[U-Boot] [PATCH V3 0/5] power: pfuze100: support driver model and regulator

[U-Boot] [PATCH V3 0/5] power: pfuze100: support driver model and regulator

[Peng Fan]

This patch set is to support driver model for pfuze100 and implement
regulator driver for pfuze100. Patches has been tested on i.MX7D
validation board.

Here registeres for standby mode are not touched, all operation read/write
register are for NORMAL state. For example, to pfuze100,
sw1volt is for controlling voltage for normal state, sw1stdby is for
controlling voltage for standby state. The driver only read/write sw1volt,
but not touch sw1stdby. This will be done later, since I do not come up
with a good idea to operate sw1stdby.

This pfuze driver model part and regulator driver use max77686 driver
as a reference.

Changes V3:
 Mainly discard the double pointer. See changelog in each patch.

Changes v2:
 Addressed comments from Simon and Przemyslaw. Detailed changelog see
 each patch.

Peng Fan (5):
  power: pfuze100 correct SWBST macro definition
  power: regulator use node name when no regulator-name
  power: pmic: pfuze100 support driver model
  power: regulator: add pfuze100 support
  fsl: common: pfuze: no use original pfuze code if DM_PMIC

 board/freescale/common/pfuze.c             |   2 +
 drivers/power/pmic/Kconfig                 |   7 +
 drivers/power/pmic/Makefile                |   1 +
 drivers/power/pmic/pfuze100.c              |  99 +++++
 drivers/power/regulator/Kconfig            |   8 +
 drivers/power/regulator/Makefile           |   1 +
 drivers/power/regulator/pfuze100.c         | 568 +++++++++++++++++++++++++++++
 drivers/power/regulator/regulator-uclass.c |   4 +-
 include/power/pfuze100_pmic.h              |  33 +-
 9 files changed, 716 insertions(+), 7 deletions(-)
 create mode 100644 drivers/power/pmic/pfuze100.c
 create mode 100644 drivers/power/regulator/pfuze100.c

-- 
1.8.4

[U-Boot] [PATCH V3 1/6] power: pfuze100 correct SWBST macro definition

[Peng Fan]

According to datasheet, SWBST_MODE starts from bit 2 and it occupies 2 bits.
So SWBST_MODE_MASK should be 0xC, and SWBST_MODE_xx should be ([mode] << 2).

Signed-off-by: Peng Fan <Peng.Fan@freescale.com>
Cc: Przemyslaw Marczak <p.marczak@samsung.com>
Cc: Stefano Babic <sbabic@denx.de>
Reviewed-by: Simon Glass <sjg@chromium.org>
---

Changes v3:
 None

Changes v2:
 None

 include/power/pfuze100_pmic.h | 8 ++++----
 1 file changed, 4 insertions(+), 4 deletions(-)

diff --git a/include/power/pfuze100_pmic.h b/include/power/pfuze100_pmic.h
index 57b9ca9..cb10605 100644
--- a/include/power/pfuze100_pmic.h
+++ b/include/power/pfuze100_pmic.h
@@ -193,11 +193,11 @@ enum {
 #define SWBST_5_15V	3
 
 #define SWBST_VOL_MASK	0x3
-#define SWBST_MODE_MASK	0x6
-#define SWBST_MODE_OFF	(2 << 0)
-#define SWBST_MODE_PFM	(2 << 1)
+#define SWBST_MODE_MASK	0xC
+#define SWBST_MODE_OFF	(0 << 2)
+#define SWBST_MODE_PFM	(1 << 2)
 #define SWBST_MODE_AUTO	(2 << 2)
-#define SWBST_MODE_APS	(2 << 3)
+#define SWBST_MODE_APS	(3 << 2)
 
 /*
  * Regulator Mode Control
-- 
1.8.4

[U-Boot] [PATCH V3 1/6] power: pfuze100 correct SWBST macro definition

[Przemyslaw Marczak]

Hello,

On 08/07/2015 10:43 AM, Peng Fan wrote:
> According to datasheet, SWBST_MODE starts from bit 2 and it occupies 2 bits.
> So SWBST_MODE_MASK should be 0xC, and SWBST_MODE_xx should be ([mode] << 2).
>
> Signed-off-by: Peng Fan <Peng.Fan@freescale.com>
> Cc: Przemyslaw Marczak <p.marczak@samsung.com>
> Cc: Stefano Babic <sbabic@denx.de>
> Reviewed-by: Simon Glass <sjg@chromium.org>
> ---
>
> Changes v3:
>   None
>
> Changes v2:
>   None
>
>   include/power/pfuze100_pmic.h | 8 ++++----
>   1 file changed, 4 insertions(+), 4 deletions(-)
>
> diff --git a/include/power/pfuze100_pmic.h b/include/power/pfuze100_pmic.h
> index 57b9ca9..cb10605 100644
> --- a/include/power/pfuze100_pmic.h
> +++ b/include/power/pfuze100_pmic.h
> @@ -193,11 +193,11 @@ enum {
>   #define SWBST_5_15V	3
>
>   #define SWBST_VOL_MASK	0x3
> -#define SWBST_MODE_MASK	0x6
> -#define SWBST_MODE_OFF	(2 << 0)
> -#define SWBST_MODE_PFM	(2 << 1)
> +#define SWBST_MODE_MASK	0xC
> +#define SWBST_MODE_OFF	(0 << 2)
> +#define SWBST_MODE_PFM	(1 << 2)
>   #define SWBST_MODE_AUTO	(2 << 2)
> -#define SWBST_MODE_APS	(2 << 3)
> +#define SWBST_MODE_APS	(3 << 2)
>
>   /*
>    * Regulator Mode Control
>

Applied to: u-boot-pmic.

Best regards,
-- 
Przemyslaw Marczak
Samsung R&D Institute Poland
Samsung Electronics
p.marczak at samsung.com

[U-Boot] [PATCH V3 2/6] power: regulator use node name when no regulator-name

[Peng Fan]

If there is no property named 'regulator-name' for regulators,
choose node name instead, but not directly return failure value.

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

Changes v3:
 None.

Changes v2:
 None. The comments update patch, see 3/6.

 drivers/power/regulator/regulator-uclass.c | 4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

diff --git a/drivers/power/regulator/regulator-uclass.c b/drivers/power/regulator/regulator-uclass.c
index 12e141b..d4f06d5 100644
--- a/drivers/power/regulator/regulator-uclass.c
+++ b/drivers/power/regulator/regulator-uclass.c
@@ -256,7 +256,9 @@ static int regulator_post_bind(struct udevice *dev)
 	if (!uc_pdata->name) {
 		debug("%s: dev: %s has no property 'regulator-name'\n",
 		      __func__, dev->name);
-		return -EINVAL;
+		uc_pdata->name = fdt_get_name(blob, offset, NULL);
+		if (!uc_pdata->name)
+			return -EINVAL;
 	}
 
 	if (regulator_name_is_unique(dev, uc_pdata->name))
-- 
1.8.4

[U-Boot] [PATCH V3 2/6] power: regulator use node name when no regulator-name

[Simon Glass]

On 7 August 2015 at 02:43, Peng Fan <Peng.Fan@freescale.com> wrote:
>
> If there is no property named 'regulator-name' for regulators,
> choose node name instead, but not directly return failure value.
>
> Signed-off-by: Peng Fan <Peng.Fan@freescale.com>
> Cc: Przemyslaw Marczak <p.marczak@samsung.com>
> Cc: Simon Glass <sjg@chromium.org>
> ---
>
> Changes v3:
>  None.
>
> Changes v2:
>  None. The comments update patch, see 3/6.
>
>  drivers/power/regulator/regulator-uclass.c | 4 +++-
>  1 file changed, 3 insertions(+), 1 deletion(-)

Acked-by: Simon Glass <sjg@chromium.org>

[U-Boot] [PATCH V3 2/6] power: regulator use node name when no regulator-name

[Przemyslaw Marczak]

Hello,

On 08/07/2015 10:43 AM, Peng Fan wrote:
> If there is no property named 'regulator-name' for regulators,
> choose node name instead, but not directly return failure value.
>
> Signed-off-by: Peng Fan <Peng.Fan@freescale.com>
> Cc: Przemyslaw Marczak <p.marczak@samsung.com>
> Cc: Simon Glass <sjg@chromium.org>
> ---
>
> Changes v3:
>   None.
>
> Changes v2:
>   None. The comments update patch, see 3/6.
>
>   drivers/power/regulator/regulator-uclass.c | 4 +++-
>   1 file changed, 3 insertions(+), 1 deletion(-)
>
> diff --git a/drivers/power/regulator/regulator-uclass.c b/drivers/power/regulator/regulator-uclass.c
> index 12e141b..d4f06d5 100644
> --- a/drivers/power/regulator/regulator-uclass.c
> +++ b/drivers/power/regulator/regulator-uclass.c
> @@ -256,7 +256,9 @@ static int regulator_post_bind(struct udevice *dev)
>   	if (!uc_pdata->name) {
>   		debug("%s: dev: %s has no property 'regulator-name'\n",
>   		      __func__, dev->name);
> -		return -EINVAL;
> +		uc_pdata->name = fdt_get_name(blob, offset, NULL);
> +		if (!uc_pdata->name)
> +			return -EINVAL;
>   	}
>
>   	if (regulator_name_is_unique(dev, uc_pdata->name))
>

Applied to: u-boot-pmic.

Best regards,
-- 
Przemyslaw Marczak
Samsung R&D Institute Poland
Samsung Electronics
p.marczak at samsung.com

[U-Boot] [PATCH V3 3/6] power: regulator: update comments for regulator-name

[Peng Fan]

We do not need that "regulator-name" property must be provided in dts.
If "regulator-name" property is not provided in dts, node name
will chosen for settings '.name' field of uc_pdata.

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

Changes v3:
 Keep "regulator-name = "VDD_MMC_1.8V";     (must be unique for proper bind)"
 addressing Przemyslaw's comments.

Changes v2:
 New patch. Update comments for regulator-name property.

 doc/device-tree-bindings/regulator/regulator.txt | 19 ++++++++-----------
 include/power/regulator.h                        |  1 +
 2 files changed, 9 insertions(+), 11 deletions(-)

diff --git a/doc/device-tree-bindings/regulator/regulator.txt b/doc/device-tree-bindings/regulator/regulator.txt
index 68b02a8..2cf4b9d 100644
--- a/doc/device-tree-bindings/regulator/regulator.txt
+++ b/doc/device-tree-bindings/regulator/regulator.txt
@@ -15,15 +15,8 @@ For the node name e.g.: "prefix[:alpha:]num { ... }":
 
 Example the prefix "ldo" will pass for: "ldo1", "ldo at 1", "LDO1", "LDOREG at 1"...
 
