as already done
for BOARDNAME).

This also renames the packages brcm2708-userland and brcm2708-gpu-fw.

Signed-off-by: Adrian Schmutzler <freifunk@adrianschmutzler.de>
Acked-by: Álvaro Fernández Rojas <noltari@gmail.com>

1 files changed, 103 insertions, 0 deletions

diff --git a/target/linux/bcm27xx/patches-4.19/950-0108-drm-vc4-Add-support-for-setting-DPMS-in-firmwarekms.patch b/target/linux/bcm27xx/patches-4.19/950-0108-drm-vc4-Add-support-for-setting-DPMS-in-firmwarekms.patch
new file mode 100644
index 0000000000..2a52b0f98a
--- /dev/null
+++ b/target/linux/bcm27xx/patches-4.19/950-0108-drm-vc4-Add-support-for-setting-DPMS-in-firmwarekms.patch
@@ -0,0 +1,103 @@
+From c95479213d28d9866e617a54b0435c974874ce9d Mon Sep 17 00:00:00 2001
+From: Eric Anholt <eric@anholt.net>
+Date: Thu, 6 Jul 2017 11:45:48 -0700
+Subject: [PATCH] drm/vc4: Add support for setting DPMS in firmwarekms.
+
+This ensures that the screen goes blank during DPMS (screensaver),
+including the cursor.  Planes don't necessarily get disabled during
+CRTC disable, so we need to be careful to not leave them on or turn
+them back on early.
+
+Signed-off-by: Eric Anholt <eric@anholt.net>
+---
+ drivers/gpu/drm/vc4/vc4_firmware_kms.c | 40 ++++++++++++++++++++++++--
+ 1 file changed, 37 insertions(+), 3 deletions(-)
+
+--- a/drivers/gpu/drm/vc4/vc4_firmware_kms.c
++++ b/drivers/gpu/drm/vc4/vc4_firmware_kms.c
+@@ -36,6 +36,8 @@ 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;
+@@ -123,8 +125,6 @@ static void vc4_primary_plane_atomic_upd
+ 	u32 bpp = 32;
+ 	int ret;
+ 
+-	vc4_plane_set_primary_blank(plane, false);
+-
+ 	fbinfo->xres = state->crtc_w;
+ 	fbinfo->yres = state->crtc_h;
+ 	fbinfo->xres_virtual = state->crtc_w;
+@@ -168,6 +168,12 @@ static void vc4_primary_plane_atomic_upd
+ 				       vc4_plane->fbinfo_bus_addr);
+ 	WARN_ON_ONCE(fbinfo->pitch != fb->pitches[0]);
+ 	WARN_ON_ONCE(fbinfo->base != bo->paddr + fb->offsets[0]);
++
++	/* If the CRTC is on (or going to be on) and we're enabled,
++	 * then unblank.  Otherwise, stay blank until CRTC enable.
++	*/
++	if (state->crtc->state->active)
++		vc4_plane_set_primary_blank(plane, false);
+ }
+ 
+ static void vc4_primary_plane_atomic_disable(struct drm_plane *plane,
+@@ -184,7 +190,12 @@ static void vc4_cursor_plane_atomic_upda
+ 	struct drm_framebuffer *fb = state->fb;
+ 	struct drm_gem_cma_object *bo = drm_fb_cma_get_gem_obj(fb, 0);
+ 	int ret;
+-	u32 packet_state[] = { true, state->crtc_x, state->crtc_y, 0 };
++	u32 packet_state[] = {
++		state->crtc->state->active,
++		state->crtc_x,
++		state->crtc_y,
++		0
++	};
+ 	u32 packet_info[] = { state->crtc_w, state->crtc_h,
+ 			      0, /* unused */
+ 			      bo->paddr + fb->offsets[0],
+@@ -321,10 +332,30 @@ 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);
+ }
+ 
+ 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);
++	}
+ }
+ 
+ static int vc4_crtc_atomic_check(struct drm_crtc *crtc,
+@@ -618,6 +649,9 @@ 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;