From mboxrd@z Thu Jan 1 00:00:00 1970 From: "Kuankuan.Yang" Subject: Re: [PATCH 0/2] make imx hdmi publicly used by dw hdmi compatible platform Date: Thu, 06 Nov 2014 17:35:40 +0800 Message-ID: <545B40EC.2030001@rock-chips.com> References: <1415107992-34289-1-git-send-email-andy.yan@rock-chips.com> <20141104142908.GG4042@n2100.arm.linux.org.uk> Mime-Version: 1.0 Content-Type: text/plain; charset=UTF-8; format=flowed Content-Transfer-Encoding: QUOTED-PRINTABLE Return-path: In-Reply-To: <20141104142908.GG4042-l+eeeJia6m9vn6HldHNs0ANdhmdF6hFW@public.gmane.org> Sender: devicetree-owner-u79uwXL29TY76Z2rM5mHXA@public.gmane.org To: Russell King - ARM Linux , Andy Yan Cc: airlied-cv59FeDIM0c@public.gmane.org, heiko-4mtYJXux2i+zQB+pC5nmwQ@public.gmane.org, fabio.estevam-KZfg59tc24xl57MIdRCFDg@public.gmane.org, Greg Kroah-Hartman , Grant Likely , Rob Herring , Philipp Zabel , Shawn Guo , Josh Boyer , Sean Paul , Inki Dae , Dave Airlie , Arnd Bergmann , Lucas Stach , Zubair.Kakakhel-1AXoQHu6uovQT0dZR+AlfA@public.gmane.org, djkurtz-hpIqsD4AKlfQT0dZR+AlfA@public.gmane.org, linux-kernel-u79uwXL29TY76Z2rM5mHXA@public.gmane.org, dri-devel-PD4FTy7X32lNgt0PjOBp9y5qC8QIuHrW@public.gmane.org, devel-gWbeCf7V1WCQmaza687I9mD2FQJk+8+b@public.gmane.org, devicetree-u79uwXL29TY76Z2rM5mHXA@public.gmane.org, linux-rockchip-IAPFreCvJWM7uuMidbF8XUB+6BGkLq7r@public.gmane.org List-Id: dri-devel@lists.freedesktop.org Hi Russell I'm working on Designware hdmi-audio, also add it as a standard ALSA de= vice. 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. =E4=BA=8E 2014=E5=B9=B411=E6=9C=8804=E6=97=A5 22:29, Russell King - ARM= Linux =E5=86=99=E9=81=93: > On Tue, Nov 04, 2014 at 09:33:10PM +0800, Andy Yan wrote: >> From: Andy yan >> >> We found freescale imx6 and rockchip rk3288 and Ingenic JZ4780 (Xbur= st/MIPS) >> use the interface compatible Designware HDMI IP, but they also have = some >> lightly difference, such as phy pll configuration, register width(im= x hdmi >> register is one byte, but rk3288 is 4 bytes width and can only acces= s 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 Design= ware > IP. > > Should it be moved into bridge/ ? It isn't implemented as a DRM brid= ge > 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 standar= d > ALSA device. I also have CEC support for it as well. If you're > interested, I'll email those. > -- To unsubscribe from this list: send the line "unsubscribe devicetree" i= n the body of a message to majordomo-u79uwXL29TY76Z2rM5mHXA@public.gmane.org More majordomo info at http://vger.kernel.org/majordomo-info.html