-Required properties:
-- regulator-name: a string, required by the regulator uclass
-
-Note
-The "regulator-name" constraint is used for setting the device's uclass
-platform data '.name' field. And the regulator device name is set from
-it's node name.
-
 Optional properties:
+- regulator-name: a string, required by the regulator uclass
 - regulator-min-microvolt: a minimum allowed Voltage value
 - regulator-max-microvolt: a maximum allowed Voltage value
 - regulator-min-microamp: a minimum allowed Current value
@@ -31,6 +24,12 @@ Optional properties:
 - regulator-always-on: regulator should never be disabled
 - regulator-boot-on: enabled by bootloader/firmware
 
+Note
+The "regulator-name" constraint is used for setting the device's uclass
+platform data '.name' field. And the regulator device name is set from
+it's node name. If "regulator-name" is not provided in dts, node name
+is chosen for setting the device's uclass platform data '.name' field.
+
 Other kernel-style properties, are currently not used.
 
 Note:
@@ -41,10 +40,8 @@ For the regulator autoset from constraints, the framework expects that:
 
 Example:
 ldo0 {
-	/* Mandatory */
-	regulator-name = "VDDQ_EMMC_1.8V";
-
 	/* Optional */
+	regulator-name = "VDDQ_EMMC_1.8V";
 	regulator-min-microvolt = <1800000>;
 	regulator-max-microvolt = <1800000>;
 	regulator-min-microamp = <100000>;
diff --git a/include/power/regulator.h b/include/power/regulator.h
index 0152290..1a51c3f 100644
--- a/include/power/regulator.h
+++ b/include/power/regulator.h
@@ -46,6 +46,7 @@
  * Note: For the proper operation, at least name constraint is needed, since
  * it can be used when calling regulator_get_by_platname(). And the mandatory
  * rule for this name is, that it must be globally unique for the single dts.
+ * If regulator-name property is not provided, node name will be chosen.
  *
  * Regulator bind:
  * For each regulator device, the device_bind() should be called with passed
-- 
1.8.4

[U-Boot] [PATCH V3 3/6] power: regulator: update comments for regulator-name

[Przemyslaw Marczak]

Hello,

On 08/07/2015 10:43 AM, Peng Fan wrote:
> We do not need that "regulator-name" property must be provided in dts.
> If "regulator-name" property is not provided in dts, node name
> will chosen for settings '.name' field of uc_pdata.
>
> Signed-off-by: Peng Fan <Peng.Fan@freescale.com>
> Cc: Przemyslaw Marczak <p.marczak@samsung.com>
> Cc: Simon Glass <sjg@chromium.org>
> ---
>
> Changes v3:
>   Keep "regulator-name = "VDD_MMC_1.8V";     (must be unique for proper bind)"
>   addressing Przemyslaw's comments.
>
> Changes v2:
>   New patch. Update comments for regulator-name property.
>
>   doc/device-tree-bindings/regulator/regulator.txt | 19 ++++++++-----------
>   include/power/regulator.h                        |  1 +
>   2 files changed, 9 insertions(+), 11 deletions(-)
>
> diff --git a/doc/device-tree-bindings/regulator/regulator.txt b/doc/device-tree-bindings/regulator/regulator.txt
> index 68b02a8..2cf4b9d 100644
> --- a/doc/device-tree-bindings/regulator/regulator.txt
> +++ b/doc/device-tree-bindings/regulator/regulator.txt
> @@ -15,15 +15,8 @@ For the node name e.g.: "prefix[:alpha:]num { ... }":
>
>   Example the prefix "ldo" will pass for: "ldo1", "ldo at 1", "LDO1", "LDOREG at 1"...
>
> -Required properties:
> -- regulator-name: a string, required by the regulator uclass
> -
> -Note
> -The "regulator-name" constraint is used for setting the device's uclass
> -platform data '.name' field. And the regulator device name is set from
> -it's node name.
> -
>   Optional properties:
> +- regulator-name: a string, required by the regulator uclass
>   - regulator-min-microvolt: a minimum allowed Voltage value
>   - regulator-max-microvolt: a maximum allowed Voltage value
>   - regulator-min-microamp: a minimum allowed Current value
> @@ -31,6 +24,12 @@ Optional properties:
>   - regulator-always-on: regulator should never be disabled
>   - regulator-boot-on: enabled by bootloader/firmware
>
> +Note
> +The "regulator-name" constraint is used for setting the device's uclass
> +platform data '.name' field. And the regulator device name is set from
> +it's node name. If "regulator-name" is not provided in dts, node name
> +is chosen for setting the device's uclass platform data '.name' field.
> +
>   Other kernel-style properties, are currently not used.
>
>   Note:
> @@ -41,10 +40,8 @@ For the regulator autoset from constraints, the framework expects that:
>
>   Example:
>   ldo0 {
> -	/* Mandatory */
> -	regulator-name = "VDDQ_EMMC_1.8V";
> -
>   	/* Optional */
> +	regulator-name = "VDDQ_EMMC_1.8V";
>   	regulator-min-microvolt = <1800000>;
>   	regulator-max-microvolt = <1800000>;
>   	regulator-min-microamp = <100000>;
> diff --git a/include/power/regulator.h b/include/power/regulator.h
> index 0152290..1a51c3f 100644
> --- a/include/power/regulator.h
> +++ b/include/power/regulator.h
> @@ -46,6 +46,7 @@
>    * Note: For the proper operation, at least name constraint is needed, since
>    * it can be used when calling regulator_get_by_platname(). And the mandatory
>    * rule for this name is, that it must be globally unique for the single dts.
> + * If regulator-name property is not provided, node name will be chosen.
>    *
>    * Regulator bind:
>    * For each regulator device, the device_bind() should be called with passed
>

Applied to: u-boot-pmic.

Best regards,
-- 
Przemyslaw Marczak
Samsung R&D Institute Poland
Samsung Electronics
p.marczak at samsung.com

[U-Boot] [PATCH V3 4/6] power: pmic: pfuze100 support driver model

[Peng Fan]

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.

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>
---

Changes v3:
 Addressed Przemyslaw's comments:
 Keep the original driver.
 Use CONFIG_DM_PMIC_PFUZE100 in Makefile to cover the new driver.
 Discard the type cast for driver data.

Changes v2:
 Addressed Przemyslaw's comments:
  Rename PMIC_NUM_OF_REGS to PFUZE100_NUM_OF_REGS
  Sort variables' order
  Define PFUZE100_REGULATOR_DRIVER for "pfuze100_regulator" in header file.

 drivers/power/pmic/Kconfig    |  7 ++++
 drivers/power/pmic/Makefile   |  1 +
 drivers/power/pmic/pfuze100.c | 96 +++++++++++++++++++++++++++++++++++++++++++
 include/power/pfuze100_pmic.h |  7 +++-
 4 files changed, 110 insertions(+), 1 deletion(-)
 create mode 100644 drivers/power/pmic/pfuze100.c

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/Makefile b/drivers/power/pmic/Makefile
index 8c1ce3d..f49b236 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-$(CONFIG_DM_PMIC_PFUZE100) += pfuze100.o
 obj-$(CONFIG_DM_PMIC_SANDBOX) += sandbox.o i2c_pmic_emul.o
 obj-$(CONFIG_POWER_LTC3676) += pmic_ltc3676.o
 obj-$(CONFIG_POWER_MAX8998) += pmic_max8998.o
diff --git a/drivers/power/pmic/pfuze100.c b/drivers/power/pmic/pfuze100.c
new file mode 100644
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/include/power/pfuze100_pmic.h b/include/power/pfuze100_pmic.h
index cb10605..c40a976 100644
--- 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,
 };
 
 /*
-- 
1.8.4

[U-Boot] [PATCH V3 4/6] power: pmic: pfuze100 support driver model

[Przemyslaw Marczak]

Hello,

On 08/07/2015 10:43 AM, Peng Fan wrote:
> 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.
>
> 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>
> ---
>
> Changes v3:
>   Addressed Przemyslaw's comments:
>   Keep the original driver.
>   Use CONFIG_DM_PMIC_PFUZE100 in Makefile to cover the new driver.
>   Discard the type cast for driver data.
>
> Changes v2:
>   Addressed Przemyslaw's comments:
>    Rename PMIC_NUM_OF_REGS to PFUZE100_NUM_OF_REGS
>    Sort variables' order
>    Define PFUZE100_REGULATOR_DRIVER for "pfuze100_regulator" in header file.
>
>   drivers/power/pmic/Kconfig    |  7 ++++
>   drivers/power/pmic/Makefile   |  1 +
>   drivers/power/pmic/pfuze100.c | 96 +++++++++++++++++++++++++++++++++++++++++++
>   include/power/pfuze100_pmic.h |  7 +++-
>   4 files changed, 110 insertions(+), 1 deletion(-)
>   create mode 100644 drivers/power/pmic/pfuze100.c
>
> 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/Makefile b/drivers/power/pmic/Makefile
> index 8c1ce3d..f49b236 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-$(CONFIG_DM_PMIC_PFUZE100) += pfuze100.o
>   obj-$(CONFIG_DM_PMIC_SANDBOX) += sandbox.o i2c_pmic_emul.o
>   obj-$(CONFIG_POWER_LTC3676) += pmic_ltc3676.o
>   obj-$(CONFIG_POWER_MAX8998) += pmic_max8998.o
> diff --git a/drivers/power/pmic/pfuze100.c b/drivers/power/pmic/pfuze100.c
> new file mode 100644
> 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/include/power/pfuze100_pmic.h b/include/power/pfuze100_pmic.h
> index cb10605..c40a976 100644
> --- 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,
>   };
>
>   /*
>

Applied to: u-boot-pmic.

Best regards,
-- 
Przemyslaw Marczak
Samsung R&D Institute Poland
Samsung Electronics
p.marczak at samsung.com

[U-Boot] [PATCH V3 5/6] power: regulator: add pfuze100 support

[Peng Fan]

1. Add new regulator driver pfuze100.
   * Introduce struct pfuze100_regulator_desc for maintaining info
     for one regulator.
2. Add new Kconfig entry DM_REGULATOR_PFUZE100 for pfuze100.
3. This driver intends to support PF100, PF200 and PF3000.
4. Add related macro definition in pfuze header file.

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

Changes v3:
 Discard the double pointer, using "struct pfuze100_regulator_platdata"
 following Simon's suggestion.

