linux-kernel - Re: [PATCH v2] ARM: tegra: Correct which USB controller has the UTMI pad registers

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Date:	Thu, 02 Apr 2015 18:20:01 +0300
From:	Mikko Perttunen <mikko.perttunen@...si.fi>
To:	Tomeu Vizoso <tomeu.vizoso@...labora.com>,
	linux-tegra@...r.kernel.org
CC:	Rob Herring <robh+dt@...nel.org>, Pawel Moll <pawel.moll@....com>,
	Mark Rutland <mark.rutland@....com>,
	Ian Campbell <ijc+devicetree@...lion.org.uk>,
	Kumar Gala <galak@...eaurora.org>,
	Russell King <linux@....linux.org.uk>,
	Stephen Warren <swarren@...dotorg.org>,
	Thierry Reding <thierry.reding@...il.com>,
	Alexandre Courbot <gnurou@...il.com>,
	devicetree@...r.kernel.org, linux-arm-kernel@...ts.infradead.org,
	linux-kernel@...r.kernel.org
Subject: Re: [PATCH v2] ARM: tegra: Correct which USB controller has the UTMI
 pad registers

Reviewed-by: Mikko Perttunen <mikko.perttunen@...si.fi>

On 04/02/2015 06:00 PM, Tomeu Vizoso wrote:
> It should be the first controller, not the second.
>
> This broke USB after 6261b06 ("regulator: Defer lookup of supply to
> regulator_get"), because it changed the order in which the controllers
> were probed.
>
> The fix for this issue was suggested by Mikko Perttunen.
>
> Signed-off-by: Tomeu Vizoso <tomeu.vizoso@...labora.com>
> Cc: Mikko Perttunen <mikko.perttunen@...si.fi>
> ---
>
> I think that the line numbers should be enough in this case, as I expect this to be merged soon, but just in case I'm sending the same patch with plenty of context.
>
> Regards,
>
> Tomeu
>
> ---
>   arch/arm/boot/dts/tegra124.dtsi | 2 +-
>   1 file changed, 1 insertion(+), 1 deletion(-)
>
> diff --git a/arch/arm/boot/dts/tegra124.dtsi b/arch/arm/boot/dts/tegra124.dtsi
> index cf01c81..cb786a9 100644
> --- a/arch/arm/boot/dts/tegra124.dtsi
> +++ b/arch/arm/boot/dts/tegra124.dtsi
> @@ -821,77 +821,77 @@
>   		compatible = "nvidia,tegra124-usb-phy", "nvidia,tegra30-usb-phy";
>   		reg = <0x0 0x7d000000 0x0 0x4000>,
>   		      <0x0 0x7d000000 0x0 0x4000>;
>   		phy_type = "utmi";
>   		clocks = <&tegra_car TEGRA124_CLK_USBD>,
>   			 <&tegra_car TEGRA124_CLK_PLL_U>,
>   			 <&tegra_car TEGRA124_CLK_USBD>;
>   		clock-names = "reg", "pll_u", "utmi-pads";
>   		resets = <&tegra_car 59>, <&tegra_car 22>;
>   		reset-names = "usb", "utmi-pads";
>   		nvidia,hssync-start-delay = <0>;
>   		nvidia,idle-wait-delay = <17>;
>   		nvidia,elastic-limit = <16>;
>   		nvidia,term-range-adj = <6>;
>   		nvidia,xcvr-setup = <9>;
>   		nvidia,xcvr-lsfslew = <0>;
>   		nvidia,xcvr-lsrslew = <3>;
>   		nvidia,hssquelch-level = <2>;
>   		nvidia,hsdiscon-level = <5>;
>   		nvidia,xcvr-hsslew = <12>;
> +		nvidia,has-utmi-pad-registers;
>   		status = "disabled";
>   	};
>
>   	usb@0,7d004000 {
>   		compatible = "nvidia,tegra124-ehci", "nvidia,tegra30-ehci", "usb-ehci";
>   		reg = <0x0 0x7d004000 0x0 0x4000>;
>   		interrupts = <GIC_SPI 21 IRQ_TYPE_LEVEL_HIGH>;
>   		phy_type = "utmi";
>   		clocks = <&tegra_car TEGRA124_CLK_USB2>;
>   		resets = <&tegra_car 58>;
>   		reset-names = "usb";
>   		nvidia,phy = <&phy2>;
>   		status = "disabled";
>   	};
>
>   	phy2: usb-phy@0,7d004000 {
>   		compatible = "nvidia,tegra124-usb-phy", "nvidia,tegra30-usb-phy";
>   		reg = <0x0 0x7d004000 0x0 0x4000>,
>   		      <0x0 0x7d000000 0x0 0x4000>;
>   		phy_type = "utmi";
>   		clocks = <&tegra_car TEGRA124_CLK_USB2>,
>   			 <&tegra_car TEGRA124_CLK_PLL_U>,
>   			 <&tegra_car TEGRA124_CLK_USBD>;
>   		clock-names = "reg", "pll_u", "utmi-pads";
>   		resets = <&tegra_car 22>, <&tegra_car 22>;
>   		reset-names = "usb", "utmi-pads";
>   		nvidia,hssync-start-delay = <0>;
>   		nvidia,idle-wait-delay = <17>;
>   		nvidia,elastic-limit = <16>;
>   		nvidia,term-range-adj = <6>;
>   		nvidia,xcvr-setup = <9>;
>   		nvidia,xcvr-lsfslew = <0>;
>   		nvidia,xcvr-lsrslew = <3>;
>   		nvidia,hssquelch-level = <2>;
>   		nvidia,hsdiscon-level = <5>;
>   		nvidia,xcvr-hsslew = <12>;
> -		nvidia,has-utmi-pad-registers;
>   		status = "disabled";
>   	};
>
>   	usb@0,7d008000 {
>   		compatible = "nvidia,tegra124-ehci", "nvidia,tegra30-ehci", "usb-ehci";
>   		reg = <0x0 0x7d008000 0x0 0x4000>;
>   		interrupts = <GIC_SPI 97 IRQ_TYPE_LEVEL_HIGH>;
>   		phy_type = "utmi";
>   		clocks = <&tegra_car TEGRA124_CLK_USB3>;
>   		resets = <&tegra_car 59>;
>   		reset-names = "usb";
>   		nvidia,phy = <&phy3>;
>   		status = "disabled";
>   	};
>
>   	phy3: usb-phy@0,7d008000 {
>   		compatible = "nvidia,tegra124-usb-phy", "nvidia,tegra30-usb-phy";
>   		reg = <0x0 0x7d008000 0x0 0x4000>,
>   		      <0x0 0x7d000000 0x0 0x4000>;
>   		phy_type = "utmi";
>

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