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pmic: Add Renesas RAA215300 PMIC driver

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The RZ/G2L SMARC module is powered via a Renesas RAA215300 PMIC which
provides several voltage converters, a real time clock (RTC) and reset
control. A basic driver is implemented for this device so that we can
read, write and dump the PMIC registers.

The raa215300_bind() function is added as a stub, binding of the
sysreset driver will be added in a later patch.

Additional features of this PMIC (such as reset control) may be
supported by future patches.

Signed-off-by: Paul Barker <paul.barker.ct@bp.renesas.com>
Reviewed-by: Marek Vasut <marek.vasut+renesas@mailbox.org>
This commit is contained in:
Paul Barker 2024-02-27 20:40:31 +00:00 committed by Marek Vasut
parent 266e36f7ec
commit af22872152
3 changed files with 51 additions and 0 deletions
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9
drivers/power/pmic/Kconfig
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@ -404,6 +404,15 @@ config PMIC_TPS65219
help
The TPS65219 is a PMIC containing a bunch of SMPS & LDOs.
This driver binds the pmic children.
config PMIC_RAA215300
bool "Renesas RAA215300 PMIC driver"
depends on DM_PMIC
help
The Renesas RAA215300 PMIC driver includes RTC support, system reset
support and several voltage regulators. For now, this driver simply
allows register access and will bind the sysreset driver
(CONFIG_SYSRESET_RAA215300) if it is enabled.
endif
config PMIC_TPS65217

1
drivers/power/pmic/Makefile
View file

@ -35,6 +35,7 @@ obj-$(CONFIG_PMIC_STPMIC1) += stpmic1.o
obj-$(CONFIG_PMIC_TPS65217) += pmic_tps65217.o
obj-$(CONFIG_PMIC_TPS65219) += tps65219.o
obj-$(CONFIG_PMIC_TPS65941) += tps65941.o
obj-$(CONFIG_PMIC_RAA215300) += raa215300.o
obj-$(CONFIG_POWER_TPS65218) += pmic_tps65218.o
ifeq ($(CONFIG_$(SPL_)POWER_LEGACY),y)

41
drivers/power/pmic/raa215300.c Normal file
View file

@ -0,0 +1,41 @@
// SPDX-License-Identifier: GPL-2.0+
/*
* Copyright (C) 2023 Renesas Electronics Corporation
*/
#include <dm.h>
#include <dm/device-internal.h>
#include <dm/lists.h>
#include <i2c.h>
#include <power/pmic.h>
#define RAA215300_REG_COUNT 0x80
static int raa215300_reg_count(struct udevice *dev)
{
return RAA215300_REG_COUNT;
}
static struct dm_pmic_ops raa215300_ops = {
.reg_count = raa215300_reg_count,
.read = dm_i2c_read,
.write = dm_i2c_write,
};
static const struct udevice_id raa215300_ids[] = {
{ .compatible = "renesas,raa215300" },
{ /* sentinel */ }
};
static int raa215300_bind(struct udevice *dev)
{
return 0;
}
U_BOOT_DRIVER(raa215300_pmic) = {
.name = "raa215300_pmic",
.id = UCLASS_PMIC,
.of_match = raa215300_ids,
.bind = raa215300_bind,
.ops = &raa215300_ops,
};