| Message ID | 20211015122551.38951-4-alistair@alistair23.me (mailing list archive) |
|---|---|
| State | New, archived |
| Headers | show |
| Series | Add support for the silergy,sy7636a | expand |
On Fri, 15 Oct 2021, Alistair Francis wrote: > Signed-off-by: Alistair Francis <alistair@alistair23.me> > Acked-for-MFD-by: Lee Jones <lee.jones@linaro.org> > --- > drivers/mfd/simple-mfd-i2c.c | 12 +++++++++++ > include/linux/mfd/sy7636a.h | 41 ++++++++++++++++++++++++++++++++++++ > 2 files changed, 53 insertions(+) > create mode 100644 include/linux/mfd/sy7636a.h > > diff --git a/drivers/mfd/simple-mfd-i2c.c b/drivers/mfd/simple-mfd-i2c.c > index 51536691ad9d..fbc6d6aed6c0 100644 > --- a/drivers/mfd/simple-mfd-i2c.c > +++ b/drivers/mfd/simple-mfd-i2c.c > @@ -62,8 +62,20 @@ static int simple_mfd_i2c_probe(struct i2c_client *i2c) > return ret; > } > > +static const struct mfd_cell sy7636a_cells[] = { > + { .name = "sy7636a-regulator", }, > + { .name = "sy7636a-temperature", }, > + { .name = "sy7636a-thermal", }, > +}; > + > +static const struct simple_mfd_data silergy_sy7636a = { > + .mfd_cell = sy7636a_cells, > + .mfd_cell_size = ARRAY_SIZE(sy7636a_cells), > +}; > + > static const struct of_device_id simple_mfd_i2c_of_match[] = { > { .compatible = "kontron,sl28cpld" }, > + { .compatible = "silergy,sy7636a", .data = &silergy_sy7636a}, > {} > }; > MODULE_DEVICE_TABLE(of, simple_mfd_i2c_of_match); > diff --git a/include/linux/mfd/sy7636a.h b/include/linux/mfd/sy7636a.h > new file mode 100644 > index 000000000000..15caa54f0432 > --- /dev/null > +++ b/include/linux/mfd/sy7636a.h > @@ -0,0 +1,41 @@ > +/* SPDX-License-Identifier: GPL-2.0-only */ > +/* > + * Functions to access SY3686A power management chip. > + * > + * Copyright (C) 2021 reMarkable AS - http://www.remarkable.com/ > + */ > + > +#ifndef __MFD_SY7636A_H > +#define __MFD_SY7636A_H > + > +#include <linux/i2c.h> > +#include <linux/regmap.h> > +#include <linux/regulator/driver.h> > +#include <linux/regulator/machine.h> Why are these needed? > +#define SY7636A_REG_OPERATION_MODE_CRL 0x00 > +#define SY7636A_OPERATION_MODE_CRL_VCOMCTL BIT(6) > +#define SY7636A_OPERATION_MODE_CRL_ONOFF BIT(7) > +#define SY7636A_REG_VCOM_ADJUST_CTRL_L 0x01 > +#define SY7636A_REG_VCOM_ADJUST_CTRL_H 0x02 > +#define SY7636A_REG_VCOM_ADJUST_CTRL_MASK 0x01ff > +#define SY7636A_REG_VLDO_VOLTAGE_ADJULST_CTRL 0x03 > +#define SY7636A_REG_POWER_ON_DELAY_TIME 0x06 > +#define SY7636A_REG_FAULT_FLAG 0x07 > +#define SY7636A_FAULT_FLAG_PG BIT(0) > +#define SY7636A_REG_TERMISTOR_READOUT 0x08 > + > +#define SY7636A_REG_MAX 0x08 > + > +#define VCOM_MIN 0 > +#define VCOM_MAX 5000 > + > +#define VCOM_ADJUST_CTRL_MASK 0x1ff > +// Used to shift the high byte > +#define VCOM_ADJUST_CTRL_SHIFT 8 > +// Used to scale from VCOM_ADJUST_CTRL to mv > +#define VCOM_ADJUST_CTRL_SCAL 10000 > + > +#define FAULT_FLAG_SHIFT 1 > + > +#endif /* __LINUX_MFD_SY7636A_H */
