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 X-Spam-Level: X-Spam-Status: No, score=-6.8 required=3.0 tests=DKIM_SIGNED,DKIM_VALID, DKIM_VALID_AU,FREEMAIL_FORGED_FROMDOMAIN,FREEMAIL_FROM, HEADER_FROM_DIFFERENT_DOMAINS,INCLUDES_PATCH,MAILING_LIST_MULTI,SIGNED_OFF_BY, SPF_PASS autolearn=ham autolearn_force=no version=3.4.0 Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) by smtp.lore.kernel.org (Postfix) with ESMTP id ADF6CC10F11 for ; Sat, 13 Apr 2019 06:42:01 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id 5DA6220869 for ; Sat, 13 Apr 2019 06:42:01 +0000 (UTC) Authentication-Results: mail.kernel.org; dkim=pass (2048-bit key) header.d=gmail.com header.i=@gmail.com header.b="efVypBnQ" Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1726922AbfDMGmB (ORCPT ); Sat, 13 Apr 2019 02:42:01 -0400 Received: from mail-oi1-f195.google.com ([209.85.167.195]:43063 "EHLO mail-oi1-f195.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1725766AbfDMGmA (ORCPT ); Sat, 13 Apr 2019 02:42:00 -0400 Received: by mail-oi1-f195.google.com with SMTP id t81so9804945oig.10; Fri, 12 Apr 2019 23:42:00 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20161025; h=mime-version:references:in-reply-to:from:date:message-id:subject:to :cc; bh=X5iuzpTjgycvM4OTuqciup+62MIApUbtIZos4mNob/M=; b=efVypBnQVZKMJoZ/Pfa57KHXV1QBtjVrK7D2rzfNZJED3Pyq58vRymLjFZXsTD92st Ah9dVo3qxab7szfjmaTGSZwTiwYPm3uWK6PS2BlAO99BQ8NtKgYFN9/HdOkRmurotKyk RiZEbKUPay27zrRmwIhKtE7nqDAfmMZPTyy+kyssdNA3PTWJD1qMBTXe8boFCt+tegEe AkgiOC/GoutcRzx/oT9gYYcSCF26uKz4nPzHrQphtHJtjF/d6HiJ9HjcM4eH7QXVD38p eg/cEkO00AqirdQkdP46u1MPKjuomflsGMutiTDIFOv0jYKk82XRqCr6YKvI55LjEfVe 6wRw== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20161025; h=x-gm-message-state:mime-version:references:in-reply-to:from:date :message-id:subject:to:cc; bh=X5iuzpTjgycvM4OTuqciup+62MIApUbtIZos4mNob/M=; b=ZwDHG94n9UeYFh7VXbk/3jo9hXz+FZZCbgLCXalBk9Br74b015ZxlqE3JS23YEgsnz /O9h4PO0wKy7/nSR0+0ws4BW31no8HDrwUiz9xxv14g2NwbZmxJrH+P22HB1+C/e3cdv I0NDNeWmj6FAaz7g0GNKiUc8zijXizwLt3atxv6FQnQ8O9zqppHoTCiha7oGovc/ZWXh SxeVGGeQi49DHBxeVkpLfj3SgCnSWV/Zz18U5WyxDf6cWZweNqK5rMYJnXO7ivmtJMsV 7NoLYa8eLZpxuNzsihq0d8EsYIK1vSc+Cgv2dUltRsd+eTpjp9jL6ELuf1S+iC9WeoVm HIWQ== X-Gm-Message-State: APjAAAVy5rUlznHvDzX72SnaHUjDlxWT+VzK/5lWHi4NYG4t49+Z9QpH RerH8oAAlXgzEWhcc+Ur+vQMOQlidnlfSbn7aM4= X-Google-Smtp-Source: APXvYqzbeeZNYxgi3LEbEYTQQGOHG4pSQGkHLw1agFFicoNI5fjmS+CaxeEUxjvviRm5ObJibkmWQay02BmkTnnTUk0= X-Received: by 2002:aca:fc02:: with SMTP id a2mr12627435oii.44.1555137719602; Fri, 12 Apr 2019 23:41:59 -0700 (PDT) MIME-Version: 1.0 References: <20190330055038.18958-1-sergio.paracuellos@gmail.com> <20190330055038.18958-3-sergio.paracuellos@gmail.com> In-Reply-To: <20190330055038.18958-3-sergio.paracuellos@gmail.com> From: Sergio Paracuellos Date: Sat, 13 Apr 2019 08:41:48 +0200 Message-ID: Subject: Re: [PATCH v2 2/2] phy: ralink: Add PHY driver for MT7621 PCIe PHY To: kishon@ti.com Cc: linux-kernel , driverdev-devel@linuxdriverproject.org, "open list:OPEN FIRMWARE AND FLATTENED DEVICE TREE BINDINGS" , John Crispin , linux-mips@vger.kernel.org, Rob Herring , NeilBrown Content-Type: text/plain; charset="UTF-8" Sender: linux-mips-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-mips@vger.kernel.org Hi all! On Sat, Mar 30, 2019 at 6:50 AM Sergio Paracuellos wrote: > > This patch adds a driver for the PCIe PHY of MT7621 SoC. > > Signed-off-by: Sergio Paracuellos > --- > drivers/phy/ralink/Kconfig | 7 + > drivers/phy/ralink/Makefile | 1 + > drivers/phy/ralink/phy-mt7621-pci.c | 401 ++++++++++++++++++++++++++++ > 3 files changed, 409 insertions(+) > create mode 100644 drivers/phy/ralink/phy-mt7621-pci.c Any comments on this? Thanks in advance for your time. Best regards, Sergio Paracuellos > > diff --git a/drivers/phy/ralink/Kconfig b/drivers/phy/ralink/Kconfig > index 14fd219535ef..87943a10f210 100644 > --- a/drivers/phy/ralink/Kconfig > +++ b/drivers/phy/ralink/Kconfig > @@ -1,6 +1,13 @@ > # > # PHY drivers for Ralink platforms. > # > +config PHY_MT7621_PCI > + tristate "MediaTek MT7621 PCI PHY Driver" > + depends on RALINK && OF > + select GENERIC_PHY > + help > + Say 'Y' here to add support for MediaTek MT7621 PCI PHY driver, > + > config PHY_RALINK_USB > tristate "Ralink USB PHY driver" > depends on RALINK || COMPILE_TEST > diff --git a/drivers/phy/ralink/Makefile b/drivers/phy/ralink/Makefile > index 5c9e326e8757..2052d5649863 100644 > --- a/drivers/phy/ralink/Makefile > +++ b/drivers/phy/ralink/Makefile > @@ -1 +1,2 @@ > +obj-$(CONFIG_PHY_MT7621_PCI) += phy-mt7621-pci.o > obj-$(CONFIG_PHY_RALINK_USB) += phy-ralink-usb.o > diff --git a/drivers/phy/ralink/phy-mt7621-pci.c b/drivers/phy/ralink/phy-mt7621-pci.c > new file mode 100644 > index 000000000000..118302c122ee > --- /dev/null > +++ b/drivers/phy/ralink/phy-mt7621-pci.c > @@ -0,0 +1,401 @@ > +// SPDX-License-Identifier: GPL-2.0+ > +/* > + * Mediatek MT7621 PCI PHY Driver > + * Author: Sergio Paracuellos > + */ > + > +#include > +#include > +#include > +#include > +#include > +#include > +#include > +#include > +#include > + > +#define RALINK_CLKCFG1 0x30 > +#define CHIP_REV_MT7621_E2 0x0101 > + > +#define PCIE_PORT_CLK_EN(x) BIT(24 + (x)) > + > +#define RG_PE1_PIPE_REG 0x02c > +#define RG_PE1_PIPE_RST BIT(12) > +#define RG_PE1_PIPE_CMD_FRC BIT(4) > + > +#define RG_P0_TO_P1_WIDTH 0x100 > +#define RG_PE1_H_LCDDS_REG 0x49c > +#define RG_PE1_H_LCDDS_PCW GENMASK(30, 0) > +#define RG_PE1_H_LCDDS_PCW_VAL(x) ((0x7fffffff & (x)) << 0) > + > +#define RG_PE1_FRC_H_XTAL_REG 0x400 > +#define RG_PE1_FRC_H_XTAL_TYPE BIT(8) > +#define RG_PE1_H_XTAL_TYPE GENMASK(10, 9) > +#define RG_PE1_H_XTAL_TYPE_VAL(x) ((0x3 & (x)) << 9) > + > +#define RG_PE1_FRC_PHY_REG 