Re: [PATCH v3 1/3] mfd: bd71828, bd71815 prepare for power-supply support

[Lee Jones <lee@kernel.org>]

On Thu, 21 Aug 2025, Andreas Kemnade wrote:

> From: Matti Vaittinen <matti.vaittinen@fi.rohmeurope.com>
> 
> Add core support for ROHM BD718(15/28/78) PMIC's charger blocks.
> 
> Signed-off-by: Matti Vaittinen <matti.vaittinen@fi.rohmeurope.com>
> Signed-off-by: Andreas Kemnade <andreas@kemnade.info>
> ---
>  drivers/mfd/rohm-bd71828.c       | 44 ++++++++++++++++++++++------
>  include/linux/mfd/rohm-bd71828.h | 63 ++++++++++++++++++++++++++++++++++++++++
>  2 files changed, 98 insertions(+), 9 deletions(-)

Looks okay.

I'm guessing the Power patch depends on this one?

Would this break anything if taken on its own?

> diff --git a/drivers/mfd/rohm-bd71828.c b/drivers/mfd/rohm-bd71828.c
> index a14b7aa69c3c6..84a64c3b9c9f5 100644
> --- a/drivers/mfd/rohm-bd71828.c
> +++ b/drivers/mfd/rohm-bd71828.c
> @@ -45,8 +45,8 @@ static const struct resource bd71828_rtc_irqs[] = {
>  
>  static const struct resource bd71815_power_irqs[] = {
>  	DEFINE_RES_IRQ_NAMED(BD71815_INT_DCIN_RMV, "bd71815-dcin-rmv"),
> -	DEFINE_RES_IRQ_NAMED(BD71815_INT_CLPS_OUT, "bd71815-clps-out"),
> -	DEFINE_RES_IRQ_NAMED(BD71815_INT_CLPS_IN, "bd71815-clps-in"),
> +	DEFINE_RES_IRQ_NAMED(BD71815_INT_CLPS_OUT, "bd71815-dcin-clps-out"),
> +	DEFINE_RES_IRQ_NAMED(BD71815_INT_CLPS_IN, "bd71815-dcin-clps-in"),
>  	DEFINE_RES_IRQ_NAMED(BD71815_INT_DCIN_OVP_RES, "bd71815-dcin-ovp-res"),
>  	DEFINE_RES_IRQ_NAMED(BD71815_INT_DCIN_OVP_DET, "bd71815-dcin-ovp-det"),
>  	DEFINE_RES_IRQ_NAMED(BD71815_INT_DCIN_MON_RES, "bd71815-dcin-mon-res"),
> @@ -56,7 +56,7 @@ static const struct resource bd71815_power_irqs[] = {
>  	DEFINE_RES_IRQ_NAMED(BD71815_INT_VSYS_LOW_RES, "bd71815-vsys-low-res"),
>  	DEFINE_RES_IRQ_NAMED(BD71815_INT_VSYS_LOW_DET, "bd71815-vsys-low-det"),
>  	DEFINE_RES_IRQ_NAMED(BD71815_INT_VSYS_MON_RES, "bd71815-vsys-mon-res"),
> -	DEFINE_RES_IRQ_NAMED(BD71815_INT_VSYS_MON_RES, "bd71815-vsys-mon-det"),
> +	DEFINE_RES_IRQ_NAMED(BD71815_INT_VSYS_MON_DET, "bd71815-vsys-mon-det"),
>  	DEFINE_RES_IRQ_NAMED(BD71815_INT_CHG_WDG_TEMP, "bd71815-chg-wdg-temp"),
>  	DEFINE_RES_IRQ_NAMED(BD71815_INT_CHG_WDG_TIME, "bd71815-chg-wdg"),
>  	DEFINE_RES_IRQ_NAMED(BD71815_INT_CHG_RECHARGE_RES, "bd71815-rechg-res"),
> @@ -87,10 +87,10 @@ static const struct resource bd71815_power_irqs[] = {
>  	DEFINE_RES_IRQ_NAMED(BD71815_INT_BAT_OVER_CURR_2_DET, "bd71815-bat-oc2-det"),
