Add the max8998 controller for Driver model.
Samsung S5P series are using max8998 pmic controller.
In future, it should be supported the regulator framework.
Signed-off-by: Jaehoon Chung <jh80.ch...@samsung.com>
---
drivers/power/pmic/Kconfig | 7 +++++
drivers/power/pmic/Makefile | 1 +
drivers/power/pmic/max8998.c | 61 ++++++++++++++++++++++++++++++++++++++++++++
3 files changed, 69 insertions(+)
create mode 100644 drivers/power/pmic/max8998.c
diff --git a/drivers/power/pmic/Kconfig b/drivers/power/pmic/Kconfig
index ce204b3..5e244c8 100644
--- a/drivers/power/pmic/Kconfig
+++ b/drivers/power/pmic/Kconfig
@@ -54,6 +54,13 @@ config DM_PMIC_MAX77686
This config enables implementation of driver-model pmic uclass features
for PMIC MAX77686. The driver implements read/write operations.
+config DM_PMIC_MAX8998
+ bool "Enable Driver Model for PMIC MAX8998"
+ depends on DM_PMIC
+ ---help---
+ This config enables implementation of driver-model pmic uclass features
+ for PMIC MAX8998. The driver implements read/write operations.
+
config PMIC_PM8916
bool "Enable Driver Model for Qualcomm PM8916 PMIC"
depends on DM_PMIC
diff --git a/drivers/power/pmic/Makefile b/drivers/power/pmic/Makefile
index cd1c694..b4ac7d2 100644
--- a/drivers/power/pmic/Makefile
+++ b/drivers/power/pmic/Makefile
@@ -7,6 +7,7 @@
obj-$(CONFIG_DM_PMIC) += pmic-uclass.o
obj-$(CONFIG_DM_PMIC_MAX77686) += max77686.o
+obj-$(CONFIG_DM_PMIC_MAX8998) += max8998.o
obj-$(CONFIG_DM_PMIC_PFUZE100) += pfuze100.o
obj-$(CONFIG_PMIC_S2MPS11) += s2mps11.o
obj-$(CONFIG_DM_PMIC_SANDBOX) += sandbox.o i2c_pmic_emul.o
diff --git a/drivers/power/pmic/max8998.c b/drivers/power/pmic/max8998.c
new file mode 100644
index 0000000..3baa8da
--- /dev/null
+++ b/drivers/power/pmic/max8998.c
@@ -0,0 +1,61 @@
+/*
+ * Copyright (C) 2016 Samsung Electronics
+ * Jaehoon Chung <jh80.ch...@samsung.com>
+ *
+ * SPDX-License-Identifier: GPL-2.0+
+ */
+
+#include <common.h>
+#include <dm.h>
+#include <i2c.h>
+#include <power/pmic.h>
+#include <power/max8998_pmic.h>
+#include <errno.h>
+
+DECLARE_GLOBAL_DATA_PTR;
+
+static int max8998_reg_count(struct udevice *dev)
+{
+ return PMIC_NUM_OF_REGS;
+}
+
+static int max8998_write(struct udevice *dev, uint reg, const uint8_t *buff,
+ int len)
+{
+ int ret;
+
+ ret = dm_i2c_write(dev, reg, buff, len);
+ if (ret)
+ error("write error to device: %p register: %#x!", dev, reg);
+
+ return ret;
+}
+
+static int max8998_read(struct udevice *dev, uint reg, uint8_t *buff, int len)
+{
+ int ret;
+
+ ret = dm_i2c_read(dev, reg, buff, len);
+ if (ret)
+ error("read error from device: %p register: %#x!", dev, reg);
+
+ return ret;
+}
+
+static struct dm_pmic_ops max8998_ops = {
+ .reg_count = max8998_reg_count,
+ .read = max8998_read,
+ .write = max8998_write,
+};
+
+static const struct udevice_id max8998_ids[] = {
+ { .compatible = "maxim,max8998" },
+ { }
+};
+
+U_BOOT_DRIVER(pmic_max8998) = {
+ .name = "max8998_pmic",
+ .id = UCLASS_PMIC,
+ .of_match = max8998_ids,
+ .ops = &max8998_ops,
+};
--
2.10.2
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