From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from smtp.kernel.org (aws-us-west-2-korg-mail-1.web.codeaurora.org [10.30.226.201]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id E6C20802; Sat, 15 Feb 2025 09:24:45 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=10.30.226.201 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1739611486; cv=none; b=hGewdXT1bzqWMQJJagVX3uHmovE49UJHSfBRef3hl27du2RIieC58G4ltDpYiyblpqJXp3X8WQcIsy2gC4UhzuqNtt2IgB2EUBgIR9/JUbcO00bCjRFyvG8TXKSahdtCMTp2M8Yy1pK7bEgwdjLepTvLBx/64hu3k8D3tigqSzc= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1739611486; c=relaxed/simple; bh=qLlpdx2XZpTJthdJqVOlO6CbXRLajGkyRyRoDG6/yCM=; h=Message-ID:Date:MIME-Version:Subject:To:Cc:References:From: In-Reply-To:Content-Type; b=hboo404Pt06HODNkx6gRmPK4kkXuCKZVphcGGESG+WG7fub6KOcWcCZS4lZR6yXQB0Mm2x5lm/3H7eXbcGLL5+4LOF2efM5MuqIlGS9dNfLAzuoUfZ/CcCtMPUYzsaiZYh+ByXG+4ZuaiH4E8nX3BetLc9J0w48XA85ncHiWcTs= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=kernel.org header.i=@kernel.org header.b=nW8R+LGE; arc=none smtp.client-ip=10.30.226.201 Authentication-Results: smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=kernel.org header.i=@kernel.org header.b="nW8R+LGE" Received: by smtp.kernel.org (Postfix) with ESMTPSA id 8B917C4CEDF; Sat, 15 Feb 2025 09:24:39 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=k20201202; t=1739611485; bh=qLlpdx2XZpTJthdJqVOlO6CbXRLajGkyRyRoDG6/yCM=; h=Date:Subject:To:Cc:References:From:In-Reply-To:From; b=nW8R+LGErP81EkTm12pzbj36ijQzll9GIptmlmba3ws12mcaVoSGp50PONuhy0TOz s6j4giqwOgx08ZfXn5K9ZfFX36DVUwQnMhOcYDDfFJSm0aeFG3+TdEXgq+IBRLDX6K 92SN0CElkDT09ulfUDautEHpgbtEZZBdM/qH0IXRHoHtZtXpUkkX7q7R3KNn7h709b rX7JmFtVyQ+1OyBm+N0HPbeMu/8wM5zp1q23joFUHmIQa1cakvod2pklJ+nhMxvKfd /TkBBcI3NIldzQmNvo+vjJGIPiYbLmLO8o1zcuZ2aPLYDT1fzrBL2UamlOTTYOuE2x 5Q+qcYG+fUYjg== Message-ID: Date: Sat, 15 Feb 2025 10:24:36 +0100 Precedence: bulk X-Mailing-List: devicetree@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 User-Agent: Mozilla Thunderbird Subject: Re: [PATCH v4 6/7] phy: exynos5-usbdrd: subscribe to orientation notifier if required To: Marek Szyprowski , =?UTF-8?Q?Andr=C3=A9_Draszik?= , Vinod Koul , Kishon Vijay Abraham I , Rob Herring , Krzysztof Kozlowski , Conor Dooley , Sylwester Nawrocki , Alim Akhtar Cc: Peter Griffin , Tudor Ambarus , Sam Protsenko , Will McVicker , Roy Luo , kernel-team@android.com, linux-phy@lists.infradead.org, devicetree@vger.kernel.org, linux-kernel@vger.kernel.org, linux-arm-kernel@lists.infradead.org, linux-samsung-soc@vger.kernel.org References: <20241206-gs101-phy-lanes-orientation-phy-v4-0-f5961268b149@linaro.org> <20241206-gs101-phy-lanes-orientation-phy-v4-6-f5961268b149@linaro.org> <3c0b77e6-357d-453e-8b63-4757c3231bde@samsung.com> From: Krzysztof Kozlowski Content-Language: en-US Autocrypt: addr=krzk@kernel.org; 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charset=UTF-8 Content-Transfer-Encoding: 8bit On 14/02/2025 20:30, Marek Szyprowski wrote: > On 06.12.2024 17:31, André Draszik wrote: >> gs101's SS phy needs to be configured differently based on the >> connector orientation, as the SS link can only be established if the >> mux is configured correctly. >> >> The code to handle programming of the mux is in place already, this commit >> now adds the missing pieces to subscribe to the Type-C orientation >> switch event. >> >> Note that for this all to work we rely on the USB controller >> re-initialising us. It should invoke our .exit() upon cable unplug, and >> during cable plug we'll receive the orientation event after which we >> expect our .init() to be called. >> >> Above reinitialisation happens if the DWC3 controller can enter runtime >> suspend automatically. For the DWC3 driver, this is an opt-in: >> echo auto > /sys/devices/.../11110000.usb/power/control >> Once done, things work as long as the UDC is not bound as otherwise it >> stays busy because it doesn't cancel / stop outstanding TRBs. For now >> we have to manually unbind the UDC in that case: >> echo "" > sys/kernel/config/usb_gadget/.../UDC >> >> Note that if the orientation-switch property is missing from the DT, >> the code will behave as before this commit (meaning for gs101 it will >> work in SS mode in one orientation only). Other platforms are not >> affected either way. >> >> Signed-off-by: André Draszik >> >> --- >> v3: >> * drop init to -1 of phy_drd->orientation (Vinod) >> * avoid #ifdef and switch to normal conditional IS_ENABLED() for >> CONFIG_TYPEC >> >> v2: >> * move #include typec_mux.h from parent patch into this one (Peter) >> --- >> drivers/phy/samsung/Kconfig | 1 + >> drivers/phy/samsung/phy-exynos5-usbdrd.c | 56 ++++++++++++++++++++++++++++++++ >> 2 files changed, 57 insertions(+) >> >> diff --git a/drivers/phy/samsung/Kconfig b/drivers/phy/samsung/Kconfig >> index f10afa3d7ff5..fc7bd1088576 100644 >> --- a/drivers/phy/samsung/Kconfig >> +++ b/drivers/phy/samsung/Kconfig >> @@ -80,6 +80,7 @@ config PHY_EXYNOS5_USBDRD >> tristate "Exynos5 SoC series USB DRD PHY driver" >> depends on (ARCH_EXYNOS && OF) || COMPILE_TEST >> depends on HAS_IOMEM >> + depends on TYPEC || (TYPEC=n && COMPILE_TEST) >> depends on USB_DWC3_EXYNOS >> select GENERIC_PHY >> select MFD_SYSCON So that explains why on recent next some of my boards don't boot. I was about to dig over the weekend. > > I've just noticed that the above disables Exynos DRD PHY driver in the > default exynos_defconfig for arm 32bit. Enabling CONFIG_TYPEC is > exynos_defconfig probably is the easiest way to fix this. I will send a > patch then. No, it's just wrong. Nothing here depends on typec and ARMv7 does not have Typec. Best regards, Krzysztof