Patch "ARM: bcm2835: Enable missing CMA settings for VC4 driver" has been added to the 4.9-stable tree

This is a note to let you know that I've just added the patch titled

ARM: bcm2835: Enable missing CMA settings for VC4 driver

to the 4.9-stable tree which can be found at:
http://www.kernel.org/git/?p=linux/kernel/git/stable/stable-queue.git;a=summary

The filename of the patch is:
arm-bcm2835-enable-missing-cma-settings-for-vc4-driver.patch
and it can be found in the queue-4.9 subdirectory.

If you, or anyone else, feels it should not be added to the stable tree, please let <[email protected]> know about it.

From: Stefan Wahren <[email protected]>
Date: Sat, 4 Mar 2017 09:43:51 +0000
Subject: ARM: bcm2835: Enable missing CMA settings for VC4 driver

From: Stefan Wahren <[email protected]>

[ Upstream commit bdd3c25423cb42171446940bca0946e0443e1a84 ]

Currently bcm2835_defconfig has CMA disabled which makes the HDMI output on a Raspberry Pi 1 stop working during boot:

fb: switching to vc4drmfb from simple
Console: switching to colour dummy device 80x30 [drm] Initialized vc4 0.0.0 20140616 for soc:gpu on minor 0 [drm] Supports vblank timestamp caching Rev 2 (21.10.2013). [drm] Driver supports precise vblank timestamp query. vc4-drm soc:gpu: failed to allocate buffer with size 9216000 vc4-drm soc:gpu: Failed to set initial hw configuration.

So enable CMA and DMA_CMA in bcm2835_defconfig.

---
 arch/arm/configs/bcm2835_defconfig |    4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

@@ -1,6 +1,5 @@
 # CONFIG_LOCALVERSION_AUTO is not set
 CONFIG_SYSVIPC=y
-CONFIG_FHANDLE=y
 CONFIG_NO_HZ=y
 CONFIG_HIGH_RES_TIMERS=y
 CONFIG_BSD_PROCESS_ACCT=y

@@ -32,6 +31,7 @@ CONFIG_PREEMPT_VOLUNTARY=y
 CONFIG_AEABI=y
 CONFIG_KSM=y
 CONFIG_CLEANCACHE=y
+CONFIG_CMA=y
 CONFIG_SECCOMP=y
 CONFIG_KEXEC=y
 CONFIG_CRASH_DUMP=y

@@ -52,6 +52,7 @@ CONFIG_MAC80211=y
 CONFIG_DEVTMPFS=y
 CONFIG_DEVTMPFS_MOUNT=y
 # CONFIG_STANDALONE is not set
+CONFIG_DMA_CMA=y
 CONFIG_SCSI=y
 CONFIG_BLK_DEV_SD=y
 CONFIG_SCSI_CONSTANTS=y

@@ -62,7 +63,6 @@ CONFIG_USB_NET_SMSC95XX=y
 CONFIG_ZD1211RW=y
 CONFIG_INPUT_EVDEV=y
 # CONFIG_LEGACY_PTYS is not set
-# CONFIG_DEVKMEM is not set
 CONFIG_SERIAL_AMBA_PL011=y
 CONFIG_SERIAL_AMBA_PL011_CONSOLE=y
 CONFIG_TTY_PRINTK=y

Patches currently in stable-queue which might be from [email protected] are

queue-4.9/arm-bcm2835-enable-missing-cma-settings-for-vc4-driver.patch