From patchwork Fri Jun 30 09:30:55 2023 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Changhuang Liang X-Patchwork-Id: 13297891 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 bombadil.infradead.org (bombadil.infradead.org [198.137.202.133]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.lore.kernel.org (Postfix) with ESMTPS id 7A200EB64DD for ; Fri, 30 Jun 2023 09:32:02 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=lists.infradead.org; s=bombadil.20210309; h=Sender: Content-Transfer-Encoding:Content-Type:List-Subscribe:List-Help:List-Post: List-Archive:List-Unsubscribe:List-Id:MIME-Version:References:In-Reply-To: Message-ID:Date:Subject:CC:To:From:Reply-To:Content-ID:Content-Description: Resent-Date:Resent-From:Resent-Sender:Resent-To:Resent-Cc:Resent-Message-ID: List-Owner; bh=rN1xcZNWyEdQojaiCUXdLI42tTgTunnlXaRhpC/cFW0=; b=raegzPollPFX25 wLMU+wjAntBr+kxFIeHq3rYXCzaGpqLgLVAI3TrcMC4t7pccuQUj+eVMPNtH5yuzgE+c12QR9WO0q ukhR/7rnB4XJvdjwb5CAK2dcesLAGySk6zavgXwinar6CPpWD0j0b+XiaZKVE/HPoch20j2OeuHxl aMJIz8lip0FX6dn2obbG3nauwxFt9FMotpD9N6U8zoxemMkDx84ZlhWzecHWTcl7ExYeNbCXR3wre 6oHnmOraf/mLA0qTE/tIjTHXO5x1knD5J1CDGhBx7yQ7jkRAYk1Dlc95lFCEKibQbwTsjbbGavGoy inQHYGZG1fBSm98RcsHA==; Received: from localhost ([::1] helo=bombadil.infradead.org) by bombadil.infradead.org with esmtp (Exim 4.96 #2 (Red Hat Linux)) id 1qFATy-003IB7-0G; Fri, 30 Jun 2023 09:32:02 +0000 Received: from fd01.gateway.ufhost.com ([61.152.239.71]) by bombadil.infradead.org with esmtp (Exim 4.96 #2 (Red Hat Linux)) id 1qFATv-003I71-0x for linux-phy@lists.infradead.org; Fri, 30 Jun 2023 09:32:01 +0000 Received: from EXMBX166.cuchost.com (unknown [175.102.18.54]) (using TLSv1 with cipher DHE-RSA-AES256-SHA (256/256 bits)) (Client CN "EXMBX166", Issuer "EXMBX166" (not verified)) by fd01.gateway.ufhost.com (Postfix) with ESMTP id 12D228067; Fri, 30 Jun 2023 17:30:59 +0800 (CST) Received: from EXMBX062.cuchost.com (172.16.6.62) by EXMBX166.cuchost.com (172.16.6.76) with Microsoft SMTP Server (TLS) id 15.0.1497.42; Fri, 30 Jun 2023 17:30:59 +0800 Received: from ubuntu.localdomain (183.27.97.206) by EXMBX062.cuchost.com (172.16.6.62) with Microsoft SMTP Server (TLS) id 15.0.1497.42; Fri, 30 Jun 2023 17:30:58 +0800 From: Changhuang Liang To: Vinod Koul , Kishon Vijay Abraham I , Rob Herring , Krzysztof Kozlowski , Conor Dooley , Philipp Zabel CC: Jack Zhu , Changhuang Liang , , , Subject: [PATCH v6 1/2] dt-bindings: phy: Add starfive,jh7110-dphy-rx Date: Fri, 30 Jun 2023 02:30:55 -0700 Message-ID: <20230630093056.46904-2-changhuang.liang@starfivetech.com> X-Mailer: git-send-email 2.25.1 In-Reply-To: <20230630093056.46904-1-changhuang.liang@starfivetech.com> References: <20230630093056.46904-1-changhuang.liang@starfivetech.com> MIME-Version: 1.0 X-Originating-IP: [183.27.97.206] X-ClientProxiedBy: EXCAS061.cuchost.com (172.16.6.21) To EXMBX062.cuchost.com (172.16.6.62) X-YovoleRuleAgent: yovoleflag X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20230630_023159_701903_B9F95FBF X-CRM114-Status: GOOD ( 11.89 ) X-BeenThere: linux-phy@lists.infradead.org X-Mailman-Version: 2.1.34 Precedence: list List-Id: Linux Phy Mailing list List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Sender: "linux-phy" Errors-To: linux-phy-bounces+linux-phy=archiver.kernel.org@lists.infradead.org