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 vger.kernel.org (vger.kernel.org [23.128.96.18]) by smtp.lore.kernel.org (Postfix) with ESMTP id 5339AC433FE for ; Wed, 16 Feb 2022 07:18:07 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S229948AbiBPHSR (ORCPT ); Wed, 16 Feb 2022 02:18:17 -0500 Received: from gmail-smtp-in.l.google.com ([23.128.96.19]:38236 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S229875AbiBPHSF (ORCPT ); Wed, 16 Feb 2022 02:18:05 -0500 Received: from inva020.nxp.com (inva020.nxp.com [92.121.34.13]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 640AFC7D5A; Tue, 15 Feb 2022 23:17:49 -0800 (PST) Received: from inva020.nxp.com (localhost [127.0.0.1]) by inva020.eu-rdc02.nxp.com (Postfix) with ESMTP id AC1561A02CD; Wed, 16 Feb 2022 07:52:54 +0100 (CET) Received: from aprdc01srsp001v.ap-rdc01.nxp.com (aprdc01srsp001v.ap-rdc01.nxp.com [165.114.16.16]) by inva020.eu-rdc02.nxp.com (Postfix) with ESMTP id 734931A02E9; Wed, 16 Feb 2022 07:52:54 +0100 (CET) Received: from localhost.localdomain (shlinux2.ap.freescale.net [10.192.224.44]) by aprdc01srsp001v.ap-rdc01.nxp.com (Postfix) with ESMTP id 2AE45183F0C2; Wed, 16 Feb 2022 14:52:53 +0800 (+08) From: Richard Zhu To: l.stach@pengutronix.de, bhelgaas@google.com, broonie@kernel.org, lorenzo.pieralisi@arm.com, jingoohan1@gmail.com, festevam@gmail.com, francesco.dolcini@toradex.com Cc: hongxing.zhu@nxp.com, linux-pci@vger.kernel.org, linux-arm-kernel@lists.infradead.org, linux-kernel@vger.kernel.org, kernel@pengutronix.de, linux-imx@nxp.com Subject: [PATCH v7 4/8] PCI: imx6: Disable iMX6QDL PCIe REF clock when disable PCIe clocks Date: Wed, 16 Feb 2022 14:20:59 +0800 Message-Id: <1644992463-14467-5-git-send-email-hongxing.zhu@nxp.com> X-Mailer: git-send-email 2.7.4 In-Reply-To: <1644992463-14467-1-git-send-email-hongxing.zhu@nxp.com> References: <1644992463-14467-1-git-send-email-hongxing.zhu@nxp.com> X-Virus-Scanned: ClamAV using ClamSMTP Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org When disable PCIe clocks, disable i.MX6QDL PCIe REF clock too. Signed-off-by: Richard Zhu --- drivers/pci/controller/dwc/pci-imx6.c | 8 ++++++++ 1 file changed, 8 insertions(+) diff --git a/drivers/pci/controller/dwc/pci-imx6.c b/drivers/pci/controller/dwc/pci-imx6.c index e157f0bec37e..0aca762d88a3 100644 --- a/drivers/pci/controller/dwc/pci-imx6.c +++ b/drivers/pci/controller/dwc/pci-imx6.c @@ -540,6 +540,14 @@ static void imx6_pcie_clk_disable(struct imx6_pcie *imx6_pcie) clk_disable_unprepare(imx6_pcie->pcie_bus); switch (imx6_pcie->drvdata->variant) { + case IMX6Q: + case IMX6QP: + regmap_update_bits(imx6_pcie->iomuxc_gpr, IOMUXC_GPR1, + IMX6Q_GPR1_PCIE_REF_CLK_EN, 0); + regmap_update_bits(imx6_pcie->iomuxc_gpr, IOMUXC_GPR1, + IMX6Q_GPR1_PCIE_TEST_PD, + IMX6Q_GPR1_PCIE_TEST_PD); + break; case IMX6SX: clk_disable_unprepare(imx6_pcie->pcie_inbound_axi); break; -- 2.25.1