Changes v2:
 Addressed Simon's comments.
 1. Use pmic_reg_read/pmic_reg_write/pmic_clrsetbits
 2. blank line between declarations and rest

 drivers/power/regulator/Kconfig    |   8 +
 drivers/power/regulator/Makefile   |   1 +
 drivers/power/regulator/pfuze100.c | 568 +++++++++++++++++++++++++++++++++++++
 include/power/pfuze100_pmic.h      |  24 +-
 4 files changed, 597 insertions(+), 4 deletions(-)
 create mode 100644 drivers/power/regulator/pfuze100.c

diff --git a/drivers/power/regulator/Kconfig b/drivers/power/regulator/Kconfig
index 6289b83..b854773 100644
--- a/drivers/power/regulator/Kconfig
+++ b/drivers/power/regulator/Kconfig
@@ -16,6 +16,14 @@ config DM_REGULATOR
 	for this purpose if PMIC I/O driver is implemented or dm_scan_fdt_node()
 	otherwise. Detailed information can be found in the header file.
 
+config DM_REGULATOR_PFUZE100
+	bool "Enable Driver Model for REGULATOR PFUZE100"
+	depends on DM_REGULATOR && DM_PMIC_PFUZE100
+	---help---
+	This config enables implementation of driver-model regulator uclass
+	features for REGULATOR PFUZE100. The driver implements get/set api for:
+	value, enable and mode.
+
 config DM_REGULATOR_MAX77686
 	bool "Enable Driver Model for REGULATOR MAX77686"
 	depends on DM_REGULATOR && DM_PMIC_MAX77686
diff --git a/drivers/power/regulator/Makefile b/drivers/power/regulator/Makefile
index 96aa624..9f8f17b 100644
--- a/drivers/power/regulator/Makefile
+++ b/drivers/power/regulator/Makefile
@@ -7,5 +7,6 @@
 
