From mboxrd@z Thu Jan 1 00:00:00 1970 From: Alexander Stein Subject: Re: [PATCH] DT: video: atmel_lcdc: Add example of fixed framebuffer memory Date: Tue, 15 Apr 2014 16:57:34 +0200 Message-ID: <2216878.FzI300VPNh@ws-stein> References: <1396333730-10592-1-git-send-email-alexander.stein@systec-electronic.com> Mime-Version: 1.0 Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7Bit Return-path: In-Reply-To: <1396333730-10592-1-git-send-email-alexander.stein-93q1YBGzJSMe9JSWTWOYM3xStJ4P+DSV@public.gmane.org> Sender: devicetree-owner-u79uwXL29TY76Z2rM5mHXA@public.gmane.org To: Rob Herring Cc: Pawel Moll , Mark Rutland , Ian Campbell , Kumar Gala , devicetree-u79uwXL29TY76Z2rM5mHXA@public.gmane.org List-Id: devicetree@vger.kernel.org Any feedback in this? Regards, Alexander On Tuesday 01 April 2014 08:28:50, Alexander Stein wrote: > This drivers allows a fixed framebuffer memory to be set by an additional > IORESOURCE_MEM resource. Thus add an example to the DT documentation. > > Signed-off-by: Alexander Stein > --- > Actually I stumbled myself over this wondering how can I use this specific > feature. In the end I found it myself my coincidence. So it's best to add > this as an example for other people maybe not that experienced on > device-tree. > > Documentation/devicetree/bindings/video/atmel,lcdc.txt | 12 +++++++++++- > 1 file changed, 11 insertions(+), 1 deletion(-) > > diff --git a/Documentation/devicetree/bindings/video/atmel,lcdc.txt b/Documentation/devicetree/bindings/video/atmel,lcdc.txt > index 1ec175e..92492b7 100644 > --- a/Documentation/devicetree/bindings/video/atmel,lcdc.txt > +++ b/Documentation/devicetree/bindings/video/atmel,lcdc.txt > @@ -10,7 +10,9 @@ Required properties: > "atmel,at91sam9g45es-lcdc" , > "atmel,at91sam9rl-lcdc" , > "atmel,at32ap-lcdc" > -- reg : Should contain 1 register ranges(address and length) > +- reg : Should contain 1 register ranges(address and length). > + Can contain an additional register range(address and length) > + for fixed framebuffer memory.Usefull for dedicated memories. > - interrupts : framebuffer controller interrupt > - display: a phandle pointing to the display node > > @@ -35,6 +37,14 @@ Example: > > }; > > +Example for fixed framebuffer memory: > + > + fb0: fb@0x00500000 { > + compatible = "atmel,at91sam9263-lcdc"; > + reg = <0x00700000 0x1000 0x70000000 0x200000>; > + [...] > + }; > + > Atmel LCDC Display > ----------------------------------------------------- > Required properties (as per of_videomode_helper): > -- Dipl.-Inf. Alexander Stein SYS TEC electronic GmbH Am Windrad 2 08468 Heinsdorfergrund Tel.: 03765 38600-1156 Fax: 03765 38600-4100 Email: alexander.stein-93q1YBGzJSMe9JSWTWOYM3xStJ4P+DSV@public.gmane.org Website: www.systec-electronic.com Managing Director: Dipl.-Phys. Siegmar Schmidt Commercial registry: Amtsgericht Chemnitz, HRB 28082 -- To unsubscribe from this list: send the line "unsubscribe devicetree" in the body of a message to majordomo-u79uwXL29TY76Z2rM5mHXA@public.gmane.org More majordomo info at http://vger.kernel.org/majordomo-info.html