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 2FB93C83F1D for ; Tue, 15 Jul 2025 10:38:44 +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-Type: Content-Transfer-Encoding:MIME-Version:References:In-Reply-To:Message-ID:Date :Subject:Cc:To:From:Reply-To:Content-ID:Content-Description:Resent-Date: Resent-From:Resent-Sender:Resent-To:Resent-Cc:Resent-Message-ID:List-Owner; bh=cIPn1JdmQUBAudYGWKwQBBR2ZjhtmhuYOGeF5hB/XP8=; b=sHxEHnARfnJMD1rKyjSy6Ocp7T mXLWE484cqvaOsjp9bIM/4CC08WhBlwbECLlD6QkXD5e7jXtkEh2DtR8BcnF6ph4XOuYSMG6WJVZG yH/60MKz4Ha3xcgmOX3On4PbzJPUWN64iEuDDDKK/q6Ch5V14k6IYLMFEN2Iv2dWsrI15q/fjLJIF V8AXkQZU9xaJKRWll3VspwUHv8wW5FA0KJZELV+nSDDST9ubLGfGEvH+R1HlHkxGkIusCgrom6zjN MdP5jm19Grd7ah2PTQQ+lE9RT9YfFBjf7O4+x8Vo4iK8Tsay+0RSId4ljhAV1Is2zNCZbAKLafe55 +AQ0Yvgg==; Received: from localhost ([::1] helo=bombadil.infradead.org) by bombadil.infradead.org with esmtp (Exim 4.98.2 #2 (Red Hat Linux)) id 1ubd3V-00000004rFt-2X07; Tue, 15 Jul 2025 10:38:37 +0000 Received: from gloria.sntech.de ([185.11.138.130]) by bombadil.infradead.org with esmtps (Exim 4.98.2 #2 (Red Hat Linux)) id 1ubd0y-00000004qsj-0YUs; Tue, 15 Jul 2025 10:36:02 +0000 DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=sntech.de; s=gloria202408; h=Content-Type:Content-Transfer-Encoding:MIME-Version: References:In-Reply-To:Message-ID:Date:Subject:Cc:To:From:Reply-To; bh=cIPn1JdmQUBAudYGWKwQBBR2ZjhtmhuYOGeF5hB/XP8=; b=14TGwTJ8i2Mh5u5WG7VtC3VE23 YFqP6TUaqtH3GFuLFFL7UrSspk3fVBByN4gsW70nMbjqCUovWeMbDyltzB83dS1IFVG0m5945ngjZ BuVB1Rp76b99J3JpEGR0olUIaAY5UQ30wjwa/ZzUKuYS1mVSnc+Iq3NRN8l5YhXceZxAC8UjvwM0v TTy+p+lGttVM88UHbqHNGYjTSjirYsOWteKkcFBBVVMcy3Vq1hqz8zd+5bwb87Dw8Id9bHxyOwHkI 7xdQg6RmqEDmq93oMFMXrbUZBMUNl1n/Iv9Dcpbc9o39WGUCsEXeE12Tw588LxpqE5vN0oqN7tQLs 2L81kG0A==; Received: from [194.95.143.137] (helo=phil.localnet) by gloria.sntech.de with esmtpsa (TLS1.3) tls TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384 (Exim 4.94.2) (envelope-from ) id 1ubd0o-00009u-Be; Tue, 15 Jul 2025 12:35:50 +0200 From: Heiko Stuebner To: linux-rockchip@lists.infradead.org, John Keeping Cc: John Keeping , Vinod Koul , Kishon Vijay Abraham I , Thinh Nguyen , Greg Kroah-Hartman , Sebastian Reichel , Nicolas Frattaroli , Neil Armstrong , linux-usb@vger.kernel.org, linux-phy@lists.infradead.org, linux-arm-kernel@lists.infradead.org, linux-kernel@vger.kernel.org Subject: Re: [RFC/PATCH 2/2] phy: rockchip: usbdp: implement .set_mode Date: Tue, 15 Jul 2025 12:35:47 +0200 Message-ID: <3981131.iZASKD2KPV@phil> In-Reply-To: <20250710152252.2532020-3-jkeeping@inmusicbrands.com> References: <20250710152252.2532020-1-jkeeping@inmusicbrands.com> <20250710152252.2532020-3-jkeeping@inmusicbrands.com> MIME-Version: 1.0 Content-Transfer-Encoding: quoted-printable Content-Type: text/plain; charset="utf-8" X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20250715_033600_377078_BD99B157 X-CRM114-Status: GOOD ( 21.30 ) 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 Hi John, Am Donnerstag, 10. Juli 2025, 17:22:50 Mitteleurop=C3=A4ische Sommerzeit sc= hrieb John Keeping: > When the orientation of a type C cable changes, usbdp set the new > configuration in its internal state but does not write this to the > hardware. >=20 > Make use of phy_ops::set_mode to write this new state. This should be > called by the USB controller when it is notified of a role change > (assuming it is acting as the role switch) and will be called at a point > when the controller does not expect the phy to be operating normally. >=20 > Signed-off-by: John Keeping with the comments from Ondrej in [0] the whole thing seems to be slightly more complex [0] https://patchwork.kernel.org/project/linux-arm-kernel/patch/20250225184= 519.3586926-3-heiko@sntech.de/ > --- > drivers/phy/rockchip/phy-rockchip-usbdp.c | 14 ++++++++++++++ > 1 file changed, 14 insertions(+) >=20 > diff --git a/drivers/phy/rockchip/phy-rockchip-usbdp.c b/drivers/phy/rock= chip/phy-rockchip-usbdp.c > index c066cc0a7b4f1..00368fb09307a 100644 > --- a/drivers/phy/rockchip/phy-rockchip-usbdp.c > +++ b/drivers/phy/rockchip/phy-rockchip-usbdp.c > @@ -1335,9 +1335,23 @@ static int rk_udphy_usb3_phy_exit(struct phy *phy) > return 0; > } > =20 > +static int rk_udphy_usb3_phy_set_mode(struct phy *phy, enum phy_mode mod= e, int submode) > +{ > + struct rk_udphy *udphy =3D phy_get_drvdata(phy); > + int ret =3D 0; > + > + mutex_lock(&udphy->mutex); > + if (udphy->mode !=3D UDPHY_MODE_NONE) > + ret =3D rk_udphy_init(udphy); > + mutex_unlock(&udphy->mutex); > + > + return ret; > +} > + > static const struct phy_ops rk_udphy_usb3_phy_ops =3D { > .init =3D rk_udphy_usb3_phy_init, > .exit =3D rk_udphy_usb3_phy_exit, > + .set_mode =3D rk_udphy_usb3_phy_set_mode, > .owner =3D THIS_MODULE, > }; > =20 >=20 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 684D1C83F1D for ; Tue, 15 Jul 2025 10:36:04 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=lists.infradead.org; s=bombadil.20210309; h=Sender: Content-Transfer-Encoding:Content-Type:List-Subscribe:List-Help:List-Post: List-Archive:List-Unsubscribe:List-Id:MIME-Version:References:In-Reply-To: Message-ID:Date:Subject:Cc:To:From:Reply-To:Content-ID:Content-Description: Resent-Date:Resent-From:Resent-Sender:Resent-To:Resent-Cc:Resent-Message-ID: List-Owner; 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Tue, 15 Jul 2025 12:35:50 +0200 From: Heiko Stuebner To: linux-rockchip@lists.infradead.org, John Keeping Subject: Re: [RFC/PATCH 2/2] phy: rockchip: usbdp: implement .set_mode Date: Tue, 15 Jul 2025 12:35:47 +0200 Message-ID: <3981131.iZASKD2KPV@phil> In-Reply-To: <20250710152252.2532020-3-jkeeping@inmusicbrands.com> References: <20250710152252.2532020-1-jkeeping@inmusicbrands.com> <20250710152252.2532020-3-jkeeping@inmusicbrands.com> MIME-Version: 1.0 X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20250715_033600_377078_BD99B157 X-CRM114-Status: GOOD ( 21.30 ) X-BeenThere: linux-rockchip@lists.infradead.org X-Mailman-Version: 2.1.34 Precedence: list List-Id: Upstream kernel work for Rockchip platforms List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: Kishon Vijay Abraham I , Neil Armstrong , John Keeping , Greg Kroah-Hartman , linux-usb@vger.kernel.org, Sebastian Reichel , linux-kernel@vger.kernel.org, Vinod Koul , Thinh Nguyen , linux-phy@lists.infradead.org, linux-arm-kernel@lists.infradead.org Content-Type: text/plain; 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