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SubjectRe: [PATCH V4 5/6] misc/pvpanic: add pvpanic mmio driver
On Thu, Jan 24, 2019 at 10:17 AM Peng Hao <peng.hao2@zte.com.cn> wrote:
>
> Make pvpanic mmio driver as separate file and modify code
> in order to adapt the framework.

This should go as patch 3

>
> Signed-off-by: Peng Hao <peng.hao2@zte.com.cn>
> ---
> drivers/misc/pvpanic/Kconfig | 7 ++++++
> drivers/misc/pvpanic/Makefile | 1 +
> drivers/misc/pvpanic/pvpanic-of.c | 53 +++++++++++++++++++++++++++++++++++++++
> 3 files changed, 61 insertions(+)
> create mode 100644 drivers/misc/pvpanic/pvpanic-of.c
>
> diff --git a/drivers/misc/pvpanic/Kconfig b/drivers/misc/pvpanic/Kconfig
> index 1dcfe20..14074af 100644
> --- a/drivers/misc/pvpanic/Kconfig
> +++ b/drivers/misc/pvpanic/Kconfig
> @@ -16,5 +16,12 @@ config PVPANIC_ACPI
> This driver is one specific driver for pvpanic driver framework.
> It provides an acpi device as pvpanic device.
>
> +config PVPANIC_OF
> + tristate "pvpanic mmio driver"
> + depends on OF
> + help
> + This driver is one specific driver for pvpanic driver framework.
> + It provides a mmio device as pvpanic device.
> +
> endif
>
> diff --git a/drivers/misc/pvpanic/Makefile b/drivers/misc/pvpanic/Makefile
> index c5b73ca..63ef0db 100644
> --- a/drivers/misc/pvpanic/Makefile
> +++ b/drivers/misc/pvpanic/Makefile
> @@ -4,3 +4,4 @@
>
> obj-$(CONFIG_PVPANIC) += pvpanic.o
> obj-$(CONFIG_PVPANIC_ACPI) += pvpanic-acpi.o
> +obj-$(CONFIG_PVPANIC_OF) += pvpanic-of.o
> diff --git a/drivers/misc/pvpanic/pvpanic-of.c b/drivers/misc/pvpanic/pvpanic-of.c
> new file mode 100644
> index 0000000..73ca5f3
> --- /dev/null
> +++ b/drivers/misc/pvpanic/pvpanic-of.c
> @@ -0,0 +1,53 @@
> +// SPDX-License-Identifier: GPL-2.0-or-later
> +/*
> + * pvpanic of driver.
> + *
> + * Copyright (C) 2019 ZTE Ltd.
> + * Author: Peng Hao <peng.hao2@zte.com.cn>
> + */
> +
> +#include <linux/kernel.h>
> +#include <linux/module.h>
> +#include <linux/of.h>
> +#include <linux/of_address.h>
> +#include <linux/platform_device.h>
> +#include <linux/types.h>
> +#include "pvpanic.h"
> +
> +static int pvpanic_mmio_probe(struct platform_device *pdev)
> +{
> + struct resource *res;
> + int ret;
> +
> + res = platform_get_resource(pdev, IORESOURCE_MEM, 0);
> + if (!res)
> + return -EINVAL;
> +
> + ret = pvpanic_add_device(&pdev->dev, res);
> + if (ret)
> + return -ENODEV;
> +
> + return 0;
> +}
> +
> +static int pvpanic_mmio_remove(struct platform_device *pdev)
> +{
> + pvpanic_remove_device();
> + return 0;
> +}
> +
> +static const struct of_device_id pvpanic_mmio_match[] = {
> + { .compatible = "qemu,pvpanic-mmio", },
> + {}
> +};
> +
> +static struct platform_driver pvpanic_mmio_driver = {
> + .driver = {
> + .name = "pvpanic-mmio",
> + .of_match_table = pvpanic_mmio_match,
> + },
> + .probe = pvpanic_mmio_probe,
> + .remove = pvpanic_mmio_remove,
> +};
> +
> +module_platform_driver(pvpanic_mmio_driver);
> --
> 1.8.3.1
>


--
With Best Regards,
Andy Shevchenko

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