StarFive SoCs like the jh7110 use a MIPI D-PHY RX controller based on a M31 IP. Add a binding for it. Signed-off-by: Changhuang Liang Reviewed-by: Rob Herring --- .../bindings/phy/starfive,jh7110-dphy-rx.yaml | 71 +++++++++++++++++++ 1 file changed, 71 insertions(+) create mode 100644 Documentation/devicetree/bindings/phy/starfive,jh7110-dphy-rx.yaml diff --git a/Documentation/devicetree/bindings/phy/starfive,jh7110-dphy-rx.yaml b/Documentation/devicetree/bindings/phy/starfive,jh7110-dphy-rx.yaml new file mode 100644 index 000000000000..7224cde6fce0 --- /dev/null +++ b/Documentation/devicetree/bindings/phy/starfive,jh7110-dphy-rx.yaml @@ -0,0 +1,71 @@ +# SPDX-License-Identifier: (GPL-2.0 OR BSD-2-Clause) +%YAML 1.2 +--- +$id: http://devicetree.org/schemas/phy/starfive,jh7110-dphy-rx.yaml# +$schema: http://devicetree.org/meta-schemas/core.yaml# + +title: StarFive SoC JH7110 MIPI D-PHY Rx Controller + +maintainers: + - Jack Zhu + - Changhuang Liang + +description: + StarFive SoCs contain a MIPI CSI D-PHY based on M31 IP, used to + transfer CSI camera data. + +properties: + compatible: + const: starfive,jh7110-dphy-rx + + reg: + maxItems: 1 + + clocks: + items: + - description: config clock + - description: reference clock + - description: escape mode transmit clock + + clock-names: + items: + - const: cfg + - const: ref + - const: tx + + resets: + items: + - description: DPHY_HW reset + - description: DPHY_B09_ALWAYS_ON reset + + power-domains: + maxItems: 1 + + "#phy-cells": + const: 0 + +required: + - compatible + - reg + - clocks + - clock-names + - resets + - power-domains + - "#phy-cells" + +additionalProperties: false + +examples: + - | + phy@19820000 { + compatible = "starfive,jh7110-dphy-rx"; + reg = <0x19820000 0x10000>; + clocks = <&ispcrg 3>, + <&ispcrg 4>, + <&ispcrg 5>; + clock-names = "cfg", "ref", "tx"; + resets = <&ispcrg 2>, + <&ispcrg 3>; + power-domains = <&aon_syscon 1>; + #phy-cells = <0>; + }; From patchwork Fri Jun 30 09:30:56 2023 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Changhuang Liang X-Patchwork-Id: 13297889 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 bombadil.infradead.org (bombadil.infradead.org [198.137.202.133]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.lore.kernel.org (Postfix) with ESMTPS id 7AA1EEB64DA for ; Fri, 30 Jun 2023 09:31:48 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=lists.infradead.org; s=bombadil.20210309; h=Sender: Content-Transfer-Encoding:Content-Type:List-Subscribe:List-Help:List-Post: List-Archive:List-Unsubscribe:List-Id:MIME-Version:References:In-Reply-To: Message-ID:Date:Subject:CC:To:From:Reply-To:Content-ID:Content-Description: Resent-Date:Resent-From:Resent-Sender:Resent-To:Resent-Cc:Resent-Message-ID: List-Owner; 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Fri, 30 Jun 2023 17:30:59 +0800 (CST) Received: from EXMBX062.cuchost.com (172.16.6.62) by EXMBX165.cuchost.com (172.16.6.75) with Microsoft SMTP Server (TLS) id 15.0.1497.42; Fri, 30 Jun 2023 17:30:59 +0800 Received: from ubuntu.localdomain (183.27.97.206) by EXMBX062.cuchost.com (172.16.6.62) with Microsoft SMTP Server (TLS) id 15.0.1497.42; Fri, 30 Jun 2023 17:30:59 +0800 From: Changhuang Liang To: Vinod Koul , Kishon Vijay Abraham