From 19593a1fb1f6718406afca5b867dab184289d406 Mon Sep 17 00:00:00 2001 From: Aaron Lu Date: Tue, 19 Nov 2013 16:59:20 +0800 Subject: [PATCH] ACPI / fan: convert to platform driver Convert ACPI fan driver to a platform driver for the purpose of phasing out ACPI bus. Signed-off-by: Aaron Lu Signed-off-by: Zhang Rui --- drivers/acpi/fan.c | 62 +++++++++++++++++++++------------------------- 1 file changed, 28 insertions(+), 34 deletions(-) diff --git a/drivers/acpi/fan.c b/drivers/acpi/fan.c index fff9696bea25..8a5b450576df 100644 --- a/drivers/acpi/fan.c +++ b/drivers/acpi/fan.c @@ -30,17 +30,14 @@ #include #include #include - -#define PREFIX "ACPI: " - -#define ACPI_FAN_CLASS "fan" +#include MODULE_AUTHOR("Paul Diefenbaugh"); MODULE_DESCRIPTION("ACPI Fan Driver"); MODULE_LICENSE("GPL"); -static int acpi_fan_add(struct acpi_device *device); -static int acpi_fan_remove(struct acpi_device *device); +static int acpi_fan_probe(struct platform_device *pdev); +static int acpi_fan_remove(struct platform_device *pdev); static const struct acpi_device_id fan_device_ids[] = { {"PNP0C0B", 0}, @@ -62,15 +59,14 @@ static struct dev_pm_ops acpi_fan_pm = { #define FAN_PM_OPS_PTR NULL #endif -static struct acpi_driver acpi_fan_driver = { - .name = "fan", - .class = ACPI_FAN_CLASS, - .ids = fan_device_ids, - .ops = { - .add = acpi_fan_add, - .remove = acpi_fan_remove, - }, - .drv.pm = FAN_PM_OPS_PTR, +static struct platform_driver acpi_fan_driver = { + .probe = acpi_fan_probe, + .remove = acpi_fan_remove, + .driver = { + .name = "acpi-fan", + .acpi_match_table = fan_device_ids, + .pm = FAN_PM_OPS_PTR, + }, }; /* thermal cooling device callbacks */ @@ -126,17 +122,15 @@ static const struct thermal_cooling_device_ops fan_cooling_ops = { Driver Interface -------------------------------------------------------------------------- */ -static int acpi_fan_add(struct acpi_device *device) +static int acpi_fan_probe(struct platform_device *pdev) { int result = 0; struct thermal_cooling_device *cdev; - - strcpy(acpi_device_name(device), "Fan"); - strcpy(acpi_device_class(device), ACPI_FAN_CLASS); + struct acpi_device *device = ACPI_COMPANION(&pdev->dev); result = acpi_device_update_power(device, NULL); if (result) { - printk(KERN_ERR PREFIX "Setting initial power state\n"); + dev_err(&pdev->dev, "Setting initial power state\n"); goto end; } @@ -147,24 +141,24 @@ static int acpi_fan_add(struct acpi_device *device) goto end; } - dev_dbg(&device->dev, "registered as cooling_device%d\n", cdev->id); + dev_dbg(&pdev->dev, "registered as cooling_device%d\n", cdev->id); - device->driver_data = cdev; - result = sysfs_create_link(&device->dev.kobj, + platform_set_drvdata(pdev, cdev); + result = sysfs_create_link(&pdev->dev.kobj, &cdev->device.kobj, "thermal_cooling"); if (result) - dev_err(&device->dev, "Failed to create sysfs link " + dev_err(&pdev->dev, "Failed to create sysfs link " "'thermal_cooling'\n"); result = sysfs_create_link(&cdev->device.kobj, - &device->dev.kobj, + &pdev->dev.kobj, "device"); if (result) - dev_err(&device->dev, "Failed to create sysfs link " + dev_err(&pdev->dev, "Failed to create sysfs link " "'device'\n"); - printk(KERN_INFO PREFIX "%s [%s] (%s)\n", + dev_info(&pdev->dev, "%s [%s] (%s)\n", acpi_device_name(device), acpi_device_bid(device), !device->power.state ? "on" : "off"); @@ -172,11 +166,11 @@ end: return result; } -static int acpi_fan_remove(struct acpi_device *device) +static int acpi_fan_remove(struct platform_device *pdev) { - struct thermal_cooling_device *cdev = acpi_driver_data(device); + struct thermal_cooling_device *cdev = platform_get_drvdata(pdev); - sysfs_remove_link(&device->dev.kobj, "thermal_cooling"); + sysfs_remove_link(&pdev->dev.kobj, "thermal_cooling"); sysfs_remove_link(&cdev->device.kobj, "device"); thermal_cooling_device_unregister(cdev); @@ -186,7 +180,7 @@ static int acpi_fan_remove(struct acpi_device *device) #ifdef CONFIG_PM_SLEEP static int acpi_fan_suspend(struct device *dev) { - acpi_device_set_power(to_acpi_device(dev), ACPI_STATE_D0); + acpi_device_set_power(ACPI_COMPANION(dev), ACPI_STATE_D0); return AE_OK; } @@ -195,12 +189,12 @@ static int acpi_fan_resume(struct device *dev) { int result; - result = acpi_device_update_power(to_acpi_device(dev), NULL); + result = acpi_device_update_power(ACPI_COMPANION(dev), NULL); if (result) - printk(KERN_ERR PREFIX "Error updating fan power state\n"); + dev_err(dev, "Error updating fan power state\n"); return result; } #endif -module_acpi_driver(acpi_fan_driver); +module_platform_driver(acpi_fan_driver); -- 2.39.5