diff mbox series

[v2,2/3] ARM: dts: aspeed: Add USB2.0 device controller node

Message ID 20220517082558.3534161-3-neal_liu@aspeedtech.com (mailing list archive)
State New, archived
Headers show
Series add Aspeed udc driver for ast2600 | expand

Commit Message

Neal Liu May 17, 2022, 8:25 a.m. UTC 
Add USB2.0 device controller(udc) node to device tree
for AST2600.

Signed-off-by: Neal Liu <neal_liu@aspeedtech.com>
---
 arch/arm/boot/dts/aspeed-g6.dtsi | 10 ++++++++++
 1 file changed, 10 insertions(+)

Comments

Neal Liu May 17, 2022, 2:50 p.m. UTC | #1 
> -----Original Message-----
> From: Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org>
> Sent: Tuesday, May 17, 2022 8:00 PM
> To: Neal Liu <neal_liu@aspeedtech.com>; Greg Kroah-Hartman
> <gregkh@linuxfoundation.org>; Rob Herring <robh+dt@kernel.org>; Krzysztof
> Kozlowski <krzysztof.kozlowski+dt@linaro.org>; Joel Stanley <joel@jms.id.au>;
> Andrew Jeffery <andrew@aj.id.au>; Felipe Balbi <balbi@kernel.org>; Sumit
> Semwal <sumit.semwal@linaro.org>; Christian König
> <christian.koenig@amd.com>; Geert Uytterhoeven <geert@linux-m68k.org>;
> Li Yang <leoyang.li@nxp.com>
> Cc: linux-aspeed@lists.ozlabs.org; linux-usb@vger.kernel.org;
> devicetree@vger.kernel.org; linux-arm-kernel@lists.infradead.org;
> linux-kernel@vger.kernel.org; linux-media@vger.kernel.org;
> dri-devel@lists.freedesktop.org; linaro-mm-sig@lists.linaro.org
> Subject: Re: [PATCH v2 2/3] ARM: dts: aspeed: Add USB2.0 device controller
> node
> 
> On 17/05/2022 10:25, Neal Liu wrote:
> > Add USB2.0 device controller(udc) node to device tree for AST2600.
> >
> > Signed-off-by: Neal Liu <neal_liu@aspeedtech.com>
> > ---
> >  arch/arm/boot/dts/aspeed-g6.dtsi | 10 ++++++++++
> >  1 file changed, 10 insertions(+)
> >
> > diff --git a/arch/arm/boot/dts/aspeed-g6.dtsi
> > b/arch/arm/boot/dts/aspeed-g6.dtsi
> > index 3d5ce9da42c3..5517313eb2b5 100644
> > --- a/arch/arm/boot/dts/aspeed-g6.dtsi
> > +++ b/arch/arm/boot/dts/aspeed-g6.dtsi
> > @@ -298,6 +298,16 @@ vhub: usb-vhub@1e6a0000 {
> >  			status = "disabled";
> >  		};
> >
> > +		udc: udc@1e6a2000 {
> 
> The same as DTS in bindings - generic node name, please.
> 

Is it possible to use "udc: usb-udc@1e6a2000" to distinguish it between "vhub: usb-vhub@1e6a0000"?

> 
> Best regards,
> Krzysztof
Neal Liu May 17, 2022, 3:21 p.m. UTC | #2 
> -----Original Message-----
> From: Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org>
> Sent: Tuesday, May 17, 2022 10:54 PM
> To: Neal Liu <neal_liu@aspeedtech.com>; Greg Kroah-Hartman
> <gregkh@linuxfoundation.org>; Rob Herring <robh+dt@kernel.org>; Krzysztof
> Kozlowski <krzysztof.kozlowski+dt@linaro.org>; Joel Stanley <joel@jms.id.au>;
> Andrew Jeffery <andrew@aj.id.au>; Felipe Balbi <balbi@kernel.org>; Sumit
> Semwal <sumit.semwal@linaro.org>; Christian König
> <christian.koenig@amd.com>; Geert Uytterhoeven <geert@linux-m68k.org>;
> Li Yang <leoyang.li@nxp.com>
> Cc: linux-aspeed@lists.ozlabs.org; linux-usb@vger.kernel.org;
> devicetree@vger.kernel.org; linux-arm-kernel@lists.infradead.org;
> linux-kernel@vger.kernel.org; linux-media@vger.kernel.org;
> dri-devel@lists.freedesktop.org; linaro-mm-sig@lists.linaro.org
> Subject: Re: [PATCH v2 2/3] ARM: dts: aspeed: Add USB2.0 device controller
> node
> 
> On 17/05/2022 16:50, Neal Liu wrote:
> >> -----Original Message-----
> >> From: Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org>
> >> Sent: Tuesday, May 17, 2022 8:00 PM
> >> To: Neal Liu <neal_liu@aspeedtech.com>; Greg Kroah-Hartman
> >> <gregkh@linuxfoundation.org>; Rob Herring <robh+dt@kernel.org>;
> >> Krzysztof Kozlowski <krzysztof.kozlowski+dt@linaro.org>; Joel Stanley
> >> <joel@jms.id.au>; Andrew Jeffery <andrew@aj.id.au>; Felipe Balbi
> >> <balbi@kernel.org>; Sumit Semwal <sumit.semwal@linaro.org>; Christian
> >> König <christian.koenig@amd.com>; Geert Uytterhoeven
> >> <geert@linux-m68k.org>; Li Yang <leoyang.li@nxp.com>
> >> Cc: linux-aspeed@lists.ozlabs.org; linux-usb@vger.kernel.org;
> >> devicetree@vger.kernel.org; linux-arm-kernel@lists.infradead.org;
> >> linux-kernel@vger.kernel.org; linux-media@vger.kernel.org;
> >> dri-devel@lists.freedesktop.org; linaro-mm-sig@lists.linaro.org
> >> Subject: Re: [PATCH v2 2/3] ARM: dts: aspeed: Add USB2.0 device
> >> controller node
> >>
> >> On 17/05/2022 10:25, Neal Liu wrote:
> >>> Add USB2.0 device controller(udc) node to device tree for AST2600.
> >>>
> >>> Signed-off-by: Neal Liu <neal_liu@aspeedtech.com>
> >>> ---
> >>>  arch/arm/boot/dts/aspeed-g6.dtsi | 10 ++++++++++
> >>>  1 file changed, 10 insertions(+)
> >>>
> >>> diff --git a/arch/arm/boot/dts/aspeed-g6.dtsi
> >>> b/arch/arm/boot/dts/aspeed-g6.dtsi
> >>> index 3d5ce9da42c3..5517313eb2b5 100644
> >>> --- a/arch/arm/boot/dts/aspeed-g6.dtsi
> >>> +++ b/arch/arm/boot/dts/aspeed-g6.dtsi
> >>> @@ -298,6 +298,16 @@ vhub: usb-vhub@1e6a0000 {
> >>>  			status = "disabled";
> >>>  		};
> >>>
> >>> +		udc: udc@1e6a2000 {
> >>
> >> The same as DTS in bindings - generic node name, please.
> >>
> >
> > Is it possible to use "udc: usb-udc@1e6a2000" to distinguish it between "vhub:
> usb-vhub@1e6a0000"?
> 
> Possible yes :), but not recommended and not wanted. Nodes should be generic
> and prefixes are added only if there is no unit address. You can though use
> some more descriptive label.
> 
"udc: usb@1e6a2000" is okay for you?

