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da9063: Add watchdog support

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The DA9063 PMIC is a multi-function device that provides
regulator, watchdog, RTC, and ON key functionalities.

Add support for the DA9063 PMIC watchdog functionality.

Based on the 6.11 kernel drivers/watchdog/da9063_wdt.c driver.

Signed-off-by: Fabio Estevam <festevam@denx.de>
Reviewed-by: Stefan Roese <sr@denx.de>
This commit is contained in:
Fabio Estevam
2024-09-17 10:55:50 -03:00
parent edb2e27530
commit 52612185af
4 changed files with 166 additions and 2 deletions
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12
drivers/power/pmic/da9063.c
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@@ -7,6 +7,9 @@
#include <fdtdec.h>
#include <errno.h>
#include <dm.h>
#include <dm/device-internal.h>
#include <dm/device_compat.h>
#include <dm/lists.h>
#include <i2c.h>
#include <log.h>
#include <linux/printk.h>
@@ -86,6 +89,7 @@ static int da9063_read(struct udevice *dev, uint reg, uint8_t *buff, int len)
static int da9063_bind(struct udevice *dev)
{
ofnode regulators_node;
struct driver *drv;
int children;
regulators_node = dev_read_subnode(dev, "regulators");
@@ -101,8 +105,12 @@ static int da9063_bind(struct udevice *dev)
if (!children)
debug("%s: %s - no child found\n", __func__, dev->name);
/* Always return success for this device */
return 0;
drv = lists_driver_lookup_name("da9063-wdt");
if (!drv)
return 0;
return device_bind_with_driver_data(dev, drv, "da9063-wdt", dev->driver_data,
dev_ofnode(dev), &dev);
}
static int da9063_probe(struct udevice *dev)