From mboxrd@z Thu Jan 1 00:00:00 1970 From: David Lechner Subject: Re: [PATCH 1/3] ARM: dts: da850: Add the cppi41 dma node Date: Tue, 10 Jan 2017 10:15:29 -0600 Message-ID: <026deab8-8584-0744-3ec5-9346a7f6d16a@lechnology.com> References: <20170109162449.5012-1-abailon@baylibre.com> <20170109162449.5012-2-abailon@baylibre.com> <811adb6b-00e4-bbc4-d6f5-7bf3ba85ab63@cogentembedded.com> Mime-Version: 1.0 Content-Type: text/plain; charset=utf-8; format=flowed Content-Transfer-Encoding: 7bit Return-path: In-Reply-To: <811adb6b-00e4-bbc4-d6f5-7bf3ba85ab63-M4DtvfQ/ZS1MRgGoP+s0PdBPR1lH4CV8@public.gmane.org> Sender: linux-usb-owner-u79uwXL29TY76Z2rM5mHXA@public.gmane.org To: Sergei Shtylyov , Alexandre Bailon , nsekhar-l0cyMroinI0@public.gmane.org, khilman-rdvid1DuHRBWk0Htik3J/w@public.gmane.org Cc: vinod.koul-ral2JQCrhuEAvxtiuMwx3w@public.gmane.org, dmaengine-u79uwXL29TY76Z2rM5mHXA@public.gmane.org, linux-usb-u79uwXL29TY76Z2rM5mHXA@public.gmane.org, ptitiano-rdvid1DuHRBWk0Htik3J/w@public.gmane.org, tony-4v6yS6AI5VpBDgjK7y7TUQ@public.gmane.org, linux-omap-u79uwXL29TY76Z2rM5mHXA@public.gmane.org, devicetree-u79uwXL29TY76Z2rM5mHXA@public.gmane.org, robh+dt-DgEjT+Ai2ygdnm+yROfE0A@public.gmane.org, b-liu-l0cyMroinI0@public.gmane.org List-Id: linux-omap@vger.kernel.org On 01/09/2017 12:26 PM, Sergei Shtylyov wrote: > Hello. > > On 01/09/2017 07:24 PM, Alexandre Bailon wrote: > >> This adds the device tree node for the cppi41 dma >> used by the usb otg controller present in the da850 family of SoC's. >> >> Signed-off-by: Alexandre Bailon >> --- >> arch/arm/boot/dts/da850.dtsi | 16 ++++++++++++++++ >> 1 file changed, 16 insertions(+) >> >> diff --git a/arch/arm/boot/dts/da850.dtsi b/arch/arm/boot/dts/da850.dtsi >> index 104155d..d6b406a 100644 >> --- a/arch/arm/boot/dts/da850.dtsi >> +++ b/arch/arm/boot/dts/da850.dtsi >> @@ -403,6 +403,22 @@ >> phy-names = "usb-phy"; >> status = "disabled"; >> }; >> + cppi41dma: dma-controller@201000 { >> + compatible = "ti,da8xx-cppi41"; >> + reg = <0x200000 0x1000 > > I don't remember any DA8xx glue regs having to do with the CPPI 4.1... > >> + 0x201000 0x1000 >> + 0x202000 0x1000 >> + 0x204000 0x4000>; >> + reg-names = "glue", "controller", >> + "scheduler", "queuemgr"; >> + interrupts = <58>; >> + interrupt-names = "glue"; >> + #dma-cells = <2>; >> + #dma-channels = <4>; >> + #dma-requests = <256>; >> + status = "disabled"; > > Why disabled? It doesn't use any external pins... Why enable it if musb node is not also enabled? > > [...] > > MBR, Sergei > -- To unsubscribe from this list: send the line "unsubscribe linux-usb" in the body of a message to majordomo-u79uwXL29TY76Z2rM5mHXA@public.gmane.org More majordomo info at http://vger.kernel.org/majordomo-info.html