Subject: Re: [PATCH v3] mfd: mt6360: add pmic mt6360 driver

From: Lee Jones <[email-masked]>
Date: Fri, 4 Oct 2019 14:33:24 +0100

Wolfram,

Would you be kind enough to grep for your name below?

On Tue, 24 Sep 2019, Gene Chen wrote:

> From: Gene Chen <[email-masked]>
> 
> Add mfd driver for mt6360 pmic chip include
> Battery Charger/USB_PD/Flash LED/RGB LED/LDO/Buck
> 
> Signed-off-by: Gene Chen <[email-masked]
> ---
>  drivers/mfd/Kconfig                |  12 +
>  drivers/mfd/Makefile               |   1 +
>  drivers/mfd/mt6360-core.c          | 463 +++++++++++++++++++++++++++++++++++++
>  include/linux/mfd/mt6360-private.h | 279 ++++++++++++++++++++++
>  include/linux/mfd/mt6360.h         |  33 +++
>  5 files changed, 788 insertions(+)
>  create mode 100644 drivers/mfd/mt6360-core.c
>  create mode 100644 include/linux/mfd/mt6360-private.h
>  create mode 100644 include/linux/mfd/mt6360.h
> 
> changelogs between v1 & v2
> - include missing header file
> 
> changelogs between v2 & v3
> - add changelogs
> 
> diff --git a/drivers/mfd/Kconfig b/drivers/mfd/Kconfig
> index f129f96..a422c76 100644
> --- a/drivers/mfd/Kconfig
> +++ b/drivers/mfd/Kconfig
> @@ -862,6 +862,18 @@ config MFD_MAX8998
>  	  additional drivers must be enabled in order to use the functionality
>  	  of the device.
>  
> +config MFD_MT6360
> +	tristate "Mediatek MT6360 SubPMIC"
> +	select MFD_CORE
> +	select REGMAP_I2C
> +	select REGMAP_IRQ
> +	depends on I2C
> +	help
> +	  Say Y here to enable MT6360 PMU/PMIC/LDO functional support.
> +	  PMU part include charger, flashlight, rgb led
> +	  PMIC part include 2-channel BUCKs and 2-channel LDOs
> +	  LDO part include 4-channel LDOs

	  PMU part includes Charger, Flashlight, RGB and LED
	  PMIC part includes 2-channel BUCKs and 2-channel LDOs
	  LDO part includes 4-channel LDOs

>  config MFD_MT6397
>  	tristate "MediaTek MT6397 PMIC Support"
>  	select MFD_CORE
> diff --git a/drivers/mfd/Makefile b/drivers/mfd/Makefile
> index f026ada..77a8f0b 100644
> --- a/drivers/mfd/Makefile
> +++ b/drivers/mfd/Makefile
> @@ -241,6 +241,7 @@ obj-$(CONFIG_INTEL_SOC_PMIC)	+= intel-soc-pmic.o
>  obj-$(CONFIG_INTEL_SOC_PMIC_BXTWC)	+= intel_soc_pmic_bxtwc.o
>  obj-$(CONFIG_INTEL_SOC_PMIC_CHTWC)	+= intel_soc_pmic_chtwc.o
>  obj-$(CONFIG_INTEL_SOC_PMIC_CHTDC_TI)	+= intel_soc_pmic_chtdc_ti.o
> +obj-$(CONFIG_MFD_MT6360)	+= mt6360-core.o
>  obj-$(CONFIG_MFD_MT6397)	+= mt6397-core.o
>  
>  obj-$(CONFIG_MFD_ALTERA_A10SR)	+= altera-a10sr.o
> diff --git a/drivers/mfd/mt6360-core.c b/drivers/mfd/mt6360-core.c
> new file mode 100644
> index 0000000..d3580618
> --- /dev/null
> +++ b/drivers/mfd/mt6360-core.c
> @@ -0,0 +1,463 @@
> +// SPDX-License-Identifier: GPL-2.0
> +/*
> + * Copyright (c) 2019 MediaTek Inc.
> + */
> +
> +#include <linux/i2c.h>
> +#include <linux/init.h>
> +#include <linux/kernel.h>
> +#include <linux/mfd/core.h>
> +#include <linux/module.h>
> +#include <linux/of_irq.h>
> +#include <linux/of_platform.h>
> +#include <linux/version.h>
> +
> +#include <linux/mfd/mt6360.h>
> +#include <linux/mfd/mt6360-private.h>
> +
> +/* reg 0 -> 0 ~ 7 */
> +#define MT6360_CHG_TREG_EVT		(4)
> +#define MT6360_CHG_AICR_EVT		(5)
> +#define MT6360_CHG_MIVR_EVT		(6)
> +#define MT6360_PWR_RDY_EVT		(7)
> +/* REG 1 -> 8 ~ 15 */
> +#define MT6360_CHG_BATSYSUV_EVT		(9)
> +#define MT6360_FLED_CHG_VINOVP_EVT	(11)
> +#define MT6360_CHG_VSYSUV_EVT		(12)
> +#define MT6360_CHG_VSYSOV_EVT		(13)
> +#define MT6360_CHG_VBATOV_EVT		(14)
> +#define MT6360_CHG_VBUSOV_EVT		(15)
