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b=ULsyrswSUSDJzM0uUZLpR0jTC7MKPovsI5l78sf0STHXDB4M86doOXqrZwms3colHV/KtrxXa69aNpF52/5M73valEROpA+V7tNCYXMwJRnQAYDuQzruSCcng/UOYCxASNjTRyzoWnvszllZ3b2ZFQuk/M7CRwkyZvPORo5dWLI= Authentication-Results: dkim=none (message not signed) header.d=none;dmarc=none action=none header.from=nxp.com; Received: from VI1PR04MB4845.eurprd04.prod.outlook.com (2603:10a6:803:51::30) by AM9PR04MB7569.eurprd04.prod.outlook.com (2603:10a6:20b:2d8::22) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384) id 15.20.7068.33; Mon, 11 Dec 2023 21:59:52 +0000 Received: from VI1PR04MB4845.eurprd04.prod.outlook.com ([fe80::dfaa:e869:45eb:76e5]) by VI1PR04MB4845.eurprd04.prod.outlook.com ([fe80::dfaa:e869:45eb:76e5%6]) with mapi id 15.20.7068.031; Mon, 11 Dec 2023 21:59:52 +0000 From: Frank Li To: frank.li@nxp.com Cc: bhelgaas@google.com, conor+dt@kernel.org, devicetree@vger.kernel.org, festevam@gmail.com, helgaas@kernel.org, hongxing.zhu@nxp.com, imx@lists.linux.dev, kernel@pengutronix.de, krzysztof.kozlowski+dt@linaro.org, kw@linux.com, l.stach@pengutronix.de, linux-arm-kernel@lists.infradead.org, linux-imx@nxp.com, linux-kernel@vger.kernel.org, linux-pci@vger.kernel.org, lpieralisi@kernel.org, manivannan.sadhasivam@linaro.org, robh@kernel.org, s.hauer@pengutronix.de, shawnguo@kernel.org Subject: [PATCH v3 06/13] PCI: imx6: Simplify configure_type() by using mode_off and mode_mask Date: Mon, 11 Dec 2023 16:58:35 -0500 Message-Id: <20231211215842.134823-7-Frank.Li@nxp.com> X-Mailer: git-send-email 2.34.1 In-Reply-To: <20231211215842.134823-1-Frank.Li@nxp.com> References: <20231211215842.134823-1-Frank.Li@nxp.com> Content-Transfer-Encoding: quoted-printable X-ClientProxiedBy: SJ0PR03CA0009.namprd03.prod.outlook.com (2603:10b6:a03:33a::14) To VI1PR04MB4845.eurprd04.prod.outlook.com (2603:10a6:803:51::30) MIME-Version: 1.0 X-MS-PublicTrafficType: Email X-MS-TrafficTypeDiagnostic: VI1PR04MB4845:EE_|AM9PR04MB7569:EE_ X-MS-Office365-Filtering-Correlation-Id: 01df5308-c1aa-40d4-498e-08dbfa9480a0 X-MS-Exchange-SenderADCheck: 1 X-MS-Exchange-AntiSpam-Relay: 0 X-Microsoft-Antispam: BCL:0; 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charset="utf-8" Add drvdata::mode_off and drvdata::mode_mask to simple imx6_pcie_configure_type() logic. Signed-off-by: Frank Li --- Notes: Change from v2 to v3 - none Change from v1 to v2 - use ffs() to fixe build error. drivers/pci/controller/dwc/pci-imx6.c | 60 ++++++++++++++++++--------- 1 file changed, 40 insertions(+), 20 deletions(-) diff --git