Add missing part of: "power: pmic: pfuze100 support driver model"

This part of mentioned commit, was missed by my mistake during the rebase.
Signed-off-by: Przemyslaw Marczak <p.marczak@samsung.com>
Original commit message:
power: pmic: pfuze100 support driver model

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.
4. Rename PMIC_NUM_OF_REGS macro to PFUZE100_NUM_OF_REGS.

Change-Id: I4fc88414f3c0285f9648e47ec7aed60addeccc4d
Signed-off-by: Peng Fan <Peng.Fan@freescale.com>
Cc: Przemyslaw Marczak <p.marczak@samsung.com>
Cc: Simon Glass <sjg@chromium.org>
Reviewed-by: Simon Glass <sjg@chromium.org>

diff --git a/drivers/power/pmic/Kconfig b/drivers/power/pmic/Kconfig
index 7b98189ad8fa4a574c382aed2fbcce2761a4b689..fc6a3743dc964d5121cdf419f8c1b602b9e422e8 100644 (file)
--- 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/pfuze100.c b/drivers/power/pmic/pfuze100.c
new file mode 100644 (file)
index 0000000..3beb48e
--- /dev/null
+++ b/drivers/power/pmic/pfuze100.c
@@ -0,0 +1,96 @@
+/*
+ * Copyright (C) 2015 Freescale Semiconductor, Inc
+ * Peng Fan <Peng.Fan@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>
+
+DECLARE_GLOBAL_DATA_PTR;
+
+static const struct pmic_child_info pmic_children_info[] = {
+       /* sw[x], swbst */
+       { .prefix = "s", .driver = PFUZE100_REGULATOR_DRIVER },
+       /* vgen[x], vsnvs, vcc, v33, vcc_sd */
+       { .prefix = "v", .driver = PFUZE100_REGULATOR_DRIVER },
+       { },
+};
+
+static int pfuze100_reg_count(struct udevice *dev)
+{
+       return PFUZE100_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 children;
+       int regulators_node;
+       const void *blob = gd->fdt_blob;
+
+       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 = PFUZE100, },
+       { .compatible = "fsl,pfuze200", .data = PFUZE200, },
+       { .compatible = "fsl,pfuze3000", .data = PFUZE3000, },
+       { }
+};
+
+U_BOOT_DRIVER(pmic_pfuze100) = {
+       .name = "pfuze100 pmic",
+       .id = UCLASS_PMIC,
+       .of_match = pfuze100_ids,
+       .bind = pfuze100_bind,
+       .ops = &pfuze100_ops,
+};

diff --git a/drivers/power/pmic/pmic_pfuze100.c b/drivers/power/pmic/pmic_pfuze100.c
index 22a04c02a3c149013a828c023b242f3848645df6..259b349da7a125e58f1031c78328a8a2ea57cdb0 100644 (file)
--- a/drivers/power/pmic/pmic_pfuze100.c
+++ b/drivers/power/pmic/pmic_pfuze100.c
@@ -23,7 +23,7 @@ int power_pfuze100_init(unsigned char bus)
 
        p->name = name;
        p->interface = PMIC_I2C;
-       p->number_of_regs = PMIC_NUM_OF_REGS;
+       p->number_of_regs = PFUZE100_NUM_OF_REGS;
        p->hw.i2c.addr = CONFIG_POWER_PFUZE100_I2C_ADDR;
        p->hw.i2c.tx_num = 1;
        p->bus = bus;

diff --git a/include/power/pfuze100_pmic.h b/include/power/pfuze100_pmic.h
index 138132a69660b05c58bfb3a22ee406db0607d589..41cb710d78f47e61e6ed25e9f4aa5d94c53d1c7e 100644 (file)
--- a/include/power/pfuze100_pmic.h
+++ b/include/power/pfuze100_pmic.h
@@ -8,6 +8,11 @@
 #ifndef __PFUZE100_PMIC_H_
 #define __PFUZE100_PMIC_H_
 
+/* Device ID */
+enum {PFUZE100 = 0x10, PFUZE200 = 0x11, PFUZE3000 = 0x30};
+
+#define PFUZE100_REGULATOR_DRIVER      "pfuze100_regulator"
+
 /* PFUZE100 registers */
 enum {
        PFUZE100_DEVICEID       = 0x00,
@@ -54,7 +59,7 @@ enum {
        PFUZE100_VGEN5VOL       = 0x70,
        PFUZE100_VGEN6VOL       = 0x71,
 
-       PMIC_NUM_OF_REGS        = 0x7f,
+       PFUZE100_NUM_OF_REGS    = 0x7f,
 };
 
 /* Registor offset based on VOLT register */