From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from mail-qv1-f45.google.com (mail-qv1-f45.google.com [209.85.219.45]) (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 54CA818A93A for ; Wed, 3 Jul 2024 18:03:12 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=209.85.219.45 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1720029793; cv=none; b=gOI6geYnbD3L7me6zm+zwJgrmpvRCAkZAQCNnVNC8rNZkLT+VcnZQAZyBEUqZjB7qu25uaoZn7wtF/hKqr+pERmVRnlhTwhhmjJ94g6Wf/yH1s9uPz8897CHi2pNYbIGsJ2vfCvfdf7/Jk+Sjpn9P3V8FXu9d2U3JfSZxPewh6k= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1720029793; c=relaxed/simple; bh=Q4fcJuMuuColg1PAnyLHGWK7e1qMgpriLHyJOZRkeB8=; h=From:To:Cc:Subject:Date:Message-Id:In-Reply-To:References: Content-Type; b=X6htPBeR3D/35uGuWlmvwm6XMTp5DPGflykNXDf+/h2Y5Kp4vPxCKrLBUQZmOpPGcMKga3dDVIrvi2+KIRysc2b7ReBBuAx5ym69ZP8Fn5lLxwiudXmw0szbsYKE2tO2uXIm59RJvAF5zP6ZMxIC3DQ4XhgubT4n2sTF11B/w0k= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dmarc=pass (p=quarantine dis=none) header.from=broadcom.com; spf=fail smtp.mailfrom=broadcom.com; dkim=pass (1024-bit key) header.d=broadcom.com header.i=@broadcom.com header.b=KX42qq8s; arc=none smtp.client-ip=209.85.219.45 Authentication-Results: smtp.subspace.kernel.org; dmarc=pass (p=quarantine dis=none) header.from=broadcom.com Authentication-Results: smtp.subspace.kernel.org; spf=fail smtp.mailfrom=broadcom.com Authentication-Results: smtp.subspace.kernel.org; dkim=pass (1024-bit key) header.d=broadcom.com header.i=@broadcom.com header.b="KX42qq8s" Received: by mail-qv1-f45.google.com with SMTP id 6a1803df08f44-6b4fec3a1a7so29245586d6.2 for ; Wed, 03 Jul 2024 11:03:11 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=broadcom.com; s=google; t=1720029791; x=1720634591; darn=vger.kernel.org; h=references:in-reply-to:message-id:date:subject:cc:to:from:from:to :cc:subject:date:message-id:reply-to; bh=DZ9I9djA/oGsf/Z+VPgDeCCflDkZBxeCaA01He0BUCI=; b=KX42qq8sLOB473LZjs+7vbbHj+riobOsgSlWOP34qtWrnB1ffRdaXFb+s9hyNDGRAX 0Iij1XwZ04xxsfdo7qXIs9CL5orfu82SuUwtSMrl/DV8aLNYC+qHzie2BNx9eFTugs5B 0SDMnEsH2jDfNm2OzYnb8XRzxHbOTeeUD0CD0= X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20230601; t=1720029791; x=1720634591; h=references:in-reply-to:message-id:date:subject:cc:to:from :x-gm-message-state:from:to:cc:subject:date:message-id:reply-to; bh=DZ9I9djA/oGsf/Z+VPgDeCCflDkZBxeCaA01He0BUCI=; b=gIHnjOieGI7QGyDw5f+7Zvc9vlN4RwqNF6ufSnmgF+BSpKwQD0dqOG8yCJ1cmuvuxE HL6F93KvWS1HHRnVFXno6cVIHQiPj3tQbSrwgw7f55PsI/PgHxbR12sf6dk646p1rDr6 Pcj2vlbxVTHoQKBe95QVFUer9Z4eLD7Yjmvdds4FXFgvdKypFFPr2FsfuMjeQMjCIKzu 8uT9pWzCaouTN5qPAsCYnHdXL3Sw95l27qBJ4Bd0wLOR+q+ujB6j8yys60yzd7FjEJq6 GT5JZc94e/URwhS6tOmhh26YWGAUzyFMUwUO9Jz+Yxhg7IqEdws0xUIp75eTHJq7EGYC c9zw== X-Forwarded-Encrypted: i=1; AJvYcCWBrgnVy/nm2qrJGi1jeADUoiq0cEYLu8TnwTQdKPusohSot53fH03MJ2SwVT2eo+HWY57lKIw5coOKb+EOEnnb03s4rdflJtl8F5Si X-Gm-Message-State: AOJu0YyjO7EqjsXnICmD1fdKYnHmIqM/4a4T8q0iBBPgn5ISGfK9hXZa z+V6du6i4rCN7BSKIXrsGIgEGGUhPxB2SSvEoxaUc6ehsLhdpPrc69lU6LczDg== X-Google-Smtp-Source: AGHT+IGDIenXr4YjMW4GwoxRbUQJpTRRQmg2sDYstsvk38qnq4s2NTVKbFtCbvE+st+pQmHWAmeV/Q== X-Received: by 2002:a05:6214:2521:b0:6b5:238:2e42 with SMTP id 6a1803df08f44-6b5b719d2bbmr155619166d6.40.1720029791001; Wed, 03 Jul 2024 11:03:11 -0700 (PDT) Received: from stbsrv-and-01.and.broadcom.net ([192.19.144.250]) by smtp.gmail.com with ESMTPSA id 6a1803df08f44-6b59e5f1a6dsm55589626d6.83.2024.07.03.11.03.09 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Wed, 03 Jul 2024 11:03:10 -0700 (PDT) From: Jim Quinlan To: linux-pci@vger.kernel.org, Nicolas Saenz Julienne , Bjorn Helgaas , Lorenzo Pieralisi , Cyril Brulebois , Stanimir Varbanov , bcm-kernel-feedback-list@broadcom.com, jim2101024@gmail.com, james.quinlan@broadcom.com Cc: Florian Fainelli , Lorenzo Pieralisi , =?UTF-8?q?Krzysztof=20Wilczy=C5=84ski?