a/drivers/pci/controller/dwc/pci-imx6.c b/drivers/pci/controller= /dwc/pci-imx6.c index 5bfb780e441fd..1fac6129eeb5f 100644 --- a/drivers/pci/controller/dwc/pci-imx6.c +++ b/drivers/pci/controller/dwc/pci-imx6.c @@ -69,6 +69,7 @@ enum imx6_pcie_variants { =20 #define imx6_check_flag(pci, val) (pci->drvdata->flags & val) =20 +#define IMX6_PCIE_MAX_INSTANCES 2 struct imx6_pcie_drvdata { enum imx6_pcie_variants variant; enum dw_pcie_device_mode mode; @@ -77,6 +78,8 @@ struct imx6_pcie_drvdata { const char *gpr; const u32 ltssm_off; const u32 ltssm_mask; + const u32 mode_off[IMX6_PCIE_MAX_INSTANCES]; + const u32 mode_mask[IMX6_PCIE_MAX_INSTANCES]; }; =20 struct imx6_pcie { @@ -177,32 +180,25 @@ static unsigned int imx6_pcie_grp_offset(const struct= imx6_pcie *imx6_pcie) =20 static void imx6_pcie_configure_type(struct imx6_pcie *imx6_pcie) { - unsigned int mask, val, mode; + const struct imx6_pcie_drvdata *drvdata =3D imx6_pcie->drvdata; + unsigned int mask, val, mode, id; =20 - if (imx6_pcie->drvdata->mode =3D=3D DW_PCIE_EP_TYPE) + if (drvdata->mode =3D=3D DW_PCIE_EP_TYPE) mode =3D PCI_EXP_TYPE_ENDPOINT; else mode =3D PCI_EXP_TYPE_ROOT_PORT; =20 - switch (imx6_pcie->drvdata->variant) { - case IMX8MQ: - case IMX8MQ_EP: - if (imx6_pcie->controller_id =3D=3D 1) { - mask =3D IMX8MQ_GPR12_PCIE2_CTRL_DEVICE_TYPE; - val =3D FIELD_PREP(IMX8MQ_GPR12_PCIE2_CTRL_DEVICE_TYPE, - mode); - } else { - mask =3D IMX6Q_GPR12_DEVICE_TYPE; - val =3D FIELD_PREP(IMX6Q_GPR12_DEVICE_TYPE, mode); - } - break; - default: - mask =3D IMX6Q_GPR12_DEVICE_TYPE; - val =3D FIELD_PREP(IMX6Q_GPR12_DEVICE_TYPE, mode); - break; - } + id =3D imx6_pcie->controller_id; + + /* If mode_mask[id] is zero, means each controller have its individual gp= r */ + if (!drvdata->mode_mask[id]) + id =3D 0; + + mask =3D drvdata->mode_mask[id]; + /* FIELD_PREP mask have been constant */ + val =3D mode << (ffs(mask) - 1); =20 - regmap_update_bits(imx6_pcie->iomuxc_gpr, IOMUXC_GPR12, mask, val); + regmap_update_bits(imx6_pcie->iomuxc_gpr, drvdata->mode_off[id], mask, va= l); } =20 static int pcie_phy_poll_ack(struct imx6_pcie *imx6_pcie, bool exp_val) @@ -1437,6 +1433,8 @@ static const struct imx6_pcie_drvdata drvdata[] =3D { .gpr =3D "fsl,imx6q-iomuxc-gpr", .ltssm_off =3D IOMUXC_GPR12, .ltssm_mask =3D IMX6Q_GPR12_PCIE_CTL_2, + .mode_off[0] =3D IOMUXC_GPR12, + .mode_mask[0] =3D IMX6Q_GPR12_DEVICE_TYPE, }, [IMX6SX] =3D { .variant =3D IMX6SX, @@ -1447,6 +1445,8 @@ static const struct imx6_pcie_drvdata drvdata[] =3D { .gpr =3D "fsl,imx6q-iomuxc-gpr", .ltssm_off =3D IOMUXC_GPR12, .ltssm_mask =3D IMX6Q_GPR12_PCIE_CTL_2, + .mode_off[0] =3D IOMUXC_GPR12, + .mode_mask[0] =3D IMX6Q_GPR12_DEVICE_TYPE, }, [IMX6QP] =3D { .variant =3D IMX6QP, @@ -1457,6 +1457,8 @@ static const struct imx6_pcie_drvdata drvdata[] =3D { .gpr =3D "fsl,imx6q-iomuxc-gpr", .ltssm_off =3D IOMUXC_GPR12, .ltssm_mask =3D IMX6Q_GPR12_PCIE_CTL_2, + .mode_off[0] =3D IOMUXC_GPR12, + .mode_mask[0] =3D IMX6Q_GPR12_DEVICE_TYPE, }, [IMX7D] =3D { .variant =3D IMX7D, @@ -1464,6 +1466,8 @@ static const struct imx6_pcie_drvdata drvdata[] =3D { IMX6_PCIE_FLAG_HAS_APP_RESET | IMX6_PCIE_FLAG_HAS_PHY_RESET, .gpr =3D "fsl,imx7d-iomuxc-gpr", + .mode_off[0] =3D IOMUXC_GPR12, + .mode_mask[0] =3D IMX6Q_GPR12_DEVICE_TYPE, }, [IMX8MQ] =3D { .variant =3D IMX8MQ, @@ -1471,6 +1475,10 @@ static const struct imx6_pcie_drvdata drvdata[] =3D { IMX6_PCIE_FLAG_HAS_APP_RESET | IMX6_PCIE_FLAG_HAS_PHY_RESET, .gpr =3D "fsl,imx8mq-iomuxc-gpr", + .mode_off[0] =3D IOMUXC_GPR12, + .mode_mask[0] =3D IMX6Q_GPR12_DEVICE_TYPE, + .mode_off[1] =3D IOMUXC_GPR12, + .mode_mask[1] =3D IMX8MQ_GPR12_PCIE2_CTRL_DEVICE_TYPE, }, [IMX8MM] =3D { .variant =3D IMX8MM, @@ -1479,6 +1487,8 @@ static const struct imx6_pcie_drvdata drvdata[] =3D { IMX6_PCIE_FLAG_HAS_PHY | IMX6_PCIE_FLAG_HAS_APP_RESET, .gpr =3D "fsl,imx8mm-iomuxc-gpr", + .mode_off[0] =3D IOMUXC_GPR12, + .mode_mask[0] =3D IMX6Q_GPR12_DEVICE_TYPE, }, [IMX8MP] =3D { .variant =3D IMX8MP, @@ -1487,6 +1497,8 @@ static const struct imx6_pcie_drvdata drvdata[] =3D { IMX6_PCIE_FLAG_HAS_PHY | IMX6_PCIE_FLAG_HAS_APP_RESET, .gpr =3D "fsl,imx8mp-iomuxc-gpr", + .mode_off[0] =3D IOMUXC_GPR12, + .mode_mask[0] =3D IMX6Q_GPR12_DEVICE_TYPE, }, [IMX8MQ_EP] =3D { .variant =3D IMX8MQ_EP, @@ -1495,6 +1507,10 @@ static const struct imx6_pcie_drvdata drvdata[] =3D { IMX6_PCIE_FLAG_HAS_PHY_RESET, .mode =3D DW_PCIE_EP_TYPE, .gpr =3D "fsl,imx8mq-iomuxc-gpr", + .mode_off[0] =3D IOMUXC_GPR12, + .mode_mask[0] =3D IMX6Q_GPR12_DEVICE_TYPE, + .mode_off[1] =3D IOMUXC_GPR12, + .mode_mask[1] =3D IMX8MQ_GPR12_PCIE2_CTRL_DEVICE_TYPE, }, [IMX8MM_EP] =3D { .variant =3D IMX8MM_EP, @@ -1502,12 +1518,16 @@ static const struct imx6_pcie_drvdata drvdata[] =3D= { IMX6_PCIE_FLAG_HAS_PHY, .mode =3D DW_PCIE_EP_TYPE, .gpr =3D "fsl,imx8mm-iomuxc-gpr", + .mode_off[0] =3D IOMUXC_GPR12, + .mode_mask[0] =3D IMX6Q_GPR12_DEVICE_TYPE, }, [IMX8MP_EP] =3D { .variant =3D IMX8MP_EP, .flags =3D IMX6_PCIE_FLAG_HAS_CLK_AUX, .mode =3D DW_PCIE_EP_TYPE, .gpr =3D "fsl,imx8mp-iomuxc-gpr", + .mode_off[0] =3D IOMUXC_GPR12, + .mode_mask[0] =3D IMX6Q_GPR12_DEVICE_TYPE, }, }; =20 --=20 2.34.1