0x000 > +#define RG_PE1_FRC_PHY_EN BIT(4) > +#define RG_PE1_PHY_EN BIT(5) > + > +#define RG_PE1_H_PLL_REG 0x490 > +#define RG_PE1_H_PLL_BC GENMASK(23, 22) > +#define RG_PE1_H_PLL_BC_VAL(x) ((0x3 & (x)) << 22) > +#define RG_PE1_H_PLL_BP GENMASK(21, 18) > +#define RG_PE1_H_PLL_BP_VAL(x) ((0xf & (x)) << 18) > +#define RG_PE1_H_PLL_IR GENMASK(15, 12) > +#define RG_PE1_H_PLL_IR_VAL(x) ((0xf & (x)) << 12) > +#define RG_PE1_H_PLL_IC GENMASK(11, 8) > +#define RG_PE1_H_PLL_IC_VAL(x) ((0xf & (x)) << 8) > +#define RG_PE1_H_PLL_PREDIV GENMASK(7, 6) > +#define RG_PE1_H_PLL_PREDIV_VAL(x) ((0x3 & (x)) << 6) > +#define RG_PE1_PLL_DIVEN GENMASK(3, 1) > +#define RG_PE1_PLL_DIVEN_VAL(x) ((0x7 & (x)) << 1) > + > +#define RG_PE1_H_PLL_FBKSEL_REG 0x4bc > +#define RG_PE1_H_PLL_FBKSEL GENMASK(5, 4) > +#define RG_PE1_H_PLL_FBKSEL_VAL(x) ((0x3 & (x)) << 4) > + > +#define RG_PE1_H_LCDDS_SSC_PRD_REG 0x4a4 > +#define RG_PE1_H_LCDDS_SSC_PRD GENMASK(15, 0) > +#define RG_PE1_H_LCDDS_SSC_PRD_VAL(x) ((0xffff & (x)) << 0) > + > +#define RG_PE1_H_LCDDS_SSC_DELTA_REG 0x4a8 > +#define RG_PE1_H_LCDDS_SSC_DELTA GENMASK(11, 0) > +#define RG_PE1_H_LCDDS_SSC_DELTA_VAL(x) ((0xfff & (x)) << 0) > +#define RG_PE1_H_LCDDS_SSC_DELTA1 GENMASK(27, 16) > +#define RG_PE1_H_LCDDS_SSC_DELTA1_VAL(x) ((0xff & (x)) << 16) > + > +#define RG_PE1_LCDDS_CLK_PH_INV_REG 0x4a0 > +#define RG_PE1_LCDDS_CLK_PH_INV BIT(5) > + > +#define RG_PE1_H_PLL_BR_REG 0x4ac > +#define RG_PE1_H_PLL_BR GENMASK(18, 16) > +#define RG_PE1_H_PLL_BR_VAL(x) ((0x7 & (x)) << 16) > + > +#define RG_PE1_MSTCKDIV_REG 0x414 > +#define RG_PE1_MSTCKDIV GENMASK(7, 6) > +#define RG_PE1_MSTCKDIV_VAL(x) ((0x3 & (x)) << 6) > + > +#define RG_PE1_FRC_MSTCKDIV BIT(5) > + > +#define MAX_PHYS 2 > + > +/** > + * struct mt7621_pci_phy_instance - Mt7621 Pcie PHY device > + * @phy: pointer to the kernel PHY device > + * @port_base: base register > + * @index: internal ID to identify the Mt7621 PCIe PHY > + */ > +struct mt7621_pci_phy_instance { > + struct phy *phy; > + void __iomem *port_base; > + u32 index; > +}; > + > +/** > + * struct mt7621_pci_phy - Mt7621 Pcie PHY core > + * @dev: pointer to device > + * @phys: pointer to Mt7621 PHY device > + * @nphys: number of PHY devices for this core > + */ > +struct mt7621_pci_phy { > + struct device *dev; > + struct mt7621_pci_phy_instance **phys; > + int nphys; > +}; > + > +static inline u32 phy_read(struct mt7621_pci_phy_instance *instance, u32 reg) > +{ > + return readl(instance->port_base + reg); > +} > + > +static inline void phy_write(struct mt7621_pci_phy_instance *instance, > + u32 val, u32 reg) > +{ > + writel(val, instance->port_base + reg); > +} > + > +static void mt7621_bypass_pipe_rst(struct mt7621_pci_phy *phy, > + struct mt7621_pci_phy_instance *instance) > +{ > + u32 offset = (instance->index != 1) ? > + RG_PE1_PIPE_REG : RG_PE1_PIPE_REG + RG_P0_TO_P1_WIDTH; > + u32 reg; > + > + reg = phy_read(instance, offset); > + reg &= ~(RG_PE1_PIPE_RST | RG_PE1_PIPE_CMD_FRC); > + reg |= (RG_PE1_PIPE_RST | RG_PE1_PIPE_CMD_FRC); > + phy_write(instance, reg, offset); > +} > + > +static void mt7621_set_phy_for_ssc(struct mt7621_pci_phy *phy, > + struct mt7621_pci_phy_instance *instance) > +{ > + struct device *dev = phy->dev; > + u32 reg = rt_sysc_r32(SYSC_REG_SYSTEM_CONFIG0); > + u32 offset; > + u32 val; > + > + reg = (reg >> 6) & 0x7; > + /* Set PCIe Port PHY to disable SSC */ > + /* Debug Xtal Type */ > + val = phy_read(instance, RG_PE1_FRC_H_XTAL_REG); > + val &= ~(RG_PE1_FRC_H_XTAL_TYPE | RG_PE1_H_XTAL_TYPE); > + val |= RG_PE1_FRC_H_XTAL_TYPE; > + val |= RG_PE1_H_XTAL_TYPE_VAL(0x00); > + phy_write(instance, val, RG_PE1_FRC_H_XTAL_REG); > + > + /* disable port */ > + offset = (instance->index != 1) ? > + RG_PE1_FRC_PHY_REG : RG_PE1_FRC_PHY_REG + RG_P0_TO_P1_WIDTH; > + val = phy_read(instance, offset); > + val &= ~(RG_PE1_FRC_PHY_EN | RG_PE1_PHY_EN); > + val |= RG_PE1_FRC_PHY_EN; > + phy_write(instance, val, offset); > + > + /* Set Pre-divider ratio (for host mode) */ > + val = phy_read(instance, RG_PE1_H_PLL_REG); > + val &= ~(RG_PE1_H_PLL_PREDIV); > + > + if (reg <= 5 && reg >= 3) { /* 40MHz Xtal */ > + val |= RG_PE1_H_PLL_PREDIV_VAL(0x01); > + phy_write(instance, val, RG_PE1_H_PLL_REG); > + dev_info(dev, "Xtal is 40MHz\n"); > + } else { /* 25MHz | 20MHz Xtal */ > + val |= RG_PE1_H_PLL_PREDIV_VAL(0x00); > + phy_write(instance, val, RG_PE1_H_PLL_REG); > + if (reg >= 6) { > + dev_info(dev, "Xtal is 25MHz\n"); > + > + /* Select feedback clock */ > + val = phy_read(instance, RG_PE1_H_PLL_FBKSEL_REG); > + val &= ~(RG_PE1_H_PLL_FBKSEL); > + val |= RG_PE1_H_PLL_FBKSEL_VAL(0x01); > + phy_write(instance, val, RG_PE1_H_PLL_FBKSEL_REG); > + > + /* DDS NCPO PCW (for host mode) */ > + val = phy_read(instance, RG_PE1_H_LCDDS_SSC_PRD_REG); > + val &= ~(RG_PE1_H_LCDDS_SSC_PRD); > + val |= RG_PE1_H_LCDDS_SSC_PRD_VAL(0x18000000); > + phy_write(instance, val, RG_PE1_H_LCDDS_SSC_PRD_REG); > + > + /* DDS SSC dither period control */ > + val = phy_read(instance, RG_PE1_H_LCDDS_SSC_PRD_REG); > + val &= ~(RG_PE1_H_LCDDS_SSC_PRD); > + val |= RG_PE1_H_LCDDS_SSC_PRD_VAL(0x18d); > + phy_write(instance, val, RG_PE1_H_LCDDS_SSC_PRD_REG); > + > + /* DDS SSC dither amplitude control */ > + val = phy_read(instance, RG_PE1_H_LCDDS_SSC_DELTA_REG); > + val &= ~(RG_PE1_H_LCDDS_SSC_DELTA | > + RG_PE1_H_LCDDS_SSC_DELTA1); > + val |= RG_PE1_H_LCDDS_SSC_DELTA_VAL(0x4a); > + val |= RG_PE1_H_LCDDS_SSC_DELTA1_VAL(0x4a); > + phy_write(instance, val, RG_PE1_H_LCDDS_SSC_DELTA_REG); > + } else { > + dev_info(dev, "Xtal is 20MHz\n"); > + } > + } > + > + /* DDS clock inversion */ > + val = phy_read(instance, RG_PE1_LCDDS_CLK_PH_INV_REG); > + val &= ~(RG_PE1_LCDDS_CLK_PH_INV); > + val |= RG_PE1_LCDDS_CLK_PH_INV; > + phy_write(instance, val, RG_PE1_LCDDS_CLK_PH_INV_REG); > + > + /* Set PLL bits */ > + val = phy_read(instance, RG_PE1_H_PLL_REG); > + val &= ~(RG_PE1_H_PLL_BC | RG_PE1_H_PLL_BP | RG_PE1_H_PLL_IR | > + RG_PE1_H_PLL_IC | RG_PE1_PLL_DIVEN); > + val |= RG_PE1_H_PLL_BC_VAL(0x02); > + val |= RG_PE1_H_PLL_BP_VAL(0x06); > + val |= RG_PE1_H_PLL_IR_VAL(0x02); > + val |= RG_PE1_H_PLL_IC_VAL(0x01); > + val |= RG_PE1_PLL_DIVEN_VAL(0x02); > + phy_write(instance, val, RG_PE1_H_PLL_REG); > + > + val = phy_read(instance, RG_PE1_H_PLL_BR_REG); > + val &= ~(RG_PE1_H_PLL_BR); > + val |= RG_PE1_H_PLL_BR_VAL(0x00); > + phy_write(instance, val, RG_PE1_H_PLL_BR_REG); > + > + if (reg <= 5 && reg >= 3) { /* 40MHz Xtal */ > + /* set force mode enable of da_pe1_mstckdiv */ > + val = phy_read(instance, RG_PE1_MSTCKDIV_REG); > + val &= ~(RG_PE1_MSTCKDIV | RG_PE1_FRC_MSTCKDIV); > + val |= (RG_PE1_MSTCKDIV_VAL(0x01) | RG_PE1_FRC_MSTCKDIV); > + phy_write(instance, val, RG_PE1_MSTCKDIV_REG); > + } > +} > + > +static int mt7621_pci_phy_init(struct phy *phy) > +{ > + struct mt7621_pci_phy_instance *instance = phy_get_drvdata(phy); > + struct mt7621_pci_phy *mphy = dev_get_drvdata(phy->dev.parent); > + u32 chip_rev_id = rt_sysc_r32(SYSC_REG_CHIP_REV); > + > + if ((chip_rev_id & 0xFFFF) == CHIP_REV_MT7621_E2) > + mt7621_bypass_pipe_rst(mphy, instance); > + > + mt7621_set_phy_for_ssc(mphy, instance); > + > + return 0; > +} > + > +static int mt7621_pci_phy_power_on(struct phy *phy) > +{ > + struct mt7621_pci_phy_instance *instance = phy_get_drvdata(phy); > + u32 offset = (instance->index != 1) ? > + RG_PE1_FRC_PHY_REG : RG_PE1_FRC_PHY_REG + RG_P0_TO_P1_WIDTH; > + u32 val; > + > + /* Enable PHY and disable force mode */ > + val = phy_read(instance, offset); > + val &= ~(RG_PE1_FRC_PHY_EN | RG_PE1_PHY_EN); > + val |= (RG_PE1_FRC_PHY_EN | RG_PE1_PHY_EN); > + phy_write(instance, val, offset); > + > + return 0; > +} > + > +static int mt7621_pci_phy_power_off(struct phy *phy) > +{ > + struct mt7621_pci_phy_instance *instance = phy_get_drvdata(phy); > + u32 offset = (instance->index != 1) ? > + RG_PE1_FRC_PHY_REG : RG_PE1_FRC_PHY_REG + RG_P0_TO_P1_WIDTH; > + u32 val; > + > + /* Disable PHY */ > + val = phy_read(instance, offset); > + val &= ~(RG_PE1_FRC_PHY_EN | RG_PE1_PHY_EN); > + val |= RG_PE1_FRC_PHY_EN; > + phy_write(instance, val, offset); > + > + return 0; > +} > + > +static int mt7621_pci_phy_exit(struct phy *phy) > +{ > + struct mt7621_pci_phy_instance *instance = phy_get_drvdata(phy); > + > + rt_sysc_m32(PCIE_PORT_CLK_EN(instance->index), 0, RALINK_CLKCFG1); > + > + return 0; > +} > + > +static const struct phy_ops mt7621_pci_phy_ops = { > + .init = mt7621_pci_phy_init, > + .exit = mt7621_pci_phy_exit, > + .power_on = mt7621_pci_phy_power_on, > + .power_off = mt7621_pci_phy_power_off, > + .owner = THIS_MODULE, > +}; > + > +static struct phy *mt7621_pcie_phy_of_xlate(struct device *dev, > + struct of_phandle_args *args) > +{ > + struct mt7621_pci_phy *mt7621_phy = dev_get_drvdata(dev); > + > + if (args->args_count == 0) > + return mt7621_phy->phys[0]->phy; > + > + if (WARN_ON(args->args[0] >= MAX_PHYS)) > + return ERR_PTR(-ENODEV); > + > + return mt7621_phy->phys[args->args[0]]->phy; > +} > + > +static int mt7621_pci_phy_probe(struct platform_device *pdev) > +{ > + struct device *dev = &pdev->dev; > + struct device_node *np = dev->of_node; > + struct device_node *child_np; > + struct phy_provider *provider; > + struct mt7621_pci_phy *phy; > + struct resource res; > + int port, ret; > + void __iomem *port_base; > + > + phy = devm_kzalloc(dev, sizeof(*phy), GFP_KERNEL); > + if (!phy) > + return -ENOMEM; > + > + phy->nphys = MAX_PHYS; > + phy->phys = devm_kcalloc(dev, phy->nphys, > + sizeof(*phy->phys), GFP_KERNEL); > + if (!phy->phys) > + return -ENOMEM; > + > + phy->dev = dev; > + platform_set_drvdata(pdev, phy); > + > + ret = of_address_to_resource(np, 0, &res); > + if (ret) { > + dev_err(dev, "failed to get address resource(id-%d)\n", port); > + return ret; > + } > + > + port_base = devm_ioremap_resource(dev, &res); > + if (IS_ERR(port_base)) { > + dev_err(dev, "failed to remap phy regs\n"); > + return PTR_ERR(port_base); > + } > + > + for (port = 0; port < MAX_PHYS; port++) { > + struct mt7621_pci_phy_instance *instance; > + struct phy *pphy; > + > + instance = devm_kzalloc(dev, sizeof(*instance), GFP_KERNEL); > + if (!instance) { > + ret = -ENOMEM; > + goto put_child; > + } > + > + phy->phys[port] = instance; > + > + pphy = devm_phy_create(dev, dev->of_node, &mt7621_pci_phy_ops); > + if (IS_ERR(phy)) { > + dev_err(dev, "failed to create phy\n"); > + ret = PTR_ERR(phy); > + goto put_child; > + } > + > + instance->port_base = port_base; > + instance->phy = pphy; > + instance->index = port; > + phy_set_drvdata(pphy, instance); > + } > + > + provider = devm_of_phy_provider_register(dev, mt7621_pcie_phy_of_xlate); > + > + return PTR_ERR_OR_ZERO(provider); > + > +put_child: > + of_node_put(child_np); > + return ret; > +} > + > +static const struct of_device_id mt7621_pci_phy_ids[] = { > + { .compatible = "mediatek,mt7621-pci-phy" }, > + {}, > +}; > +MODULE_DEVICE_TABLE(of, mt7621_pci_ids); > + > +static struct platform_driver mt7621_pci_phy_driver = { > + .probe = mt7621_pci_phy_probe, > + .driver = { > + .name = "mt7621-pci-phy", > + .of_match_table = of_match_ptr(mt7621_pci_phy_ids), > + }, > +}; > + > +static int __init mt7621_pci_phy_drv_init(void) > +{ > + return platform_driver_register(&mt7621_pci_phy_driver); > +} > + > +module_init(mt7621_pci_phy_drv_init); > + > +MODULE_AUTHOR("Sergio Paracuellos "); > +MODULE_DESCRIPTION("MediaTek MT7621 PCIe PHY driver"); > +MODULE_LICENSE("GPL v2"); > -- > 2.19.1 >