 obj-$(CONFIG_DM_REGULATOR) += regulator-uclass.o
 obj-$(CONFIG_DM_REGULATOR_MAX77686) += max77686.o
+obj-$(CONFIG_DM_REGULATOR_PFUZE100) += pfuze100.o
 obj-$(CONFIG_DM_REGULATOR_FIXED) += fixed.o
 obj-$(CONFIG_DM_REGULATOR_SANDBOX) += sandbox.o
diff --git a/drivers/power/regulator/pfuze100.c b/drivers/power/regulator/pfuze100.c
new file mode 100644
index 0000000..4702161
--- /dev/null
+++ b/drivers/power/regulator/pfuze100.c
@@ -0,0 +1,568 @@
+#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>
+
+/**
+ * struct pfuze100_regulator_desc - regulator descriptor
+ *
+ * @name: Identify name for the regulator.
+ * @type: Indicates the regulator type.
+ * @uV_step: Voltage increase for each selector.
+ * @vsel_reg: Register for adjust regulator voltage for normal.
+ * @vsel_mask: Mask bit for setting regulator voltage for normal.
+ * @stby_reg: Register for adjust regulator voltage for standby.
+ * @stby_mask: Mask bit for setting regulator voltage for standby.
+ * @volt_table: Voltage mapping table (if table based mapping).
+ * @voltage: Current voltage for REGULATOR_TYPE_FIXED type regulator.
+ */
+struct pfuze100_regulator_desc {
+	char *name;
+	enum regulator_type type;
+	unsigned int uV_step;
+	unsigned int vsel_reg;
+	unsigned int vsel_mask;
+	unsigned int stby_reg;
+	unsigned int stby_mask;
+	unsigned int *volt_table;
+	unsigned int voltage;
+};
+
+/**
+ * struct pfuze100_regulator_platdata - platform data for pfuze100
+ *
+ * @desc: Points the description entry of one regulator of pfuze100
+ */
+struct pfuze100_regulator_platdata {
+	struct pfuze100_regulator_desc *desc;
+};
+
+#define PFUZE100_FIXED_REG(_name, base, vol)				\
+	{								\
+		.name		=	#_name,				\
+		.type		=	REGULATOR_TYPE_FIXED,		\
+		.voltage	=	(vol),				\
+	}
+
+#define PFUZE100_SW_REG(_name, base, step)				\
+	{								\
+		.name		=	#_name,				\
+		.type		=	REGULATOR_TYPE_BUCK,		\
+		.uV_step	=	(step),				\
+		.vsel_reg	=	(base) + PFUZE100_VOL_OFFSET,	\
+		.vsel_mask	=	0x3F,				\
+		.stby_reg	=	(base) + PFUZE100_STBY_OFFSET,	\
+		.stby_mask	=	0x3F,				\
+	}
+
+#define PFUZE100_SWB_REG(_name, base, mask, step, voltages)		\
+	{								\
+		.name		=	#_name,				\
+		.type		=	REGULATOR_TYPE_BUCK,		\
+		.uV_step	=	(step),				\
+		.vsel_reg	=	(base),				\
+		.vsel_mask	=	(mask),				\
+		.volt_table	=	(voltages),			\
+	}
+
+#define PFUZE100_SNVS_REG(_name, base, mask, voltages)			\
+	{								\
+		.name		=	#_name,				\
+		.type		=	REGULATOR_TYPE_OTHER,		\
+		.vsel_reg	=	(base),				\
+		.vsel_mask	=	(mask),				\
+		.volt_table	=	(voltages),			\
+	}
+
+#define PFUZE100_VGEN_REG(_name, base, step)				\
+	{								\
+		.name		=	#_name,				\
+		.type		=	REGULATOR_TYPE_LDO,		\
+		.uV_step	=	(step),				\
+		.vsel_reg	=	(base),				\
+		.vsel_mask	=	0xF,				\
+		.stby_reg	=	(base),				\
+		.stby_mask	=	0x20,				\
+	}
+
+#define PFUZE3000_VCC_REG(_name, base, step)				\
+	{								\
+		.name		=	#_name,				\
+		.type		=	REGULATOR_TYPE_LDO,		\
+		.uV_step	=	(step),				\
+		.vsel_reg	=	(base),				\
+		.vsel_mask	=	0x3,				\
+		.stby_reg	=	(base),				\
+		.stby_mask	=	0x20,				\
+}
+
+#define PFUZE3000_SW1_REG(_name, base, step)				\
+	{								\
+		.name		=	#_name,				\
+		.type		=	REGULATOR_TYPE_BUCK,		\
+		.uV_step	=	(step),				\
+		.vsel_reg	=	(base) + PFUZE100_VOL_OFFSET,	\
+		.vsel_mask	=	0x1F,				\
+		.stby_reg	=	(base) + PFUZE100_STBY_OFFSET,	\
+		.stby_mask	=	0x1F,				\
+	}
+
+#define PFUZE3000_SW2_REG(_name, base, step)				\
+	{								\
+		.name		=	#_name,				\
+		.type		=	REGULATOR_TYPE_BUCK,		\
+		.uV_step	=	(step),				\
+		.vsel_reg	=	(base) + PFUZE100_VOL_OFFSET,	\
+		.vsel_mask	=	0x7,				\
+		.stby_reg	=	(base) + PFUZE100_STBY_OFFSET,	\
+		.stby_mask	=	0x7,				\
+	}
+
+#define PFUZE3000_SW3_REG(_name, base, step)				\
+	{								\
+		.name		=	#_name,				\
+		.type		=	REGULATOR_TYPE_BUCK,		\
+		.uV_step	=	(step),				\
+		.vsel_reg	=	(base) + PFUZE100_VOL_OFFSET,	\
+		.vsel_mask	=	0xF,				\
+		.stby_reg	=	(base) + PFUZE100_STBY_OFFSET,	\
+		.stby_mask	=	0xF,				\
+	}
+
+static unsigned int pfuze100_swbst[] = {
+	5000000, 5050000, 5100000, 5150000
+};
+
+static unsigned int pfuze100_vsnvs[] = {
+	1000000, 1100000, 1200000, 1300000, 1500000, 1800000, 3000000, -1
+};
+
+static unsigned int pfuze3000_vsnvs[] = {
+	-1, -1, -1, -1, -1, -1, 3000000, -1
+};
+
+static unsigned int pfuze3000_sw2lo[] = {
+	1500000, 1550000, 1600000, 1650000, 1700000, 1750000, 1800000, 1850000
+};
+
+/* PFUZE100 */
+static struct pfuze100_regulator_desc pfuze100_regulators[] = {
+	PFUZE100_SW_REG(sw1ab, PFUZE100_SW1ABVOL, 25000),
+	PFUZE100_SW_REG(sw1c, PFUZE100_SW1CVOL, 25000),
+	PFUZE100_SW_REG(sw2, PFUZE100_SW2VOL, 25000),
+	PFUZE100_SW_REG(sw3a, PFUZE100_SW3AVOL, 25000),
+	PFUZE100_SW_REG(sw3b, PFUZE100_SW3BVOL, 25000),
+	PFUZE100_SW_REG(sw4, PFUZE100_SW4VOL, 25000),
+	PFUZE100_SWB_REG(swbst, PFUZE100_SWBSTCON1, 0x3, 50000, pfuze100_swbst),
+	PFUZE100_SNVS_REG(vsnvs, PFUZE100_VSNVSVOL, 0x7, pfuze100_vsnvs),
+	PFUZE100_FIXED_REG(vrefddr, PFUZE100_VREFDDRCON, 750000),
+	PFUZE100_VGEN_REG(vgen1, PFUZE100_VGEN1VOL, 50000),
+	PFUZE100_VGEN_REG(vgen2, PFUZE100_VGEN2VOL, 50000),
+	PFUZE100_VGEN_REG(vgen3, PFUZE100_VGEN3VOL, 100000),
+	PFUZE100_VGEN_REG(vgen4, PFUZE100_VGEN4VOL, 100000),
+	PFUZE100_VGEN_REG(vgen5, PFUZE100_VGEN5VOL, 100000),
+	PFUZE100_VGEN_REG(vgen6, PFUZE100_VGEN6VOL, 100000),
+};
+
+/* PFUZE200 */
+static struct pfuze100_regulator_desc pfuze200_regulators[] = {
+	PFUZE100_SW_REG(sw1ab, PFUZE100_SW1ABVOL, 25000),
+	PFUZE100_SW_REG(sw2, PFUZE100_SW2VOL, 25000),
+	PFUZE100_SW_REG(sw3a, PFUZE100_SW3AVOL, 25000),
+	PFUZE100_SW_REG(sw3b, PFUZE100_SW3BVOL, 25000),
+	PFUZE100_SWB_REG(swbst, PFUZE100_SWBSTCON1, 0x3, 50000, pfuze100_swbst),
+	PFUZE100_SNVS_REG(vsnvs, PFUZE100_VSNVSVOL, 0x7, pfuze100_vsnvs),
+	PFUZE100_FIXED_REG(vrefddr, PFUZE100_VREFDDRCON, 750000),
+	PFUZE100_VGEN_REG(vgen1, PFUZE100_VGEN1VOL, 50000),
+	PFUZE100_VGEN_REG(vgen2, PFUZE100_VGEN2VOL, 50000),
+	PFUZE100_VGEN_REG(vgen3, PFUZE100_VGEN3VOL, 100000),
+	PFUZE100_VGEN_REG(vgen4, PFUZE100_VGEN4VOL, 100000),
+	PFUZE100_VGEN_REG(vgen5, PFUZE100_VGEN5VOL, 100000),
+	PFUZE100_VGEN_REG(vgen6, PFUZE100_VGEN6VOL, 100000),
+};
+
+/* PFUZE3000 */
+static struct pfuze100_regulator_desc pfuze3000_regulators[] = {
+	PFUZE3000_SW1_REG(sw1a, PFUZE100_SW1ABVOL, 25000),
+	PFUZE3000_SW1_REG(sw1b, PFUZE100_SW1CVOL, 25000),
+	PFUZE100_SWB_REG(sw2, PFUZE100_SW2VOL, 0x7, 50000, pfuze3000_sw2lo),
+	PFUZE3000_SW3_REG(sw3, PFUZE100_SW3AVOL, 50000),
+	PFUZE100_SWB_REG(swbst, PFUZE100_SWBSTCON1, 0x3, 50000, pfuze100_swbst),
+	PFUZE100_SNVS_REG(vsnvs, PFUZE100_VSNVSVOL, 0x7, pfuze3000_vsnvs),
+	PFUZE100_FIXED_REG(vrefddr, PFUZE100_VREFDDRCON, 750000),
+	PFUZE100_VGEN_REG(vldo1, PFUZE100_VGEN1VOL, 100000),
+	PFUZE100_VGEN_REG(vldo2, PFUZE100_VGEN2VOL, 50000),
+	PFUZE3000_VCC_REG(vccsd, PFUZE100_VGEN3VOL, 150000),
+	PFUZE3000_VCC_REG(v33, PFUZE100_VGEN4VOL, 150000),
+	PFUZE100_VGEN_REG(vldo3, PFUZE100_VGEN5VOL, 100000),
+	PFUZE100_VGEN_REG(vldo4, PFUZE100_VGEN6VOL, 100000),
+};
+
+#define MODE(_id, _val, _name) { \
+	.id = _id, \
+	.register_value = _val, \
+	.name = _name, \
+}
+
+/* SWx Buck regulator mode */
+static struct dm_regulator_mode pfuze_sw_modes[] = {
+	MODE(OFF_OFF, OFF_OFF, "OFF_OFF"),
+	MODE(PWM_OFF, PWM_OFF, "PWM_OFF"),
+	MODE(PFM_OFF, PFM_OFF, "PFM_OFF"),
+	MODE(APS_OFF, APS_OFF, "APS_OFF"),
+	MODE(PWM_PWM, PWM_PWM, "PWM_PWM"),
+	MODE(PWM_APS, PWM_APS, "PWM_APS"),
+	MODE(APS_APS, APS_APS, "APS_APS"),
+	MODE(APS_PFM, APS_PFM, "APS_PFM"),
+	MODE(PWM_PFM, PWM_PFM, "PWM_PFM"),
+};
+
+/* Boost Buck regulator mode for normal operation */
+static struct dm_regulator_mode pfuze_swbst_modes[] = {
+	MODE(SWBST_MODE_OFF, SWBST_MODE_OFF , "SWBST_MODE_OFF"),
+	MODE(SWBST_MODE_PFM, SWBST_MODE_PFM, "SWBST_MODE_PFM"),
+	MODE(SWBST_MODE_AUTO, SWBST_MODE_AUTO, "SWBST_MODE_AUTO"),
+	MODE(SWBST_MODE_APS, SWBST_MODE_APS, "SWBST_MODE_APS"),
+};
+
+/* VGENx LDO regulator mode for normal operation */
+static struct dm_regulator_mode pfuze_ldo_modes[] = {
+	MODE(LDO_MODE_OFF, LDO_MODE_OFF, "LDO_MODE_OFF"),
+	MODE(LDO_MODE_ON, LDO_MODE_ON, "LDO_MODE_ON"),
+};
+
+static struct pfuze100_regulator_desc *se_desc(struct pfuze100_regulator_desc *desc,
+					       int size,
+					       const char *name)
+{
+	int i;
+
+	for (i = 0; i < size; desc++) {
+		if (!strcmp(desc->name, name))
+			return desc;
+		continue;
+	}
+
+	return NULL;
+}
+
+static int pfuze100_regulator_probe(struct udevice *dev)
+{
+	struct dm_regulator_uclass_platdata *uc_pdata;
+	struct pfuze100_regulator_platdata *plat = dev_get_platdata(dev);
+	struct pfuze100_regulator_desc *desc;
+
+	switch (dev_get_driver_data(dev_get_parent(dev))) {
+	case PFUZE100:
+		desc = se_desc(pfuze100_regulators,
+			       ARRAY_SIZE(pfuze100_regulators),
+			       dev->name);
+		break;
+	case PFUZE200:
+		desc = se_desc(pfuze200_regulators,
+			       ARRAY_SIZE(pfuze200_regulators),
+			       dev->name);
+		break;
+	case PFUZE3000:
+		desc = se_desc(pfuze3000_regulators,
+			       ARRAY_SIZE(pfuze3000_regulators),
+			       dev->name);
+		break;
+	default:
+		debug("Unsupported PFUZE\n");
+		return -EINVAL;
+	}
+	if (!desc) {
+		debug("Do not support regulator %s\n", dev->name);
+		return -EINVAL;
+	}
+
+	plat->desc = desc;
+	uc_pdata = dev_get_uclass_platdata(dev);
+
+	uc_pdata->type = desc->type;
+	if (uc_pdata->type == REGULATOR_TYPE_BUCK) {
+		if (!strcmp(dev->name, "swbst")) {
+			uc_pdata->mode = pfuze_swbst_modes;
+			uc_pdata->mode_count = ARRAY_SIZE(pfuze_swbst_modes);
+		} else {
+			uc_pdata->mode = pfuze_sw_modes;
+			uc_pdata->mode_count = ARRAY_SIZE(pfuze_sw_modes);
+		}
+	} else if (uc_pdata->type == REGULATOR_TYPE_LDO) {
+		uc_pdata->mode = pfuze_ldo_modes;
+		uc_pdata->mode_count = ARRAY_SIZE(pfuze_ldo_modes);
+	} else {
+		uc_pdata->mode = NULL;
+		uc_pdata->mode_count = 0;
+	}
+
+	return 0;
+}
+
+static int pfuze100_regulator_mode(struct udevice *dev, int op, int *opmode)
+{
+	unsigned char val;
+	struct pfuze100_regulator_platdata *plat = dev_get_platdata(dev);
+	struct pfuze100_regulator_desc *desc = plat->desc;
+
+	if (op == PMIC_OP_GET) {
+		if (desc->type == REGULATOR_TYPE_BUCK) {
+			if (!strcmp(dev->name, "swbst")) {
+				val = pmic_reg_read(dev->parent,
+						    desc->vsel_reg);
+				if (val < 0)
+					return val;
+
+				val &= SWBST_MODE_MASK;
+				val >>= SWBST_MODE_SHIFT;
+				*opmode = val;
+
+				return 0;
+			}
+			val = pmic_reg_read(dev->parent,
+					    desc->vsel_reg +
+					    PFUZE100_MODE_OFFSET);
+			if (val < 0)
+				return val;
+
+			val &= SW_MODE_MASK;
+			val >>= SW_MODE_SHIFT;
+			*opmode = val;
+
+			return 0;
+
+		} else if (desc->type == REGULATOR_TYPE_LDO) {
+			val = pmic_reg_read(dev->parent, desc->vsel_reg);
+			if (val < 0)
+				return val;
+
+			val &= LDO_MODE_MASK;
+			val >>= LDO_MODE_SHIFT;
+			*opmode = val;
+
+			return 0;
+		} else {
+			return -EINVAL;
+		}
+	}
+
+	if (desc->type == REGULATOR_TYPE_BUCK) {
+		if (!strcmp(dev->name, "swbst"))
+			return pmic_clrsetbits(dev->parent, desc->vsel_reg,
+					       SWBST_MODE_MASK,
+					       *opmode << SWBST_MODE_SHIFT);
+
+		val = pmic_clrsetbits(dev->parent,
+				       desc->vsel_reg + PFUZE100_MODE_OFFSET,
+				       SW_MODE_MASK,
+				       *opmode << SW_MODE_SHIFT);
+
+	} else if (desc->type == REGULATOR_TYPE_LDO) {
+		val = pmic_clrsetbits(dev->parent, desc->vsel_reg,
+				       LDO_MODE_MASK,
+				       *opmode << LDO_MODE_SHIFT);
+		return val;
+	} else {
+		return -EINVAL;
+	}
+
+	return 0;
+}
+
+static int pfuze100_regulator_enable(struct udevice *dev, int op, bool *enable)
+{
+	unsigned char val;
+	int ret, on_off;
+	struct dm_regulator_uclass_platdata *uc_pdata =
+		dev_get_uclass_platdata(dev);
+
+	if (op == PMIC_OP_GET) {
+		if (!strcmp(dev->name, "vrefddr")) {
+			val = pmic_reg_read(dev->parent, PFUZE100_VREFDDRCON);
+			if (val < 0)
+				return val;
+
+			if (val & VREFDDRCON_EN)
+				*enable = true;
+			else
+				*enable = false;
+			return 0;
+		}
+		ret = pfuze100_regulator_mode(dev, op, &on_off);
+		if (ret)
+			return ret;
+		switch (on_off) {
+		/* OFF_OFF, SWBST_MODE_OFF, LDO_MODE_OFF have same value */
+		case OFF_OFF:
+			*enable = false;
+			break;
+		default:
+			*enable = true;
+			break;
+		}
+	} else if (op == PMIC_OP_SET) {
+		if (!strcmp(dev->name, "vrefddr")) {
+			val = pmic_reg_read(dev->parent, PFUZE100_VREFDDRCON);
+			if (val < 0)
+				return val;
+
+			if (val & VREFDDRCON_EN)
+				return 0;
+			val |= VREFDDRCON_EN;
+
+			return pmic_reg_write(dev->parent, PFUZE100_VREFDDRCON,
+					      val);
+		}
+
+		if (uc_pdata->type == REGULATOR_TYPE_LDO) {
+			on_off = *enable ? LDO_MODE_ON : LDO_MODE_OFF;
+		} else if (uc_pdata->type == REGULATOR_TYPE_BUCK) {
+			if (!strcmp(dev->name, "swbst"))
+				on_off = *enable ? SWBST_MODE_AUTO :
+					SWBST_MODE_OFF;
+			else
+				on_off = *enable ? APS_PFM : OFF_OFF;
+		} else {
+			return -EINVAL;
+		}
+
+		return pfuze100_regulator_mode(dev, op, &on_off);
+	}
+
+	return 0;
+}
+
+static int pfuze100_regulator_val(struct udevice *dev, int op, int *uV)
+{
+	int i;
+	unsigned char val;
+	struct pfuze100_regulator_platdata *plat = dev_get_platdata(dev);
+	struct pfuze100_regulator_desc *desc = plat->desc;
+	struct dm_regulator_uclass_platdata *uc_pdata =
+		dev_get_uclass_platdata(dev);
+
+	if (op == PMIC_OP_GET) {
+		*uV = 0;
+		if (uc_pdata->type == REGULATOR_TYPE_FIXED) {
+			*uV = desc->voltage;
+		} else if (desc->volt_table) {
+			val = pmic_reg_read(dev->parent, desc->vsel_reg);
+			if (val < 0)
+				return val;
+			val &= desc->vsel_mask;
+			*uV = desc->volt_table[val];
+		} else {
+			if (uc_pdata->min_uV < 0) {
+				debug("Need to provide min_uV in dts.\n");
+				return -EINVAL;
+			}
+			val = pmic_reg_read(dev->parent, desc->vsel_reg);
+			if (val < 0)
+				return val;
+			val &= desc->vsel_mask;
+			*uV = uc_pdata->min_uV + (int)val * desc->uV_step;
+		}
+
+		return 0;
+	}
+
+	if (uc_pdata->type == REGULATOR_TYPE_FIXED) {
+		debug("Set voltage for REGULATOR_TYPE_FIXED regulator\n");
+		return -EINVAL;
+	} else if (desc->volt_table) {
+		for (i = 0; i < desc->vsel_mask; i++) {
+			if (*uV == desc->volt_table[i])
+				break;
+		}
+		if (i == desc->vsel_mask) {
+			debug("Unsupported voltage %u\n", *uV);
+			return -EINVAL;
+		}
+
+		return pmic_clrsetbits(dev->parent, desc->vsel_reg,
+				       desc->vsel_mask, i);
+	} else {
+		if (uc_pdata->min_uV < 0) {
+			debug("Need to provide min_uV in dts.\n");
+			return -EINVAL;
+		}
+		return pmic_clrsetbits(dev->parent, desc->vsel_reg,
+				       desc->vsel_mask,
+				       (*uV - uc_pdata->min_uV) / desc->uV_step);
+	}
+
+	return 0;
+}
+
+static int pfuze100_regulator_get_value(struct udevice *dev)
+{
+	int uV;
+	int ret;
+
+	ret = pfuze100_regulator_val(dev, PMIC_OP_GET, &uV);
+	if (ret)
+		return ret;
+
+	return uV;
+}
+
+static int pfuze100_regulator_set_value(struct udevice *dev, int uV)
+{
+	return pfuze100_regulator_val(dev, PMIC_OP_SET, &uV);
+}
+
+static bool pfuze100_regulator_get_enable(struct udevice *dev)
+{
+	int ret;
+	bool enable = false;
+
+	ret = pfuze100_regulator_enable(dev, PMIC_OP_GET, &enable);
+	if (ret)
+		return ret;
+
+	return enable;
+}
+
+static int pfuze100_regulator_set_enable(struct udevice *dev, bool enable)
+{
+	return pfuze100_regulator_enable(dev, PMIC_OP_SET, &enable);
+}
+
+static int pfuze100_regulator_get_mode(struct udevice *dev)
+{
+	int mode;
+	int ret;
+
+	ret = pfuze100_regulator_mode(dev, PMIC_OP_GET, &mode);
+	if (ret)
+		return ret;
+
+	return mode;
+}
+
+static int pfuze100_regulator_set_mode(struct udevice *dev, int mode)
+{
+	return pfuze100_regulator_mode(dev, PMIC_OP_SET, &mode);
+}
+
+static const struct dm_regulator_ops pfuze100_regulator_ops = {
+	.get_value  = pfuze100_regulator_get_value,
+	.set_value  = pfuze100_regulator_set_value,
+	.get_enable = pfuze100_regulator_get_enable,
+	.set_enable = pfuze100_regulator_set_enable,
+	.get_mode   = pfuze100_regulator_get_mode,
+	.set_mode   = pfuze100_regulator_set_mode,
+};
+
+U_BOOT_DRIVER(pfuze100_regulator) = {
+	.name = "pfuze100_regulator",
+	.id = UCLASS_REGULATOR,
+	.ops = &pfuze100_regulator_ops,
+	.probe = pfuze100_regulator_probe,
+	.platdata_auto_alloc_size = sizeof(struct pfuze100_regulator_platdata),
+};
diff --git a/include/power/pfuze100_pmic.h b/include/power/pfuze100_pmic.h
index c40a976..41cb710 100644
--- a/include/power/pfuze100_pmic.h
+++ b/include/power/pfuze100_pmic.h
@@ -62,6 +62,13 @@ enum {
 	PFUZE100_NUM_OF_REGS	= 0x7f,
 };
 
