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Date: Fri, 22 Nov 2019 17:22:43 +0000
From: Robin Murphy <robin.murphy@....com>
To: Gregory CLEMENT <gregory.clement@...tlin.com>,
Cristian Birsan <cristian.birsan@...rochip.com>,
Felipe Balbi <balbi@...nel.org>,
Greg Kroah-Hartman <gregkh@...uxfoundation.org>,
Alan Stern <stern@...land.harvard.edu>,
linux-usb@...r.kernel.org, linux-kernel@...r.kernel.org
Cc: devicetree@...r.kernel.org,
Alexandre Belloni <alexandre.belloni@...tlin.com>,
Ludovic Desroches <ludovic.desroches@...rochip.com>,
Rob Herring <robh+dt@...nel.org>,
Thomas Petazzoni <thomas.petazzoni@...tlin.com>,
linux-arm-kernel@...ts.infradead.org
Subject: Re: [PATCH 3/3] ARM: dts: at91: Remove the USB EP child node
On 07/11/2019 3:31 pm, Gregory CLEMENT wrote:
> The endpoint configuration used to be stored in the device tree,
> however the configuration depend on the "version" of the controller
> itself.
>
> Then the EP child node are useless and describe as deprecated in the
> documentation binding: remove all the nodes from the SoC device tree
> file.
Just as a drive-by comment, it's presumably worth getting rid of the
#address-cells and #size-cells properties too (here and in the binding
example).
Robin.
> Signed-off-by: Gregory CLEMENT <gregory.clement@...tlin.com>
> ---
> arch/arm/boot/dts/at91sam9g45.dtsi | 52 -------------
> arch/arm/boot/dts/at91sam9rl.dtsi | 52 -------------
> arch/arm/boot/dts/at91sam9x5.dtsi | 52 -------------
> arch/arm/boot/dts/sama5d2.dtsi | 118 -----------------------------
> arch/arm/boot/dts/sama5d3.dtsi | 105 -------------------------
> arch/arm/boot/dts/sama5d4.dtsi | 118 -----------------------------
> 6 files changed, 497 deletions(-)
>
> diff --git a/arch/arm/boot/dts/at91sam9g45.dtsi b/arch/arm/boot/dts/at91sam9g45.dtsi
> index 691c95ea6175..63bfe546cd8d 100644
> --- a/arch/arm/boot/dts/at91sam9g45.dtsi
> +++ b/arch/arm/boot/dts/at91sam9g45.dtsi
> @@ -1204,58 +1204,6 @@
> clocks = <&udphs_clk>, <&utmi>;
> clock-names = "pclk", "hclk";
> status = "disabled";
> -
> - ep@0 {
> - reg = <0>;
> - atmel,fifo-size = <64>;
> - atmel,nb-banks = <1>;
> - };
> -
> - ep@1 {
> - reg = <1>;
> - atmel,fifo-size = <1024>;
> - atmel,nb-banks = <2>;
> - atmel,can-dma;
> - atmel,can-isoc;
> - };
> -
> - ep@2 {
> - reg = <2>;
> - atmel,fifo-size = <1024>;
> - atmel,nb-banks = <2>;
> - atmel,can-dma;
> - atmel,can-isoc;
> - };
> -
> - ep@3 {
> - reg = <3>;
> - atmel,fifo-size = <1024>;
> - atmel,nb-banks = <3>;
> - atmel,can-dma;
> - };
> -
> - ep@4 {
> - reg = <4>;
> - atmel,fifo-size = <1024>;
> - atmel,nb-banks = <3>;
> - atmel,can-dma;
> - };
> -
> - ep@5 {
> - reg = <5>;
> - atmel,fifo-size = <1024>;
> - atmel,nb-banks = <3>;
> - atmel,can-dma;
> - atmel,can-isoc;
> - };
> -
> - ep@6 {
> - reg = <6>;
> - atmel,fifo-size = <1024>;
> - atmel,nb-banks = <3>;
> - atmel,can-dma;
> - atmel,can-isoc;
> - };
> };
>
> clk32k: sckc@...ffd50 {
> diff --git a/arch/arm/boot/dts/at91sam9rl.dtsi b/arch/arm/boot/dts/at91sam9rl.dtsi
