1. Support driver model for pfuze100.
2. Introduce a new Kconfig entry DM_PMIC_PFUZE100 for pfuze100
3. This driver intends to support PF100, PF200 and PF3000, so add
the device id into the udevice_id array.
Signed-off-by: Peng Fan <peng....@freescale.com>
Cc: Przemyslaw Marczak <p.marc...@samsung.com>
Cc: Simon Glass <s...@chromium.org>
---
drivers/power/pmic/Kconfig | 7 +++
drivers/power/pmic/pmic_pfuze100.c | 89 ++++++++++++++++++++++++++++++++++++++
include/power/pfuze100_pmic.h | 3 ++
3 files changed, 99 insertions(+)
diff --git a/drivers/power/pmic/Kconfig b/drivers/power/pmic/Kconfig
index 164f421..0df91be 100644
--- a/drivers/power/pmic/Kconfig
+++ b/drivers/power/pmic/Kconfig
@@ -10,6 +10,13 @@ config DM_PMIC
- 'drivers/power/pmic/pmic-uclass.c'
- 'include/power/pmic.h'
+config DM_PMIC_PFUZE100
+ bool "Enable Driver Model for PMIC PFUZE100"
+ depends on DM_PMIC
+ ---help---
+ This config enables implementation of driver-model pmic uclass features
+ for PMIC PFUZE100. The driver implements read/write operations.
+
config DM_PMIC_MAX77686
bool "Enable Driver Model for PMIC MAX77686"
depends on DM_PMIC
diff --git a/drivers/power/pmic/pmic_pfuze100.c
b/drivers/power/pmic/pmic_pfuze100.c
index 22a04c0..be9d05c 100644
--- a/drivers/power/pmic/pmic_pfuze100.c
+++ b/drivers/power/pmic/pmic_pfuze100.c
@@ -2,15 +2,22 @@
* Copyright (C) 2014 Gateworks Corporation
* Tim Harvey <thar...@gateworks.com>
*
+ * Copyright (C) 2015 Freescale Semiconductor, Inc
+ * Peng Fan <peng....@freescale.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/pfuze100_pmic.h>
+#ifndef CONFIG_DM_PMIC
int power_pfuze100_init(unsigned char bus)
{
static const char name[] = "PFUZE100";
@@ -30,3 +37,85 @@ int power_pfuze100_init(unsigned char bus)
return 0;
}
+#else
+DECLARE_GLOBAL_DATA_PTR;
+
+static const struct pmic_child_info pmic_children_info[] = {
+ /* sw[x], swbst */
+ { .prefix = "s", .driver = "pfuze100_regulator" },
+ /* vgen[x], vsnvs, vcc, v33, vcc_sd */
+ { .prefix = "v", .driver = "pfuze100_regulator" },
+ { },
+};
+
+static int pfuze100_reg_count(struct udevice *dev)
+{
+ return PMIC_NUM_OF_REGS;
+}
+
+static int pfuze100_write(struct udevice *dev, uint reg, const uint8_t *buff,
+ int len)
+{
+ if (dm_i2c_write(dev, reg, buff, len)) {
+ error("write error to device: %p register: %#x!", dev, reg);
+ return -EIO;
+ }
+
+ return 0;
+}
+
+static int pfuze100_read(struct udevice *dev, uint reg, uint8_t *buff, int len)
+{
+ if (dm_i2c_read(dev, reg, buff, len)) {
+ error("read error from device: %p register: %#x!", dev, reg);
+ return -EIO;
+ }
+
+ return 0;
+}
+
+static int pfuze100_bind(struct udevice *dev)
+{
+ int regulators_node;
+ const void *blob = gd->fdt_blob;
+ int children;
+
+ regulators_node = fdt_subnode_offset(blob, dev->of_offset,
+ "regulators");
+ if (regulators_node <= 0) {
+ debug("%s: %s regulators subnode not found!", __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)
+ debug("%s: %s - no child found\n", __func__, dev->name);
+
+ /* Always return success for this device */
+ return 0;
+}
+
+static struct dm_pmic_ops pfuze100_ops = {
+ .reg_count = pfuze100_reg_count,
+ .read = pfuze100_read,
+ .write = pfuze100_write,
+};
+
+static const struct udevice_id pfuze100_ids[] = {
+ { .compatible = "fsl,pfuze100", .data = (long)PFUZE100, },
+ { .compatible = "fsl,pfuze200", .data = (long)PFUZE200, },
+ { .compatible = "fsl,pfuze3000", .data = (long)PFUZE3000, },
+ { }
+};
+
+U_BOOT_DRIVER(pmic_pfuze100) = {
+ .name = "pfuze100 pmic",
+ .id = UCLASS_PMIC,
+ .of_match = pfuze100_ids,
+ .bind = pfuze100_bind,
+ .ops = &pfuze100_ops,
+};
+#endif
diff --git a/include/power/pfuze100_pmic.h b/include/power/pfuze100_pmic.h
index cb10605..b13a780 100644
--- a/include/power/pfuze100_pmic.h
+++ b/include/power/pfuze100_pmic.h
@@ -8,6 +8,9 @@
#ifndef __PFUZE100_PMIC_H_
#define __PFUZE100_PMIC_H_
+/* Device ID */
+enum {PFUZE100 = 0x10, PFUZE200 = 0x11, PFUZE3000 = 0x30};
+
/* PFUZE100 registers */
enum {
PFUZE100_DEVICEID = 0x00,
--
1.8.4
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