+/* Registor offset based on VOLT register */
+#define PFUZE100_VOL_OFFSET	0
+#define PFUZE100_STBY_OFFSET	1
+#define PFUZE100_OFF_OFFSET	2
+#define PFUZE100_MODE_OFFSET	3
+#define PFUZE100_CONF_OFFSET	4
+
 /*
  * Buck Regulators
  */
@@ -138,6 +145,9 @@ enum {
 #define SW1x_STBY_MASK    0x3f
 #define SW1x_OFF_MASK     0x3f
 
+#define SW_MODE_MASK	0xf
+#define SW_MODE_SHIFT	0
+
 #define SW1xCONF_DVSSPEED_MASK 0xc0
 #define SW1xCONF_DVSSPEED_2US  0x00
 #define SW1xCONF_DVSSPEED_4US  0x40
@@ -186,7 +196,12 @@ enum {
 
 #define LDO_VOL_MASK	0xf
 #define LDO_EN		(1 << 4)
+#define LDO_MODE_SHIFT	4
+#define LDO_MODE_MASK	(1 << 4)
+#define LDO_MODE_OFF	0
+#define LDO_MODE_ON	1
 
+#define VREFDDRCON_EN	(1 << 4)
 /*
  * Boost Regulator
  */
@@ -199,10 +214,11 @@ enum {
 
 #define SWBST_VOL_MASK	0x3
 #define SWBST_MODE_MASK	0xC
-#define SWBST_MODE_OFF	(0 << 2)
-#define SWBST_MODE_PFM	(1 << 2)
-#define SWBST_MODE_AUTO	(2 << 2)
-#define SWBST_MODE_APS	(3 << 2)
+#define SWBST_MODE_SHIFT 0x2
+#define SWBST_MODE_OFF	0
+#define SWBST_MODE_PFM	1
+#define SWBST_MODE_AUTO	2
+#define SWBST_MODE_APS	3
 
 /*
  * Regulator Mode Control
-- 
1.8.4

[U-Boot] [PATCH V3 5/6] power: regulator: add pfuze100 support

[Simon Glass]

On 7 August 2015 at 02:43, Peng Fan <Peng.Fan@freescale.com> wrote:
> 1. Add new regulator driver pfuze100.
>    * Introduce struct pfuze100_regulator_desc for maintaining info
>      for one regulator.
> 2. Add new Kconfig entry DM_REGULATOR_PFUZE100 for pfuze100.
> 3. This driver intends to support PF100, PF200 and PF3000.
> 4. Add related macro definition in pfuze header file.
>
> Signed-off-by: Peng Fan <Peng.Fan@freescale.com>
> Cc: Przemyslaw Marczak <p.marczak@samsung.com>
> Cc: Simon Glass <sjg@chromium.org>
> ---
>
> Changes v3:
>  Discard the double pointer, using "struct pfuze100_regulator_platdata"
>  following Simon's suggestion.
>
> Changes v2:
>  Addressed Simon's comments.
>  1. Use pmic_reg_read/pmic_reg_write/pmic_clrsetbits
>  2. blank line between declarations and rest
>
>  drivers/power/regulator/Kconfig    |   8 +
>  drivers/power/regulator/Makefile   |   1 +
>  drivers/power/regulator/pfuze100.c | 568 +++++++++++++++++++++++++++++++++++++
>  include/power/pfuze100_pmic.h      |  24 +-
>  4 files changed, 597 insertions(+), 4 deletions(-)
>  create mode 100644 drivers/power/regulator/pfuze100.c

Acked-by: Simon Glass <sjg@chromium.org>

[U-Boot] [PATCH V3 5/6] power: regulator: add pfuze100 support

[Przemyslaw Marczak]