> index 8643b7151565..e118bacb7d7c 100644
> --- a/arch/arm/boot/dts/at91sam9rl.dtsi
> +++ b/arch/arm/boot/dts/at91sam9rl.dtsi
> @@ -308,58 +308,6 @@
> clocks = <&pmc PMC_TYPE_PERIPHERAL 22>, <&pmc PMC_TYPE_CORE PMC_UTMI>;
> clock-names = "pclk", "hclk";
> status = "disabled";
> -
> - ep@0 {
> - reg = <0>;
> - atmel,fifo-size = <64>;
> - atmel,nb-banks = <1>;
> - };
> -
> - ep@1 {
> - reg = <1>;
> - atmel,fifo-size = <1024>;
> - atmel,nb-banks = <2>;
> - atmel,can-dma;
> - atmel,can-isoc;
> - };
> -
> - ep@2 {
> - reg = <2>;
> - atmel,fifo-size = <1024>;
> - atmel,nb-banks = <2>;
> - atmel,can-dma;
> - atmel,can-isoc;
> - };
> -
> - ep@3 {
> - reg = <3>;
> - atmel,fifo-size = <1024>;
> - atmel,nb-banks = <3>;
> - atmel,can-dma;
> - };
> -
> - ep@4 {
> - reg = <4>;
> - atmel,fifo-size = <1024>;
> - atmel,nb-banks = <3>;
> - atmel,can-dma;
> - };
> -
> - ep@5 {
> - reg = <5>;
> - atmel,fifo-size = <1024>;
> - atmel,nb-banks = <3>;
> - atmel,can-dma;
> - atmel,can-isoc;
> - };
> -
> - ep@6 {
> - reg = <6>;
> - atmel,fifo-size = <1024>;
> - atmel,nb-banks = <3>;
> - atmel,can-dma;
> - atmel,can-isoc;
> - };
> };
>
> dma0: dma-controller@...fe600 {
> diff --git a/arch/arm/boot/dts/at91sam9x5.dtsi b/arch/arm/boot/dts/at91sam9x5.dtsi
> index 7c2eb93f8cac..685a1b9f3ae5 100644
> --- a/arch/arm/boot/dts/at91sam9x5.dtsi
> +++ b/arch/arm/boot/dts/at91sam9x5.dtsi
> @@ -876,58 +876,6 @@
> clocks = <&pmc PMC_TYPE_CORE PMC_UTMI>, <&pmc PMC_TYPE_PERIPHERAL 23>;
> clock-names = "hclk", "pclk";
> status = "disabled";
> -
> - ep@0 {
> - reg = <0>;
> - atmel,fifo-size = <64>;
> - atmel,nb-banks = <1>;
> - };
> -
> - ep@1 {
> - reg = <1>;
> - atmel,fifo-size = <1024>;
> - atmel,nb-banks = <2>;
> - atmel,can-dma;
> - atmel,can-isoc;
> - };
> -
> - ep@2 {
> - reg = <2>;
> - atmel,fifo-size = <1024>;
> - atmel,nb-banks = <2>;
> - atmel,can-dma;
> - atmel,can-isoc;
> - };
> -
> - ep@3 {
> - reg = <3>;
> - atmel,fifo-size = <1024>;
> - atmel,nb-banks = <3>;
> - atmel,can-dma;
> - };
> -
> - ep@4 {
> - reg = <4>;
> - atmel,fifo-size = <1024>;
> - atmel,nb-banks = <3>;
> - atmel,can-dma;
> - };
> -
> - ep@5 {
> - reg = <5>;
> - atmel,fifo-size = <1024>;
> - atmel,nb-banks = <3>;
> - atmel,can-dma;
> - atmel,can-isoc;
> - };
> -
> - ep@6 {
> - reg = <6>;
> - atmel,fifo-size = <1024>;
> - atmel,nb-banks = <3>;
> - atmel,can-dma;
> - atmel,can-isoc;
> - };
> };
>
> watchdog: watchdog@...ffe40 {
> diff --git a/arch/arm/boot/dts/sama5d2.dtsi b/arch/arm/boot/dts/sama5d2.dtsi
> index 2e2c1a7b1d1d..daafcffbe033 100644
> --- a/arch/arm/boot/dts/sama5d2.dtsi
> +++ b/arch/arm/boot/dts/sama5d2.dtsi
> @@ -122,124 +122,6 @@
> clocks = <&pmc PMC_TYPE_PERIPHERAL 42>, <&pmc PMC_TYPE_CORE PMC_UTMI>;
> clock-names = "pclk", "hclk";
> status = "disabled";
> -
> - ep@0 {
> - reg = <0>;
> - atmel,fifo-size = <64>;
> - atmel,nb-banks = <1>;
> - };
> -
> - ep@1 {
> - reg = <1>;
> - atmel,fifo-size = <1024>;
> - atmel,nb-banks = <3>;
> - atmel,can-dma;
> - atmel,can-isoc;
> - };
> -
> - ep@2 {
> - reg = <2>;
> - atmel,fifo-size = <1024>;
