diff options
Diffstat (limited to 'drivers/fpga/altera-fpga2sdram.c')
| -rw-r--r-- | drivers/fpga/altera-fpga2sdram.c | 40 |
1 files changed, 13 insertions, 27 deletions
diff --git a/drivers/fpga/altera-fpga2sdram.c b/drivers/fpga/altera-fpga2sdram.c index d4eeb74388da..e41492988dd6 100644 --- a/drivers/fpga/altera-fpga2sdram.c +++ b/drivers/fpga/altera-fpga2sdram.c @@ -1,19 +1,8 @@ +// SPDX-License-Identifier: GPL-2.0 /* * FPGA to SDRAM Bridge Driver for Altera SoCFPGA Devices * * Copyright (C) 2013-2016 Altera Corporation, All Rights Reserved. - * - * This program is free software; you can redistribute it and/or modify it - * under the terms and conditions of the GNU General Public License, - * version 2, as published by the Free Software Foundation. - * - * This program is distributed in the hope 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/>. */ /* @@ -38,7 +27,7 @@ #include <linux/kernel.h> #include <linux/mfd/syscon.h> #include <linux/module.h> -#include <linux/of_platform.h> +#include <linux/of.h> #include <linux/regmap.h> #define ALT_SDR_CTL_FPGAPORTRST_OFST 0x80 @@ -86,12 +75,6 @@ static int alt_fpga2sdram_enable_set(struct fpga_bridge *bridge, bool enable) return _alt_fpga2sdram_enable_set(bridge->priv, enable); } -struct prop_map { - char *prop_name; - u32 *prop_value; - u32 prop_max; -}; - static const struct fpga_bridge_ops altera_fpga2sdram_br_ops = { .enable_set = alt_fpga2sdram_enable_set, .enable_show = alt_fpga2sdram_enable_show, @@ -106,6 +89,7 @@ static int alt_fpga_bridge_probe(struct platform_device *pdev) { struct device *dev = &pdev->dev; struct alt_fpga2sdram_data *priv; + struct fpga_bridge *br; u32 enable; struct regmap *sysmgr; int ret = 0; @@ -131,10 +115,12 @@ static int alt_fpga_bridge_probe(struct platform_device *pdev) /* Get f2s bridge configuration saved in handoff register */ regmap_read(sysmgr, SYSMGR_ISWGRP_HANDOFF3, &priv->mask); - ret = fpga_bridge_register(dev, F2S_BRIDGE_NAME, - &altera_fpga2sdram_br_ops, priv); - if (ret) - return ret; + br = fpga_bridge_register(dev, F2S_BRIDGE_NAME, + &altera_fpga2sdram_br_ops, priv); + if (IS_ERR(br)) + return PTR_ERR(br); + + platform_set_drvdata(pdev, br); dev_info(dev, "driver initialized with handoff %08x\n", priv->mask); @@ -146,7 +132,7 @@ static int alt_fpga_bridge_probe(struct platform_device *pdev) (enable ? "enabling" : "disabling")); ret = _alt_fpga2sdram_enable_set(priv, enable); if (ret) { - fpga_bridge_unregister(&pdev->dev); + fpga_bridge_unregister(br); return ret; } } @@ -155,11 +141,11 @@ static int alt_fpga_bridge_probe(struct platform_device *pdev) return ret; } -static int alt_fpga_bridge_remove(struct platform_device *pdev) +static void alt_fpga_bridge_remove(struct platform_device *pdev) { - fpga_bridge_unregister(&pdev->dev); + struct fpga_bridge *br = platform_get_drvdata(pdev); - return 0; + fpga_bridge_unregister(br); } MODULE_DEVICE_TABLE(of, altera_fpga_of_match); |