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author | Stefan Agner <stefan.agner@toradex.com> | 2016-10-05 15:27:09 -0700 |
---|---|---|
committer | Stefano Babic <sbabic@denx.de> | 2016-10-07 12:26:15 +0200 |
commit | c571d6828d980e555ba40baf85aab45b39e118ee (patch) | |
tree | 182c5b63cff0e692de06d5efec2463f1c417aaaa /drivers | |
parent | aa723b8dbfbd61f12d400650f34d47ac1db04820 (diff) | |
download | u-boot-c571d6828d980e555ba40baf85aab45b39e118ee.zip u-boot-c571d6828d980e555ba40baf85aab45b39e118ee.tar.gz u-boot-c571d6828d980e555ba40baf85aab45b39e118ee.tar.bz2 |
power: pmic: add Ricoh RN5T567 PMIC support
Add device model enabled PMIC driver for Ricoh RN5T567 PMIC used
on Colibri iMX7.
Signed-off-by: Stefan Agner <stefan.agner@toradex.com>
Reviewed-by: Simon Glass <sjg@chromium.org>
Diffstat (limited to 'drivers')
-rw-r--r-- | drivers/power/pmic/Kconfig | 8 | ||||
-rw-r--r-- | drivers/power/pmic/Makefile | 1 | ||||
-rw-r--r-- | drivers/power/pmic/rn5t567.c | 64 |
3 files changed, 73 insertions, 0 deletions
diff --git a/drivers/power/pmic/Kconfig b/drivers/power/pmic/Kconfig index 69f8d51..13d293a 100644 --- a/drivers/power/pmic/Kconfig +++ b/drivers/power/pmic/Kconfig @@ -127,6 +127,14 @@ config PMIC_S5M8767 driver provides basic register access and sets up the attached regulators if regulator support is enabled. +config PMIC_RN5T567 + bool "Enable driver for Ricoh RN5T567 PMIC" + depends on DM_PMIC + ---help--- + The RN5T567 is a PMIC with 4 step-down DC/DC converters, 5 LDO + regulators Real-Time Clock and 4 GPIOs. This driver provides + register access only. + config PMIC_TPS65090 bool "Enable driver for Texas Instruments TPS65090 PMIC" depends on DM_PMIC diff --git a/drivers/power/pmic/Makefile b/drivers/power/pmic/Makefile index 52b4f71..37d9eb5 100644 --- a/drivers/power/pmic/Makefile +++ b/drivers/power/pmic/Makefile @@ -13,6 +13,7 @@ obj-$(CONFIG_DM_PMIC_SANDBOX) += sandbox.o i2c_pmic_emul.o obj-$(CONFIG_PMIC_ACT8846) += act8846.o obj-$(CONFIG_PMIC_PM8916) += pm8916.o obj-$(CONFIG_PMIC_RK808) += rk808.o +obj-$(CONFIG_PMIC_RN5T567) += rn5t567.o obj-$(CONFIG_PMIC_TPS65090) += tps65090.o obj-$(CONFIG_PMIC_S5M8767) += s5m8767.o diff --git a/drivers/power/pmic/rn5t567.c b/drivers/power/pmic/rn5t567.c new file mode 100644 index 0000000..001e695 --- /dev/null +++ b/drivers/power/pmic/rn5t567.c @@ -0,0 +1,64 @@ +/* + * Copyright (C) 2016 Toradex AG + * Stefan Agner <stefan.agner@toradex.com> + * + * SPDX-License-Identifier: GPL-2.0+ + */ + +#include <common.h> +#include <dm.h> +#include <errno.h> +#include <fdtdec.h> +#include <libfdt.h> +#include <power/rn5t567_pmic.h> +#include <power/pmic.h> + +static int rn5t567_reg_count(struct udevice *dev) +{ + return RN5T567_NUM_OF_REGS; +} + +static int rn5t567_write(struct udevice *dev, uint reg, const uint8_t *buff, + int len) +{ + int ret; + + ret = dm_i2c_write(dev, reg, buff, len); + if (ret) { + debug("write error to device: %p register: %#x!", dev, reg); + return ret; + } + + return 0; +} + +static int rn5t567_read(struct udevice *dev, uint reg, uint8_t *buff, int len) +{ + int ret; + + ret = dm_i2c_read(dev, reg, buff, len); + if (ret) { + debug("read error from device: %p register: %#x!", dev, reg); + return ret; + } + + return 0; +} + +static struct dm_pmic_ops rn5t567_ops = { + .reg_count = rn5t567_reg_count, + .read = rn5t567_read, + .write = rn5t567_write, +}; + +static const struct udevice_id rn5t567_ids[] = { + { .compatible = "ricoh,rn5t567" }, + { } +}; + +U_BOOT_DRIVER(pmic_rn5t567) = { + .name = "rn5t567 pmic", + .id = UCLASS_PMIC, + .of_match = rn5t567_ids, + .ops = &rn5t567_ops, +}; |