> - atmel,nb-banks = <3>;
> - atmel,can-dma;
> - atmel,can-isoc;
> - };
> -
> - ep@3 {
> - reg = <3>;
> - atmel,fifo-size = <1024>;
> - atmel,nb-banks = <2>;
> - atmel,can-dma;
> - atmel,can-isoc;
> - };
> -
> - ep@4 {
> - reg = <4>;
> - atmel,fifo-size = <1024>;
> - atmel,nb-banks = <2>;
> - atmel,can-dma;
> - atmel,can-isoc;
> - };
> -
> - ep@5 {
> - reg = <5>;
> - atmel,fifo-size = <1024>;
> - atmel,nb-banks = <2>;
> - atmel,can-dma;
> - atmel,can-isoc;
> - };
> -
> - ep@6 {
> - reg = <6>;
> - atmel,fifo-size = <1024>;
> - atmel,nb-banks = <2>;
> - atmel,can-dma;
> - atmel,can-isoc;
> - };
> -
> - ep@7 {
> - reg = <7>;
> - atmel,fifo-size = <1024>;
> - atmel,nb-banks = <2>;
> - atmel,can-dma;
> - atmel,can-isoc;
> - };
> -
> - ep@8 {
> - reg = <8>;
> - atmel,fifo-size = <1024>;
> - atmel,nb-banks = <2>;
> - atmel,can-isoc;
> - };
> -
> - ep@9 {
> - reg = <9>;
> - atmel,fifo-size = <1024>;
> - atmel,nb-banks = <2>;
> - atmel,can-isoc;
> - };
> -
> - ep@10 {
> - reg = <10>;
> - atmel,fifo-size = <1024>;
> - atmel,nb-banks = <2>;
> - atmel,can-isoc;
> - };
> -
> - ep@11 {
> - reg = <11>;
> - atmel,fifo-size = <1024>;
> - atmel,nb-banks = <2>;
> - atmel,can-isoc;
> - };
> -
> - ep@12 {
> - reg = <12>;
> - atmel,fifo-size = <1024>;
> - atmel,nb-banks = <2>;
> - atmel,can-isoc;
> - };
> -
> - ep@13 {
> - reg = <13>;
> - atmel,fifo-size = <1024>;
> - atmel,nb-banks = <2>;
> - atmel,can-isoc;
> - };
> -
> - ep@14 {
> - reg = <14>;
> - atmel,fifo-size = <1024>;
> - atmel,nb-banks = <2>;
> - atmel,can-isoc;
> - };
> -
> - ep@15 {
> - reg = <15>;
> - atmel,fifo-size = <1024>;
> - atmel,nb-banks = <2>;
> - atmel,can-isoc;
> - };
> };
>
> usb1: ohci@...000 {
> diff --git a/arch/arm/boot/dts/sama5d3.dtsi b/arch/arm/boot/dts/sama5d3.dtsi
> index f770aace0efd..dfd095f33f95 100644
> --- a/arch/arm/boot/dts/sama5d3.dtsi
> +++ b/arch/arm/boot/dts/sama5d3.dtsi
> @@ -1402,111 +1402,6 @@
> clocks = <&udphs_clk>, <&utmi>;
> clock-names = "pclk", "hclk";
> status = "disabled";
> -
> - ep@0 {
> - reg = <0>;
> - atmel,fifo-size = <64>;
> - atmel,nb-banks = <1>;
> - };
> -
> - ep@1 {
> - reg = <1>;
> - atmel,fifo-size = <1024>;
> - atmel,nb-banks = <3>;
> - atmel,can-dma;
> - atmel,can-isoc;
> - };
> -
> - ep@2 {
> - reg = <2>;
> - atmel,fifo-size = <1024>;
> - atmel,nb-banks = <3>;
> - atmel,can-dma;
> - atmel,can-isoc;
> - };
> -
> - ep@3 {
> - reg = <3>;
> - atmel,fifo-size = <1024>;
> - atmel,nb-banks = <2>;
> - atmel,can-dma;
> - };
> -
> - ep@4 {
> - reg = <4>;
> - atmel,fifo-size = <1024>;
> - atmel,nb-banks = <2>;
> - atmel,can-dma;
> - };
> -
> - ep@5 {
> - reg = <5>;
> - atmel,fifo-size = <1024>;
> - atmel,nb-banks = <2>;
> - atmel,can-dma;
> - };
> -
> - ep@6 {
> - reg = <6>;
> - atmel,fifo-size = <1024>;
> - atmel,nb-banks = <2>;
> - atmel,can-dma;
> - };
> -
> - ep@7 {
> - reg = <7>;
> - atmel,fifo-size = <1024>;
> - atmel,nb-banks = <2>;
> - atmel,can-dma;
> - };
> -
> - ep@8 {
> - reg = <8>;
> - atmel,fifo-size = <1024>;
> - atmel,nb-banks = <2>;
> - };
> -
> - ep@9 {
> - reg = <9>;