> +/* REG 2 -> 16 ~ 23 */
> +/* REG 3 -> 24 ~ 31 */
> +#define MT6360_WD_PMU_DET		(25)
> +#define MT6360_WD_PMU_DONE		(26)
> +#define MT6360_CHG_TMRI			(27)
> +#define MT6360_CHG_ADPBADI		(29)
> +#define MT6360_CHG_RVPI			(30)
> +#define MT6360_OTPI			(31)
> +/* REG 4 -> 32 ~ 39 */
> +#define MT6360_CHG_AICCMEASL		(32)
> +#define MT6360_CHGDET_DONEI		(34)
> +#define MT6360_WDTMRI			(35)
> +#define MT6360_SSFINISHI		(36)
> +#define MT6360_CHG_RECHGI		(37)
> +#define MT6360_CHG_TERMI		(38)
> +#define MT6360_CHG_IEOCI		(39)
> +/* REG 5 -> 40 ~ 47 */
> +#define MT6360_PUMPX_DONEI		(40)
> +#define MT6360_BAT_OVP_ADC_EVT		(41)
> +#define MT6360_TYPEC_OTP_EVT		(42)
> +#define MT6360_ADC_WAKEUP_EVT		(43)
> +#define MT6360_ADC_DONEI		(44)
> +#define MT6360_BST_BATUVI		(45)
> +#define MT6360_BST_VBUSOVI		(46)
> +#define MT6360_BST_OLPI			(47)
> +/* REG 6 -> 48 ~ 55 */
> +#define MT6360_ATTACH_I			(48)
> +#define MT6360_DETACH_I			(49)
> +#define MT6360_QC30_STPDONE		(51)
> +#define MT6360_QC_VBUSDET_DONE		(52)
> +#define MT6360_HVDCP_DET		(53)
> +#define MT6360_CHGDETI			(54)
> +#define MT6360_DCDTI			(55)
> +/* REG 7 -> 56 ~ 63 */
> +#define MT6360_FOD_DONE_EVT		(56)
> +#define MT6360_FOD_OV_EVT		(57)
> +#define MT6360_CHRDET_UVP_EVT		(58)
> +#define MT6360_CHRDET_OVP_EVT		(59)
> +#define MT6360_CHRDET_EXT_EVT		(60)
> +#define MT6360_FOD_LR_EVT		(61)
> +#define MT6360_FOD_HR_EVT		(62)
> +#define MT6360_FOD_DISCHG_FAIL_EVT	(63)
> +/* REG 8 -> 64 ~ 71 */
> +#define MT6360_USBID_EVT		(64)
> +#define MT6360_APWDTRST_EVT		(65)
> +#define MT6360_EN_EVT			(66)
> +#define MT6360_QONB_RST_EVT		(67)
> +#define MT6360_MRSTB_EVT		(68)
> +#define MT6360_OTP_EVT			(69)
> +#define MT6360_VDDAOV_EVT		(70)
> +#define MT6360_SYSUV_EVT		(71)
> +/* REG 9 -> 72 ~ 79 */
> +#define MT6360_FLED_STRBPIN_EVT		(72)
> +#define MT6360_FLED_TORPIN_EVT		(73)
> +#define MT6360_FLED_TX_EVT		(74)
> +#define MT6360_FLED_LVF_EVT		(75)
> +#define MT6360_FLED2_SHORT_EVT		(78)
> +#define MT6360_FLED1_SHORT_EVT		(79)
> +/* REG 10 -> 80 ~ 87 */
> +#define MT6360_FLED2_STRB_EVT		(80)
> +#define MT6360_FLED1_STRB_EVT		(81)
> +#define MT6360_FLED2_STRB_TO_EVT	(82)
> +#define MT6360_FLED1_STRB_TO_EVT	(83)
> +#define MT6360_FLED2_TOR_EVT		(84)
> +#define MT6360_FLED1_TOR_EVT		(85)
> +/* REG 11 -> 88 ~ 95 */
> +/* REG 12 -> 96 ~ 103 */
> +#define MT6360_BUCK1_PGB_EVT		(96)
> +#define MT6360_BUCK1_OC_EVT		(100)
> +#define MT6360_BUCK1_OV_EVT		(101)
> +#define MT6360_BUCK1_UV_EVT		(102)
> +/* REG 13 -> 104 ~ 111 */
> +#define MT6360_BUCK2_PGB_EVT		(104)
> +#define MT6360_BUCK2_OC_EVT		(108)
> +#define MT6360_BUCK2_OV_EVT		(109)
> +#define MT6360_BUCK2_UV_EVT		(110)
> +/* REG 14 -> 112 ~ 119 */
> +#define MT6360_LDO1_OC_EVT		(113)
> +#define MT6360_LDO2_OC_EVT		(114)
> +#define MT6360_LDO3_OC_EVT		(115)
> +#define MT6360_LDO5_OC_EVT		(117)
> +#define MT6360_LDO6_OC_EVT		(118)
> +#define MT6360_LDO7_OC_EVT		(119)
> +/* REG 15 -> 120 ~ 127 */
> +#define MT6360_LDO1_PGB_EVT		(121)
> +#define MT6360_LDO2_PGB_EVT		(122)
> +#define MT6360_LDO3_PGB_EVT		(123)
> +#define MT6360_LDO5_PGB_EVT		(125)
> +#define MT6360_LDO6_PGB_EVT		(126)
> +#define MT6360_LDO7_PGB_EVT		(127)
> +
> +#define MT6360_REGMAP_IRQ_REG(_irq_evt)		\
> +	REGMAP_IRQ_REG(_irq_evt, (_irq_evt) / 8, BIT((_irq_evt) % 8))
> +
> +#define MT6360_MFD_CELL(_name)					\
> +	{							\
> +		.name = #_name,					\
> +		.of_compatible = "mediatek," #_name,		\
> +		.num_resources = ARRAY_SIZE(_name##_resources),	\
> +		.resources = _name##_resources,			\
> +	}

