From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org Received: from bombadil.infradead.org (bombadil.infradead.org [198.137.202.133]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.lore.kernel.org (Postfix) with ESMTPS id AA5C0C2D0CD for ; Wed, 21 May 2025 13:29:33 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=lists.infradead.org; s=bombadil.20210309; h=Sender:List-Subscribe:List-Help :List-Post:List-Archive:List-Unsubscribe:List-Id:Content-Transfer-Encoding: Content-Type:In-Reply-To:From:References:Cc:To:Subject:MIME-Version:Date: Message-ID:Reply-To:Content-ID:Content-Description:Resent-Date:Resent-From: Resent-Sender:Resent-To:Resent-Cc:Resent-Message-ID:List-Owner; bh=46JwH6aeapAQTywQMFcAygSa29KejNTHWy0TcBjet1Y=; b=yz27POvuyYEQ8hOHMopcsK4xBQ YZdNbOWAFjvpo7YsCLtN1s8NMNyY6WLmQpO/vMz+g1vHPIjl8MTzT/c7h9LhnlooKwUN9qULu8Qsr +rQV6yrZQCv384qT9gASfCdFm0R65RB8rgY3XZVxqjbCdMEnrAsUxf+LwRjP7nL6Kf3aEccsxEEQO lfj0FD2ltvR9YuAzKzbZQ4fePBDCTpSo+pdfa+MYnLD44/nLlxUfc+ytzDS5rZl4tozSEp6pjN0nT fYRDXbzicWa7mO7hkt/NPzYEGmuuiCca9CHhzA0nSoiDiXjgLYCoYVpCcrvcLj2UL0Aey0ItETt+4 DwaPBhEA==; Received: from localhost ([::1] helo=bombadil.infradead.org) by bombadil.infradead.org with esmtp (Exim 4.98.2 #2 (Red Hat Linux)) id 1uHjVd-0000000FwLW-3k91; Wed, 21 May 2025 13:29:25 +0000 Received: from dfw.source.kernel.org ([139.178.84.217]) by bombadil.infradead.org with esmtps (Exim 4.98.2 #2 (Red Hat Linux)) id 1uHj1z-0000000Fr5l-3wj1; Wed, 21 May 2025 12:58:49 +0000 Received: from smtp.kernel.org (transwarp.subspace.kernel.org [100.75.92.58]) by dfw.source.kernel.org (Postfix) with ESMTP id 30A0C5C5942; Wed, 21 May 2025 12:56:30 +0000 (UTC) Received: by smtp.kernel.org (Postfix) with ESMTPSA id D3C3DC4CEE4; Wed, 21 May 2025 12:58:41 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=k20201202; t=1747832327; bh=IeQnLNJstNjynSs1koAm+vW3nzqLzxm3im3la+GCGMU=; h=Date:Subject:To:Cc:References:From:In-Reply-To:From; b=MnoVGq66iFbuFbrV5nf9ftLCWI+aBqdECdHTKaLh0hlPeo6aFLoxw44EjQGFG8A+n IXkHhB6JJOYgBx8k4c2Sn/2F8kFxhpX/hPFNp4daadLKS09YGJzSSs/CdDybSdUCkW 27lCmgeMSYe9Ce3FeQtA85w7ukVqF4/42r2omGZa7Kc/jVBX3JHzD/w6ZrqwUs8hTE tkAkGAIkuOq3koHntDsetHtM4NjvcH34nAM48hZxjQGZ/PPJjMect9y0cPbD4a6p6S AqlQP6iYpH0XIMGzzB/KRaHMs5H+9wCCCePODnR5qdEVwbe270S/Tss4aZfgtJGyGH LVmWsO/Jdi6aw== Message-ID: Date: Wed, 21 May 2025 14:58:40 +0200 MIME-Version: 1.0 User-Agent: Mozilla Thunderbird Subject: Re: [PATCH v2 2/2] phy: exyons5-usbdrd: support HS phy for ExynosAutov920 To: Neil Armstrong , Pritam Manohar Sutar , vkoul@kernel.org, kishon@kernel.org, robh@kernel.org, krzk+dt@kernel.org, conor+dt@kernel.org, alim.akhtar@samsung.com, andre.draszik@linaro.org, peter.griffin@linaro.org, kauschluss@disroot.org, m.szyprowski@samsung.com, s.nawrocki@samsung.com Cc: 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, rosa.pila@samsung.com, dev.tailor@samsung.com, faraz.ata@samsung.com, muhammed.ali@samsung.com, selvarasu.g@samsung.com References: <20250516102650.2144487-1-pritam.sutar@samsung.com> <20250516102650.2144487-3-pritam.sutar@samsung.com> <000101dbca1d$78ca5570$6a5f0050$@samsung.com> <42ddb5c6-0f17-41ed-8bd4-ab58880515b1@linaro.org> From: Krzysztof Kozlowski Content-Language: en-US Autocrypt: addr=krzk@kernel.org; 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charset=UTF-8 Content-Transfer-Encoding: 7bit X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20250521_055848_069387_343FA698 X-CRM114-Status: UNSURE ( 9.05 ) X-CRM114-Notice: Please train this message. X-BeenThere: linux-arm-kernel@lists.infradead.org X-Mailman-Version: 2.1.34 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Sender: "linux-arm-kernel" Errors-To: linux-arm-kernel-bounces+linux-arm-kernel=archiver.kernel.org@lists.infradead.org On 21/05/2025 14:56, 'Neil Armstrong' wrote: >>> >>> >>>> + }, { >>>> + .compatible = "samsung,exynosautov920-usb31drd-phy", >>>> + .data = &exynosautov920_usb31drd_phy >>> >>> All those new ops are only called when matching this compatible, it it really >>> necessary to check the version ? is there "samsung,exynosautov920-usb31drd- >>> phy" PHYs with version different from 3 in the wild ? >>> >> >> This SoC has a single USB 3.1 DRD combo phy of version v400 (major : minor versions) and three USB2.0 >> DRD phy v303 (major : minor versions) controllers those only support the UTMI+ interface. Currently, >> supporting only v303 phys in this patch-set, and planning v400 phy later (soon). >> >> Yes, there's v400 phy version that is different from v303 phy. Hence, phy version check is needed to support both the phys for same compatible. > > OK so add 2 compatibles, one for the usb31drd and one for the usb2drd since those are 2 difference hardware. ...unless this is fully detectable hardware, then use fallbacks and only one compatible in the driver. Best regards, Krzysztof