> - atmel,fifo-size = <1024>;
> - atmel,nb-banks = <2>;
> - };
> -
> - ep@10 {
> - reg = <10>;
> - atmel,fifo-size = <1024>;
> - atmel,nb-banks = <2>;
> - };
> -
> - ep@11 {
> - reg = <11>;
> - atmel,fifo-size = <1024>;
> - atmel,nb-banks = <2>;
> - };
> -
> - ep@12 {
> - reg = <12>;
> - atmel,fifo-size = <1024>;
> - atmel,nb-banks = <2>;
> - };
> -
> - ep@13 {
> - reg = <13>;
> - atmel,fifo-size = <1024>;
> - atmel,nb-banks = <2>;
> - };
> -
> - ep@14 {
> - reg = <14>;
> - atmel,fifo-size = <1024>;
> - atmel,nb-banks = <2>;
> - };
> -
> - ep@15 {
> - reg = <15>;
> - atmel,fifo-size = <1024>;
> - atmel,nb-banks = <2>;
> - };
> };
>
> usb1: ohci@...000 {
> diff --git a/arch/arm/boot/dts/sama5d4.dtsi b/arch/arm/boot/dts/sama5d4.dtsi
> index 6ab27a7b388d..0ece6b22d287 100644
> --- a/arch/arm/boot/dts/sama5d4.dtsi
> +++ b/arch/arm/boot/dts/sama5d4.dtsi
> @@ -105,124 +105,6 @@
> clocks = <&pmc PMC_TYPE_PERIPHERAL 47>, <&pmc PMC_TYPE_CORE PMC_UTMI>;
> clock-names = "pclk", "hclk";
> status = "disabled";
> -
> - ep@0 {
> - reg = <0>;
> - atmel,fifo-size = <64>;
> - atmel,nb-banks = <1>;
> - };
> -
> - ep@1 {
> - reg = <1>;
> - atmel,fifo-size = <1024>;
> - atmel,nb-banks = <3>;
> - atmel,can-dma;
> - atmel,can-isoc;
> - };
> -
> - ep@2 {
> - reg = <2>;
> - atmel,fifo-size = <1024>;
> - atmel,nb-banks = <3>;
> - atmel,can-dma;
> - atmel,can-isoc;
> - };
> -
> - ep@3 {
> - reg = <3>;
> - atmel,fifo-size = <1024>;
> - atmel,nb-banks = <2>;
> - atmel,can-dma;
> - atmel,can-isoc;
> - };
> -
> - ep@4 {
> - reg = <4>;
> - atmel,fifo-size = <1024>;
> - atmel,nb-banks = <2>;
> - atmel,can-dma;
> - atmel,can-isoc;
> - };
> -
> - ep@5 {
> - reg = <5>;
> - atmel,fifo-size = <1024>;
> - atmel,nb-banks = <2>;
> - atmel,can-dma;
> - atmel,can-isoc;
> - };
> -
> - ep@6 {
> - reg = <6>;
> - atmel,fifo-size = <1024>;
> - atmel,nb-banks = <2>;
> - atmel,can-dma;
> - atmel,can-isoc;
> - };
> -
> - ep@7 {
> - reg = <7>;
> - atmel,fifo-size = <1024>;
> - atmel,nb-banks = <2>;
> - atmel,can-dma;
> - atmel,can-isoc;
> - };
> -
> - ep@8 {
> - reg = <8>;
> - atmel,fifo-size = <1024>;
> - atmel,nb-banks = <2>;
> - atmel,can-isoc;
> - };
> -
> - ep@9 {
> - reg = <9>;
> - atmel,fifo-size = <1024>;
> - atmel,nb-banks = <2>;
> - atmel,can-isoc;
> - };
> -
> - ep@10 {
> - reg = <10>;
> - atmel,fifo-size = <1024>;
> - atmel,nb-banks = <2>;
> - atmel,can-isoc;
> - };
> -
> - ep@11 {
> - reg = <11>;
> - atmel,fifo-size = <1024>;
> - atmel,nb-banks = <2>;
> - atmel,can-isoc;
> - };
> -
> - ep@12 {
> - reg = <12>;
> - atmel,fifo-size = <1024>;
> - atmel,nb-banks = <2>;
> - atmel,can-isoc;
> - };
> -
> - ep@13 {
> - reg = <13>;
> - atmel,fifo-size = <1024>;
> - atmel,nb-banks = <2>;
> - atmel,can-isoc;
> - };
> -
> - ep@14 {
> - reg = <14>;
> - atmel,fifo-size = <1024>;
> - atmel,nb-banks = <2>;
> - atmel,can-isoc;
> - };
> -
> - ep@15 {
> - reg = <15>;
> - atmel,fifo-size = <1024>;
> - atmel,nb-banks = <2>;
> - atmel,can-isoc;
> - };
> };
>
> usb1: ohci@...000 {
>
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