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Date: Tue, 13 Sep 2022 11:08:22 +0800
From: ChiYuan Huang <u0084500@...il.com>
To: Sebastian Reichel <sebastian.reichel@...labora.com>
Cc: Rob Herring <robh+dt@...nel.org>,
Krzysztof Kozlowski <krzysztof.kozlowski+dt@...aro.org>,
Matti Vaittinen <mazziesaccount@...il.com>,
游子馨 <alina_yu@...htek.com>,
cy_huang <cy_huang@...htek.com>, alinayu829@...il.com,
Linux PM <linux-pm@...r.kernel.org>,
"open list:OPEN FIRMWARE AND FLATTENED DEVICE TREE BINDINGS"
<devicetree@...r.kernel.org>, lkml <linux-kernel@...r.kernel.org>
Subject: Re: [PATCH v4 2/3] power: supply: rt9471: Add Richtek RT9471 charger driver
Sebastian Reichel <sebastian.reichel@...labora.com> 於 2022年9月12日 週一 晚上7:26寫道：
>
> Hi,
>
> On Mon, Aug 29, 2022 at 11:06:30AM +0800, cy_huang wrote:
> > From: ChiYuan Huang <cy_huang@...htek.com>
> >
> > Add support for the RT9471 3A 1-Cell Li+ battery charger.
> >
> > The RT9471 is a highly-integrated 3A switch mode battery charger with
> > low impedance power path to better optimize the charging efficiency.
> >
> > Co-developed-by: Alina Yu <alina_yu@...htek.com>
> > Signed-off-by: Alina Yu <alina_yu@...htek.com>
> > Signed-off-by: ChiYuan Huang <cy_huang@...htek.com>
> > ---
> > Since v4:
> > - Remove the line for the owner field in driver.
> >
> > Since v2:
> > - Fix checkpatch error about 'foo * bar' to 'foo *bar' in psy_device_to_chip function.
> > - Specify the member name directly for the use of linear range.
> >
> > ---
>
> Thanks, driver looks mostly good.
>
> > drivers/power/supply/Kconfig | 16 +
> > drivers/power/supply/Makefile | 1 +
> > drivers/power/supply/rt9471.c | 952 ++++++++++++++++++++++++++++++++++++++++++
> > drivers/power/supply/rt9471.h | 76 ++++
> > 4 files changed, 1045 insertions(+)
> > create mode 100644 drivers/power/supply/rt9471.c
> > create mode 100644 drivers/power/supply/rt9471.h
> >
> > [...]
> > +static inline int rt9471_set_hiz(struct rt9471_chip *chip, int enable)
> > +{
> > + return regmap_field_write(chip->rm_fields[F_HZ], enable);
> > +}
> > +
> > +static inline int rt9471_set_ichg(struct rt9471_chip *chip, int microamp)
> > +{
> > + return rt9471_set_value_by_field_range(chip, F_ICHG_REG,
> > + RT9471_RANGE_ICHG, microamp);
> > +}
> > +
> > +static inline int rt9471_get_ichg(struct rt9471_chip *chip, int *microamp)
> > +{
> > + return rt9471_get_value_by_field_range(chip, F_ICHG_REG,
> > + RT9471_RANGE_ICHG, microamp);
> > +}
> > +
> > +static inline int rt9471_set_cv(struct rt9471_chip *chip, int microvolt)
> > +{
> > + return rt9471_set_value_by_field_range(chip, F_VBAT_REG,
> > + RT9471_RANGE_VCHG, microvolt);
> > +}
> > +
> > +static inline int rt9471_get_cv(struct rt9471_chip *chip, int *microamp)
> > +{
> > + return rt9471_get_value_by_field_range(chip, F_VBAT_REG,
> > + RT9471_RANGE_VCHG, microamp);
> > +}
> > +
> > +static inline int rt9471_set_mivr(struct rt9471_chip *chip, int microvolt)
> > +{
> > + return rt9471_set_value_by_field_range(chip, F_MIVR,
> > + RT9471_RANGE_MIVR, microvolt);
> > +}
> > +
> > +static inline int rt9471_get_mivr(struct rt9471_chip *chip, int *microvolt)
> > +{
> > + return rt9471_get_value_by_field_range(chip, F_MIVR,
> > + RT9471_RANGE_MIVR, microvolt);
> > +}
> > +
> > +static inline int rt9471_set_aicr(struct rt9471_chip *chip, int microamp)
> > +{
> > + return rt9471_set_value_by_field_range(chip, F_AICR, RT9471_RANGE_AICR,
> > + microamp);
> > +}
> > +
> > +static inline int rt9471_get_aicr(struct rt9471_chip *chip, int *microamp)
> > +{
> > + return rt9471_get_value_by_field_range(chip, F_AICR, RT9471_RANGE_AICR,
> > + microamp);
> > +}
> > +
> > +static inline int rt9471_set_iprechg(struct rt9471_chip *chip, int microamp)
> > +{
> > + return rt9471_set_value_by_field_range(chip, F_IPRE_CHG,
> > + RT9471_RANGE_IPRE, microamp);
> > +}
> > +
> > +static inline int rt9471_get_iprechg(struct rt9471_chip *chip, int *microamp)
> > +{
> > + return rt9471_get_value_by_field_range(chip, F_IPRE_CHG,
> > + RT9471_RANGE_IPRE, microamp);
> > +}
> > +
> > +static inline int rt9471_set_ieoc(struct rt9471_chip *chip, int microamp)
> > +{
> > + return rt9471_set_value_by_field_range(chip, F_IEOC_CHG,
> > + RT9471_RANGE_IEOC, microamp);
> > +}
> > +
> > +static inline int rt9471_get_ieoc(struct rt9471_chip *chip, int *microamp)
> > +{
> > + return rt9471_get_value_by_field_range(chip, F_IEOC_CHG,
> > + RT9471_RANGE_IEOC, microamp);
> > +}
> > +
> > +static inline int rt9471_set_chg_enable(struct rt9471_chip *chip, int enable)
> > +{
> > + return regmap_field_write(chip->rm_fields[F_CHG_EN], !!enable);
> > +}
>
> Please drop these one line wrappers.
