diff options
Diffstat (limited to 'drivers/pwm/pwm-lpss-platform.c')
| -rw-r--r-- | drivers/pwm/pwm-lpss-platform.c | 68 | 
1 files changed, 68 insertions, 0 deletions
diff --git a/drivers/pwm/pwm-lpss-platform.c b/drivers/pwm/pwm-lpss-platform.c new file mode 100644 index 000000000000..18a9c880a76d --- /dev/null +++ b/drivers/pwm/pwm-lpss-platform.c @@ -0,0 +1,68 @@ +/* + * Intel Low Power Subsystem PWM controller driver + * + * Copyright (C) 2014, Intel Corporation + * + * Derived from the original pwm-lpss.c + * + * 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. + */ + +#include <linux/acpi.h> +#include <linux/kernel.h> +#include <linux/module.h> +#include <linux/platform_device.h> + +#include "pwm-lpss.h" + +static int pwm_lpss_probe_platform(struct platform_device *pdev) +{ +	const struct pwm_lpss_boardinfo *info; +	const struct acpi_device_id *id; +	struct pwm_lpss_chip *lpwm; +	struct resource *r; + +	id = acpi_match_device(pdev->dev.driver->acpi_match_table, &pdev->dev); +	if (!id) +		return -ENODEV; + +	info = (const struct pwm_lpss_boardinfo *)id->driver_data; +	r = platform_get_resource(pdev, IORESOURCE_MEM, 0); + +	lpwm = pwm_lpss_probe(&pdev->dev, r, info); +	if (IS_ERR(lpwm)) +		return PTR_ERR(lpwm); + +	platform_set_drvdata(pdev, lpwm); +	return 0; +} + +static int pwm_lpss_remove_platform(struct platform_device *pdev) +{ +	struct pwm_lpss_chip *lpwm = platform_get_drvdata(pdev); + +	return pwm_lpss_remove(lpwm); +} + +static const struct acpi_device_id pwm_lpss_acpi_match[] = { +	{ "80860F09", (unsigned long)&pwm_lpss_byt_info }, +	{ "80862288", (unsigned long)&pwm_lpss_bsw_info }, +	{ }, +}; +MODULE_DEVICE_TABLE(acpi, pwm_lpss_acpi_match); + +static struct platform_driver pwm_lpss_driver_platform = { +	.driver = { +		.name = "pwm-lpss", +		.acpi_match_table = pwm_lpss_acpi_match, +	}, +	.probe = pwm_lpss_probe_platform, +	.remove = pwm_lpss_remove_platform, +}; +module_platform_driver(pwm_lpss_driver_platform); + +MODULE_DESCRIPTION("PWM platform driver for Intel LPSS"); +MODULE_LICENSE("GPL v2"); +MODULE_ALIAS("platform:pwm-lpss");  | 
