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Release 4.10 drivers/phy/phy-bcm-ns2-pcie.c

Directory: drivers/phy
/*
 * Copyright (C) 2016 Broadcom
 *
 * This program is free software; you can redistribute it and/or
 * modify it under the terms of the GNU General Public License as
 * published by the Free Software Foundation version 2.
 *
 * This program is distributed "as is" WITHOUT ANY WARRANTY of any
 * kind, whether express or implied; without even the implied warranty
 * of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 * GNU General Public License for more details.
 */

#include <linux/device.h>
#include <linux/module.h>
#include <linux/of_mdio.h>
#include <linux/mdio.h>
#include <linux/phy.h>
#include <linux/phy/phy.h>


#define BLK_ADDR_REG_OFFSET	0x1f

#define PLL_AFE1_100MHZ_BLK	0x2100

#define PLL_CLK_AMP_OFFSET	0x03

#define PLL_CLK_AMP_2P05V	0x2b18


static int ns2_pci_phy_init(struct phy *p) { struct mdio_device *mdiodev = phy_get_drvdata(p); int rc; /* select the AFE 100MHz block page */ rc = mdiobus_write(mdiodev->bus, mdiodev->addr, BLK_ADDR_REG_OFFSET, PLL_AFE1_100MHZ_BLK); if (rc) goto err; /* set the 100 MHz reference clock amplitude to 2.05 v */ rc = mdiobus_write(mdiodev->bus, mdiodev->addr, PLL_CLK_AMP_OFFSET, PLL_CLK_AMP_2P05V); if (rc) goto err; return 0; err: dev_err(&mdiodev->dev, "Error %d writing to phy\n", rc); return rc; }

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pramod kumarpramod kumar9297.87%150.00%
axel linaxel lin22.13%150.00%
Total94100.00%2100.00%

static const struct phy_ops ns2_pci_phy_ops = { .init = ns2_pci_phy_init, .owner = THIS_MODULE, };
static int ns2_pci_phy_probe(struct mdio_device *mdiodev) { struct device *dev = &mdiodev->dev; struct phy_provider *provider; struct phy *phy; phy = devm_phy_create(dev, dev->of_node, &ns2_pci_phy_ops); if (IS_ERR(phy)) { dev_err(dev, "failed to create Phy\n"); return PTR_ERR(phy); } phy_set_drvdata(phy, mdiodev); provider = devm_of_phy_provider_register(&phy->dev, of_phy_simple_xlate); if (IS_ERR(provider)) { dev_err(dev, "failed to register Phy provider\n"); return PTR_ERR(provider); } dev_info(dev, "%s PHY registered\n", dev_name(dev)); return 0; }

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pramod kumarpramod kumar12299.19%150.00%
axel linaxel lin10.81%150.00%
Total123100.00%2100.00%

static const struct of_device_id ns2_pci_phy_of_match[] = { { .compatible = "brcm,ns2-pcie-phy", }, { /* sentinel */ }, }; MODULE_DEVICE_TABLE(of, ns2_pci_phy_of_match); static struct mdio_driver ns2_pci_phy_driver = { .mdiodrv = { .driver = { .name = "phy-bcm-ns2-pci", .of_match_table = ns2_pci_phy_of_match, }, }, .probe = ns2_pci_phy_probe, }; mdio_module_driver(ns2_pci_phy_driver); MODULE_AUTHOR("Broadcom"); MODULE_DESCRIPTION("Broadcom Northstar2 PCI Phy driver"); MODULE_LICENSE("GPL v2"); MODULE_ALIAS("platform:phy-bcm-ns2-pci");

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pramod kumarpramod kumar34597.46%133.33%
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Directory: drivers/phy
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