Add support to bind the regulators/child nodes with the pmic.
Signed-off-by: Keerthy <j-keer...@ti.com>
Reviewed-by: Simon Glass <s...@chromium.org>
---
drivers/power/pmic/Kconfig | 7 +++++
drivers/power/pmic/Makefile | 1 +
drivers/power/pmic/palmas.c | 77 +++++++++++++++++++++++++++++++++++++++++++++
include/power/palmas.h | 25 +++++++++++++++
4 files changed, 110 insertions(+)
create mode 100644 drivers/power/pmic/palmas.c
create mode 100644 include/power/palmas.h
diff --git a/drivers/power/pmic/Kconfig b/drivers/power/pmic/Kconfig
index 69f8d51..92931c5 100644
--- a/drivers/power/pmic/Kconfig
+++ b/drivers/power/pmic/Kconfig
@@ -135,3 +135,10 @@ config PMIC_TPS65090
FETs and a battery charger. This driver provides register access
only, and you can enable the regulator/charger drivers separately if
required.
+
+config PMIC_PALMAS
+ bool "Enable driver for Texas Instruments PALMAS PMIC"
+ depends on DM_PMIC
+ ---help---
+ The PALMAS is a PMIC containing several LDOs, SMPS.
+ This driver binds the pmic children.
diff --git a/drivers/power/pmic/Makefile b/drivers/power/pmic/Makefile
index 52b4f71..828c0cf 100644
--- a/drivers/power/pmic/Makefile
+++ b/drivers/power/pmic/Makefile
@@ -15,6 +15,7 @@ obj-$(CONFIG_PMIC_PM8916) += pm8916.o
obj-$(CONFIG_PMIC_RK808) += rk808.o
obj-$(CONFIG_PMIC_TPS65090) += tps65090.o
obj-$(CONFIG_PMIC_S5M8767) += s5m8767.o
+obj-$(CONFIG_$(SPL_)PMIC_PALMAS) += palmas.o
obj-$(CONFIG_POWER_LTC3676) += pmic_ltc3676.o
obj-$(CONFIG_POWER_MAX77696) += pmic_max77696.o
diff --git a/drivers/power/pmic/palmas.c b/drivers/power/pmic/palmas.c
new file mode 100644
index 0000000..3cef2c9
--- /dev/null
+++ b/drivers/power/pmic/palmas.c
@@ -0,0 +1,77 @@
+/*
+ * (C) Copyright 2016 Texas Instruments Incorporated, <www.ti.com>
+ * Keerthy <j-keer...@ti.com>
+ *
+ * SPDX-License-Identifier: GPL-2.0+
+ */
+
+#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/palmas.h>
+#include <dm/device.h>
+
+DECLARE_GLOBAL_DATA_PTR;
+
+static const struct pmic_child_info pmic_children_info[] = {
+ { .prefix = "ldo", .driver = PALMAS_LDO_DRIVER },
+ { .prefix = "smps", .driver = PALMAS_SMPS_DRIVER },
+ { },
+};
+
+static int palmas_bind(struct udevice *dev)
+{
+ int pmic_node = -1, regulators_node;
+ const void *blob = gd->fdt_blob;
+ int children;
+ int node = dev->of_offset;
+ int subnode, len;
+
+ fdt_for_each_subnode(blob, subnode, node) {
+ const char *name;
+ char *temp;
+
+ name = fdt_get_name(blob, subnode, &len);
+ temp = strstr(name, "pmic");
+ if (temp) {
+ pmic_node = subnode;
+ break;
+ }
+ }
+
+ if (pmic_node <= 0) {
+ printf("%s: %s pmic subnode not found!", __func__, dev->name);
+ return -ENXIO;
+ }
+
+ regulators_node = fdt_subnode_offset(blob, pmic_node, "regulators");
+
+ if (regulators_node <= 0) {
+ printf("%s: %s reg subnode not found!", __func__, dev->name);
+ return -ENXIO;
+ }
+
+ 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 const struct udevice_id palmas_ids[] = {
+ { .compatible = "ti,tps659038", .data = TPS659038 },
+ { .compatible = "ti,tps65917" , .data = TPS65917 },
+ { }
+};
+
+U_BOOT_DRIVER(pmic_palmas) = {
+ .name = "palmas_pmic",
+ .id = UCLASS_PMIC,
+ .of_match = palmas_ids,
+ .bind = palmas_bind,
+};
diff --git a/include/power/palmas.h b/include/power/palmas.h
new file mode 100644
index 0000000..bad5a35
--- /dev/null
+++ b/include/power/palmas.h
@@ -0,0 +1,25 @@
+#define PALMAS 0x0
+#define TPS659038 0x1
+#define TPS65917 0x2
+
+/* I2C device address for pmic palmas */
+#define PALMAS_I2C_ADDR (0x12 >> 1)
+#define PALMAS_LDO_NUM 11
+#define PALMAS_SMPS_NUM 8
+
+/* Drivers name */
+#define PALMAS_LDO_DRIVER "palmas_ldo"
+#define PALMAS_SMPS_DRIVER "palmas_smps"
+
+#define PALMAS_SMPS_VOLT_MASK 0x7F
+#define PALMAS_SMPS_RANGE_MASK 0x80
+#define PALMAS_SMPS_VOLT_MAX_HEX 0x7F
+#define PALMAS_SMPS_VOLT_MAX 3300000
+#define PALMAS_SMPS_MODE_MASK 0x3
+#define PALMAS_SMPS_STATUS_MASK 0x30
+
+#define PALMAS_LDO_VOLT_MASK 0x3F
+#define PALMAS_LDO_VOLT_MAX_HEX 0x3F
+#define PALMAS_LDO_VOLT_MAX 3300000
+#define PALMAS_LDO_MODE_MASK 0x1
+#define PALMAS_LDO_STATUS_MASK 0x10
--
1.9.1
_______________________________________________
U-Boot mailing list
U-Boot@lists.denx.de
http://lists.denx.de/mailman/listinfo/u-boot
