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, 39 insertions, 0 deletions

diff --git a/target/linux/bcm27xx/patches-4.19/950-0633-Fixup-FKMS-interrupt-handing-for-non-existent-displa.patch b/target/linux/bcm27xx/patches-4.19/950-0633-Fixup-FKMS-interrupt-handing-for-non-existent-displa.patch
new file mode 100644
index 0000000000..2626658d16
--- /dev/null
+++ b/target/linux/bcm27xx/patches-4.19/950-0633-Fixup-FKMS-interrupt-handing-for-non-existent-displa.patch
@@ -0,0 +1,39 @@
+From c2957d7709a43c81e5345d537feaa6980ffcc1a4 Mon Sep 17 00:00:00 2001
+From: James Hughes <james.hughes@raspberrypi.org>
+Date: Mon, 29 Jul 2019 12:02:59 +0100
+Subject: [PATCH] Fixup FKMS interrupt handing for non-existent display
+
+If an errant interrupt flag was received from a non-existent display,
+a NULL pointer access was made. Protect against this by checking if a
+second display is present prior to checking the interrupt flags.
+---
+ drivers/gpu/drm/vc4/vc4_firmware_kms.c | 17 ++++++++++-------
+ 1 file changed, 10 insertions(+), 7 deletions(-)
+
+--- a/drivers/gpu/drm/vc4/vc4_firmware_kms.c
++++ b/drivers/gpu/drm/vc4/vc4_firmware_kms.c
+@@ -1056,14 +1056,17 @@ static irqreturn_t vc4_crtc_irq_handler(
+ 				vc4_crtc_handle_page_flip(crtc_list[0]);
+ 			}
+ 
+-			/* Check for the secondary display too */
+-			chan = readl(crtc_list[0]->regs + SMIDSW1);
++			if (crtc_list[1]) {
++				/* Check for the secondary display too */
++				chan = readl(crtc_list[0]->regs + SMIDSW1);
+ 
+-			if (chan & 1) {
+-				writel(SMI_NEW, crtc_list[0]->regs + SMIDSW1);
+-				if (crtc_list[1]->vblank_enabled)
+-					drm_crtc_handle_vblank(&crtc_list[1]->base);
+-				vc4_crtc_handle_page_flip(crtc_list[1]);
++				if (chan & 1) {
++					writel(SMI_NEW, crtc_list[0]->regs + SMIDSW1);
++
++					if (crtc_list[1]->vblank_enabled)
++						drm_crtc_handle_vblank(&crtc_list[1]->base);
++					vc4_crtc_handle_page_flip(crtc_list[1]);
++				}
+ 			}
+ 		}
+