On 12/14/2015 1:53 AM, Laurent Pinchart wrote:
Hello Khiem,
On Friday 11 December 2015 15:43:27 Khiem Nguyen wrote:
On 12/6/2015 5:54 AM, Laurent Pinchart wrote:
On Saturday 05 December 2015 11:57:49 Geert Uytterhoeven wrote:
On Sat, Dec 5, 2015 at 3:12 AM, Laurent Pinchart wrote:
This patch set adds support for the Renesas R-Car Gen3 SoC family to the
VSP1 driver. The large number of patches is caused by a change in the
display controller architecture that makes usage of the VSP mandatory as
the display controller has lost the ability to read data from memory.
Patch 01/32 to 27/32 prepare for the implementation of an API exported
to the DRM driver in patch 28/32. Patches 31/32 enables support for the
R-Car Gen3 family, and patch 32/32 finally enhances perfomances by
implementing support for display lists.
The major change compared to v1 is the usage of the IP version register
instead of DT properties to configure device parameters such as the
number of BRU inputs or the availability of the BRU.
Thanks for your series!
As http://git.linuxtv.org/pinchartl/media.git/tag/?id=vsp1-kms-20151112
is getting old, and has lots of conflicts with recent -next, do you plan
to publish this in a branch, and a separate branch for integration, to
ease integration in renesas-drivers?
Alternatively, I can just import the series you posted, but having the
broken-out integration part would be nice.
The issue I'm facing is that there's more than just two series. Beside the
base VSP patches from this series, I have a series of DRM patches that
depend on this one, a series of V4L2 core patches, another series of VSP
patches that I still need to finish and a bunch of integration patches.
As some of these have dependencies on H3 CCF support that hasn't landed
in Simon's tree yet, I have merged your topic/cpg-mssr-v6 and
topic/r8a7795-drivers-sh-v1 branches into my tree for development.
I could keep all series in separate branches and merge the two topic
branches last, but that's not very handy during development when I have
to continuously rebase my patches. Is there a way I could handle this
that would make your life easier while not making mine more difficult ?
In the meantime I've pushed vsp1-kms-20151206 to
git://linuxtv.org/pinchartl/media.git.
I failed to confirm DU (VGA port) with above branch.
To make DU (VGA port) work,
it seems I need to merge more branches like topic/cpg-mssr-v6
and topic/r8a7795-drivers-sh-v1 branches from renesas-drivers repo, is
it correct ?
The
git://linuxtv.org/pinchartl/media.git vsp1-kms-20151206
branch already contains topic/r8a7795-drivers-sh-v1 and topic/cpg-mssr-v6.
What is the failure you're seeing ?
Honestly, I tried some configurations but there's no output to VGA port
(the display is blank).
1. The default 'defconfig' of this tag.
2. Enable DRM, CMA, RCAR_DU
3. Enable DRM, CMA, RCAR_DU, VSP1
-> I got kernel build error in file
drivers/media/platform/vsp1/vsp1_pipe.c
I also tried another tag vsp1-kms-request-20151206 which have more
patches on top of vsp1-kms-20151206.
After enabling all DRM, CMA, RCAR_DU, VSP1, kernel build is OK.
Got a 'green color' display and no kernel log output.
With the same u-boot and IPL, it's able to see display output normally
if using Gen3 BSP version.
Therefore, I guess it's no impact to DU operation.
Please let me know your procedure to test DU operation with your tag.
--
Best regards,
KHIEM Nguyen
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