Hi Russell
I'm working on Designware hdmi-audio, also add it as a standard ALSA device.
Before I saw this email, I also planed to submit my patchs to upsteam.
I'm very grateful if you can email those patchs to us.
Best Regards.
于 2014年11月04日 22:29, Russell King - ARM Linux 写道:
On Tue, Nov 04, 2014 at 09:33:10PM +0800, Andy Yan wrote:
From: Andy yan <andy.yan@xxxxxxxxxxxxxx>
We found freescale imx6 and rockchip rk3288 and Ingenic JZ4780 (Xburst/MIPS)
use the interface compatible Designware HDMI IP, but they also have some
lightly difference, such as phy pll configuration, register width(imx hdmi
register is one byte, but rk3288 is 4 bytes width and can only access by word),
4K support(imx6 doesn't support 4k, but rk3288 does).
To reuse the imx-hdmi driver, we do this patch set:
patch (1): split out imx-soc code from imx-hdmi to dw_hdmi-imx.c
patch (2): move imx-hdmi to bridge/, and rename to dw-hdmi to
make this driver indepent of drm-imx . And we will add rockchip
platform specific code dw_hdmi-rockchip.c later, this is depend
on drm-rockchip.
Great - I fully agree that this needs to be renamed as it is a Designware
IP.
Should it be moved into bridge/ ? It isn't implemented as a DRM bridge
driver at present, so this seems illogical. Is the longer term plan to
convert it to be a DRM bridge?
Secondly, if you want HDMI audio support, you may find the patches I
maintain for the SolidRun devices useful, which add this as a standard
ALSA device. I also have CEC support for it as well. If you're
interested, I'll email those.
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