> 
> Best regards,
> Krzysztof
Neal Liu May 17, 2022, 3:32 p.m. UTC | #3 
> -----Original Message-----
> From: Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org>
> Sent: Tuesday, May 17, 2022 11:26 PM
> To: Neal Liu <neal_liu@aspeedtech.com>; Greg Kroah-Hartman
> <gregkh@linuxfoundation.org>; Rob Herring <robh+dt@kernel.org>; Krzysztof
> Kozlowski <krzysztof.kozlowski+dt@linaro.org>; Joel Stanley <joel@jms.id.au>;
> Andrew Jeffery <andrew@aj.id.au>; Felipe Balbi <balbi@kernel.org>; Sumit
> Semwal <sumit.semwal@linaro.org>; Christian König
> <christian.koenig@amd.com>; Geert Uytterhoeven <geert@linux-m68k.org>;
> Li Yang <leoyang.li@nxp.com>
> Cc: linux-aspeed@lists.ozlabs.org; linux-usb@vger.kernel.org;
> devicetree@vger.kernel.org; linux-arm-kernel@lists.infradead.org;
> linux-kernel@vger.kernel.org; linux-media@vger.kernel.org;
> dri-devel@lists.freedesktop.org; linaro-mm-sig@lists.linaro.org
> Subject: Re: [PATCH v2 2/3] ARM: dts: aspeed: Add USB2.0 device controller
> node
> 
> On 17/05/2022 17:21, Neal Liu wrote:
> >>>>>
> >>>>> +		udc: udc@1e6a2000 {
> >>>>
> >>>> The same as DTS in bindings - generic node name, please.
> >>>>
> >>>
> >>> Is it possible to use "udc: usb-udc@1e6a2000" to distinguish it between
> "vhub:
> >> usb-vhub@1e6a0000"?
> >>
> >> Possible yes :), but not recommended and not wanted. Nodes should be
> >> generic and prefixes are added only if there is no unit address. You
> >> can though use some more descriptive label.
> >>
> > "udc: usb@1e6a2000" is okay for you?
> 
> Yes, it's perfect.

Great ! I'll update it for next patch.
Thanks for your suggestion.
> 
> 
> Best regards,
> Krzysztof
diff mbox series

Patch

diff --git a/arch/arm/boot/dts/aspeed-g6.dtsi b/arch/arm/boot/dts/aspeed-g6.dtsi
index 3d5ce9da42c3..5517313eb2b5 100644
--- a/arch/arm/boot/dts/aspeed-g6.dtsi
+++ b/arch/arm/boot/dts/aspeed-g6.dtsi
@@ -298,6 +298,16 @@  vhub: usb-vhub@1e6a0000 {
 			status = "disabled";
 		};
 
+		udc: udc@1e6a2000 {
+			compatible = "aspeed,ast2600-udc";
+			reg = <0x1e6a2000 0x300>;
+			interrupts = <GIC_SPI 9 IRQ_TYPE_LEVEL_HIGH>;
+			clocks = <&syscon ASPEED_CLK_GATE_USBPORT2CLK>;
+			pinctrl-names = "default";
+			pinctrl-0 = <&pinctrl_usb2bd_default>;
+			status = "disabled";
+		};
+
 		apb {
 			compatible = "simple-bus";
 			#address-cells = <1>;