Hello,

On 08/07/2015 10:43 AM, Peng Fan wrote:
> 1. Add new regulator driver pfuze100.
>     * Introduce struct pfuze100_regulator_desc for maintaining info
>       for one regulator.
> 2. Add new Kconfig entry DM_REGULATOR_PFUZE100 for pfuze100.
> 3. This driver intends to support PF100, PF200 and PF3000.
> 4. Add related macro definition in pfuze header file.
>
> Signed-off-by: Peng Fan <Peng.Fan@freescale.com>
> Cc: Przemyslaw Marczak <p.marczak@samsung.com>
> Cc: Simon Glass <sjg@chromium.org>
> ---
>
> Changes v3:
>   Discard the double pointer, using "struct pfuze100_regulator_platdata"
>   following Simon's suggestion.
>
> Changes v2:
>   Addressed Simon's comments.
>   1. Use pmic_reg_read/pmic_reg_write/pmic_clrsetbits
>   2. blank line between declarations and rest
>
>   drivers/power/regulator/Kconfig    |   8 +
>   drivers/power/regulator/Makefile   |   1 +
>   drivers/power/regulator/pfuze100.c | 568 +++++++++++++++++++++++++++++++++++++
>   include/power/pfuze100_pmic.h      |  24 +-
>   4 files changed, 597 insertions(+), 4 deletions(-)
>   create mode 100644 drivers/power/regulator/pfuze100.c
>
> diff --git a/drivers/power/regulator/Kconfig b/drivers/power/regulator/Kconfig
> index 6289b83..b854773 100644
> --- a/drivers/power/regulator/Kconfig
> +++ b/drivers/power/regulator/Kconfig
> @@ -16,6 +16,14 @@ config DM_REGULATOR
>   	for this purpose if PMIC I/O driver is implemented or dm_scan_fdt_node()
>   	otherwise. Detailed information can be found in the header file.
>
> +config DM_REGULATOR_PFUZE100
> +	bool "Enable Driver Model for REGULATOR PFUZE100"
> +	depends on DM_REGULATOR && DM_PMIC_PFUZE100
> +	---help---
> +	This config enables implementation of driver-model regulator uclass
> +	features for REGULATOR PFUZE100. The driver implements get/set api for:
> +	value, enable and mode.
> +
>   config DM_REGULATOR_MAX77686
>   	bool "Enable Driver Model for REGULATOR MAX77686"
>   	depends on DM_REGULATOR && DM_PMIC_MAX77686
> diff --git a/drivers/power/regulator/Makefile b/drivers/power/regulator/Makefile
> index 96aa624..9f8f17b 100644
> --- a/drivers/power/regulator/Makefile
> +++ b/drivers/power/regulator/Makefile
> @@ -7,5 +7,6 @@
>
>   obj-$(CONFIG_DM_REGULATOR) += regulator-uclass.o
>   obj-$(CONFIG_DM_REGULATOR_MAX77686) += max77686.o
> +obj-$(CONFIG_DM_REGULATOR_PFUZE100) += pfuze100.o
>   obj-$(CONFIG_DM_REGULATOR_FIXED) += fixed.o
>   obj-$(CONFIG_DM_REGULATOR_SANDBOX) += sandbox.o
> diff --git a/drivers/power/regulator/pfuze100.c b/drivers/power/regulator/pfuze100.c
> new file mode 100644
> index 0000000..4702161
> --- /dev/null
> +++ b/drivers/power/regulator/pfuze100.c
> @@ -0,0 +1,568 @@
> +#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>
> +
> +/**
> + * struct pfuze100_regulator_desc - regulator descriptor
> + *
> + * @name: Identify name for the regulator.
> + * @type: Indicates the regulator type.
> + * @uV_step: Voltage increase for each selector.
> + * @vsel_reg: Register for adjust regulator voltage for normal.
> + * @vsel_mask: Mask bit for setting regulator voltage for normal.
> + * @stby_reg: Register for adjust regulator voltage for standby.
> + * @stby_mask: Mask bit for setting regulator voltage for standby.
> + * @volt_table: Voltage mapping table (if table based mapping).
> + * @voltage: Current voltage for REGULATOR_TYPE_FIXED type regulator.
> + */
> +struct pfuze100_regulator_desc {
> +	char *name;
> +	enum regulator_type type;
> +	unsigned int uV_step;
> +	unsigned int vsel_reg;
> +	unsigned int vsel_mask;
> +	unsigned int stby_reg;
> +	unsigned int stby_mask;
> +	unsigned int *volt_table;
> +	unsigned int voltage;
> +};
> +
> +/**
> + * struct pfuze100_regulator_platdata - platform data for pfuze100
> + *
> + * @desc: Points the description entry of one regulator of pfuze100
> + */
> +struct pfuze100_regulator_platdata {
> +	struct pfuze100_regulator_desc *desc;
> +};
> +
> +#define PFUZE100_FIXED_REG(_name, base, vol)				\
> +	{								\
> +		.name		=	#_name,				\
> +		.type		=	REGULATOR_TYPE_FIXED,		\
> +		.voltage	=	(vol),				\
> +	}
> +
> +#define PFUZE100_SW_REG(_name, base, step)				\
> +	{								\
> +		.name		=	#_name,				\
> +		.type		=	REGULATOR_TYPE_BUCK,		\
> +		.uV_step	=	(step),				\
> +		.vsel_reg	=	(base) + PFUZE100_VOL_OFFSET,	\
> +		.vsel_mask	=	0x3F,				\
> +		.stby_reg	=	(base) + PFUZE100_STBY_OFFSET,	\
> +		.stby_mask	=	0x3F,				\
> +	}
> +
> +#define PFUZE100_SWB_REG(_name, base, mask, step, voltages)		\
> +	{								\
> +		.name		=	#_name,				\
> +		.type		=	REGULATOR_TYPE_BUCK,		\
> +		.uV_step	=	(step),				\
> +		.vsel_reg	=	(base),				\
> +		.vsel_mask	=	(mask),				\
> +		.volt_table	=	(voltages),			\
> +	}
> +
> +#define PFUZE100_SNVS_REG(_name, base, mask, voltages)			\
> +	{								\
> +		.name		=	#_name,				\
> +		.type		=	REGULATOR_TYPE_OTHER,		\
> +		.vsel_reg	=	(base),				\
> +		.vsel_mask	=	(mask),				\
> +		.volt_table	=	(voltages),			\
> +	}
> +
> +#define PFUZE100_VGEN_REG(_name, base, step)				\
> +	{								\
> +		.name		=	#_name,				\
> +		.type		=	REGULATOR_TYPE_LDO,		\
> +		.uV_step	=	(step),				\
> +		.vsel_reg	=	(base),				\
> +		.vsel_mask	=	0xF,				\
> +		.stby_reg	=	(base),				\
> +		.stby_mask	=	0x20,				\
> +	}
> +
> +#define PFUZE3000_VCC_REG(_name, base, step)				\
> +	{								\
> +		.name		=	#_name,				\
> +		.type		=	REGULATOR_TYPE_LDO,		\
> +		.uV_step	=	(step),				\
> +		.vsel_reg	=	(base),				\
> +		.vsel_mask	=	0x3,				\
> +		.stby_reg	=	(base),				\
> +		.stby_mask	=	0x20,				\
> +}
> +
> +#define PFUZE3000_SW1_REG(_name, base, step)				\
> +	{								\
> +		.name		=	#_name,				\
> +		.type		=	REGULATOR_TYPE_BUCK,		\
> +		.uV_step	=	(step),				\
> +		.vsel_reg	=	(base) + PFUZE100_VOL_OFFSET,	\
> +		.vsel_mask	=	0x1F,				\
> +		.stby_reg	=	(base) + PFUZE100_STBY_OFFSET,	\
> +		.stby_mask	=	0x1F,				\
> +	}
> +
> +#define PFUZE3000_SW2_REG(_name, base, step)				\
> +	{								\
> +		.name		=	#_name,				\
> +		.type		=	REGULATOR_TYPE_BUCK,		\
> +		.uV_step	=	(step),				\
> +		.vsel_reg	=	(base) + PFUZE100_VOL_OFFSET,	\
> +		.vsel_mask	=	0x7,				\
> +		.stby_reg	=	(base) + PFUZE100_STBY_OFFSET,	\
> +		.stby_mask	=	0x7,				\
> +	}
> +
> +#define PFUZE3000_SW3_REG(_name, base, step)				\
> +	{								\
> +		.name		=	#_name,				\
> +		.type		=	REGULATOR_TYPE_BUCK,		\
> +		.uV_step	=	(step),				\
> +		.vsel_reg	=	(base) + PFUZE100_VOL_OFFSET,	\
> +		.vsel_mask	=	0xF,				\
> +		.stby_reg	=	(base) + PFUZE100_STBY_OFFSET,	\
> +		.stby_mask	=	0xF,				\
> +	}
> +
> +static unsigned int pfuze100_swbst[] = {
> +	5000000, 5050000, 5100000, 5150000
> +};
> +
> +static unsigned int pfuze100_vsnvs[] = {
> +	1000000, 1100000, 1200000, 1300000, 1500000, 1800000, 3000000, -1
> +};
> +
> +static unsigned int pfuze3000_vsnvs[] = {
> +	-1, -1, -1, -1, -1, -1, 3000000, -1
> +};
> +
> +static unsigned int pfuze3000_sw2lo[] = {
> +	1500000, 1550000, 1600000, 1650000, 1700000, 1750000, 1800000, 1850000
> +};
> +
> +/* PFUZE100 */
> +static struct pfuze100_regulator_desc pfuze100_regulators[] = {
> +	PFUZE100_SW_REG(sw1ab, PFUZE100_SW1ABVOL, 25000),
> +	PFUZE100_SW_REG(sw1c, PFUZE100_SW1CVOL, 25000),
> +	PFUZE100_SW_REG(sw2, PFUZE100_SW2VOL, 25000),
> +	PFUZE100_SW_REG(sw3a, PFUZE100_SW3AVOL, 25000),
> +	PFUZE100_SW_REG(sw3b, PFUZE100_SW3BVOL, 25000),
> +	PFUZE100_SW_REG(sw4, PFUZE100_SW4VOL, 25000),
> +	PFUZE100_SWB_REG(swbst, PFUZE100_SWBSTCON1, 0x3, 50000, pfuze100_swbst),
> +	PFUZE100_SNVS_REG(vsnvs, PFUZE100_VSNVSVOL, 0x7, pfuze100_vsnvs),
> +	PFUZE100_FIXED_REG(vrefddr, PFUZE100_VREFDDRCON, 750000),
> +	PFUZE100_VGEN_REG(vgen1, PFUZE100_VGEN1VOL, 50000),
> +	PFUZE100_VGEN_REG(vgen2, PFUZE100_VGEN2VOL, 50000),
> +	PFUZE100_VGEN_REG(vgen3, PFUZE100_VGEN3VOL, 100000),
> +	PFUZE100_VGEN_REG(vgen4, PFUZE100_VGEN4VOL, 100000),
> +	PFUZE100_VGEN_REG(vgen5, PFUZE100_VGEN5VOL, 100000),
> +	PFUZE100_VGEN_REG(vgen6, PFUZE100_VGEN6VOL, 100000),
> +};
> +
> +/* PFUZE200 */
> +static struct pfuze100_regulator_desc pfuze200_regulators[] = {
> +	PFUZE100_SW_REG(sw1ab, PFUZE100_SW1ABVOL, 25000),
> +	PFUZE100_SW_REG(sw2, PFUZE100_SW2VOL, 25000),
> +	PFUZE100_SW_REG(sw3a, PFUZE100_SW3AVOL, 25000),
> +	PFUZE100_SW_REG(sw3b, PFUZE100_SW3BVOL, 25000),
> +	PFUZE100_SWB_REG(swbst, PFUZE100_SWBSTCON1, 0x3, 50000, pfuze100_swbst),
> +	PFUZE100_SNVS_REG(vsnvs, PFUZE100_VSNVSVOL, 0x7, pfuze100_vsnvs),
> +	PFUZE100_FIXED_REG(vrefddr, PFUZE100_VREFDDRCON, 750000),
> +	PFUZE100_VGEN_REG(vgen1, PFUZE100_VGEN1VOL, 50000),
> +	PFUZE100_VGEN_REG(vgen2, PFUZE100_VGEN2VOL, 50000),
> +	PFUZE100_VGEN_REG(vgen3, PFUZE100_VGEN3VOL, 100000),
> +	PFUZE100_VGEN_REG(vgen4, PFUZE100_VGEN4VOL, 100000),
> +	PFUZE100_VGEN_REG(vgen5, PFUZE100_VGEN5VOL, 100000),
> +	PFUZE100_VGEN_REG(vgen6, PFUZE100_VGEN6VOL, 100000),
> +};
> +
> +/* PFUZE3000 */
> +static struct pfuze100_regulator_desc pfuze3000_regulators[] = {
> +	PFUZE3000_SW1_REG(sw1a, PFUZE100_SW1ABVOL, 25000),
> +	PFUZE3000_SW1_REG(sw1b, PFUZE100_SW1CVOL, 25000),
> +	PFUZE100_SWB_REG(sw2, PFUZE100_SW2VOL, 0x7, 50000, pfuze3000_sw2lo),
> +	PFUZE3000_SW3_REG(sw3, PFUZE100_SW3AVOL, 50000),
> +	PFUZE100_SWB_REG(swbst, PFUZE100_SWBSTCON1, 0x3, 50000, pfuze100_swbst),
> +	PFUZE100_SNVS_REG(vsnvs, PFUZE100_VSNVSVOL, 0x7, pfuze3000_vsnvs),
> +	PFUZE100_FIXED_REG(vrefddr, PFUZE100_VREFDDRCON, 750000),
> +	PFUZE100_VGEN_REG(vldo1, PFUZE100_VGEN1VOL, 100000),
> +	PFUZE100_VGEN_REG(vldo2, PFUZE100_VGEN2VOL, 50000),
> +	PFUZE3000_VCC_REG(vccsd, PFUZE100_VGEN3VOL, 150000),
> +	PFUZE3000_VCC_REG(v33, PFUZE100_VGEN4VOL, 150000),
> +	PFUZE100_VGEN_REG(vldo3, PFUZE100_VGEN5VOL, 100000),
> +	PFUZE100_VGEN_REG(vldo4, PFUZE100_VGEN6VOL, 100000),
> +};
> +
> +#define MODE(_id, _val, _name) { \
> +	.id = _id, \
> +	.register_value = _val, \
> +	.name = _name, \
> +}
> +
> +/* SWx Buck regulator mode */
> +static struct dm_regulator_mode pfuze_sw_modes[] = {
> +	MODE(OFF_OFF, OFF_OFF, "OFF_OFF"),
> +	MODE(PWM_OFF, PWM_OFF, "PWM_OFF"),
> +	MODE(PFM_OFF, PFM_OFF, "PFM_OFF"),
> +	MODE(APS_OFF, APS_OFF, "APS_OFF"),
> +	MODE(PWM_PWM, PWM_PWM, "PWM_PWM"),
> +	MODE(PWM_APS, PWM_APS, "PWM_APS"),
> +	MODE(APS_APS, APS_APS, "APS_APS"),
> +	MODE(APS_PFM, APS_PFM, "APS_PFM"),
> +	MODE(PWM_PFM, PWM_PFM, "PWM_PFM"),
> +};
> +
> +/* Boost Buck regulator mode for normal operation */
> +static struct dm_regulator_mode pfuze_swbst_modes[] = {
> +	MODE(SWBST_MODE_OFF, SWBST_MODE_OFF , "SWBST_MODE_OFF"),
> +	MODE(SWBST_MODE_PFM, SWBST_MODE_PFM, "SWBST_MODE_PFM"),
> +	MODE(SWBST_MODE_AUTO, SWBST_MODE_AUTO, "SWBST_MODE_AUTO"),
> +	MODE(SWBST_MODE_APS, SWBST_MODE_APS, "SWBST_MODE_APS"),
