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platform: cznic: turris-omnia-mcu: Make poweroff and wakeup code optional

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Make the system poweroff and RTC wakeup part of the driver optional,
under a boolean config option. Move the dependency to RTC_CLASS to this
new option.

This makes the turris-omnia-mcu driver available for compilation even if
RTC_CLASS is disabled.

Fixes: ed46f1f773 ("platform: cznic: turris-omnia-mcu: fix Kconfig dependencies")
Signed-off-by: Marek Behún <kabel@kernel.org>
Link: https://lore.kernel.org/r/20240719085756.30598-4-kabel@kernel.org
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
This commit is contained in:
Marek Behún 2024-07-19 10:57:55 +02:00 committed by Arnd Bergmann
parent c7da0d4e33
commit 74a22fced5
4 changed files with 23 additions and 7 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

13
drivers/platform/cznic/Kconfig
View File

@ -18,15 +18,11 @@ config TURRIS_OMNIA_MCU
depends on I2C
depends on OF
depends on GPIOLIB
depends on RTC_CLASS
select GPIOLIB_IRQCHIP
help
Say Y here to add support for the features implemented by the
microcontroller on the CZ.NIC's Turris Omnia SOHO router.
The features include:
- board poweroff into true low power mode (with voltage regulators
disabled) and the ability to configure wake up from this mode (via
rtcwake)
- GPIO pins
- to get front button press events (the front button can be
configured either to generate press events to the CPU or to change
@ -45,6 +41,15 @@ config TURRIS_OMNIA_MCU
if TURRIS_OMNIA_MCU
config TURRIS_OMNIA_MCU_SYSOFF_WAKEUP
bool "Turris Omnia MCU system off and RTC wakeup"
default y
depends on RTC_CLASS
help
Say Y here to add support for CZ.NIC's Turris Omnia board poweroff
into true low power mode (with voltage regulators disabled) and the
ability to configure wake up from this mode (via rtcwake).
config TURRIS_OMNIA_MCU_WATCHDOG
bool "Turris Omnia MCU watchdog"
default y

2
drivers/platform/cznic/Makefile
View File

@ -3,6 +3,6 @@
obj-$(CONFIG_TURRIS_OMNIA_MCU) += turris-omnia-mcu.o
turris-omnia-mcu-y := turris-omnia-mcu-base.o
turris-omnia-mcu-y += turris-omnia-mcu-gpio.o
turris-omnia-mcu-y += turris-omnia-mcu-sys-off-wakeup.o
turris-omnia-mcu-$(CONFIG_TURRIS_OMNIA_MCU_SYSOFF_WAKEUP) += turris-omnia-mcu-sys-off-wakeup.o
turris-omnia-mcu-$(CONFIG_TURRIS_OMNIA_MCU_TRNG) += turris-omnia-mcu-trng.o
turris-omnia-mcu-$(CONFIG_TURRIS_OMNIA_MCU_WATCHDOG) += turris-omnia-mcu-watchdog.o

2
drivers/platform/cznic/turris-omnia-mcu-base.c
View File

@ -198,7 +198,9 @@ static const struct attribute_group omnia_mcu_base_group = {
static const struct attribute_group *omnia_mcu_groups[] = {
&omnia_mcu_base_group,
&omnia_mcu_gpio_group,
#ifdef CONFIG_TURRIS_OMNIA_MCU_SYSOFF_WAKEUP
&omnia_mcu_poweroff_group,
#endif
NULL
};

13
drivers/platform/cznic/turris-omnia-mcu.h
View File

@ -42,10 +42,12 @@ struct omnia_mcu {
unsigned long last_status;
bool button_pressed_emul;
#ifdef CONFIG_TURRIS_OMNIA_MCU_SYSOFF_WAKEUP
/* RTC device for configuring wake-up */
struct rtc_device *rtcdev;
u32 rtc_alarm;
bool front_button_poweron;
#endif
#ifdef CONFIG_TURRIS_OMNIA_MCU_WATCHDOG
/* MCU watchdog */
@ -188,10 +190,17 @@ static inline int omnia_cmd_read_u8(const struct i2c_client *client, u8 cmd,
extern const u8 omnia_int_to_gpio_idx[32];
extern const struct attribute_group omnia_mcu_gpio_group;
extern const struct attribute_group omnia_mcu_poweroff_group;
int omnia_mcu_register_gpiochip(struct omnia_mcu *mcu);
#ifdef CONFIG_TURRIS_OMNIA_MCU_SYSOFF_WAKEUP
extern const struct attribute_group omnia_mcu_poweroff_group;
int omnia_mcu_register_sys_off_and_wakeup(struct omnia_mcu *mcu);
#else
static inline int omnia_mcu_register_sys_off_and_wakeup(struct omnia_mcu *mcu)
{
return 0;
}
#endif
#ifdef CONFIG_TURRIS_OMNIA_MCU_TRNG
int omnia_mcu_register_trng(struct omnia_mcu *mcu);