4 files changed, 116 insertions, 2 deletions

diff --git a/drivers/power/pmic/Kconfig b/drivers/power/pmic/Kconfig
index e3f9e4dfc0..5d49c93f32 100644
--- a/drivers/power/pmic/Kconfig
+++ b/drivers/power/pmic/Kconfig
@@ -201,3 +201,11 @@ config POWER_MC34VR500
 	The MC34VR500 is used in conjunction with the FSL T1 and LS1 series
 	SoC. It provides 4 buck DC-DC convertors and 5 LDOs, and it is accessed
 	via an I2C interface.
+
+config DM_PMIC_TPS65910
+	bool "Enable driver for Texas Instruments TPS65910 PMIC"
+	depends on DM_PMIC
+	---help---
+	The TPS65910 is a PMIC containing 3 buck DC-DC converters, one boost
+	DC-DC converter, 8 LDOs and a RTC. This driver binds the SMPS and LDO
+	pmic children.
diff --git a/drivers/power/pmic/Makefile b/drivers/power/pmic/Makefile
index f7bdfa5609..7d6c583d34 100644
--- a/drivers/power/pmic/Makefile
+++ b/drivers/power/pmic/Makefile
@@ -19,6 +19,7 @@ obj-$(CONFIG_PMIC_RK8XX) += rk8xx.o
 obj-$(CONFIG_PMIC_RN5T567) += rn5t567.o
 obj-$(CONFIG_PMIC_TPS65090) += tps65090.o
 obj-$(CONFIG_PMIC_S5M8767) += s5m8767.o
+obj-$(CONFIG_DM_PMIC_TPS65910) += pmic_tps65910_dm.o
 obj-$(CONFIG_$(SPL_)PMIC_PALMAS) += palmas.o
 obj-$(CONFIG_$(SPL_)PMIC_LP873X) += lp873x.o
 obj-$(CONFIG_$(SPL_)PMIC_LP87565) += lp87565.o
diff --git a/drivers/power/pmic/pmic-uclass.c b/drivers/power/pmic/pmic-uclass.c
index 64964e4e96..9347b40688 100644
--- a/drivers/power/pmic/pmic-uclass.c
+++ b/drivers/power/pmic/pmic-uclass.c
@@ -26,6 +26,7 @@ int pmic_bind_children(struct udevice *pmic, ofnode parent,
 	struct driver *drv;
 	struct udevice *child;
 	const char *node_name;
+	const char *reg_name;
 	int bind_count = 0;
 	ofnode node;
 	int prefix_len;
@@ -44,8 +45,14 @@ int pmic_bind_children(struct udevice *pmic, ofnode parent,
 			debug("  - compatible prefix: '%s'\n", info->prefix);
 
 			prefix_len = strlen(info->prefix);
-			if (strncmp(info->prefix, node_name, prefix_len))
-				continue;
+			if (strncmp(info->prefix, node_name, prefix_len)) {
+				reg_name = ofnode_read_string(node,
+							      "regulator-name");
+				if (!reg_name)
+					continue;
+				if (strncmp(info->prefix, reg_name, prefix_len))
+					continue;
+			}
 
 			drv = lists_driver_lookup_name(info->driver);
 			if (!drv) {
diff --git a/drivers/power/pmic/pmic_tps65910_dm.c b/drivers/power/pmic/pmic_tps65910_dm.c
new file mode 100644
index 0000000000..0127ce3aa0
--- /dev/null
+++ b/drivers/power/pmic/pmic_tps65910_dm.c
@@ -0,0 +1,98 @@
+/*
+ * Copyright (C) EETS GmbH, 2017, Felix Brack <f.brack@eets.ch>
+ *
+ * SPDX-License-Identifier:	GPL-2.0+
+ */
+
+#include <common.h>
+#include <dm.h>
+#include <i2c.h>
+#include <power/pmic.h>
+#include <power/regulator.h>
+#include <power/tps65910_pmic.h>
+
+DECLARE_GLOBAL_DATA_PTR;
+
+static const struct pmic_child_info pmic_children_info[] = {
+	{ .prefix = "ldo_", .driver = TPS65910_LDO_DRIVER },
+	{ .prefix = "buck_", .driver = TPS65910_BUCK_DRIVER },
+	{ .prefix = "boost_", .driver = TPS65910_BOOST_DRIVER },
+	{ },
+};
+
+static int pmic_tps65910_reg_count(struct udevice *dev)
+{
+	return TPS65910_NUM_REGS;
+}
+
+static int pmic_tps65910_write(struct udevice *dev, uint reg, const u8 *buffer,
+			       int len)
+{
+	int ret;
+
+	ret = dm_i2c_write(dev, reg, buffer, len);
+	if (ret)
+		error("%s write error on register %02x\n", dev->name, reg);
+
+	return ret;
+}
+
+static int pmic_tps65910_read(struct udevice *dev, uint reg, u8 *buffer,
+			      int len)
+{
+	int ret;
+
+	ret = dm_i2c_read(dev, reg, buffer, len);
+	if (ret)
+		error("%s read error on register %02x\n", dev->name, reg);
+
+	return ret;
+}
+
+static int pmic_tps65910_bind(struct udevice *dev)
+{
+	ofnode regulators_node;
+	int children;
+
+	regulators_node = dev_read_subnode(dev, "regulators");
+	if (!ofnode_valid(regulators_node)) {
+		debug("%s regulators subnode not found\n", dev->name);
+		return -EINVAL;
+	}
+
+	children = pmic_bind_children(dev, regulators_node, pmic_children_info);
+	if (!children)
+		debug("%s has no children (regulators)\n", dev->name);
+
+	return 0;
+}
+
+static int pmic_tps65910_probe(struct udevice *dev)
+{
+	/* use I2C control interface instead of I2C smartreflex interface to
+	 * access smartrefelex registers VDD1_OP_REG, VDD1_SR_REG, VDD2_OP_REG
+	 * and VDD2_SR_REG
+	 */
+	return pmic_clrsetbits(dev, TPS65910_REG_DEVICE_CTRL, 0,
+			       TPS65910_I2C_SEL_MASK);
+}
+
+static struct dm_pmic_ops pmic_tps65910_ops = {
+	.reg_count = pmic_tps65910_reg_count,
+	.read = pmic_tps65910_read,
+	.write = pmic_tps65910_write,
+};
+
+static const struct udevice_id pmic_tps65910_match[] = {
+	{ .compatible = "ti,tps65910" },
+	{ /* sentinel */ }
+};
+
+U_BOOT_DRIVER(pmic_tps65910) = {
+	.name = "pmic_tps65910",
+	.id = UCLASS_PMIC,
+	.of_match = pmic_tps65910_match,
+	.bind = pmic_tps65910_bind,
+	.probe = pmic_tps65910_probe,
+	.ops = &pmic_tps65910_ops,
+};