Please do not roll your own MACROS like this.  If they are helpful for
you, they are likely to be helpful for others.  However, this is your
lucky day, as we've been here before.  Please rebase onto the MFD tree
where you will find some pre-authored macros which aren't too
dissimilar to this one.  Please use one of those instead.

> +static const struct regmap_irq mt6360_pmu_irqs[] =  {
> +	MT6360_REGMAP_IRQ_REG(MT6360_CHG_TREG_EVT),
> +	MT6360_REGMAP_IRQ_REG(MT6360_CHG_AICR_EVT),
> +	MT6360_REGMAP_IRQ_REG(MT6360_CHG_MIVR_EVT),
> +	MT6360_REGMAP_IRQ_REG(MT6360_PWR_RDY_EVT),
> +	MT6360_REGMAP_IRQ_REG(MT6360_CHG_BATSYSUV_EVT),
> +	MT6360_REGMAP_IRQ_REG(MT6360_FLED_CHG_VINOVP_EVT),
> +	MT6360_REGMAP_IRQ_REG(MT6360_CHG_VSYSUV_EVT),
> +	MT6360_REGMAP_IRQ_REG(MT6360_CHG_VSYSOV_EVT),
> +	MT6360_REGMAP_IRQ_REG(MT6360_CHG_VBATOV_EVT),
> +	MT6360_REGMAP_IRQ_REG(MT6360_CHG_VBUSOV_EVT),
> +	MT6360_REGMAP_IRQ_REG(MT6360_WD_PMU_DET),
> +	MT6360_REGMAP_IRQ_REG(MT6360_WD_PMU_DONE),
> +	MT6360_REGMAP_IRQ_REG(MT6360_CHG_TMRI),
> +	MT6360_REGMAP_IRQ_REG(MT6360_CHG_ADPBADI),
> +	MT6360_REGMAP_IRQ_REG(MT6360_CHG_RVPI),
> +	MT6360_REGMAP_IRQ_REG(MT6360_OTPI),
> +	MT6360_REGMAP_IRQ_REG(MT6360_CHG_AICCMEASL),
> +	MT6360_REGMAP_IRQ_REG(MT6360_CHGDET_DONEI),
> +	MT6360_REGMAP_IRQ_REG(MT6360_WDTMRI),
> +	MT6360_REGMAP_IRQ_REG(MT6360_SSFINISHI),
> +	MT6360_REGMAP_IRQ_REG(MT6360_CHG_RECHGI),
> +	MT6360_REGMAP_IRQ_REG(MT6360_CHG_TERMI),
> +	MT6360_REGMAP_IRQ_REG(MT6360_CHG_IEOCI),
> +	MT6360_REGMAP_IRQ_REG(MT6360_PUMPX_DONEI),
> +	MT6360_REGMAP_IRQ_REG(MT6360_CHG_TREG_EVT),
> +	MT6360_REGMAP_IRQ_REG(MT6360_BAT_OVP_ADC_EVT),
> +	MT6360_REGMAP_IRQ_REG(MT6360_TYPEC_OTP_EVT),
> +	MT6360_REGMAP_IRQ_REG(MT6360_ADC_WAKEUP_EVT),
> +	MT6360_REGMAP_IRQ_REG(MT6360_ADC_DONEI),
> +	MT6360_REGMAP_IRQ_REG(MT6360_BST_BATUVI),
> +	MT6360_REGMAP_IRQ_REG(MT6360_BST_VBUSOVI),
> +	MT6360_REGMAP_IRQ_REG(MT6360_BST_OLPI),
> +	MT6360_REGMAP_IRQ_REG(MT6360_ATTACH_I),
> +	MT6360_REGMAP_IRQ_REG(MT6360_DETACH_I),
> +	MT6360_REGMAP_IRQ_REG(MT6360_QC30_STPDONE),
> +	MT6360_REGMAP_IRQ_REG(MT6360_QC_VBUSDET_DONE),
> +	MT6360_REGMAP_IRQ_REG(MT6360_HVDCP_DET),
> +	MT6360_REGMAP_IRQ_REG(MT6360_CHGDETI),
> +	MT6360_REGMAP_IRQ_REG(MT6360_DCDTI),
> +	MT6360_REGMAP_IRQ_REG(MT6360_FOD_DONE_EVT),
> +	MT6360_REGMAP_IRQ_REG(MT6360_FOD_OV_EVT),
> +	MT6360_REGMAP_IRQ_REG(MT6360_CHRDET_UVP_EVT),
> +	MT6360_REGMAP_IRQ_REG(MT6360_CHRDET_OVP_EVT),
> +	MT6360_REGMAP_IRQ_REG(MT6360_CHRDET_EXT_EVT),
> +	MT6360_REGMAP_IRQ_REG(MT6360_FOD_LR_EVT),
> +	MT6360_REGMAP_IRQ_REG(MT6360_FOD_HR_EVT),
> +	MT6360_REGMAP_IRQ_REG(MT6360_FOD_DISCHG_FAIL_EVT),
> +	MT6360_REGMAP_IRQ_REG(MT6360_USBID_EVT),
> +	MT6360_REGMAP_IRQ_REG(MT6360_APWDTRST_EVT),
> +	MT6360_REGMAP_IRQ_REG(MT6360_EN_EVT),
> +	MT6360_REGMAP_IRQ_REG(MT6360_QONB_RST_EVT),
> +	MT6360_REGMAP_IRQ_REG(MT6360_MRSTB_EVT),
> +	MT6360_REGMAP_IRQ_REG(MT6360_OTP_EVT),
> +	MT6360_REGMAP_IRQ_REG(MT6360_VDDAOV_EVT),
> +	MT6360_REGMAP_IRQ_REG(MT6360_SYSUV_EVT),
> +	MT6360_REGMAP_IRQ_REG(MT6360_FLED_STRBPIN_EVT),
> +	MT6360_REGMAP_IRQ_REG(MT6360_FLED_TORPIN_EVT),
> +	MT6360_REGMAP_IRQ_REG(MT6360_FLED_TX_EVT),
> +	MT6360_REGMAP_IRQ_REG(MT6360_FLED_LVF_EVT),
> +	MT6360_REGMAP_IRQ_REG(MT6360_FLED2_SHORT_EVT),
> +	MT6360_REGMAP_IRQ_REG(MT6360_FLED1_SHORT_EVT),
> +	MT6360_REGMAP_IRQ_REG(MT6360_FLED2_STRB_EVT),
> +	MT6360_REGMAP_IRQ_REG(MT6360_FLED1_STRB_EVT),
> +	MT6360_REGMAP_IRQ_REG(MT6360_FLED2_STRB_TO_EVT),
> +	MT6360_REGMAP_IRQ_REG(MT6360_FLED1_STRB_TO_EVT),
> +	MT6360_REGMAP_IRQ_REG(MT6360_FLED2_TOR_EVT),
> +	MT6360_REGMAP_IRQ_REG(MT6360_FLED1_TOR_EVT),
> +	MT6360_REGMAP_IRQ_REG(MT6360_BUCK1_PGB_EVT),
> +	MT6360_REGMAP_IRQ_REG(MT6360_BUCK1_OC_EVT),
> +	MT6360_REGMAP_IRQ_REG(MT6360_BUCK1_OV_EVT),
> +	MT6360_REGMAP_IRQ_REG(MT6360_BUCK1_UV_EVT),
> +	MT6360_REGMAP_IRQ_REG(MT6360_BUCK2_PGB_EVT),
> +	MT6360_REGMAP_IRQ_REG(MT6360_BUCK2_OC_EVT),
> +	MT6360_REGMAP_IRQ_REG(MT6360_BUCK2_OV_EVT),
> +	MT6360_REGMAP_IRQ_REG(MT6360_BUCK2_UV_EVT),
> +	MT6360_REGMAP_IRQ_REG(MT6360_LDO1_OC_EVT),
> +	MT6360_REGMAP_IRQ_REG(MT6360_LDO2_OC_EVT),
> +	MT6360_REGMAP_IRQ_REG(MT6360_LDO3_OC_EVT),
> +	MT6360_REGMAP_IRQ_REG(MT6360_LDO5_OC_EVT),
> +	MT6360_REGMAP_IRQ_REG(MT6360_LDO6_OC_EVT),
> +	MT6360_REGMAP_IRQ_REG(MT6360_LDO7_OC_EVT),
> +	MT6360_REGMAP_IRQ_REG(MT6360_LDO1_PGB_EVT),
> +	MT6360_REGMAP_IRQ_REG(MT6360_LDO2_PGB_EVT),
