From nobody Mon Feb 9 15:26:45 2026 Received: from layka.disroot.org (layka.disroot.org [178.21.23.139]) (using TLSv1.2 with cipher ECDHE-RSA-AES128-GCM-SHA256 (128/128 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id 3A2AA239E97; Tue, 4 Nov 2025 15:17:36 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=178.21.23.139 ARC-Seal: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1762269458; cv=none; b=czGafy45iKUF1SlpAoyvVuOcbplRepCa/kS78BNNmanzNCskIX7d8O3vMu9CEvGb6ubz5+YHMXNtWDOztuTMgxo/PiK23Eum1ATNoQ+x+VI7iKWTFi1vXBWuZcPmyk0mrcK7UyPvvCWAg/YnJzxFa6ajw9tRi2geCxyThaEga4Q= ARC-Message-Signature: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1762269458; c=relaxed/simple; bh=HFWNC322p9MDNILlse/9+tk0gmWbj3GRTnHZZzpy53c=; h=From:To:Cc:Subject:Date:Message-ID:In-Reply-To:References: MIME-Version; b=CYtXtskvGCS7x3/oL3J5WWroY/R7Pq+1dSUWvP2D6p7ExoyoAJbuoFck7tV4CfCFCZepFURCfUbSxt7L+FZz/oQkqQmVxo/uVl2TqkZfdlINU+PdJtJgbhsbYXRfjvQS314lXSHO7/2+ALkhLAt0wxHqEnmQAP0sGuP5gnZaQyE= ARC-Authentication-Results: i=1; smtp.subspace.kernel.org; dmarc=pass (p=reject dis=none) header.from=disroot.org; spf=pass smtp.mailfrom=disroot.org; dkim=pass (2048-bit key) header.d=disroot.org header.i=@disroot.org header.b=W5+ISS6B; arc=none smtp.client-ip=178.21.23.139 Authentication-Results: smtp.subspace.kernel.org; dmarc=pass (p=reject dis=none) header.from=disroot.org Authentication-Results: smtp.subspace.kernel.org; spf=pass smtp.mailfrom=disroot.org Authentication-Results: smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=disroot.org header.i=@disroot.org header.b="W5+ISS6B" Received: from mail01.disroot.lan (localhost [127.0.0.1]) by disroot.org (Postfix) with ESMTP id 82FB420EF2; Tue, 4 Nov 2025 16:17:35 +0100 (CET) X-Virus-Scanned: SPAM Filter at disroot.org Received: from layka.disroot.org ([127.0.0.1]) by localhost (disroot.org [127.0.0.1]) (amavis, port 10024) with ESMTP id tb92WTFfUfMD; Tue, 4 Nov 2025 16:17:34 +0100 (CET) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=disroot.org; s=mail; t=1762269454; bh=HFWNC322p9MDNILlse/9+tk0gmWbj3GRTnHZZzpy53c=; h=From:To:Cc:Subject:Date:In-Reply-To:References; b=W5+ISS6Bb/sAD6fKIM3QYmL6uvkSBeM1y0XhLd4W5Xrbg5RGkOfzX2OVqvbGBuULb ML1NVrapw+QesEQ5/kbTWiHb4fC5bU5lOLT3llkTghVrCWhVJKTRRxQL64B1PD7Rbu WgUAWz6hK103nl2/L46a0iSb7iaa25CucvwzaBWQftPQpXjc/N+bpLJLUZDBtciu0j vUshUkkIB3Qe8ZHWpwrjcNZlZrZEF8UIp4ZvEltKzfPUgXW273sKRgpZUROujVFbs7 He+ea4kuzVKFmXbwLrrAxm2CYkO3fyFcpFCzd/CmkX8z+N5RzjIEfbwdcA+Cc0ANo4 ikqu8XFh0D0+g== From: Yao Zi To: Andrew Lunn , "David S. Miller" , Eric Dumazet , Jakub Kicinski , Paolo Abeni , Yanteng Si , Huacai Chen , "Russell King (Oracle)" , Philipp Stanner , Tiezhu Yang , Qunqin Zhao , Yao Zi , Vladimir Oltean , Furong Xu <0x1207@gmail.com>, Kunihiko Hayashi , Jacob Keller Cc: netdev@vger.kernel.org, linux-kernel@vger.kernel.org Subject: [PATCH net-next v3 2/3] net: stmmac: loongson: Use generic PCI suspend/resume routines Date: Tue, 4 Nov 2025 15:16:46 +0000 Message-ID: <20251104151647.3125-3-ziyao@disroot.org> In-Reply-To: <20251104151647.3125-1-ziyao@disroot.org> References: <20251104151647.3125-1-ziyao@disroot.org> Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Transfer-Encoding: quoted-printable Content-Type: text/plain; charset="utf-8" Convert glue driver for Loongson DWMAC controller to use the generic platform suspend/resume routines for PCI controllers, instead of implementing its own one. Signed-off-by: Yao Zi --- drivers/net/ethernet/stmicro/stmmac/Kconfig | 4 +++ .../ethernet/stmicro/stmmac/dwmac-loongson.c | 36 ++----------------- 2 files changed, 7 insertions(+), 33 deletions(-) diff --git a/drivers/net/ethernet/stmicro/stmmac/Kconfig b/drivers/net/ethe= rnet/stmicro/stmmac/Kconfig index 1350f16f7138..7ec7c7630c41 100644 --- a/drivers/net/ethernet/stmicro/stmmac/Kconfig +++ b/drivers/net/ethernet/stmicro/stmmac/Kconfig @@ -367,6 +367,8 @@ config DWMAC_INTEL This selects the Intel platform specific bus support for the stmmac driver. This driver is used for Intel Quark/EHL/TGL. =20 +if STMMAC_LIBPCI + config DWMAC_LOONGSON tristate "Loongson PCI DWMAC support" default MACH_LOONGSON64 @@ -376,6 +378,8 @@ config DWMAC_LOONGSON This selects the LOONGSON PCI bus support for the stmmac driver, Support for ethernet controller on Loongson-2K1000 SoC and LS7A1000 bri= dge. =20 +endif + config STMMAC_PCI tristate "STMMAC PCI bus support" depends on STMMAC_ETH && PCI diff --git a/drivers/net/ethernet/stmicro/stmmac/dwmac-loongson.c b/drivers= /net/ethernet/stmicro/stmmac/dwmac-loongson.c index 2a3ac0136cdb..584dc4ff8320 100644 --- a/drivers/net/ethernet/stmicro/stmmac/dwmac-loongson.c +++ b/drivers/net/ethernet/stmicro/stmmac/dwmac-loongson.c @@ -8,6 +8,7 @@ #include #include #include "stmmac.h" +#include "stmmac_libpci.h" #include "dwmac_dma.h" #include "dwmac1000.h" =20 @@ -525,37 +526,6 @@ static int loongson_dwmac_fix_reset(struct stmmac_priv= *priv, void __iomem *ioad 10000, 2000000); } =20 -static int loongson_dwmac_suspend(struct device *dev, void *bsp_priv) -{ - struct pci_dev *pdev =3D to_pci_dev(dev); - int ret; - - ret =3D pci_save_state(pdev); - if (ret) - return ret; - - pci_disable_device(pdev); - pci_wake_from_d3(pdev, true); - return 0; -} - -static int loongson_dwmac_resume(struct device *dev, void *bsp_priv) -{ - struct pci_dev *pdev =3D to_pci_dev(dev); - int ret; - - pci_restore_state(pdev); - pci_set_power_state(pdev, PCI_D0); - - ret =3D pci_enable_device(pdev); - if (ret) - return ret; - - pci_set_master(pdev); - - return 0; -} - static int loongson_dwmac_probe(struct pci_dev *pdev, const struct pci_dev= ice_id *id) { struct plat_stmmacenet_data *plat; @@ -600,8 +570,8 @@ static int loongson_dwmac_probe(struct pci_dev *pdev, c= onst struct pci_device_id plat->bsp_priv =3D ld; plat->setup =3D loongson_dwmac_setup; plat->fix_soc_reset =3D loongson_dwmac_fix_reset; - plat->suspend =3D loongson_dwmac_suspend; - plat->resume =3D loongson_dwmac_resume; + plat->suspend =3D stmmac_pci_plat_suspend; + plat->resume =3D stmmac_pci_plat_resume; ld->dev =3D &pdev->dev; ld->loongson_id =3D readl(res.addr + GMAC_VERSION) & 0xff; =20 --=20 2.51.2