From patchwork Thu Nov 9 21:51:34 2023 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Daniel Golle X-Patchwork-Id: 742675 Received: from lindbergh.monkeyblade.net (lindbergh.monkeyblade.net [23.128.96.19]) (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 0731738DF9; Thu, 9 Nov 2023 21:51:49 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; dkim=none Received: from pidgin.makrotopia.org (pidgin.makrotopia.org [185.142.180.65]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 6581B44B3; Thu, 9 Nov 2023 13:51:49 -0800 (PST) Received: from local by pidgin.makrotopia.org with esmtpsa (TLS1.3:TLS_AES_256_GCM_SHA384:256) (Exim 4.96.2) (envelope-from ) id 1r1Cw6-0003XH-0Q; Thu, 09 Nov 2023 21:51:38 +0000 Date: Thu, 9 Nov 2023 21:51:34 +0000 From: Daniel Golle To: "David S. Miller" , Eric Dumazet , Jakub Kicinski , Paolo Abeni , Rob Herring , Krzysztof Kozlowski , Conor Dooley , Chunfeng Yun , Vinod Koul , Kishon Vijay Abraham I , Felix Fietkau , John Crispin , Sean Wang , Mark Lee , Lorenzo Bianconi , Matthias Brugger , AngeloGioacchino Del Regno , Andrew Lunn , Heiner Kallweit , Russell King , Alexander Couzens , Daniel Golle , Philipp Zabel , netdev@vger.kernel.org, devicetree@vger.kernel.org, linux-kernel@vger.kernel.org, linux-arm-kernel@lists.infradead.org, linux-mediatek@lists.infradead.org, linux-phy@lists.infradead.org Subject: [RFC PATCH 4/8] net: pcs: pcs-mtk-lynxi: allow calling with NULL advertising Message-ID: <0dcc5efc480b640d184046ba405a44bada88f88b.1699565880.git.daniel@makrotopia.org> References: Precedence: bulk X-Mailing-List: devicetree@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Disposition: inline In-Reply-To: Allow calling pcs_config with advertising set to NULL and in this case keep the previously assigned advertisement. Signed-off-by: Daniel Golle --- drivers/net/pcs/pcs-mtk-lynxi.c | 18 ++++++++++++++---- 1 file changed, 14 insertions(+), 4 deletions(-) diff --git a/drivers/net/pcs/pcs-mtk-lynxi.c b/drivers/net/pcs/pcs-mtk-lynxi.c index 6204448d8eac6..1372653c3d422 100644 --- a/drivers/net/pcs/pcs-mtk-lynxi.c +++ b/drivers/net/pcs/pcs-mtk-lynxi.c @@ -81,6 +81,7 @@ struct mtk_pcs_lynxi { phy_interface_t interface; struct phylink_pcs pcs; u32 flags; + int advertise; }; static struct mtk_pcs_lynxi *pcs_to_mtk_pcs_lynxi(struct phylink_pcs *pcs) @@ -121,11 +122,19 @@ static int mtk_pcs_lynxi_config(struct phylink_pcs *pcs, unsigned int neg_mode, unsigned int rgc3, sgm_mode, bmcr; int advertise, link_timer; - advertise = phylink_mii_c22_pcs_encode_advertisement(interface, - advertising); - if (advertise < 0) - return advertise; + if (advertising) { + advertise = phylink_mii_c22_pcs_encode_advertisement(interface, + advertising); + if (advertise < 0) + return advertise; + mpcs->advertise = advertise; + } else { + if (mpcs->advertise < 0) + return -EINVAL; + + advertise = mpcs->advertise; + } /* Clearing IF_MODE_BIT0 switches the PCS to BASE-X mode, and * we assume that fixes it's speed at bitrate = line rate (in * other words, 1000Mbps or 2500Mbps). @@ -299,6 +308,7 @@ struct phylink_pcs *mtk_pcs_lynxi_create(struct device *dev, mpcs->pcs.neg_mode = true; mpcs->pcs.poll = true; mpcs->interface = PHY_INTERFACE_MODE_NA; + mpcs->advertise = -1; return &mpcs->pcs; }