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([2a0a:ef40:eb0:c501:2c4e:44f:2449:8978]) by smtp.gmail.com with ESMTPSA id 5b1f17b1804b1-4a1f2cc809csm3538555e9.8.2026.10.19.09.32.44 (version=TLS1_3 cipher=TLS_AES_128_GCM_SHA256 bits=128/128); Mon, 19 Oct 2026 09:32:44 -0700 (PDT) Message-ID: Date: Mon, 19 Oct 2026 17:32:43 +0100 X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Post: List-Help: List-Subscribe: List-Unsubscribe: List-Owner: Precedence: list MIME-Version: 1.0 User-Agent: Mozilla Thunderbird Subject: Re: [PATCH 06/10] ARM: dts: omap: dm816x: Update USB node To: Andreas Kemnade Cc: Ettore Chimenti , Paul Walmsley , Aaro Koskinen , Kevin Hilman , Roger Quadros , Tony Lindgren , Russell King , Rob Herring , Krzysztof Kozlowski , Conor Dooley , Christopher Obbard , Linus Walleij , Rouven Czerwinski , linux-omap@vger.kernel.org, linux-arm-kernel@lists.infradead.org, linux-kernel@vger.kernel.org, devicetree@vger.kernel.org, linux-gpio@vger.kernel.org References: <20261016-patch-ektor5-dm8168-dts-v1-0-b4ce30217028@linaro.org> <20261016-patch-ektor5-dm8168-dts-v1-6-b4ce30217028@linaro.org> <20261017083957.7c2696f5@kemnade.info> <8a8313f1-d525-45d3-9044-b5f7a00b256d@linaro.org> <20261019154503.2111a89c@kemnade.info> Content-Language: en-GB From: Andrew Goodbody In-Reply-To: <20261019154503.2111a89c@kemnade.info> Content-Type: text/plain; charset=UTF-8; format=flowed Content-Transfer-Encoding: 7bit On 19/10/2026 14:45, Andreas Kemnade wrote: > On Mon, 19 Oct 2026 10:36:37 +0100 > Andrew Goodbody wrote: > >> On 17/10/2026 07:39, Andreas Kemnade wrote: >>> On Fri, 16 Oct 2026 16:41:21 +0200 >>> Ettore Chimenti wrote: >>> >>>> From: Andrew Goodbody >>>> >>>> USB node was not working correctly with DMA enabled as the supporting >>>> code had been updated without updating this SoC's device tree. Bring the >>>> device tree more up to date so that it works with DMA enabled. >>>> >>>> Signed-off-by: Andrew Goodbody >>>> Signed-off-by: Ettore Chimenti >>>> --- >>>> arch/arm/boot/dts/ti/omap/dm816x.dtsi | 41 +++++++++++++++++++++-------------- >>>> 1 file changed, 25 insertions(+), 16 deletions(-) >>>> >>>> diff --git a/arch/arm/boot/dts/ti/omap/dm816x.dtsi b/arch/arm/boot/dts/ti/omap/dm816x.dtsi >>>> index 7f3ef3a00ab8..5be9efc60785 100644 >>>> --- a/arch/arm/boot/dts/ti/omap/dm816x.dtsi >>>> +++ b/arch/arm/boot/dts/ti/omap/dm816x.dtsi >>>> @@ -574,18 +574,27 @@ uart3: serial@48024000 { >>>> }; >>>> >>>> /* NOTE: USB needs a transceiver driver for phys to work */ >>>> - usb: usb_otg_hs@47401000 { >>>> - compatible = "ti,am33xx-usb"; >>>> - reg = <0x47401000 0x400000>; >>>> - ranges; >>>> + usb: target-module@47400000 { >>>> + compatible = "ti,sysc-omap4", "ti,sysc"; >>>> + ti,hwmods = "usb_otg_hs"; >>> >>> Why do we still need this? It is depcrecated. >>> >>> Regards, >>> Andreas >> >> Without that line we get the following on boot and USB does not work >> >> [ 0.110148] omap_hwmod: usb_otg_hs: no dt node > > It is somewhat odd to use both ti-sysc and hwmod. It looks like a > half conversion. > > For an example how usb_otg_hs was converted to ti-sysc for omap3, look at > 42a79edd4a3dc1bb8e89fd2849f9e8e1e1c13977...v6.1-rc1 > > It has no hwmod stuff left. > > Regards, > Andreas Thank you. That was the pointer I needed to sort this out. Andrew