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, };
/*