> +	MT6360_REGMAP_IRQ_REG(MT6360_LDO3_PGB_EVT),
> +	MT6360_REGMAP_IRQ_REG(MT6360_LDO5_PGB_EVT),
> +	MT6360_REGMAP_IRQ_REG(MT6360_LDO6_PGB_EVT),
> +	MT6360_REGMAP_IRQ_REG(MT6360_LDO7_PGB_EVT),
> +};
> +
> +static int mt6360_pmu_handle_post_irq(void *irq_drv_data)
> +{
> +	struct mt6360_pmu_info *mpi = irq_drv_data;
> +
> +	return regmap_update_bits(mpi->regmap,
> +		MT6360_PMU_IRQ_SET, MT6360_IRQ_RETRIG, MT6360_IRQ_RETRIG);
> +}
> +
> +static const struct regmap_irq_chip mt6360_pmu_irq_chip = {
> +	.irqs = mt6360_pmu_irqs,
> +	.num_irqs = ARRAY_SIZE(mt6360_pmu_irqs),
> +	.num_regs = MT6360_PMU_IRQ_REGNUM,
> +	.mask_base = MT6360_PMU_CHG_MASK1,
> +	.status_base = MT6360_PMU_CHG_IRQ1,
> +	.ack_base = MT6360_PMU_CHG_IRQ1,
> +	.init_ack_masked = true,
> +	.use_ack = true,
> +	.handle_post_irq = mt6360_pmu_handle_post_irq,
> +};
> +
> +static const struct regmap_config mt6360_pmu_regmap_config = {
> +	.reg_bits = 8,
> +	.val_bits = 8,
> +	.max_register = MT6360_PMU_MAXREG,
> +};
> +
> +static const struct resource mt6360_adc_resources[] = {
> +	DEFINE_RES_IRQ_NAMED(MT6360_ADC_DONEI, "adc_donei"),
> +};
> +
> +static const struct resource mt6360_chg_resources[] = {
> +	DEFINE_RES_IRQ_NAMED(MT6360_CHG_TREG_EVT, "chg_treg_evt"),
> +	DEFINE_RES_IRQ_NAMED(MT6360_PWR_RDY_EVT, "pwr_rdy_evt"),
> +	DEFINE_RES_IRQ_NAMED(MT6360_CHG_BATSYSUV_EVT, "chg_batsysuv_evt"),
> +	DEFINE_RES_IRQ_NAMED(MT6360_CHG_VSYSUV_EVT, "chg_vsysuv_evt"),
> +	DEFINE_RES_IRQ_NAMED(MT6360_CHG_VSYSOV_EVT, "chg_vsysov_evt"),
> +	DEFINE_RES_IRQ_NAMED(MT6360_CHG_VBATOV_EVT, "chg_vbatov_evt"),
> +	DEFINE_RES_IRQ_NAMED(MT6360_CHG_VBUSOV_EVT, "chg_vbusov_evt"),
> +	DEFINE_RES_IRQ_NAMED(MT6360_CHG_AICCMEASL, "chg_aiccmeasl"),
> +	DEFINE_RES_IRQ_NAMED(MT6360_WDTMRI, "wdtmri"),
> +	DEFINE_RES_IRQ_NAMED(MT6360_CHG_RECHGI, "chg_rechgi"),
> +	DEFINE_RES_IRQ_NAMED(MT6360_CHG_TERMI, "chg_termi"),
> +	DEFINE_RES_IRQ_NAMED(MT6360_CHG_IEOCI, "chg_ieoci"),
> +	DEFINE_RES_IRQ_NAMED(MT6360_PUMPX_DONEI, "pumpx_donei"),
> +	DEFINE_RES_IRQ_NAMED(MT6360_ATTACH_I, "attach_i"),
> +	DEFINE_RES_IRQ_NAMED(MT6360_CHRDET_EXT_EVT, "chrdet_ext_evt"),
> +};
> +
> +static const struct resource mt6360_led_resources[] = {
> +	DEFINE_RES_IRQ_NAMED(MT6360_FLED_CHG_VINOVP_EVT, "fled_chg_vinovp_evt"),
> +	DEFINE_RES_IRQ_NAMED(MT6360_FLED_LVF_EVT, "fled_lvf_evt"),
> +	DEFINE_RES_IRQ_NAMED(MT6360_FLED2_SHORT_EVT, "fled2_short_evt"),
> +	DEFINE_RES_IRQ_NAMED(MT6360_FLED1_SHORT_EVT, "fled1_short_evt"),
> +	DEFINE_RES_IRQ_NAMED(MT6360_FLED2_STRB_TO_EVT, "fled2_strb_to_evt"),
> +	DEFINE_RES_IRQ_NAMED(MT6360_FLED1_STRB_TO_EVT, "fled1_strb_to_evt"),
> +};
> +
> +static const struct resource mt6360_pmic_resources[] = {
> +	DEFINE_RES_IRQ_NAMED(MT6360_BUCK1_PGB_EVT, "buck1_pgb_evt"),
> +	DEFINE_RES_IRQ_NAMED(MT6360_BUCK1_OC_EVT, "buck1_oc_evt"),
> +	DEFINE_RES_IRQ_NAMED(MT6360_BUCK1_OV_EVT, "buck1_ov_evt"),
> +	DEFINE_RES_IRQ_NAMED(MT6360_BUCK1_UV_EVT, "buck1_uv_evt"),
> +	DEFINE_RES_IRQ_NAMED(MT6360_BUCK2_PGB_EVT, "buck2_pgb_evt"),
> +	DEFINE_RES_IRQ_NAMED(MT6360_BUCK2_OC_EVT, "buck2_oc_evt"),
> +	DEFINE_RES_IRQ_NAMED(MT6360_BUCK2_OV_EVT, "buck2_ov_evt"),
> +	DEFINE_RES_IRQ_NAMED(MT6360_BUCK2_UV_EVT, "buck2_uv_evt"),
> +	DEFINE_RES_IRQ_NAMED(MT6360_LDO6_OC_EVT, "ldo6_oc_evt"),
> +	DEFINE_RES_IRQ_NAMED(MT6360_LDO7_OC_EVT, "ldo7_oc_evt"),
> +	DEFINE_RES_IRQ_NAMED(MT6360_LDO6_PGB_EVT, "ldo6_pgb_evt"),
> +	DEFINE_RES_IRQ_NAMED(MT6360_LDO7_PGB_EVT, "ldo7_pgb_evt"),
> +};
> +
> +static const struct resource mt6360_ldo_resources[] = {
> +	DEFINE_RES_IRQ_NAMED(MT6360_LDO1_OC_EVT, "ldo1_oc_evt"),
> +	DEFINE_RES_IRQ_NAMED(MT6360_LDO2_OC_EVT, "ldo2_oc_evt"),
> +	DEFINE_RES_IRQ_NAMED(MT6360_LDO3_OC_EVT, "ldo3_oc_evt"),
> +	DEFINE_RES_IRQ_NAMED(MT6360_LDO5_OC_EVT, "ldo5_oc_evt"),
> +	DEFINE_RES_IRQ_NAMED(MT6360_LDO1_PGB_EVT, "ldo1_pgb_evt"),
> +	DEFINE_RES_IRQ_NAMED(MT6360_LDO2_PGB_EVT, "ldo2_pgb_evt"),
> +	DEFINE_RES_IRQ_NAMED(MT6360_LDO3_PGB_EVT, "ldo3_pgb_evt"),
> +	DEFINE_RES_IRQ_NAMED(MT6360_LDO5_PGB_EVT, "ldo5_pgb_evt"),
> +};
> +
> +static const struct mfd_cell mt6360_devs[] = {
> +	MT6360_MFD_CELL(mt6360_adc),
> +	MT6360_MFD_CELL(mt6360_chg),
> +	MT6360_MFD_CELL(mt6360_led),
> +	MT6360_MFD_CELL(mt6360_pmic),
> +	MT6360_MFD_CELL(mt6360_ldo),
> +	/* tcpc dev */
> +	{
> +		.name = "mt6360_tcpc",
> +		.of_compatible = "mediatek,mt6360_tcpc",

