diff options
| author | Rafael J. Wysocki <rafael.j.wysocki@intel.com> | 2026-03-04 21:16:48 +0300 |
|---|---|---|
| committer | Rafael J. Wysocki <rafael.j.wysocki@intel.com> | 2026-04-04 20:18:57 +0300 |
| commit | 6db176eb41ad51e48a97431c9fbc0680aa338e5f (patch) | |
| tree | 4ded6dc0dbba328e4ed26afc5dcde68ac52553f7 | |
| parent | 8a1e7f4b176401ae015516a3cf4a71af3615f7c2 (diff) | |
| download | linux-6db176eb41ad51e48a97431c9fbc0680aa338e5f.tar.xz | |
ACPI: TAD: Update the driver description comment
Update the preamble comment describing the driver to match the code
after previous changes along with the copyright information.
No functional impact.
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
Link: https://patch.msgid.link/23034847.EfDdHjke4D@rafael.j.wysocki
| -rw-r--r-- | drivers/acpi/acpi_tad.c | 13 |
1 files changed, 8 insertions, 5 deletions
diff --git a/drivers/acpi/acpi_tad.c b/drivers/acpi/acpi_tad.c index 395983b270ba..f1db2807f59c 100644 --- a/drivers/acpi/acpi_tad.c +++ b/drivers/acpi/acpi_tad.c @@ -2,12 +2,10 @@ /* * ACPI Time and Alarm (TAD) Device Driver * - * Copyright (C) 2018 Intel Corporation + * Copyright (C) 2018 - 2026 Intel Corporation * Author: Rafael J. Wysocki <rafael.j.wysocki@intel.com> * - * This driver is based on Section 9.18 of the ACPI 6.2 specification revision. - * - * It only supports the system wakeup capabilities of the TAD. + * This driver is based on ACPI 6.6, Section 9.17. * * Provided are sysfs attributes, available under the TAD platform device, * allowing user space to manage the AC and DC wakeup timers of the TAD: @@ -18,6 +16,11 @@ * * The wakeup events handling and power management of the TAD is expected to * be taken care of by the ACPI PM domain attached to its platform device. + * + * If the TAD supports the get/set real time features, as indicated by the + * capability mask returned by _GCP under the TAD object, additional sysfs + * attributes are created allowing the real time to be set and read and an RTC + * class device is registered under the TAD platform device. */ #include <linux/acpi.h> @@ -32,7 +35,7 @@ MODULE_DESCRIPTION("ACPI Time and Alarm (TAD) Device Driver"); MODULE_LICENSE("GPL v2"); MODULE_AUTHOR("Rafael J. Wysocki"); -/* ACPI TAD capability flags (ACPI 6.2, Section 9.18.2) */ +/* ACPI TAD capability flags (ACPI 6.6, Section 9.17.2) */ #define ACPI_TAD_AC_WAKE BIT(0) #define ACPI_TAD_DC_WAKE BIT(1) #define ACPI_TAD_RT BIT(2) |