| Message ID | 20241107060254.17615-3-mario.limonciello@amd.com (mailing list archive) |
|---|---|
| State | Superseded, archived |
| Headers | show |
| Series | Add support for binding ACPI platform profile to multiple drivers | expand |
Am 07.11.24 um 07:02 schrieb Mario Limonciello: > In order to have a device for the platform profile core to reference > create a platform device for dell-pc. > > While doing this change the memory allocation for the thermal handler > to be device managed to follow the lifecycle of that device. > > Reviewed-by: Armin Wolf <W_Armin@gmx.de> > Tested-by: Mark Pearson <mpearson-lenovo@squebb.ca> > Reviewed-by: Ilpo Järvinen <ilpo.jarvinen@linux.intel.com> > Signed-off-by: Mario Limonciello <mario.limonciello@amd.com> > --- > v5: > * use platform_device_register_simple() > --- > drivers/platform/x86/dell/dell-pc.c | 32 +++++++++++++++++++++-------- > 1 file changed, 23 insertions(+), 9 deletions(-) > > diff --git a/drivers/platform/x86/dell/dell-pc.c b/drivers/platform/x86/dell/dell-pc.c > index 3cf79e55e3129..0cd9b26572b61 100644 > --- a/drivers/platform/x86/dell/dell-pc.c > +++ b/drivers/platform/x86/dell/dell-pc.c > @@ -18,10 +18,13 @@ > #include <linux/kernel.h> > #include <linux/module.h> > #include <linux/platform_profile.h> > +#include <linux/platform_device.h> > #include <linux/slab.h> > > #include "dell-smbios.h" > > +static struct platform_device *platform_device; > + > static const struct dmi_system_id dell_device_table[] __initconst = { > { > .ident = "Dell Inc.", > @@ -244,9 +247,15 @@ static int thermal_init(void) > if (!supported_modes) > return 0; > > - thermal_handler = kzalloc(sizeof(*thermal_handler), GFP_KERNEL); > - if (!thermal_handler) > + platform_device = platform_device_register_simple("dell-pc", -1, NULL, 0); Please keep using PLATFORM_DEVID_NONE here. Thanks, Armin Wolf > + if (!platform_device) > return -ENOMEM; > + > + thermal_handler = devm_kzalloc(&platform_device->dev, sizeof(*thermal_handler), GFP_KERNEL); > + if (!thermal_handler) { > + ret = -ENOMEM; > + goto cleanup_platform_device; > + } > thermal_handler->name = "dell-pc"; > thermal_handler->profile_get = thermal_platform_profile_get; > thermal_handler->profile_set = thermal_platform_profile_set; > @@ -262,20 +271,25 @@ static int thermal_init(void) > > /* Clean up if failed */ > ret = platform_profile_register(thermal_handler); > - if (ret) { > - kfree(thermal_handler); > - thermal_handler = NULL; > - } > + if (ret) > + goto cleanup_thermal_handler; > + > + return 0; > + > +cleanup_thermal_handler: > + thermal_handler = NULL; > + > +cleanup_platform_device: > + platform_device_unregister(platform_device); > > return ret; > } > > static void thermal_cleanup(void) > { > - if (thermal_handler) { > + if (thermal_handler) > platform_profile_remove(); > - kfree(thermal_handler); > - } > + platform_device_unregister(platform_device); > } > > static int __init dell_init(void)
diff --git a/drivers/platform/x86/dell/dell-pc.c b/drivers/platform/x86/dell/dell-pc.c index 3cf79e55e3129..0cd9b26572b61 100644 --- a/drivers/platform/x86/dell/dell-pc.c +++ b/drivers/platform/x86/dell/dell-pc.c @@ -18,10 +18,13 @@ #include <linux/kernel.h> #include <linux/module.h> #include <linux/platform_profile.h> +#include <linux/platform_device.h> #include <linux/slab.h> #include "dell-smbios.h" +static struct platform_device *platform_device; + static const struct dmi_system_id dell_device_table[] __initconst = { { .ident = "Dell Inc.", @@ -244,9 +247,15 @@ static int thermal_init(void) if (!supported_modes) return 0; - thermal_handler = kzalloc(sizeof(*thermal_handler), GFP_KERNEL); - if (!thermal_handler) + platform_device = platform_device_register_simple("dell-pc", -1, NULL, 0); + if (!platform_device) return -ENOMEM; + + thermal_handler = devm_kzalloc(&platform_device->dev, sizeof(*thermal_handler), GFP_KERNEL); + if (!thermal_handler) { + ret = -ENOMEM; + goto cleanup_platform_device; + } thermal_handler->name = "dell-pc"; thermal_handler->profile_get = thermal_platform_profile_get; thermal_handler->profile_set = thermal_platform_profile_set; @@ -262,20 +271,25 @@ static int thermal_init(void) /* Clean up if failed */ ret = platform_profile_register(thermal_handler); - if (ret) { - kfree(thermal_handler); - thermal_handler = NULL; - } + if (ret) + goto cleanup_thermal_handler; + + return 0; + +cleanup_thermal_handler: + thermal_handler = NULL; + +cleanup_platform_device: + platform_device_unregister(platform_device); return ret; } static void thermal_cleanup(void) { - if (thermal_handler) { + if (thermal_handler) platform_profile_remove(); - kfree(thermal_handler); - } + platform_device_unregister(platform_device); } static int __init dell_init(void)