> +};
> +
> +/* VGENx LDO regulator mode for normal operation */
> +static struct dm_regulator_mode pfuze_ldo_modes[] = {
> +	MODE(LDO_MODE_OFF, LDO_MODE_OFF, "LDO_MODE_OFF"),
> +	MODE(LDO_MODE_ON, LDO_MODE_ON, "LDO_MODE_ON"),
> +};
> +
> +static struct pfuze100_regulator_desc *se_desc(struct pfuze100_regulator_desc *desc,
> +					       int size,
> +					       const char *name)
> +{
> +	int i;
> +
> +	for (i = 0; i < size; desc++) {
> +		if (!strcmp(desc->name, name))
> +			return desc;
> +		continue;
> +	}
> +
> +	return NULL;
> +}
> +
> +static int pfuze100_regulator_probe(struct udevice *dev)
> +{
> +	struct dm_regulator_uclass_platdata *uc_pdata;
> +	struct pfuze100_regulator_platdata *plat = dev_get_platdata(dev);
> +	struct pfuze100_regulator_desc *desc;
> +
> +	switch (dev_get_driver_data(dev_get_parent(dev))) {
> +	case PFUZE100:
> +		desc = se_desc(pfuze100_regulators,
> +			       ARRAY_SIZE(pfuze100_regulators),
> +			       dev->name);
> +		break;
> +	case PFUZE200:
> +		desc = se_desc(pfuze200_regulators,
> +			       ARRAY_SIZE(pfuze200_regulators),
> +			       dev->name);
> +		break;
> +	case PFUZE3000:
> +		desc = se_desc(pfuze3000_regulators,
> +			       ARRAY_SIZE(pfuze3000_regulators),
> +			       dev->name);
> +		break;
> +	default:
> +		debug("Unsupported PFUZE\n");
> +		return -EINVAL;
> +	}
> +	if (!desc) {
> +		debug("Do not support regulator %s\n", dev->name);
> +		return -EINVAL;
> +	}
> +
> +	plat->desc = desc;
> +	uc_pdata = dev_get_uclass_platdata(dev);
> +
> +	uc_pdata->type = desc->type;
> +	if (uc_pdata->type == REGULATOR_TYPE_BUCK) {
> +		if (!strcmp(dev->name, "swbst")) {
> +			uc_pdata->mode = pfuze_swbst_modes;
> +			uc_pdata->mode_count = ARRAY_SIZE(pfuze_swbst_modes);
> +		} else {
> +			uc_pdata->mode = pfuze_sw_modes;
> +			uc_pdata->mode_count = ARRAY_SIZE(pfuze_sw_modes);
> +		}
> +	} else if (uc_pdata->type == REGULATOR_TYPE_LDO) {
> +		uc_pdata->mode = pfuze_ldo_modes;
> +		uc_pdata->mode_count = ARRAY_SIZE(pfuze_ldo_modes);
> +	} else {
> +		uc_pdata->mode = NULL;
> +		uc_pdata->mode_count = 0;
> +	}
> +
> +	return 0;
> +}
> +
> +static int pfuze100_regulator_mode(struct udevice *dev, int op, int *opmode)
> +{
> +	unsigned char val;
> +	struct pfuze100_regulator_platdata *plat = dev_get_platdata(dev);
> +	struct pfuze100_regulator_desc *desc = plat->desc;
> +
> +	if (op == PMIC_OP_GET) {
> +		if (desc->type == REGULATOR_TYPE_BUCK) {
> +			if (!strcmp(dev->name, "swbst")) {
> +				val = pmic_reg_read(dev->parent,
> +						    desc->vsel_reg);
> +				if (val < 0)
> +					return val;
> +
> +				val &= SWBST_MODE_MASK;
> +				val >>= SWBST_MODE_SHIFT;
> +				*opmode = val;
> +
> +				return 0;
> +			}
> +			val = pmic_reg_read(dev->parent,
> +					    desc->vsel_reg +
> +					    PFUZE100_MODE_OFFSET);
> +			if (val < 0)
> +				return val;
> +
> +			val &= SW_MODE_MASK;
> +			val >>= SW_MODE_SHIFT;
> +			*opmode = val;
> +
> +			return 0;
> +
> +		} else if (desc->type == REGULATOR_TYPE_LDO) {
> +			val = pmic_reg_read(dev->parent, desc->vsel_reg);
> +			if (val < 0)
> +				return val;
> +
> +			val &= LDO_MODE_MASK;
> +			val >>= LDO_MODE_SHIFT;
> +			*opmode = val;
> +
> +			return 0;
> +		} else {
> +			return -EINVAL;
> +		}
> +	}
> +
> +	if (desc->type == REGULATOR_TYPE_BUCK) {
> +		if (!strcmp(dev->name, "swbst"))
> +			return pmic_clrsetbits(dev->parent, desc->vsel_reg,
> +					       SWBST_MODE_MASK,
> +					       *opmode << SWBST_MODE_SHIFT);
> +
> +		val = pmic_clrsetbits(dev->parent,
> +				       desc->vsel_reg + PFUZE100_MODE_OFFSET,
> +				       SW_MODE_MASK,
> +				       *opmode << SW_MODE_SHIFT);
> +
> +	} else if (desc->type == REGULATOR_TYPE_LDO) {
> +		val = pmic_clrsetbits(dev->parent, desc->vsel_reg,
> +				       LDO_MODE_MASK,
> +				       *opmode << LDO_MODE_SHIFT);
> +		return val;
> +	} else {
> +		return -EINVAL;
> +	}
> +
> +	return 0;
> +}
> +
> +static int pfuze100_regulator_enable(struct udevice *dev, int op, bool *enable)
> +{
> +	unsigned char val;
> +	int ret, on_off;
> +	struct dm_regulator_uclass_platdata *uc_pdata =
> +		dev_get_uclass_platdata(dev);
> +
> +	if (op == PMIC_OP_GET) {
> +		if (!strcmp(dev->name, "vrefddr")) {
> +			val = pmic_reg_read(dev->parent, PFUZE100_VREFDDRCON);
> +			if (val < 0)
> +				return val;
> +
> +			if (val & VREFDDRCON_EN)
> +				*enable = true;
> +			else
> +				*enable = false;
> +			return 0;
> +		}
> +		ret = pfuze100_regulator_mode(dev, op, &on_off);
> +		if (ret)
> +			return ret;
> +		switch (on_off) {
> +		/* OFF_OFF, SWBST_MODE_OFF, LDO_MODE_OFF have same value */
> +		case OFF_OFF:
> +			*enable = false;
> +			break;
> +		default:
> +			*enable = true;
> +			break;
> +		}
> +	} else if (op == PMIC_OP_SET) {
> +		if (!strcmp(dev->name, "vrefddr")) {
> +			val = pmic_reg_read(dev->parent, PFUZE100_VREFDDRCON);
> +			if (val < 0)
> +				return val;
> +
> +			if (val & VREFDDRCON_EN)
> +				return 0;
> +			val |= VREFDDRCON_EN;
> +
> +			return pmic_reg_write(dev->parent, PFUZE100_VREFDDRCON,
> +					      val);
> +		}
> +
> +		if (uc_pdata->type == REGULATOR_TYPE_LDO) {
> +			on_off = *enable ? LDO_MODE_ON : LDO_MODE_OFF;
> +		} else if (uc_pdata->type == REGULATOR_TYPE_BUCK) {
> +			if (!strcmp(dev->name, "swbst"))
> +				on_off = *enable ? SWBST_MODE_AUTO :
> +					SWBST_MODE_OFF;
> +			else
> +				on_off = *enable ? APS_PFM : OFF_OFF;
> +		} else {
> +			return -EINVAL;
> +		}
> +
> +		return pfuze100_regulator_mode(dev, op, &on_off);
> +	}
> +
> +	return 0;
> +}
> +
> +static int pfuze100_regulator_val(struct udevice *dev, int op, int *uV)
> +{
> +	int i;
> +	unsigned char val;
> +	struct pfuze100_regulator_platdata *plat = dev_get_platdata(dev);
> +	struct pfuze100_regulator_desc *desc = plat->desc;
> +	struct dm_regulator_uclass_platdata *uc_pdata =
> +		dev_get_uclass_platdata(dev);
> +
> +	if (op == PMIC_OP_GET) {
> +		*uV = 0;
> +		if (uc_pdata->type == REGULATOR_TYPE_FIXED) {
> +			*uV = desc->voltage;
> +		} else if (desc->volt_table) {
> +			val = pmic_reg_read(dev->parent, desc->vsel_reg);
> +			if (val < 0)
> +				return val;
> +			val &= desc->vsel_mask;
> +			*uV = desc->volt_table[val];
> +		} else {
> +			if (uc_pdata->min_uV < 0) {
> +				debug("Need to provide min_uV in dts.\n");
> +				return -EINVAL;
> +			}
> +			val = pmic_reg_read(dev->parent, desc->vsel_reg);
> +			if (val < 0)
> +				return val;
> +			val &= desc->vsel_mask;
> +			*uV = uc_pdata->min_uV + (int)val * desc->uV_step;
> +		}
> +
> +		return 0;
> +	}
> +
> +	if (uc_pdata->type == REGULATOR_TYPE_FIXED) {
> +		debug("Set voltage for REGULATOR_TYPE_FIXED regulator\n");
> +		return -EINVAL;
> +	} else if (desc->volt_table) {
> +		for (i = 0; i < desc->vsel_mask; i++) {
> +			if (*uV == desc->volt_table[i])
> +				break;
> +		}
> +		if (i == desc->vsel_mask) {
> +			debug("Unsupported voltage %u\n", *uV);
> +			return -EINVAL;
> +		}
> +
> +		return pmic_clrsetbits(dev->parent, desc->vsel_reg,
> +				       desc->vsel_mask, i);
> +	} else {
> +		if (uc_pdata->min_uV < 0) {
> +			debug("Need to provide min_uV in dts.\n");
> +			return -EINVAL;
> +		}
> +		return pmic_clrsetbits(dev->parent, desc->vsel_reg,
> +				       desc->vsel_mask,
> +				       (*uV - uc_pdata->min_uV) / desc->uV_step);
> +	}
> +
> +	return 0;
> +}
> +
> +static int pfuze100_regulator_get_value(struct udevice *dev)
> +{
> +	int uV;
> +	int ret;
> +
> +	ret = pfuze100_regulator_val(dev, PMIC_OP_GET, &uV);
> +	if (ret)
> +		return ret;
> +
> +	return uV;
> +}
> +
> +static int pfuze100_regulator_set_value(struct udevice *dev, int uV)
> +{
> +	return pfuze100_regulator_val(dev, PMIC_OP_SET, &uV);
> +}
> +
> +static bool pfuze100_regulator_get_enable(struct udevice *dev)
> +{
> +	int ret;
> +	bool enable = false;
> +
> +	ret = pfuze100_regulator_enable(dev, PMIC_OP_GET, &enable);
> +	if (ret)
> +		return ret;
> +
> +	return enable;
> +}
> +
> +static int pfuze100_regulator_set_enable(struct udevice *dev, bool enable)
> +{
> +	return pfuze100_regulator_enable(dev, PMIC_OP_SET, &enable);
> +}
> +
> +static int pfuze100_regulator_get_mode(struct udevice *dev)
> +{
> +	int mode;
> +	int ret;
> +
> +	ret = pfuze100_regulator_mode(dev, PMIC_OP_GET, &mode);
> +	if (ret)
> +		return ret;
> +
> +	return mode;
> +}
> +
> +static int pfuze100_regulator_set_mode(struct udevice *dev, int mode)
> +{
> +	return pfuze100_regulator_mode(dev, PMIC_OP_SET, &mode);
> +}
> +
> +static const struct dm_regulator_ops pfuze100_regulator_ops = {
> +	.get_value  = pfuze100_regulator_get_value,
> +	.set_value  = pfuze100_regulator_set_value,
> +	.get_enable = pfuze100_regulator_get_enable,
> +	.set_enable = pfuze100_regulator_set_enable,
> +	.get_mode   = pfuze100_regulator_get_mode,
> +	.set_mode   = pfuze100_regulator_set_mode,
> +};
> +
> +U_BOOT_DRIVER(pfuze100_regulator) = {
> +	.name = "pfuze100_regulator",
> +	.id = UCLASS_REGULATOR,
> +	.ops = &pfuze100_regulator_ops,
> +	.probe = pfuze100_regulator_probe,
> +	.platdata_auto_alloc_size = sizeof(struct pfuze100_regulator_platdata),
> +};
> diff --git a/include/power/pfuze100_pmic.h b/include/power/pfuze100_pmic.h
> index c40a976..41cb710 100644
> --- a/include/power/pfuze100_pmic.h
> +++ b/include/power/pfuze100_pmic.h
> @@ -62,6 +62,13 @@ enum {
>   	PFUZE100_NUM_OF_REGS	= 0x7f,
>   };
>
> +/* Registor offset based on VOLT register */
> +#define PFUZE100_VOL_OFFSET	0
> +#define PFUZE100_STBY_OFFSET	1
> +#define PFUZE100_OFF_OFFSET	2
> +#define PFUZE100_MODE_OFFSET	3
> +#define PFUZE100_CONF_OFFSET	4
> +
>   /*
>    * Buck Regulators
>    */
> @@ -138,6 +145,9 @@ enum {
>   #define SW1x_STBY_MASK    0x3f
>   #define SW1x_OFF_MASK     0x3f
>
> +#define SW_MODE_MASK	0xf
> +#define SW_MODE_SHIFT	0
> +
>   #define SW1xCONF_DVSSPEED_MASK 0xc0
>   #define SW1xCONF_DVSSPEED_2US  0x00
>   #define SW1xCONF_DVSSPEED_4US  0x40
> @@ -186,7 +196,12 @@ enum {
>
>   #define LDO_VOL_MASK	0xf
>   #define LDO_EN		(1 << 4)
> +#define LDO_MODE_SHIFT	4
> +#define LDO_MODE_MASK	(1 << 4)
> +#define LDO_MODE_OFF	0
> +#define LDO_MODE_ON	1
>
> +#define VREFDDRCON_EN	(1 << 4)
>   /*
>    * Boost Regulator
>    */
> @@ -199,10 +214,11 @@ enum {
>
>   #define SWBST_VOL_MASK	0x3
>   #define SWBST_MODE_MASK	0xC
> -#define SWBST_MODE_OFF	(0 << 2)
> -#define SWBST_MODE_PFM	(1 << 2)
> -#define SWBST_MODE_AUTO	(2 << 2)
> -#define SWBST_MODE_APS	(3 << 2)
> +#define SWBST_MODE_SHIFT 0x2
> +#define SWBST_MODE_OFF	0
> +#define SWBST_MODE_PFM	1
> +#define SWBST_MODE_AUTO	2
> +#define SWBST_MODE_APS	3
>
>   /*
>    * Regulator Mode Control
>

