From: Ma Jun <majun...@huawei.com> Add the platform device driver for mbigen chip v1. This patch just same as mbigen v2.
Signed-off-by: Ma Jun <majun...@huawei.com> --- drivers/irqchip/Makefile | 2 +- drivers/irqchip/irq-mbigen-v1.c | 76 +++++++++++++++++++++++++++++++++++++++ 2 files changed, 77 insertions(+), 1 deletions(-) create mode 100644 drivers/irqchip/irq-mbigen-v1.c diff --git a/drivers/irqchip/Makefile b/drivers/irqchip/Makefile index d91d99d..d4b9c7f 100644 --- a/drivers/irqchip/Makefile +++ b/drivers/irqchip/Makefile @@ -25,7 +25,7 @@ obj-$(CONFIG_REALVIEW_DT) += irq-gic-realview.o obj-$(CONFIG_ARM_GIC_V2M) += irq-gic-v2m.o obj-$(CONFIG_ARM_GIC_V3) += irq-gic-v3.o irq-gic-common.o obj-$(CONFIG_ARM_GIC_V3_ITS) += irq-gic-v3-its.o irq-gic-v3-its-pci-msi.o irq-gic-v3-its-platform-msi.o -obj-$(CONFIG_HISILICON_IRQ_MBIGEN) += irq-mbigen.o +obj-$(CONFIG_HISILICON_IRQ_MBIGEN) += irq-mbigen.o irq-mbigen-v1.o obj-$(CONFIG_ARM_NVIC) += irq-nvic.o obj-$(CONFIG_ARM_VIC) += irq-vic.o obj-$(CONFIG_ATMEL_AIC_IRQ) += irq-atmel-aic-common.o irq-atmel-aic.o diff --git a/drivers/irqchip/irq-mbigen-v1.c b/drivers/irqchip/irq-mbigen-v1.c new file mode 100644 index 0000000..9445658 --- /dev/null +++ b/drivers/irqchip/irq-mbigen-v1.c @@ -0,0 +1,76 @@ +/* + * Copyright (C) 2015 Hisilicon Limited, All Rights Reserved. + * Author: Jun Ma <majun...@huawei.com> + * Author: Yun Wu <wuyun...@huawei.com> + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License version 2 as + * published by the Free Software Foundation. + * + * This program 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/>. + */ + +#include <linux/module.h> +#include <linux/of_platform.h> +#include <linux/platform_device.h> +#include <linux/slab.h> + +/** + * struct mbigen_device - holds the information of mbigen device. + * + * @pdev: pointer to the platform device structure of mbigen chip. + * @base: mapped address of this mbigen chip. + */ +struct mbigen_device { + struct platform_device *pdev; + void __iomem *base; +}; + +static int mbigen_device_probe(struct platform_device *pdev) +{ + struct mbigen_device *mgn_chip; + struct resource *res; + + mgn_chip = devm_kzalloc(&pdev->dev, sizeof(*mgn_chip), GFP_KERNEL); + if (!mgn_chip) + return -ENOMEM; + + mgn_chip->pdev = pdev; + + res = platform_get_resource(pdev, IORESOURCE_MEM, 0); + mgn_chip->base = devm_ioremap_resource(&pdev->dev, res); + if (IS_ERR(mgn_chip->base)) + return PTR_ERR(mgn_chip->base); + + platform_set_drvdata(pdev, mgn_chip); + + return 0; +} + +static const struct of_device_id mbigen_of_match[] = { + { .compatible = "hisilicon,mbigen-v1" }, + { /* END */ } +}; +MODULE_DEVICE_TABLE(of, mbigen_of_match); + +static struct platform_driver mbigen_platform_driver = { + .driver = { + .name = "Hisilicon MBIGEN-V1", + .owner = THIS_MODULE, + .of_match_table = mbigen_of_match, + }, + .probe = mbigen_device_probe, +}; + +module_platform_driver(mbigen_platform_driver); + +MODULE_AUTHOR("Jun Ma <majun...@huawei.com>"); +MODULE_AUTHOR("Yun Wu <wuyun...@huawei.com>"); +MODULE_LICENSE("GPL"); +MODULE_DESCRIPTION("Hisilicon MBI Generator driver"); -- 1.7.1