Will only keep set_ieoc/get_ieoc function, remove 'inline'
declaration, and integrate CHG_TE switch state.
>
> > [...]
> > diff --git a/drivers/power/supply/rt9471.h b/drivers/power/supply/rt9471.h
> > new file mode 100644
> > index 00000000..f3d8e23
> > --- /dev/null
> > +++ b/drivers/power/supply/rt9471.h
> > @@ -0,0 +1,76 @@
> > +/* SPDX-License-Identifier: GPL-2.0-only */
> > +/* Copyright (C) 2022 Richtek Technology Corp. */
> > +
> > +#ifndef __RT9471_CHARGER_H
> > +#define __RT9471_CHARGER_H
> > +
> > +#define RT9471_IRQ_BC12_DONE 0
> > +#define RT9471_IRQ_DETACH 1
> > +#define RT9471_IRQ_RECHG 2
> > +#define RT9471_IRQ_CHG_DONE 3
> > +#define RT9471_IRQ_BG_CHG 4
> > +#define RT9471_IRQ_IE0C 5
> > +#define RT9471_IRQ_CHG_RDY 6
> > +#define RT9471_IRQ_VBUS_GD 7
> > +#define RT9471_IRQ_CHG_BATOV 9
> > +#define RT9471_IRQ_CHG_SYSOV 10
> > +#define RT9471_IRQ_CHG_TOUT 11
> > +#define RT9471_IRQ_CHG_BUSUV 12
> > +#define RT9471_IRQ_CHG_THREG 13
> > +#define RT9471_IRQ_CHG_AICR 14
> > +#define RT9471_IRQ_CHG_MIVR 15
> > +#define RT9471_IRQ_SYS_SHORT 16
> > +#define RT9471_IRQ_SYS_MIN 17
> > +#define RT9471_IRQ_AICC_DONE 18
> > +#define RT9471_IRQ_PE_DONE 19
> > +#define RT9471_IRQ_JEITA_COLD 20
> > +#define RT9471_IRQ_JEITA_COOL 21
> > +#define RT9471_IRQ_JEITA_WARM 22
> > +#define RT9471_IRQ_JEITA_HOT 23
> > +#define RT9471_IRQ_OTG_FAULT 24
> > +#define RT9471_IRQ_OTG_LBP 25
> > +#define RT9471_IRQ_OTG_CC 26
> > +#define RT9471_IRQ_WDT 29
> > +#define RT9471_IRQ_VAC_OV 30
> > +#define RT9471_IRQ_OTP 31
> > +
> > +#define RT9471_REG_OTGCFG 0x00
> > +#define RT9471_REG_TOP 0x01
> > +#define RT9471_REG_FUNC 0x02
> > +#define RT9471_REG_IBUS 0x03
> > +#define RT9471_REG_VBUS 0x04
> > +#define RT9471_REG_PRECHG 0x05
> > +#define RT9471_REG_VCHG 0x07
> > +#define RT9471_REG_ICHG 0x08
> > +#define RT9471_REG_CHGTMR 0x09
> > +#define RT9471_REG_EOC 0x0A
> > +#define RT9471_REG_INFO 0x0B
> > +#define RT9471_REG_JEITA 0x0C
> > +#define RT9471_REG_PUMP_EXP 0x0D
> > +#define RT9471_REG_DPDMDET 0x0E
> > +#define RT9471_REG_ICSTAT 0x0F
> > +#define RT9471_REG_STAT0 0x10
> > +#define RT9471_REG_STAT1 0x11
> > +#define RT9471_REG_STAT2 0x12
> > +#define RT9471_REG_IRQ0 0x20
> > +#define RT9471_REG_MASK0 0x30
> > +
> > +#define RT9471_OTGCV_MASK GENMASK(7, 6)
> > +#define RT9471_OTGCC_MASK BIT(0)
> > +#define RT9471_OTGEN_MASK BIT(1)
> > +#define RT9471_CHGFAULT_MASK GENMASK(4, 1)
> > +
> > +/* Device ID */
> > +#define RT9470_DEVID 0x09
> > +#define RT9470D_DEVID 0x0A
> > +#define RT9471_DEVID 0x0D
> > +#define RT9471D_DEVID 0x0E
> > +
> > +#define RT9471_NUM_IRQ_REGS 4
> > +#define RT9471_OTGCV_MINUV 4850000
> > +#define RT9471_OTGCV_STEPUV 150000
> > +#define RT9471_NUM_VOTG 4
> > +#define RT9471_VCHG_MAXUV 4700000
> > +#define RT9471_ICHG_MAXUA 3150000
> > +
> > +#endif /* __RT9471_CHARGER_H */
>
> Please merge this into rt9471.c
>
> > --
> > 2.7.4
> >
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