diff --git a/drivers/mfd/simple-mfd-i2c.c b/drivers/mfd/simple-mfd-i2c.c index 51536691ad9d..fbc6d6aed6c0 100644 --- a/drivers/mfd/simple-mfd-i2c.c +++ b/drivers/mfd/simple-mfd-i2c.c @@ -62,8 +62,20 @@ static int simple_mfd_i2c_probe(struct i2c_client *i2c) return ret; } +static const struct mfd_cell sy7636a_cells[] = { + { .name = "sy7636a-regulator", }, + { .name = "sy7636a-temperature", }, + { .name = "sy7636a-thermal", }, +}; + +static const struct simple_mfd_data silergy_sy7636a = { + .mfd_cell = sy7636a_cells, + .mfd_cell_size = ARRAY_SIZE(sy7636a_cells), +}; + static const struct of_device_id simple_mfd_i2c_of_match[] = { { .compatible = "kontron,sl28cpld" }, + { .compatible = "silergy,sy7636a", .data = &silergy_sy7636a}, {} }; MODULE_DEVICE_TABLE(of, simple_mfd_i2c_of_match); diff --git a/include/linux/mfd/sy7636a.h b/include/linux/mfd/sy7636a.h new file mode 100644 index 000000000000..15caa54f0432 --- /dev/null +++ b/include/linux/mfd/sy7636a.h @@ -0,0 +1,41 @@ +/* SPDX-License-Identifier: GPL-2.0-only */ +/* + * Functions to access SY3686A power management chip. + * + * Copyright (C) 2021 reMarkable AS - http://www.remarkable.com/ + */ + +#ifndef __MFD_SY7636A_H +#define __MFD_SY7636A_H + +#include <linux/i2c.h> +#include <linux/regmap.h> +#include <linux/regulator/driver.h> +#include <linux/regulator/machine.h> + +#define SY7636A_REG_OPERATION_MODE_CRL 0x00 +#define SY7636A_OPERATION_MODE_CRL_VCOMCTL BIT(6) +#define SY7636A_OPERATION_MODE_CRL_ONOFF BIT(7) +#define SY7636A_REG_VCOM_ADJUST_CTRL_L 0x01 +#define SY7636A_REG_VCOM_ADJUST_CTRL_H 0x02 +#define SY7636A_REG_VCOM_ADJUST_CTRL_MASK 0x01ff +#define SY7636A_REG_VLDO_VOLTAGE_ADJULST_CTRL 0x03 +#define SY7636A_REG_POWER_ON_DELAY_TIME 0x06 +#define SY7636A_REG_FAULT_FLAG 0x07 +#define SY7636A_FAULT_FLAG_PG BIT(0) +#define SY7636A_REG_TERMISTOR_READOUT 0x08 + +#define SY7636A_REG_MAX 0x08 + +#define VCOM_MIN 0 +#define VCOM_MAX 5000 + +#define VCOM_ADJUST_CTRL_MASK 0x1ff +// Used to shift the high byte +#define VCOM_ADJUST_CTRL_SHIFT 8 +// Used to scale from VCOM_ADJUST_CTRL to mv +#define VCOM_ADJUST_CTRL_SCAL 10000 + +#define FAULT_FLAG_SHIFT 1 + +#endif /* __LINUX_MFD_SY7636A_H */
Signed-off-by: Alistair Francis <alistair@alistair23.me> Acked-for-MFD-by: Lee Jones <lee.jones@linaro.org> --- drivers/mfd/simple-mfd-i2c.c | 12 +++++++++++ include/linux/mfd/sy7636a.h | 41 ++++++++++++++++++++++++++++++++++++ 2 files changed, 53 insertions(+) create mode 100644 include/linux/mfd/sy7636a.h