I , Rob Herring , Krzysztof Kozlowski , Conor Dooley , Philipp Zabel CC: Jack Zhu , Changhuang Liang , , , Subject: [PATCH v6 2/2] phy: starfive: Add mipi dphy rx support Date: Fri, 30 Jun 2023 02:30:56 -0700 Message-ID: <20230630093056.46904-3-changhuang.liang@starfivetech.com> X-Mailer: git-send-email 2.25.1 In-Reply-To: <20230630093056.46904-1-changhuang.liang@starfivetech.com> References: <20230630093056.46904-1-changhuang.liang@starfivetech.com> MIME-Version: 1.0 X-Originating-IP: [183.27.97.206] X-ClientProxiedBy: EXCAS061.cuchost.com (172.16.6.21) To EXMBX062.cuchost.com (172.16.6.62) X-YovoleRuleAgent: yovoleflag X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20230630_023143_816345_60C5A0B1 X-CRM114-Status: GOOD ( 21.96 ) X-BeenThere: linux-phy@lists.infradead.org X-Mailman-Version: 2.1.34 Precedence: list List-Id: Linux Phy Mailing list List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Sender: "linux-phy" Errors-To: linux-phy-bounces+linux-phy=archiver.kernel.org@lists.infradead.org Add mipi dphy rx support for the StarFive JH7110 SoC. It is used to transfer CSI camera data. Signed-off-by: Changhuang Liang --- MAINTAINERS | 7 + drivers/phy/Kconfig | 1 + drivers/phy/Makefile | 1 + drivers/phy/starfive/Kconfig | 13 ++ drivers/phy/starfive/Makefile | 2 + drivers/phy/starfive/phy-starfive-dphy-rx.c | 230 ++++++++++++++++++++ 6 files changed, 254 insertions(+) create mode 100644 drivers/phy/starfive/Kconfig create mode 100644 drivers/phy/starfive/Makefile create mode 100644 drivers/phy/starfive/phy-starfive-dphy-rx.c diff --git a/MAINTAINERS b/MAINTAINERS index 35e19594640d..2c58564ce5a0 100644 --- a/MAINTAINERS +++ b/MAINTAINERS @@ -20121,6 +20121,13 @@ S: Maintained F: Documentation/devicetree/bindings/net/starfive,jh7110-dwmac.yaml F: drivers/net/ethernet/stmicro/stmmac/dwmac-starfive.c +STARFIVE JH7110 DPHY RX DRIVER +M: Jack Zhu +M: Changhuang Liang +S: Supported +F: Documentation/devicetree/bindings/phy/starfive,jh7110-dphy-rx.yaml +F: drivers/phy/starfive/phy-starfive-dphy-rx.c + STARFIVE JH7110 MMC/SD/SDIO DRIVER M: William Qiu S: Supported diff --git a/drivers/phy/Kconfig b/drivers/phy/Kconfig index f46e3148d286..0000149edbc4 100644 --- a/drivers/phy/Kconfig +++ b/drivers/phy/Kconfig @@ -91,6 +91,7 @@ source "drivers/phy/rockchip/Kconfig" source "drivers/phy/samsung/Kconfig" source "drivers/phy/socionext/Kconfig" source "drivers/phy/st/Kconfig" +source "drivers/phy/starfive/Kconfig" source "drivers/phy/sunplus/Kconfig" source "drivers/phy/tegra/Kconfig" source "drivers/phy/ti/Kconfig" diff --git a/drivers/phy/Makefile b/drivers/phy/Makefile index 54f312c10a40..fb3dc9de6111 100644 --- a/drivers/phy/Makefile +++ b/drivers/phy/Makefile @@ -31,6 +31,7 @@ obj-y += allwinner/ \ samsung/ \ socionext/ \ st/ \ + starfive/ \ sunplus/ \ tegra/ \ ti/ \ diff --git a/drivers/phy/starfive/Kconfig b/drivers/phy/starfive/Kconfig new file mode 100644 index 000000000000..f989b8ff8bcb --- /dev/null +++ b/drivers/phy/starfive/Kconfig @@ -0,0 +1,13 @@ +# SPDX-License-Identifier: GPL-2.0-only +# +# Phy drivers for StarFive platforms +# + +config PHY_STARFIVE_DPHY_RX + tristate "StarFive D-PHY RX Support" + select GENERIC_PHY + select GENERIC_PHY_MIPI_DPHY + help + Choose this option if you have a StarFive D-PHY in your + system. If M is selected, the module will be called + phy-starfive-dphy-rx. diff --git a/drivers/phy/starfive/Makefile b/drivers/phy/starfive/Makefile new file mode 100644 index 000000000000..7ec576cb30ae --- /dev/null +++ b/drivers/phy/starfive/Makefile @@ -0,0 +1,2 @@ +# SPDX-License-Identifier: GPL-2.0 +obj-$(CONFIG_PHY_STARFIVE_DPHY_RX) += phy-starfive-dphy-rx.o diff --git a/drivers/phy/starfive/phy-starfive-dphy-rx.c b/drivers/phy/starfive/phy-starfive-dphy-rx.c new file mode 100644 index 000000000000..7015fae6503c --- /dev/null +++ b/drivers/phy/starfive/phy-starfive-dphy-rx.c @@ -0,0 +1,230 @@ +// SPDX-License-Identifier: GPL-2.0+ +/* + * DPHY driver for the StarFive JH7110 SoC + * + * Copyright (C) 2023 StarFive Technology Co., Ltd. + */ + +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include + +#define STF_DPHY_APBCFGSAIF_SYSCFG(x) (x) + +#define STF_DPHY_ENABLE_CLK BIT(6) +#define STF_DPHY_ENABLE_CLK1 BIT(7) +#define STF_DPHY_ENABLE_LAN0 BIT(8) +#define STF_DPHY_ENABLE_LAN1 BIT(9) +#define STF_DPHY_ENABLE_LAN2 BIT(10) +#define STF_DPHY_ENABLE_LAN3 BIT(11) +#define STF_DPHY_LANE_SWAP_CLK GENMASK(22, 20) +#define STF_DPHY_LANE_SWAP_CLK1 GENMASK(25, 23) +#define STF_DPHY_LANE_SWAP_LAN0 GENMASK(28, 26) +#define STF_DPHY_LANE_SWAP_LAN1 GENMASK(31, 29) + +#define STF_DPHY_LANE_SWAP_LAN2 GENMASK(2, 0) +#define STF_DPHY_LANE_SWAP_LAN3 GENMASK(5, 3) +#define STF_DPHY_PLL_CLK_SEL GENMASK(21, 12) +#define STF_DPHY_PRECOUNTER_IN_CLK GENMASK(29, 22) + +#define STF_DPHY_PRECOUNTER_IN_CLK1 GENMASK(7, 0) +#define STF_DPHY_PRECOUNTER_IN_LAN0 GENMASK(15, 8) +#define STF_DPHY_PRECOUNTER_IN_LAN1 GENMASK(23, 16) +#define STF_DPHY_PRECOUNTER_IN_LAN2 GENMASK(31, 24) + +#define STF_DPHY_PRECOUNTER_IN_LAN3 GENMASK(7, 0) +#define STF_DPHY_RX_1C2C_SEL BIT(8) + +#define STF_MAP_LANES_NUM 6 + +struct regval { + u32 addr; + u32 val; +}; + +struct stf_dphy_info { + /** + * @maps: + * + * Physical lanes and logic lanes mapping table. + * + * The default order is: + * [clk lane0, data lane 0, data lane 1, data lane 2, date lane 3, clk lane 1] + */ + u8 maps[STF_MAP_LANES_NUM]; +}; + +struct stf_dphy { + struct device *dev; + void __iomem *regs; + struct clk *cfg_clk; + struct clk *ref_clk; + struct clk *tx_clk; + struct reset_control *rstc; + struct regulator *mipi_0p9; + struct phy *phy; + const struct stf_dphy_info *info; +}; + +static int stf_dphy_configure(struct phy *phy, union phy_configure_opts *opts) +{ + struct stf_dphy *dphy = phy_get_drvdata(phy); + const struct stf_dphy_info *info = dphy->info; + + writel(FIELD_PREP(STF_DPHY_ENABLE_CLK, 1) | + FIELD_PREP(STF_DPHY_ENABLE_CLK1, 1) | + FIELD_PREP(STF_DPHY_ENABLE_LAN0, 1) | + FIELD_PREP(STF_DPHY_ENABLE_LAN1, 1) | + FIELD_PREP(STF_DPHY_ENABLE_LAN2, 1) | + FIELD_PREP(STF_DPHY_ENABLE_LAN3, 1) | + FIELD_PREP(STF_DPHY_LANE_SWAP_CLK, info->maps[0]) | + FIELD_PREP(STF_DPHY_LANE_SWAP_CLK1, info->maps[5]) | + FIELD_PREP(STF_DPHY_LANE_SWAP_LAN0, info->maps[1]) | + FIELD_PREP(STF_DPHY_LANE_SWAP_LAN1, info->maps[2]), + dphy->regs + STF_DPHY_APBCFGSAIF_SYSCFG(188)); + + writel(FIELD_PREP(STF_DPHY_LANE_SWAP_LAN2, info->maps[3]) | + FIELD_PREP(STF_DPHY_LANE_SWAP_LAN3, info->maps[4]) | + FIELD_PREP(STF_DPHY_PRECOUNTER_IN_CLK, 8), + dphy->regs + STF_DPHY_APBCFGSAIF_SYSCFG(192)); + + writel(FIELD_PREP(STF_DPHY_PRECOUNTER_IN_CLK1, 