= , Rob Herring , Philipp Zabel , linux-rpi-kernel@lists.infradead.org (moderated list:BROADCOM BCM2711/BCM2835 ARM ARCHITECTURE), linux-arm-kernel@lists.infradead.org (moderated list:BROADCOM BCM2711/BCM2835 ARM ARCHITECTURE), linux-kernel@vger.kernel.org (open list) Subject: [PATCH v2 04/12] PCI: brcmstb: Use swinit reset if available Date: Wed, 3 Jul 2024 14:02:48 -0400 Message-Id: <20240703180300.42959-5-james.quinlan@broadcom.com> X-Mailer: git-send-email 2.17.1 In-Reply-To: <20240703180300.42959-1-james.quinlan@broadcom.com> References: <20240703180300.42959-1-james.quinlan@broadcom.com> Content-Type: multipart/signed; protocol="application/pkcs7-signature"; micalg=sha-256; boundary="000000000000b8c664061c5ba4a6" Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: --000000000000b8c664061c5ba4a6 The 7712 SOC adds a software init reset device for the PCIe HW. If found in the DT node, use it. Signed-off-by: Jim Quinlan --- drivers/pci/controller/pcie-brcmstb.c | 19 +++++++++++++++++++ 1 file changed, 19 insertions(+) diff --git a/drivers/pci/controller/pcie-brcmstb.c b/drivers/pci/controller/pcie-brcmstb.c index 4104c3668fdb..69926ee5c961 100644 --- a/drivers/pci/controller/pcie-brcmstb.c +++ b/drivers/pci/controller/pcie-brcmstb.c @@ -266,6 +266,7 @@ struct brcm_pcie { struct reset_control *rescal; struct reset_control *perst_reset; struct reset_control *bridge; + struct reset_control *swinit; int num_memc; u64 memc_size[PCIE_BRCM_MAX_MEMC]; u32 hw_rev; @@ -1626,6 +1627,13 @@ static int brcm_pcie_probe(struct platform_device *pdev) dev_err(&pdev->dev, "could not enable clock\n"); return ret; } + + pcie->swinit = devm_reset_control_get_optional_exclusive(&pdev->dev, "swinit"); + if (IS_ERR(pcie->swinit)) { + ret = dev_err_probe(&pdev->dev, PTR_ERR(pcie->swinit), + "failed to get 'swinit' reset\n"); + goto clk_out; + } pcie->rescal = devm_reset_control_get_optional_shared(&pdev->dev, "rescal"); if (IS_ERR(pcie->rescal)) { ret = PTR_ERR(pcie->rescal); @@ -1637,6 +1645,17 @@ static int brcm_pcie_probe(struct platform_device *pdev) goto clk_out; } + ret = reset_control_assert(pcie->swinit); + if (ret) { + dev_err_probe(&pdev->dev, ret, "could not assert reset 'swinit'\n"); + goto clk_out; + } + ret = reset_control_deassert(pcie->swinit); + if (ret) { + dev_err(&pdev->dev, "could not de-assert reset 'swinit' after asserting\n"); + goto clk_out; + } + ret = reset_control_reset(pcie->rescal); if (ret) { dev_err(&pdev->dev, "failed to deassert 'rescal'\n"); -- 2.17.1 --000000000000b8c664061c5ba4a6 Content-Type: application/pkcs7-signature; name="smime.p7s" Content-Transfer-Encoding: base64 Content-Disposition: attachment; filename="smime.p7s" Content-Description: S/MIME Cryptographic Signature MIIQbgYJKoZIhvcNAQcCoIIQXzCCEFsCAQExDzANBglghkgBZQMEAgEFADALBgkqhkiG9w0BBwGg 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