@@ -7,6 +7,9 @@
#include <dm.h>
#include <errno.h>
#include <i2c.h>
+#include <sysreset.h>
+#include <dm/device.h>
+#include <dm/lists.h>
#include <power/pmic.h>
#include <power/stpmic1.h>
@@ -72,6 +75,10 @@ static int stpmic1_bind(struct udevice *dev)
dev_dbg(dev, "no child found\n");
#endif /* DM_REGULATOR */
+ if (CONFIG_IS_ENABLED(SYSRESET))
+ return device_bind_driver(dev, "stpmic1-sysreset",
+ "stpmic1-sysreset", NULL);
+
return 0;
}
@@ -93,3 +100,42 @@ U_BOOT_DRIVER(pmic_stpmic1) = {
.bind = stpmic1_bind,
.ops = &stpmic1_ops,
};
+
+#ifdef CONFIG_SYSRESET
+static int stpmic1_sysreset_request(struct udevice *dev, enum sysreset_t type)
+{
+ struct udevice *pmic_dev;
+ int ret;
+
+ if (type != SYSRESET_POWER)
+ return -EPROTONOSUPPORT;
+
+ ret = uclass_get_device_by_driver(UCLASS_PMIC,
+ DM_GET_DRIVER(pmic_stpmic1),
+ &pmic_dev);
+
+ if (ret)
+ return -EOPNOTSUPP;
+
+ ret = pmic_reg_read(pmic_dev, STPMIC1_MAIN_CR);
+ if (ret < 0)
+ return ret;
+
+ ret = pmic_reg_write(pmic_dev, STPMIC1_MAIN_CR,
+ ret | STPMIC1_SWOFF | STPMIC1_RREQ_EN);
+ if (ret < 0)
+ return ret;
+
+ return -EINPROGRESS;
+}
+
+static struct sysreset_ops stpmic1_sysreset_ops = {
+ .request = stpmic1_sysreset_request,
+};
+
+U_BOOT_DRIVER(stpmic1_sysreset) = {
+ .name = "stpmic1-sysreset",
+ .id = UCLASS_SYSRESET,
+ .ops = &stpmic1_sysreset_ops,
+};
+#endif
Add sysreset support, and support power switch off request, needed by poweroff command. Signed-off-by: Patrick Delaunay <patrick.delaunay@st.com> --- drivers/power/pmic/stpmic1.c | 46 ++++++++++++++++++++++++++++++++++++++++++++ 1 file changed, 46 insertions(+)