8) | + FIELD_PREP(STF_DPHY_PRECOUNTER_IN_LAN0, 7) | + FIELD_PREP(STF_DPHY_PRECOUNTER_IN_LAN1, 7) | + FIELD_PREP(STF_DPHY_PRECOUNTER_IN_LAN2, 7), + dphy->regs + STF_DPHY_APBCFGSAIF_SYSCFG(196)); + + writel(FIELD_PREP(STF_DPHY_PRECOUNTER_IN_LAN3, 7), + dphy->regs + STF_DPHY_APBCFGSAIF_SYSCFG(200)); + + return 0; +} + +static int stf_dphy_power_on(struct phy *phy) +{ + struct stf_dphy *dphy = phy_get_drvdata(phy); + int ret; + + ret = pm_runtime_resume_and_get(dphy->dev); + if (ret < 0) + return ret; + + ret = regulator_enable(dphy->mipi_0p9); + if (ret) { + pm_runtime_put(dphy->dev); + return ret; + } + + clk_set_rate(dphy->cfg_clk, 99000000); + clk_set_rate(dphy->ref_clk, 49500000); + clk_set_rate(dphy->tx_clk, 19800000); + reset_control_deassert(dphy->rstc); + + return 0; +} + +static int stf_dphy_power_off(struct phy *phy) +{ + struct stf_dphy *dphy = phy_get_drvdata(phy); + + reset_control_assert(dphy->rstc); + + regulator_disable(dphy->mipi_0p9); + + pm_runtime_put_sync(dphy->dev); + + return 0; +} + +static const struct phy_ops stf_dphy_ops = { + .configure = stf_dphy_configure, + .power_on = stf_dphy_power_on, + .power_off = stf_dphy_power_off, +}; + +static int stf_dphy_probe(struct platform_device *pdev) +{ + struct phy_provider *phy_provider; + struct stf_dphy *dphy; + + dphy = devm_kzalloc(&pdev->dev, sizeof(*dphy), GFP_KERNEL); + if (!dphy) + return -ENOMEM; + + dphy->info = of_device_get_match_data(&pdev->dev); + + dev_set_drvdata(&pdev->dev, dphy); + dphy->dev = &pdev->dev; + + dphy->regs = devm_platform_ioremap_resource(pdev, 0); + if (IS_ERR(dphy->regs)) + return PTR_ERR(dphy->regs); + + dphy->cfg_clk = devm_clk_get(&pdev->dev, "cfg"); + if (IS_ERR(dphy->cfg_clk)) + return PTR_ERR(dphy->cfg_clk); + + dphy->ref_clk = devm_clk_get(&pdev->dev, "ref"); + if (IS_ERR(dphy->ref_clk)) + return PTR_ERR(dphy->ref_clk); + + dphy->tx_clk = devm_clk_get(&pdev->dev, "tx"); + if (IS_ERR(dphy->tx_clk)) + return PTR_ERR(dphy->tx_clk); + + dphy->rstc = devm_reset_control_array_get_exclusive(&pdev->dev); + if (IS_ERR(dphy->rstc)) + return PTR_ERR(dphy->rstc); + + dphy->mipi_0p9 = devm_regulator_get(&pdev->dev, "mipi_0p9"); + if (IS_ERR(dphy->mipi_0p9)) + return PTR_ERR(dphy->mipi_0p9); + + dphy->phy = devm_phy_create(&pdev->dev, NULL, &stf_dphy_ops); + if (IS_ERR(dphy->phy)) { + dev_err(&pdev->dev, "Failed to create PHY\n"); + return PTR_ERR(dphy->phy); + } + + pm_runtime_enable(&pdev->dev); + + phy_set_drvdata(dphy->phy, dphy); + phy_provider = devm_of_phy_provider_register(&pdev->dev, + of_phy_simple_xlate); + + return PTR_ERR_OR_ZERO(phy_provider); +} + +static const struct stf_dphy_info starfive_dphy_info = { + .maps = {4, 0, 1, 2, 3, 5}, +}; + +static const struct of_device_id stf_dphy_dt_ids[] = { + { + .compatible = "starfive,jh7110-dphy-rx", + .data = &starfive_dphy_info, + }, + { /* sentinel */ }, +}; +MODULE_DEVICE_TABLE(of, stf_dphy_dt_ids); + +static struct platform_driver stf_dphy_driver = { + .probe = stf_dphy_probe, + .driver = { + .name = "starfive-dphy-rx", + .of_match_table = stf_dphy_dt_ids, + }, +}; +module_platform_driver(stf_dphy_driver); + +MODULE_AUTHOR("Jack Zhu "); +MODULE_AUTHOR("Changhuang Liang "); +MODULE_DESCRIPTION("StarFive DPHY RX driver"); +MODULE_LICENSE("GPL");