diff options
Diffstat (limited to 'drivers/net/ethernet/amd/xgbe/xgbe-i2c.c')
| -rw-r--r-- | drivers/net/ethernet/amd/xgbe/xgbe-i2c.c | 133 |
1 files changed, 12 insertions, 121 deletions
diff --git a/drivers/net/ethernet/amd/xgbe/xgbe-i2c.c b/drivers/net/ethernet/amd/xgbe/xgbe-i2c.c index a9ccc4258ee5..d40011e8ddf2 100644 --- a/drivers/net/ethernet/amd/xgbe/xgbe-i2c.c +++ b/drivers/net/ethernet/amd/xgbe/xgbe-i2c.c @@ -1,117 +1,8 @@ +// SPDX-License-Identifier: (GPL-2.0-or-later OR BSD-3-Clause) /* - * AMD 10Gb Ethernet driver - * - * This file is available to you under your choice of the following two - * licenses: - * - * License 1: GPLv2 - * - * Copyright (c) 2016 Advanced Micro Devices, Inc. - * - * This file is free software; you may copy, redistribute and/or modify - * it under the terms of the GNU General Public License as published by - * the Free Software Foundation, either version 2 of the License, or (at - * your option) any later version. - * - * This file is distributed in the hope that it will be useful, but - * WITHOUT ANY WARRANTY; without even the implied warranty of - * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU - * General Public License for more details. - * - * You should have received a copy of the GNU General Public License - * along with this program. If not, see <http://www.gnu.org/licenses/>. - * - * This file incorporates work covered by the following copyright and - * permission notice: - * The Synopsys DWC ETHER XGMAC Software Driver and documentation - * (hereinafter "Software") is an unsupported proprietary work of Synopsys, - * Inc. unless otherwise expressly agreed to in writing between Synopsys - * and you. - * - * The Software IS NOT an item of Licensed Software or Licensed Product - * under any End User Software License Agreement or Agreement for Licensed - * Product with Synopsys or any supplement thereto. Permission is hereby - * granted, free of charge, to any person obtaining a copy of this software - * annotated with this license and the Software, to deal in the Software - * without restriction, including without limitation the rights to use, - * copy, modify, merge, publish, distribute, sublicense, and/or sell copies - * of the Software, and to permit persons to whom the Software is furnished - * to do so, subject to the following conditions: - * - * The above copyright notice and this permission notice shall be included - * in all copies or substantial portions of the Software. - * - * THIS SOFTWARE IS BEING DISTRIBUTED BY SYNOPSYS SOLELY ON AN "AS IS" - * BASIS AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED - * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A - * PARTICULAR PURPOSE ARE HEREBY DISCLAIMED. IN NO EVENT SHALL SYNOPSYS - * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR - * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF - * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS - * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN - * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) - * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF - * THE POSSIBILITY OF SUCH DAMAGE. - * - * - * License 2: Modified BSD - * - * Copyright (c) 2016 Advanced Micro Devices, Inc. - * All rights reserved. - * - * Redistribution and use in source and binary forms, with or without - * modification, are permitted provided that the following conditions are met: - * * Redistributions of source code must retain the above copyright - * notice, this list of conditions and the following disclaimer. - * * Redistributions in binary form must reproduce the above copyright - * notice, this list of conditions and the following disclaimer in the - * documentation and/or other materials provided with the distribution. - * * Neither the name of Advanced Micro Devices, Inc. nor the - * names of its contributors may be used to endorse or promote products - * derived from this software without specific prior written permission. - * - * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" - * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE - * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE - * ARE DISCLAIMED. IN NO EVENT SHALL <COPYRIGHT HOLDER> BE LIABLE FOR ANY - * DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES - * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; - * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND - * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT - * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF - * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. - * - * This file incorporates work covered by the following copyright and - * permission notice: - * The Synopsys DWC ETHER XGMAC Software Driver and documentation - * (hereinafter "Software") is an unsupported proprietary work of Synopsys, - * Inc. unless otherwise expressly agreed to in writing between Synopsys - * and you. - * - * The Software IS NOT an item of Licensed Software or Licensed Product - * under any End User Software License Agreement or Agreement for Licensed - * Product with Synopsys or any supplement thereto. Permission is hereby - * granted, free of charge, to any person obtaining a copy of this software - * annotated with this license and the Software, to deal in the Software - * without restriction, including without limitation the rights to use, - * copy, modify, merge, publish, distribute, sublicense, and/or sell copies - * of the Software, and to permit persons to whom the Software is furnished - * to do so, subject to the following conditions: - * - * The above copyright notice and this permission notice shall be included - * in all copies or substantial portions of the Software. - * - * THIS SOFTWARE IS BEING DISTRIBUTED BY SYNOPSYS SOLELY ON AN "AS IS" - * BASIS AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED - * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A - * PARTICULAR PURPOSE ARE HEREBY DISCLAIMED. IN NO EVENT SHALL SYNOPSYS - * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR - * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF - * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS - * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN - * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) - * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF - * THE POSSIBILITY OF SUCH DAMAGE. + * Copyright (c) 2014-2025, Advanced Micro Devices, Inc. + * Copyright (c) 2014, Synopsys, Inc. + * All rights reserved */ #include <linux/module.h> @@ -274,9 +165,9 @@ static void xgbe_i2c_clear_isr_interrupts(struct xgbe_prv_data *pdata, XI2C_IOREAD(pdata, IC_CLR_STOP_DET); } -static void xgbe_i2c_isr_task(struct tasklet_struct *t) +static void xgbe_i2c_isr_bh_work(struct work_struct *work) { - struct xgbe_prv_data *pdata = from_tasklet(pdata, t, tasklet_i2c); + struct xgbe_prv_data *pdata = from_work(pdata, work, i2c_bh_work); struct xgbe_i2c_op_state *state = &pdata->i2c.op_state; unsigned int isr; @@ -321,10 +212,10 @@ static irqreturn_t xgbe_i2c_isr(int irq, void *data) { struct xgbe_prv_data *pdata = (struct xgbe_prv_data *)data; - if (pdata->isr_as_tasklet) - tasklet_schedule(&pdata->tasklet_i2c); + if (pdata->isr_as_bh_work) + queue_work(system_bh_wq, &pdata->i2c_bh_work); else - xgbe_i2c_isr_task(&pdata->tasklet_i2c); + xgbe_i2c_isr_bh_work(&pdata->i2c_bh_work); return IRQ_HANDLED; } @@ -369,7 +260,7 @@ static void xgbe_i2c_set_target(struct xgbe_prv_data *pdata, unsigned int addr) static irqreturn_t xgbe_i2c_combined_isr(struct xgbe_prv_data *pdata) { - xgbe_i2c_isr_task(&pdata->tasklet_i2c); + xgbe_i2c_isr_bh_work(&pdata->i2c_bh_work); return IRQ_HANDLED; } @@ -449,7 +340,7 @@ static void xgbe_i2c_stop(struct xgbe_prv_data *pdata) if (pdata->dev_irq != pdata->i2c_irq) { devm_free_irq(pdata->dev, pdata->i2c_irq, pdata); - tasklet_kill(&pdata->tasklet_i2c); + cancel_work_sync(&pdata->i2c_bh_work); } } @@ -464,7 +355,7 @@ static int xgbe_i2c_start(struct xgbe_prv_data *pdata) /* If we have a separate I2C irq, enable it */ if (pdata->dev_irq != pdata->i2c_irq) { - tasklet_setup(&pdata->tasklet_i2c, xgbe_i2c_isr_task); + INIT_WORK(&pdata->i2c_bh_work, xgbe_i2c_isr_bh_work); ret = devm_request_irq(pdata->dev, pdata->i2c_irq, xgbe_i2c_isr, 0, pdata->i2c_name, |