There is a macro for this too (OF_MFD_CELL())

> +	},
> +};
> +
> +static const unsigned short mt6360_slave_addr[MT6360_SLAVE_MAX] = {
> +	MT6360_PMU_SLAVEID,
> +	MT6360_PMIC_SLAVEID,
> +	MT6360_LDO_SLAVEID,
> +	MT6360_TCPC_SLAVEID,
> +};
> +
> +static int mt6360_pmu_probe(struct i2c_client *client,
> +			    const struct i2c_device_id *id)

If you use .probe_new (see below) you can omit the 'id' param.

> +{
> +	struct mt6360_pmu_info *mpi;

We normally call this ddata.

> +	unsigned int reg_data = 0;
> +	int i, ret;
> +
> +	mpi = devm_kzalloc(&client->dev, sizeof(*mpi), GFP_KERNEL);
> +	if (!mpi)
> +		return -ENOMEM;

'\n' here.

> +	mpi->dev = &client->dev;
> +	i2c_set_clientdata(client, mpi);
> +
> +	/* regmap regiser */

This comment is spelt incorrectly and doesn't really add anything.

> +	mpi->regmap = devm_regmap_init_i2c(client, &mt6360_pmu_regmap_config);
> +	if (IS_ERR(mpi->regmap)) {
> +		dev_err(&client->dev, "regmap register fail\n");

"Failed to register regmap"

> +		return PTR_ERR(mpi->regmap);
> +	}

'\n' here.

> +	/* chip id check */

Again, the code is pretty obvious.

> +	ret = regmap_read(mpi->regmap, MT6360_PMU_DEV_INFO, &reg_data);
> +	if (ret < 0) {
> +		dev_err(&client->dev, "device not found\n");

"Device not found"

> +		return ret;
> +	}

'\n' here.

> +	if ((reg_data & CHIP_VEN_MASK) != CHIP_VEN_MT6360) {
> +		dev_err(&client->dev, "not mt6360 chip\n");

"Device not supported"

> +		return -ENODEV;
> +	}

'\n' here.

> +	mpi->chip_rev = reg_data & CHIP_REV_MASK;

Do this above the check, then do

  (mpi->chip_rev != CHIP_VEN_MT6360)

... above.

> +	/* irq register */

Please remove all of these comments.

> +	memcpy(&mpi->irq_chip, &mt6360_pmu_irq_chip, sizeof(mpi->irq_chip));

Why do we need to make a copy of it?

> +	mpi->irq_chip.name = dev_name(&client->dev);

We already know the name.  Why do we need to do this dynamically?

> +	mpi->irq_chip.irq_drv_data = mpi;

We already saved ddata.  Why do we need to save it here as well?

> +	ret = devm_regmap_add_irq_chip(&client->dev, mpi->regmap, client->irq,
> +				       IRQF_TRIGGER_FALLING, 0, &mpi->irq_chip,
> +				       &mpi->irq_data);
> +	if (ret < 0) {

Is (ret > 0) valid?

> +		dev_err(&client->dev, "regmap irq chip add fail\n");

"Failed to add Regmap IRQ Chip"

> +		return ret;
> +	}

'\n' here.

> +	/* new i2c slave device */
> +	for (i = 0; i < MT6360_SLAVE_MAX; i++) {
> +		if (mt6360_slave_addr[i] == client->addr) {
> +			mpi->i2c[i] = client;
> +			continue;
> +		}
> +		mpi->i2c[i] = i2c_new_dummy(client->adapter,
> +					    mt6360_slave_addr[i]);
> +		if (!mpi->i2c[i]) {
> +			dev_err(&client->dev, "new i2c dev [%d] fail\n", i);
> +			ret = -ENODEV;
> +			goto out;
> +		}
> +		i2c_set_clientdata(mpi->i2c[i], mpi);
> +	}

This doesn't look right to me.

Wolfram, would you be kind enough to take a look?

'\n' here.

> +	/* mfd cell register */
> +	ret = devm_mfd_add_devices(&client->dev, PLATFORM_DEVID_AUTO,
> +				   mt6360_devs, ARRAY_SIZE(mt6360_devs), NULL,
> +				   0, regmap_irq_get_domain(mpi->irq_data));
> +	if (ret < 0) {
> +		dev_err(&client->dev, "mfd add cells fail\n");
> +		goto out;
> +	}

'\n' here.

> +	dev_info(&client->dev, "Successfully probed\n");

Please remove this line.  It doesn't provide anything.

> +	return 0;
> +out:
> +	while (--i >= 0) {
> +		if (mpi->i2c[i]->addr == client->addr)
> +			continue;
> +		i2c_unregister_device(mpi->i2c[i]);
> +	}

'\n' here.

> +	return ret;
> +}
> +
> +static int mt6360_pmu_remove(struct i2c_client *client)
> +{
> +	struct mt6360_pmu_info *mpi = i2c_get_clientdata(client);
> +	int i;
> +
> +	for (i = 0; i < MT6360_SLAVE_MAX; i++) {
> +		if (mpi->i2c[i]->addr == client->addr)
> +			continue;
> +		i2c_unregister_device(mpi->i2c[i]);
> +	}

'\n' here.

> +	return 0;
> +}
> +
> +static int __maybe_unused mt6360_pmu_suspend(struct device *dev)
> +{
> +	struct i2c_client *i2c = to_i2c_client(dev);
> +
> +	if (device_may_wakeup(dev))
> +		enable_irq_wake(i2c->irq);

'\n' here.

> +	return 0;
> +}
> +
> +static int __maybe_unused mt6360_pmu_resume(struct device *dev)
> +{
> +
> +	struct i2c_client *i2c = to_i2c_client(dev);
> +
> +	if (device_may_wakeup(dev))
> +		disable_irq_wake(i2c->irq);

'\n' here.

> +	return 0;
> +}
> +
> +static SIMPLE_DEV_PM_OPS(mt6360_pmu_pm_ops,
> +			 mt6360_pmu_suspend, mt6360_pmu_resume);
> +
> +static const struct of_device_id __maybe_unused mt6360_pmu_of_id[] = {
> +	{ .compatible = "mediatek,mt6360_pmu", },
> +	{},
> +};
> +MODULE_DEVICE_TABLE(of, mt6360_pmu_of_id);
> +
> +static const struct i2c_device_id mt6360_pmu_id[] = {
> +	{ "mt6360_pmu", 0 },
> +	{},
> +};
> +MODULE_DEVICE_TABLE(i2c, mt6360_pmu_id);

If you use .probe_new (see below, you can remove this table.

> +static struct i2c_driver mt6360_pmu_driver = {
> +	.driver = {
> +		.name = "mt6360_pmu",
> +		.owner = THIS_MODULE,

This is no longer required.

