[yocto] [meta-raspberrypi][PATCH 5/8] Support for vc4 graphics driver: upgrade 4.4 kernel to 4.4.10

[Herve Jourdain]

One thing I didn't make configurable, but that maybe could be, is the parameter passed to the overlay.
I selected cma-256, based on experience from other people, and because my configuration is RPI2/3 with 1G of memory.
I realize it might not work well with RPI0/1, which have less memory available...
So even if I believe cma-256 is a good default value, it might be made selectable by the user, if we want to consider vc4 on RPI0/1.
I'd very much like to hear other people's opinion about that...

Herve

> Le 19 mai 2016 à 00:43, Herve Jourdain <herve.jourdain at neuf.fr> a écrit :
> 
> Hi Khem,
> 
> Yes, I've seen that you had sent a patch to upgrade to some revision of 4.4.9.
> Here, I upgrade to 4.4.10, but VC4 should work with the 4.4.9 revision you sent before.
> I mostly bumped to 4.4.10 because the firmware bumped to 4.4.10 - and the firmware bump is mandatory for VC4 to work effectively on RPI.
> 
> Herve
> 
>> Le 19 mai 2016 à 00:27, Khem Raj <raj.khem at gmail.com> a écrit :
>> 
>> 
>>> On May 18, 2016, at 5:21 AM, Herve Jourdain <herve.jourdain at neuf.fr> wrote:
>>> 
>>> This patch series enables the support for the VC4 graphics driver from Eric Anholt.
>>> Kernel upgrade to 4.4.10 (some 4.4.9 version would be enough, but the required firmware supports 4.4.10, so bump it anyway)
>> 
>> I have sent a patch for similar update. Have you looked at that
>> 
>>> 
>>> Signed-off-by: Herve Jourdain <herve.jourdain at neuf.fr>
>>> ---
>>> recipes-kernel/linux/linux-raspberrypi_4.4.bb | 4 ++--
>>> 1 file changed, 2 insertions(+), 2 deletions(-)
>>> 
>>> diff --git a/recipes-kernel/linux/linux-raspberrypi_4.4.bb b/recipes-kernel/linux/linux-raspberrypi_4.4.bb
>>> index 831ac5a..0bc6531 100644
>>> --- a/recipes-kernel/linux/linux-raspberrypi_4.4.bb
>>> +++ b/recipes-kernel/linux/linux-raspberrypi_4.4.bb
>>> @@ -1,8 +1,8 @@
>>> FILESEXTRAPATHS_prepend := "${THISDIR}/${PN}-${PV}:"
>>> 
>>> -LINUX_VERSION ?= "4.4.8"
>>> +LINUX_VERSION ?= "4.4.10"
>>> 
>>> -SRCREV = "fe7ad6aa5c6940817fe971d80a7b2a1d6052190a"
>>> +SRCREV = "4c2795dd50f98fa162cb53190eb557be44f92f58"
>>> SRC_URI = "git://github.com/raspberrypi/linux.git;protocol=git;branch=rpi-4.4.y \
>>>          file://0001-fix-dtbo-rules.patch \
>>> "
>>> --
>>> 2.7.4
>>> 
>>> --
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>>