It was found that npcx7 series' GPIOs which support low-voltage power
supply, there is an excessive power consumption if they are selected to
low-voltage mode and their input voltage is 1.8V.
To avoid this excessive power consumption, this CL suspends the
connection between IO pads and hardware instances before ec enters deep
sleep mode. Then restore them after waking up.
Signed-off-by: Mulin Chao <mlchao@nuvoton.com>
NPCX host access IRQ enables before entering deep sleep. The pending
bit lets chip wake up from sleep immediately. Clear host access IRQ
pending bit before enabling.
Signed-off-by: Wealian Liao <WHLIAO@nuvoton.com>
In this CL, npcx_miwu_interrupt_configure is no longer responsible for
turning the interrupt off. Although the default state of WK_EN is
disabled, the users still have the chance to configure them when WK_EN
is enabled via npcx_miwu_irq_enable(). Hence, this CL also ensures that
WK_EN is disabled before configuring them.
Signed-off-by: Mulin Chao <mlchao@nuvoton.com>
This CL replaces all DT_ prefix with NPCX_DT_ for all macros used
for providing npcx device information in soc_dt.h It avoided the
ambiguity with the DT_ prefix for system DT macros/defines.
Signed-off-by: Mulin Chao <mlchao@nuvoton.com>
Add const modifier for hal instances, clock devices pointer, and module
base address in npcx drivers to prevent driver functions change them
unexpectedly.
Signed-off-by: Mulin Chao <MLChao@nuvoton.com>
Replace all calls to the assert macro that comes from libc by calls to
__ASSERT_NO_MSG(). This is usefull as the former might be different
depending on the libc used and the later can be customized to reduce
flash footprint.
Signed-off-by: Xavier Chapron <xavier.chapron@stimio.fr>
Now that device_api attribute is unmodified at runtime, as well as all
the other attributes, it is possible to switch all device driver
instance to be constant.
A coccinelle rule is used for this:
@r_const_dev_1
disable optional_qualifier
@
@@
-struct device *
+const struct device *
@r_const_dev_2
disable optional_qualifier
@
@@
-struct device * const
+const struct device *
Fixes#27399
Signed-off-by: Tomasz Bursztyka <tomasz.bursztyka@linux.intel.com>
Add gpio support for Nuvoton NPCX series. This CL includes:
1. Add GPIO device tree declarations.
2. Introduce wui_maps property in yaml file to present relationship
between Wake-Up
Input (WUI) and 8 IOs belong to the device.
3. Zephyr GPIO api implementation.
4. GPIO callback functions implementation with MIWU api functions.
5. Overlay file for gpio basic tests
Signed-off-by: Mulin Chao <MLChao@nuvoton.com>
The device Multi-Input Wake-Up Unit (MIWU) supports the embedded
controller (EC) to exit 'Sleep' or 'Deep Sleep' power state which allows
chip has better power consumption. Also, it provides signal conditioning
such as 'Level' and 'Edge' trigger type and grouping of external
interrupt sources of NVIC. The NPCX series has three identical MIWU
modules: MIWU0, MIWU1, MIWU2. Together, they support a total of over 140
internal and/or external wake-up sources.
In this CL, we use device tree files to present the relationship bewteen
MIWU and the other devices in different npcx series. For npcx7 series,
it include:
1. npcx7-miwus-int-map.dtsi: it presents relationship between MIWU group
and NVIC interrupt in npcx7. Please notice it isn't 1-to-1 mapping.
2. npcx7-miwus-wui-map.dtsi: it presents relationship between input of
MIWU and its source device such as gpio, timer, eSPI VWs and so on.
This CL also includes:
1. Add MIWU device tree declarations.
2. MIWU api function declarations and implementation to configure signal
conditions and callback function mechanism. They can be be classified
into two types. One is for GPIO which connects original gpio callback
implemetation and the other is for generic devices such as timer,
eSPI, and so on.
Signed-off-by: Mulin Chao <MLChao@nuvoton.com>