> +		.pm = &mt6360_pmu_pm_ops,
> +		.of_match_table = of_match_ptr(mt6360_pmu_of_id),
> +	},
> +	.probe = mt6360_pmu_probe,

Use .probe_new here.

> +	.remove = mt6360_pmu_remove,
> +	.id_table = mt6360_pmu_id,
> +};
> +module_i2c_driver(mt6360_pmu_driver);
> +
> +MODULE_AUTHOR("CY_Huang <[email-masked]>");
> +MODULE_DESCRIPTION("MT6360 PMU I2C Driver");
> +MODULE_LICENSE("GPL");
> +MODULE_VERSION("1.0.0");
> diff --git a/include/linux/mfd/mt6360-private.h b/include/linux/mfd/mt6360-private.h
> new file mode 100644
> index 0000000..b07b3d9
> --- /dev/null
> +++ b/include/linux/mfd/mt6360-private.h

Why do you need 2 header files?

> @@ -0,0 +1,279 @@
> +/* SPDX-License-Identifier: GPL-2.0 */
> +/*
> + * Copyright (c) 2019 MediaTek Inc.
> + */
> +
> +#ifndef __MT6360_PRIVATE_H__
> +#define __MT6360_PRIVATE_H__

__MFD_MT6360_H__

> +#include <linux/interrupt.h>
> +
> +/* PMU register defininition */
> +#define MT6360_PMU_DEV_INFO			(0x00)
> +#define MT6360_PMU_CORE_CTRL1			(0x01)
> +#define MT6360_PMU_RST1				(0x02)
> +#define MT6360_PMU_CRCEN			(0x03)
> +#define MT6360_PMU_RST_PAS_CODE1		(0x04)
> +#define MT6360_PMU_RST_PAS_CODE2		(0x05)
> +#define MT6360_PMU_CORE_CTRL2			(0x06)
> +#define MT6360_PMU_TM_PAS_CODE1			(0x07)
> +#define MT6360_PMU_TM_PAS_CODE2			(0x08)
> +#define MT6360_PMU_TM_PAS_CODE3			(0x09)
> +#define MT6360_PMU_TM_PAS_CODE4			(0x0A)
> +#define MT6360_PMU_IRQ_IND			(0x0B)
> +#define MT6360_PMU_IRQ_MASK			(0x0C)
> +#define MT6360_PMU_IRQ_SET			(0x0D)
> +#define MT6360_PMU_SHDN_CTRL			(0x0E)
> +#define MT6360_PMU_TM_INF			(0x0F)
> +#define MT6360_PMU_I2C_CTRL			(0x10)
> +#define MT6360_PMU_CHG_CTRL1			(0x11)
> +#define MT6360_PMU_CHG_CTRL2			(0x12)
> +#define MT6360_PMU_CHG_CTRL3			(0x13)
> +#define MT6360_PMU_CHG_CTRL4			(0x14)
> +#define MT6360_PMU_CHG_CTRL5			(0x15)
> +#define MT6360_PMU_CHG_CTRL6			(0x16)
> +#define MT6360_PMU_CHG_CTRL7			(0x17)
> +#define MT6360_PMU_CHG_CTRL8			(0x18)
> +#define MT6360_PMU_CHG_CTRL9			(0x19)
> +#define MT6360_PMU_CHG_CTRL10			(0x1A)
> +#define MT6360_PMU_CHG_CTRL11			(0x1B)
> +#define MT6360_PMU_CHG_CTRL12			(0x1C)
> +#define MT6360_PMU_CHG_CTRL13			(0x1D)
> +#define MT6360_PMU_CHG_CTRL14			(0x1E)
> +#define MT6360_PMU_CHG_CTRL15			(0x1F)
> +#define MT6360_PMU_CHG_CTRL16			(0x20)
> +#define MT6360_PMU_CHG_AICC_RESULT		(0x21)
> +#define MT6360_PMU_DEVICE_TYPE			(0x22)
> +#define MT6360_PMU_QC_CONTROL1			(0x23)
> +#define MT6360_PMU_QC_CONTROL2			(0x24)
> +#define MT6360_PMU_QC30_CONTROL1		(0x25)
> +#define MT6360_PMU_QC30_CONTROL2		(0x26)
> +#define MT6360_PMU_USB_STATUS1			(0x27)
> +#define MT6360_PMU_QC_STATUS1			(0x28)
> +#define MT6360_PMU_QC_STATUS2			(0x29)
> +#define MT6360_PMU_CHG_PUMP			(0x2A)
> +#define MT6360_PMU_CHG_CTRL17			(0x2B)
> +#define MT6360_PMU_CHG_CTRL18			(0x2C)
> +#define MT6360_PMU_CHRDET_CTRL1			(0x2D)
> +#define MT6360_PMU_CHRDET_CTRL2			(0x2E)
> +#define MT6360_PMU_DPDN_CTRL			(0x2F)
> +#define MT6360_PMU_CHG_HIDDEN_CTRL1		(0x30)
> +#define MT6360_PMU_CHG_HIDDEN_CTRL2		(0x31)
> +#define MT6360_PMU_CHG_HIDDEN_CTRL3		(0x32)
> +#define MT6360_PMU_CHG_HIDDEN_CTRL4		(0x33)
> +#define MT6360_PMU_CHG_HIDDEN_CTRL5		(0x34)
> +#define MT6360_PMU_CHG_HIDDEN_CTRL6		(0x35)
> +#define MT6360_PMU_CHG_HIDDEN_CTRL7		(0x36)
> +#define MT6360_PMU_CHG_HIDDEN_CTRL8		(0x37)
> +#define MT6360_PMU_CHG_HIDDEN_CTRL9		(0x38)
> +#define MT6360_PMU_CHG_HIDDEN_CTRL10		(0x39)
> +#define MT6360_PMU_CHG_HIDDEN_CTRL11		(0x3A)
> +#define MT6360_PMU_CHG_HIDDEN_CTRL12		(0x3B)
> +#define MT6360_PMU_CHG_HIDDEN_CTRL13		(0x3C)
> +#define MT6360_PMU_CHG_HIDDEN_CTRL14		(0x3D)
> +#define MT6360_PMU_CHG_HIDDEN_CTRL15		(0x3E)
> +#define MT6360_PMU_CHG_HIDDEN_CTRL16		(0x3F)
> +#define MT6360_PMU_CHG_HIDDEN_CTRL17		(0x40)
> +#define MT6360_PMU_CHG_HIDDEN_CTRL18		(0x41)
> +#define MT6360_PMU_CHG_HIDDEN_CTRL19		(0x42)
> +#define MT6360_PMU_CHG_HIDDEN_CTRL20		(0x43)
> +#define MT6360_PMU_CHG_HIDDEN_CTRL21		(0x44)
> +#define MT6360_PMU_CHG_HIDDEN_CTRL22		(0x45)
> +#define MT6360_PMU_CHG_HIDDEN_CTRL23		(0x46)
> +#define MT6360_PMU_CHG_HIDDEN_CTRL24		(0x47)
> +#define MT6360_PMU_CHG_HIDDEN_CTRL25		(0x48)
> +#define MT6360_PMU_BC12_CTRL			(0x49)
> +#define MT6360_PMU_CHG_STAT			(0x4A)
> +#define MT6360_PMU_RESV1			(0x4B)
> +#define MT6360_PMU_TYPEC_OTP_TH_SEL_CODEH	(0x4E)
> +#define MT6360_PMU_TYPEC_OTP_TH_SEL_CODEL	(0x4F)
> +#define MT6360_PMU_TYPEC_OTP_HYST_TH		(0x50)
> +#define MT6360_PMU_TYPEC_OTP_CTRL		(0x51)
> +#define MT6360_PMU_ADC_BAT_DATA_H		(0x52)
> +#define MT6360_PMU_ADC_BAT_DATA_L		(0x53)
> +#define MT6360_PMU_IMID_BACKBST_ON		(0x54)
> +#define MT6360_PMU_IMID_BACKBST_OFF		(0x55)
> +#define MT6360_PMU_ADC_CONFIG			(0x56)
> +#define MT6360_PMU_ADC_EN2			(0x57)
> +#define MT6360_PMU_ADC_IDLE_T			(0x58)
> +#define MT6360_PMU_ADC_RPT_1			(0x5A)
> +#define MT6360_PMU_ADC_RPT_2			(0x5B)
