diff options
Diffstat (limited to 'drivers/net/ethernet/freescale/fman/fman_port.c')
| -rw-r--r-- | drivers/net/ethernet/freescale/fman/fman_port.c | 77 |
1 files changed, 31 insertions, 46 deletions
diff --git a/drivers/net/ethernet/freescale/fman/fman_port.c b/drivers/net/ethernet/freescale/fman/fman_port.c index 87b26f063cc8..ab90fe2bee5e 100644 --- a/drivers/net/ethernet/freescale/fman/fman_port.c +++ b/drivers/net/ethernet/freescale/fman/fman_port.c @@ -1,33 +1,6 @@ +// SPDX-License-Identifier: BSD-3-Clause OR GPL-2.0-or-later /* * Copyright 2008 - 2015 Freescale Semiconductor Inc. - * - * 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 Freescale Semiconductor nor the - * names of its contributors may be used to endorse or promote products - * derived from this software without specific prior written permission. - * - * - * ALTERNATIVELY, this software may be distributed under the terms of the - * GNU General Public License ("GPL") as published by the Free Software - * Foundation, either version 2 of that License or (at your option) any - * later version. - * - * THIS SOFTWARE IS PROVIDED BY Freescale Semiconductor ``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 Freescale Semiconductor 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. */ #define pr_fmt(fmt) KBUILD_MODNAME ": " fmt @@ -1344,10 +1317,10 @@ int fman_port_config(struct fman_port *port, struct fman_port_params *params) switch (port->port_type) { case FMAN_PORT_TYPE_RX: set_rx_dflt_cfg(port, params); - /* fall through */ + fallthrough; case FMAN_PORT_TYPE_TX: set_tx_dflt_cfg(port, params, &port->dts_params); - /* fall through */ + fallthrough; default: set_dflt_cfg(port, params); } @@ -1410,9 +1383,11 @@ err_port_cfg: } EXPORT_SYMBOL(fman_port_config); -/** +/* * fman_port_use_kg_hash - * port: A pointer to a FM Port module. + * @port: A pointer to a FM Port module. + * @enable: enable or disable + * * Sets the HW KeyGen or the BMI as HW Parser next engine, enabling * or bypassing the KeyGen hashing of Rx traffic */ @@ -1430,7 +1405,8 @@ EXPORT_SYMBOL(fman_port_use_kg_hash); /** * fman_port_init - * port: A pointer to a FM Port module. + * @port: A pointer to a FM Port module. + * * Initializes the FM PORT module by defining the software structure and * configuring the hardware registers. * @@ -1524,8 +1500,8 @@ EXPORT_SYMBOL(fman_port_init); /** * fman_port_cfg_buf_prefix_content - * @port A pointer to a FM Port module. - * @buffer_prefix_content A structure of parameters describing + * @port: A pointer to a FM Port module. + * @buffer_prefix_content: A structure of parameters describing * the structure of the buffer. * Out parameter: * Start margin - offset of data from @@ -1570,7 +1546,7 @@ EXPORT_SYMBOL(fman_port_cfg_buf_prefix_content); /** * fman_port_disable - * port: A pointer to a FM Port module. + * @port: A pointer to a FM Port module. * * Gracefully disable an FM port. The port will not start new tasks after all * tasks associated with the port are terminated. @@ -1651,7 +1627,7 @@ EXPORT_SYMBOL(fman_port_disable); /** * fman_port_enable - * port: A pointer to a FM Port module. + * @port: A pointer to a FM Port module. * * A runtime routine provided to allow disable/enable of port. * @@ -1697,7 +1673,7 @@ EXPORT_SYMBOL(fman_port_enable); /** * fman_port_bind - * dev: FMan Port OF device pointer + * @dev: FMan Port OF device pointer * * Bind to a specific FMan Port. * @@ -1713,7 +1689,7 @@ EXPORT_SYMBOL(fman_port_bind); /** * fman_port_get_qman_channel_id - * port: Pointer to the FMan port devuce + * @port: Pointer to the FMan port devuce * * Get the QMan channel ID for the specific port * @@ -1727,7 +1703,7 @@ EXPORT_SYMBOL(fman_port_get_qman_channel_id); /** * fman_port_get_device - * port: Pointer to the FMan port device + * @port: Pointer to the FMan port device * * Get the 'struct device' associated to the specified FMan port device * @@ -1767,6 +1743,7 @@ static int fman_port_probe(struct platform_device *of_dev) struct fman_port *port; struct fman *fman; struct device_node *fm_node, *port_node; + struct platform_device *fm_pdev; struct resource res; struct resource *dev_res; u32 val; @@ -1791,19 +1768,25 @@ static int fman_port_probe(struct platform_device *of_dev) goto return_err; } - fman = dev_get_drvdata(&of_find_device_by_node(fm_node)->dev); + fm_pdev = of_find_device_by_node(fm_node); of_node_put(fm_node); - if (!fman) { + if (!fm_pdev) { err = -EINVAL; goto return_err; } + fman = dev_get_drvdata(&fm_pdev->dev); + if (!fman) { + err = -EINVAL; + goto put_device; + } + err = of_property_read_u32(port_node, "cell-index", &val); if (err) { dev_err(port->dev, "%s: reading cell-index for %pOF failed\n", __func__, port_node); err = -EINVAL; - goto return_err; + goto put_device; } port_id = (u8)val; port->dts_params.id = port_id; @@ -1837,7 +1820,7 @@ static int fman_port_probe(struct platform_device *of_dev) } else { dev_err(port->dev, "%s: Illegal port type\n", __func__); err = -EINVAL; - goto return_err; + goto put_device; } port->dts_params.type = port_type; @@ -1851,7 +1834,7 @@ static int fman_port_probe(struct platform_device *of_dev) dev_err(port->dev, "%s: incorrect qman-channel-id\n", __func__); err = -EINVAL; - goto return_err; + goto put_device; } port->dts_params.qman_channel_id = qman_channel_id; } @@ -1861,7 +1844,7 @@ static int fman_port_probe(struct platform_device *of_dev) dev_err(port->dev, "%s: of_address_to_resource() failed\n", __func__); err = -ENOMEM; - goto return_err; + goto put_device; } port->dts_params.fman = fman; @@ -1886,6 +1869,8 @@ static int fman_port_probe(struct platform_device *of_dev) return 0; +put_device: + put_device(&fm_pdev->dev); return_err: of_node_put(port_node); free_port: |