Applied to: u-boot-pmic.

Best regards,
-- 
Przemyslaw Marczak
Samsung R&D Institute Poland
Samsung Electronics
p.marczak at samsung.com

[U-Boot] [PATCH V3 6/6] fsl: common: pfuze: no use original pfuze code if DM_PMIC

[Peng Fan]

If enable DM PMIC and REGULATOR, we should not use original power
framework. So need to comment out the pfuze code for original power
framework, when CONFIG_DM_PMIC_PFUZE100 defined.

Signed-off-by: Peng Fan <Peng.Fan@freescale.com>
Cc: Przemyslaw Marczak <p.marczak@samsung.com>
Cc: Simon Glass <sjg@chromium.org>
Cc: Stefano Babic <sbabic@denx.de>
Reviewed-by: Simon Glass <sjg@chromium.org>
---

Changes v3:
 None

Changes v2:
 None

 board/freescale/common/pfuze.c | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/board/freescale/common/pfuze.c b/board/freescale/common/pfuze.c
index d6a209e..783c46d 100644
--- a/board/freescale/common/pfuze.c
+++ b/board/freescale/common/pfuze.c
@@ -9,6 +9,7 @@
 #include <power/pmic.h>
 #include <power/pfuze100_pmic.h>
 
+#ifndef CONFIG_DM_PMIC_PFUZE100
 int pfuze_mode_init(struct pmic *p, u32 mode)
 {
 	unsigned char offset, i, switch_num;
@@ -90,3 +91,4 @@ struct pmic *pfuze_common_init(unsigned char i2cbus)
 
 	return p;
 }
+#endif
-- 
1.8.4

[U-Boot] [PATCH V3 6/6] fsl: common: pfuze: no use original pfuze code if DM_PMIC

[Przemyslaw Marczak]

Hello,

On 08/07/2015 10:43 AM, Peng Fan wrote:
> If enable DM PMIC and REGULATOR, we should not use original power
> framework. So need to comment out the pfuze code for original power
> framework, when CONFIG_DM_PMIC_PFUZE100 defined.
>
> Signed-off-by: Peng Fan <Peng.Fan@freescale.com>
> Cc: Przemyslaw Marczak <p.marczak@samsung.com>
> Cc: Simon Glass <sjg@chromium.org>
> Cc: Stefano Babic <sbabic@denx.de>
> Reviewed-by: Simon Glass <sjg@chromium.org>
> ---
>
> Changes v3:
>   None
>
> Changes v2:
>   None
>
>   board/freescale/common/pfuze.c | 2 ++
>   1 file changed, 2 insertions(+)
>
> diff --git a/board/freescale/common/pfuze.c b/board/freescale/common/pfuze.c
> index d6a209e..783c46d 100644
> --- a/board/freescale/common/pfuze.c
> +++ b/board/freescale/common/pfuze.c
> @@ -9,6 +9,7 @@
>   #include <power/pmic.h>
>   #include <power/pfuze100_pmic.h>
>
> +#ifndef CONFIG_DM_PMIC_PFUZE100
>   int pfuze_mode_init(struct pmic *p, u32 mode)
>   {
>   	unsigned char offset, i, switch_num;
> @@ -90,3 +91,4 @@ struct pmic *pfuze_common_init(unsigned char i2cbus)
>
>   	return p;
>   }
> +#endif
>

Applied to: u-boot-pmic.

Best regards,
-- 
Przemyslaw Marczak
Samsung R&D Institute Poland
Samsung Electronics
p.marczak at samsung.com