> +#define MT6360_PMU_ADC_RPT_3			(0x5C)
> +#define MT6360_PMU_ADC_RPT_ORG1			(0x5D)
> +#define MT6360_PMU_ADC_RPT_ORG2			(0x5E)
> +#define MT6360_PMU_BAT_OVP_TH_SEL_CODEH		(0x5F)
> +#define MT6360_PMU_BAT_OVP_TH_SEL_CODEL		(0x60)
> +#define MT6360_PMU_CHG_CTRL19			(0x61)
> +#define MT6360_PMU_VDDASUPPLY			(0x62)
> +#define MT6360_PMU_BC12_MANUAL			(0x63)
> +#define MT6360_PMU_CHGDET_FUNC			(0x64)
> +#define MT6360_PMU_FOD_CTRL			(0x65)
> +#define MT6360_PMU_CHG_CTRL20			(0x66)
> +#define MT6360_PMU_CHG_HIDDEN_CTRL26		(0x67)
> +#define MT6360_PMU_CHG_HIDDEN_CTRL27		(0x68)
> +#define MT6360_PMU_RESV2			(0x69)
> +#define MT6360_PMU_USBID_CTRL1			(0x6D)
> +#define MT6360_PMU_USBID_CTRL2			(0x6E)
> +#define MT6360_PMU_USBID_CTRL3			(0x6F)
> +#define MT6360_PMU_FLED_CFG			(0x70)
> +#define MT6360_PMU_RESV3			(0x71)
> +#define MT6360_PMU_FLED1_CTRL			(0x72)
> +#define MT6360_PMU_FLED_STRB_CTRL		(0x73)
> +#define MT6360_PMU_FLED1_STRB_CTRL2		(0x74)
> +#define MT6360_PMU_FLED1_TOR_CTRL		(0x75)
> +#define MT6360_PMU_FLED2_CTRL			(0x76)
> +#define MT6360_PMU_RESV4			(0x77)
> +#define MT6360_PMU_FLED2_STRB_CTRL2		(0x78)
> +#define MT6360_PMU_FLED2_TOR_CTRL		(0x79)
> +#define MT6360_PMU_FLED_VMIDTRK_CTRL1		(0x7A)
> +#define MT6360_PMU_FLED_VMID_RTM		(0x7B)
> +#define MT6360_PMU_FLED_VMIDTRK_CTRL2		(0x7C)
> +#define MT6360_PMU_FLED_PWSEL			(0x7D)
> +#define MT6360_PMU_FLED_EN			(0x7E)
> +#define MT6360_PMU_FLED_Hidden1			(0x7F)
> +#define MT6360_PMU_RGB_EN			(0x80)
> +#define MT6360_PMU_RGB1_ISNK			(0x81)
> +#define MT6360_PMU_RGB2_ISNK			(0x82)
> +#define MT6360_PMU_RGB3_ISNK			(0x83)
> +#define MT6360_PMU_RGB_ML_ISNK			(0x84)
> +#define MT6360_PMU_RGB1_DIM			(0x85)
> +#define MT6360_PMU_RGB2_DIM			(0x86)
> +#define MT6360_PMU_RGB3_DIM			(0x87)
> +#define MT6360_PMU_RESV5			(0x88)
> +#define MT6360_PMU_RGB12_Freq			(0x89)
> +#define MT6360_PMU_RGB34_Freq			(0x8A)
> +#define MT6360_PMU_RGB1_Tr			(0x8B)
> +#define MT6360_PMU_RGB1_Tf			(0x8C)
> +#define MT6360_PMU_RGB1_TON_TOFF		(0x8D)
> +#define MT6360_PMU_RGB2_Tr			(0x8E)
> +#define MT6360_PMU_RGB2_Tf			(0x8F)
> +#define MT6360_PMU_RGB2_TON_TOFF		(0x90)
> +#define MT6360_PMU_RGB3_Tr			(0x91)
> +#define MT6360_PMU_RGB3_Tf			(0x92)
> +#define MT6360_PMU_RGB3_TON_TOFF		(0x93)
> +#define MT6360_PMU_RGB_Hidden_CTRL1		(0x94)
> +#define MT6360_PMU_RGB_Hidden_CTRL2		(0x95)
> +#define MT6360_PMU_RESV6			(0x97)
> +#define MT6360_PMU_SPARE1			(0x9A)
> +#define MT6360_PMU_SPARE2			(0xA0)
> +#define MT6360_PMU_SPARE3			(0xB0)
> +#define MT6360_PMU_SPARE4			(0xC0)
> +#define MT6360_PMU_CHG_IRQ1			(0xD0)
> +#define MT6360_PMU_CHG_IRQ2			(0xD1)
> +#define MT6360_PMU_CHG_IRQ3			(0xD2)
> +#define MT6360_PMU_CHG_IRQ4			(0xD3)
> +#define MT6360_PMU_CHG_IRQ5			(0xD4)
> +#define MT6360_PMU_CHG_IRQ6			(0xD5)
> +#define MT6360_PMU_QC_IRQ			(0xD6)
> +#define MT6360_PMU_FOD_IRQ			(0xD7)
> +#define MT6360_PMU_BASE_IRQ			(0xD8)
> +#define MT6360_PMU_FLED_IRQ1			(0xD9)
> +#define MT6360_PMU_FLED_IRQ2			(0xDA)
> +#define MT6360_PMU_RGB_IRQ			(0xDB)
> +#define MT6360_PMU_BUCK1_IRQ			(0xDC)
> +#define MT6360_PMU_BUCK2_IRQ			(0xDD)
> +#define MT6360_PMU_LDO_IRQ1			(0xDE)
> +#define MT6360_PMU_LDO_IRQ2			(0xDF)
> +#define MT6360_PMU_CHG_STAT1			(0xE0)
> +#define MT6360_PMU_CHG_STAT2			(0xE1)
> +#define MT6360_PMU_CHG_STAT3			(0xE2)
> +#define MT6360_PMU_CHG_STAT4			(0xE3)
> +#define MT6360_PMU_CHG_STAT5			(0xE4)
> +#define MT6360_PMU_CHG_STAT6			(0xE5)
> +#define MT6360_PMU_QC_STAT			(0xE6)
> +#define MT6360_PMU_FOD_STAT			(0xE7)
> +#define MT6360_PMU_BASE_STAT			(0xE8)
> +#define MT6360_PMU_FLED_STAT1			(0xE9)
> +#define MT6360_PMU_FLED_STAT2			(0xEA)
> +#define MT6360_PMU_RGB_STAT			(0xEB)
> +#define MT6360_PMU_BUCK1_STAT			(0xEC)
> +#define MT6360_PMU_BUCK2_STAT			(0xED)
> +#define MT6360_PMU_LDO_STAT1			(0xEE)
> +#define MT6360_PMU_LDO_STAT2			(0xEF)
> +#define MT6360_PMU_CHG_MASK1			(0xF0)
> +#define MT6360_PMU_CHG_MASK2			(0xF1)
> +#define MT6360_PMU_CHG_MASK3			(0xF2)
> +#define MT6360_PMU_CHG_MASK4			(0xF3)
> +#define MT6360_PMU_CHG_MASK5			(0xF4)
> +#define MT6360_PMU_CHG_MASK6			(0xF5)
> +#define MT6360_PMU_QC_MASK			(0xF6)
> +#define MT6360_PMU_FOD_MASK			(0xF7)
> +#define MT6360_PMU_BASE_MASK			(0xF8)
> +#define MT6360_PMU_FLED_MASK1			(0xF9)
> +#define MT6360_PMU_FLED_MASK2			(0xFA)
> +#define MT6360_PMU_FAULTB_MASK			(0xFB)
> +#define MT6360_PMU_BUCK1_MASK			(0xFC)
> +#define MT6360_PMU_BUCK2_MASK			(0xFD)
> +#define MT6360_PMU_LDO_MASK1			(0xFE)
> +#define MT6360_PMU_LDO_MASK2			(0xFF)
> +#define MT6360_PMU_MAXREG			(MT6360_PMU_LDO_MASK2)
> +
> +
> +/* MT6360_PMU_IRQ_SET */
> +#define MT6360_PMU_IRQ_REGNUM	(MT6360_PMU_LDO_IRQ2 - MT6360_PMU_CHG_IRQ1 + 1)
> +#define MT6360_IRQ_RETRIG	BIT(2)
> +
> +#define CHIP_VEN_MASK				(0xF0)
> +#define CHIP_VEN_MT6360				(0x50)
> +#define CHIP_REV_MASK				(0x0F)
> +
> +/* IRQ definitions */

