diff options
| author | Rafael J. Wysocki <rafael.j.wysocki@intel.com> | 2026-02-23 16:29:37 +0100 |
|---|---|---|
| committer | Rafael J. Wysocki <rafael.j.wysocki@intel.com> | 2026-02-26 18:46:04 +0100 |
| commit | 1ae2f435350ec05224a39995c3a680aa6fdae5a5 (patch) | |
| tree | 3ddebdc85937a2d4240bea7a5e368d14d5f0609b /drivers | |
| parent | 6cee29ad9d7e400d39ae0b1a54447fedcb62eecd (diff) | |
ACPI: x86: cmos_rtc: Create a CMOS RTC platform device
Make the CMOS RTC ACPI scan handler create a platform device that will
be used subsequently by rtc-cmos for driver binding on x86 systems with
ACPI and update add_rtc_cmos() to skip registering a fallback platform
device for the CMOS RTC when the above one has been registered.
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
Acked-by: Dave Hansen <dave.hansen@linux.intel.com> # x86
Link: https://patch.msgid.link/1962427.tdWV9SEqCh@rafael.j.wysocki
Diffstat (limited to 'drivers')
| -rw-r--r-- | drivers/acpi/x86/cmos_rtc.c | 8 |
1 files changed, 8 insertions, 0 deletions
diff --git a/drivers/acpi/x86/cmos_rtc.c b/drivers/acpi/x86/cmos_rtc.c index 45db7e51cbe6..bdd66dfd4a44 100644 --- a/drivers/acpi/x86/cmos_rtc.c +++ b/drivers/acpi/x86/cmos_rtc.c @@ -24,6 +24,8 @@ static const struct acpi_device_id acpi_cmos_rtc_ids[] = { {} }; +bool cmos_rtc_platform_device_present; + static bool cmos_rtc_space_handler_present __read_mostly; static acpi_status acpi_cmos_rtc_space_handler(u32 function, @@ -103,6 +105,12 @@ static int acpi_cmos_rtc_attach(struct acpi_device *adev, if (ret < 0) return ret; + if (IS_ERR_OR_NULL(acpi_create_platform_device(adev, NULL))) { + pr_err("Failed to create CMOS-RTC platform device\n"); + return 0; + } else { + cmos_rtc_platform_device_present = true; + } return 1; } |