power: pmic: tps65941: Add support for tps65941 family of PMICs
Add support to bind the regulators/child nodes with the pmic.
Signed-off-by: Keerthy <j-keerthy@ti.com>
diff --git a/drivers/power/pmic/Kconfig b/drivers/power/pmic/Kconfig
index 4718dc7..b4bf018 100644
--- a/drivers/power/pmic/Kconfig
+++ b/drivers/power/pmic/Kconfig
@@ -275,3 +275,10 @@
help
The LP87565 is a PMIC containing a bunch of SMPS.
This driver binds the pmic children in SPL.
+
+config PMIC_TPS65941
+ bool "Enable driver for Texas Instruments TPS65941 PMIC"
+ depends on DM_PMIC
+ help
+ The TPS65941 is a PMIC containing a bunch of SMPS & LDOs.
+ This driver binds the pmic children.
diff --git a/drivers/power/pmic/Makefile b/drivers/power/pmic/Makefile
index 888dbb2..ec64327 100644
--- a/drivers/power/pmic/Makefile
+++ b/drivers/power/pmic/Makefile
@@ -39,3 +39,4 @@
obj-$(CONFIG_POWER_TPS65910) += pmic_tps65910.o
obj-$(CONFIG_POWER_HI6553) += pmic_hi6553.o
obj-$(CONFIG_POWER_MC34VR500) += pmic_mc34vr500.o
+obj-$(CONFIG_PMIC_TPS65941) += tps65941.o
diff --git a/drivers/power/pmic/tps65941.c b/drivers/power/pmic/tps65941.c
new file mode 100644
index 0000000..e8f3c95
--- /dev/null
+++ b/drivers/power/pmic/tps65941.c
@@ -0,0 +1,83 @@
+// SPDX-License-Identifier: GPL-2.0+
+/*
+ * (C) Copyright 2019 Texas Instruments Incorporated, <www.ti.com>
+ * Keerthy <j-keerthy@ti.com>
+ */
+
+#include <common.h>
+#include <fdtdec.h>
+#include <errno.h>
+#include <dm.h>
+#include <i2c.h>
+#include <power/pmic.h>
+#include <power/regulator.h>
+#include <power/tps65941.h>
+#include <dm/device.h>
+
+static const struct pmic_child_info pmic_children_info[] = {
+ { .prefix = "ldo", .driver = TPS65941_LDO_DRIVER },
+ { .prefix = "buck", .driver = TPS65941_BUCK_DRIVER },
+ { },
+};
+
+static int tps65941_write(struct udevice *dev, uint reg, const uint8_t *buff,
+ int len)
+{
+ if (dm_i2c_write(dev, reg, buff, len)) {
+ pr_err("write error to device: %p register: %#x!\n", dev, reg);
+ return -EIO;
+ }
+
+ return 0;
+}
+
+static int tps65941_read(struct udevice *dev, uint reg, uint8_t *buff, int len)
+{
+ if (dm_i2c_read(dev, reg, buff, len)) {
+ pr_err("read error from device: %p register: %#x!\n", dev, reg);
+ return -EIO;
+ }
+
+ return 0;
+}
+
+static int tps65941_bind(struct udevice *dev)
+{
+ ofnode regulators_node;
+ int children;
+
+ regulators_node = dev_read_subnode(dev, "regulators");
+ if (!ofnode_valid(regulators_node)) {
+ debug("%s: %s regulators subnode not found!\n", __func__,
+ dev->name);
+ return -ENXIO;
+ }
+
+ debug("%s: '%s' - found regulators subnode\n", __func__, dev->name);
+
+ children = pmic_bind_children(dev, regulators_node, pmic_children_info);
+ if (!children)
+ printf("%s: %s - no child found\n", __func__, dev->name);
+
+ /* Always return success for this device */
+ return 0;
+}
+
+static struct dm_pmic_ops tps65941_ops = {
+ .read = tps65941_read,
+ .write = tps65941_write,
+};
+
+static const struct udevice_id tps65941_ids[] = {
+ { .compatible = "ti,tps659411", .data = TPS659411 },
+ { .compatible = "ti,tps659413", .data = TPS659413 },
+ { }
+};
+
+U_BOOT_DRIVER(pmic_tps65941) = {
+ .name = "tps65941_pmic",
+ .id = UCLASS_PMIC,
+ .of_match = tps65941_ids,
+ .bind = tps65941_bind,
+ .ops = &tps65941_ops,
+};