Remove this please.

> +struct mt6360_pmu_irq_desc {
> +	const char *name;
> +	irq_handler_t irq_handler;
> +};

Where is this used?

> +#define  MT6360_DT_VALPROP(name, type) \
> +			{#name, offsetof(type, name)}

Where is this used?

> +struct mt6360_val_prop {
> +	const char *name;
> +	size_t offset;
> +};
> +
> +static inline void mt6360_dt_parser_helper(struct device_node *np, void *data,
> +					   const struct mt6360_val_prop *props,
> +					   int prop_cnt)
> +{
> +	int i;
> +
> +	for (i = 0; i < prop_cnt; i++) {
> +		if (unlikely(!props[i].name))
> +			continue;
> +		of_property_read_u32(np, props[i].name, data + props[i].offset);
> +	}
> +}

What are you using this for?  Why is the standard API not sufficient?

> +#define MT6360_PDATA_VALPROP(name, type, reg, shift, mask, func, base) \
> +			{offsetof(type, name), reg, shift, mask, func, base}

Where is this used?

> +struct mt6360_pdata_prop {
> +	size_t offset;
> +	u8 reg;
> +	u8 shift;
> +	u8 mask;
> +	u32 (*transform)(u32 val);
> +	u8 base;
> +};
> +
> +static inline int mt6360_pdata_apply_helper(void *context, void *pdata,
> +					   const struct mt6360_pdata_prop *prop,
> +					   int prop_cnt)
> +{
> +	int i, ret;
> +	u32 val;
> +
> +	for (i = 0; i < prop_cnt; i++) {
> +		val = *(u32 *)(pdata + prop[i].offset);
> +		if (prop[i].transform)
> +			val = prop[i].transform(val);
> +		val += prop[i].base;
> +		ret = regmap_update_bits(context,
> +			     prop[i].reg, prop[i].mask, val << prop[i].shift);
> +		if (ret < 0)
> +			return ret;
> +	}
> +	return 0;
> +}

Where is this used?  What does it do?

> +#endif /* __MT6360_PRIVATE_H__ */
> diff --git a/include/linux/mfd/mt6360.h b/include/linux/mfd/mt6360.h
> new file mode 100644
> index 0000000..ba2e80a
> --- /dev/null
> +++ b/include/linux/mfd/mt6360.h
> @@ -0,0 +1,33 @@
> +/* SPDX-License-Identifier: GPL-2.0 */
> +/*
> + * Copyright (c) 2019 MediaTek Inc.
> + */
> +
> +#ifndef __MT6360_H__
> +#define __MT6360_H__
> +
> +#include <linux/regmap.h>
> +
> +enum {
> +	MT6360_SLAVE_PMU = 0,
> +	MT6360_SLAVE_PMIC,
> +	MT6360_SLAVE_LDO,
> +	MT6360_SLAVE_TCPC,
> +	MT6360_SLAVE_MAX,
> +};
> +
> +#define MT6360_PMU_SLAVEID	(0x34)
> +#define MT6360_PMIC_SLAVEID	(0x1A)
> +#define MT6360_LDO_SLAVEID	(0x64)
> +#define MT6360_TCPC_SLAVEID	(0x4E)

What kind of slave ID?  I2C address?

> +struct mt6360_pmu_info {
> +	struct i2c_client *i2c[MT6360_SLAVE_MAX];
> +	struct device *dev;

> +	struct regmap *regmap;
> +	struct regmap_irq_chip_data *irq_data;
> +	struct regmap_irq_chip irq_chip;
> +	unsigned int chip_rev;

Why are you saving these?

Where do you reuse them?

> +};
> +
> +#endif /* __MT6360_H__ */

-- 
Lee Jones [李琼斯]
Linaro Services Technical Lead
Linaro.org │ Open source software for ARM SoCs
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