>  	DEFINE_RES_IRQ_NAMED(BD71815_INT_BAT_OVER_CURR_3_RES, "bd71815-bat-oc3-res"),
>  	DEFINE_RES_IRQ_NAMED(BD71815_INT_BAT_OVER_CURR_3_DET, "bd71815-bat-oc3-det"),
> -	DEFINE_RES_IRQ_NAMED(BD71815_INT_TEMP_BAT_LOW_RES, "bd71815-bat-low-res"),
> -	DEFINE_RES_IRQ_NAMED(BD71815_INT_TEMP_BAT_LOW_DET, "bd71815-bat-low-det"),
> -	DEFINE_RES_IRQ_NAMED(BD71815_INT_TEMP_BAT_HI_RES, "bd71815-bat-hi-res"),
> -	DEFINE_RES_IRQ_NAMED(BD71815_INT_TEMP_BAT_HI_DET, "bd71815-bat-hi-det"),
> +	DEFINE_RES_IRQ_NAMED(BD71815_INT_TEMP_BAT_LOW_RES, "bd71815-temp-bat-low-res"),
> +	DEFINE_RES_IRQ_NAMED(BD71815_INT_TEMP_BAT_LOW_DET, "bd71815-temp-bat-low-det"),
> +	DEFINE_RES_IRQ_NAMED(BD71815_INT_TEMP_BAT_HI_RES, "bd71815-temp-bat-hi-res"),
> +	DEFINE_RES_IRQ_NAMED(BD71815_INT_TEMP_BAT_HI_DET, "bd71815-temp-bat-hi-det"),
>  };
>  
>  static const struct mfd_cell bd71815_mfd_cells[] = {
> @@ -109,7 +109,30 @@ static const struct mfd_cell bd71815_mfd_cells[] = {
>  	},
>  };
>  
> -static const struct mfd_cell bd71828_mfd_cells[] = {
> +static const struct resource bd71828_power_irqs[] = {
> +	DEFINE_RES_IRQ_NAMED(BD71828_INT_CHG_TOPOFF_TO_DONE,
> +			     "bd71828-chg-done"),
> +	DEFINE_RES_IRQ_NAMED(BD71828_INT_DCIN_DET, "bd71828-pwr-dcin-in"),
> +	DEFINE_RES_IRQ_NAMED(BD71828_INT_DCIN_RMV, "bd71828-pwr-dcin-out"),
> +	DEFINE_RES_IRQ_NAMED(BD71828_INT_BAT_LOW_VOLT_RES,
> +			     "bd71828-vbat-normal"),
> +	DEFINE_RES_IRQ_NAMED(BD71828_INT_BAT_LOW_VOLT_DET, "bd71828-vbat-low"),
> +	DEFINE_RES_IRQ_NAMED(BD71828_INT_TEMP_BAT_HI_DET, "bd71828-btemp-hi"),
> +	DEFINE_RES_IRQ_NAMED(BD71828_INT_TEMP_BAT_HI_RES, "bd71828-btemp-cool"),
> +	DEFINE_RES_IRQ_NAMED(BD71828_INT_TEMP_BAT_LOW_DET, "bd71828-btemp-lo"),
> +	DEFINE_RES_IRQ_NAMED(BD71828_INT_TEMP_BAT_LOW_RES,
> +			     "bd71828-btemp-warm"),
> +	DEFINE_RES_IRQ_NAMED(BD71828_INT_TEMP_CHIP_OVER_VF_DET,
> +			     "bd71828-temp-hi"),
> +	DEFINE_RES_IRQ_NAMED(BD71828_INT_TEMP_CHIP_OVER_VF_RES,
> +			     "bd71828-temp-norm"),
> +	DEFINE_RES_IRQ_NAMED(BD71828_INT_TEMP_CHIP_OVER_125_DET,
> +			     "bd71828-temp-125-over"),
> +	DEFINE_RES_IRQ_NAMED(BD71828_INT_TEMP_CHIP_OVER_125_RES,
> +			     "bd71828-temp-125-under"),
> +};
> +
> +static struct mfd_cell bd71828_mfd_cells[] = {
>  	{ .name = "bd71828-pmic", },
>  	{ .name = "bd71828-gpio", },
>  	{ .name = "bd71828-led", .of_compatible = "rohm,bd71828-leds" },
> @@ -118,8 +141,11 @@ static const struct mfd_cell bd71828_mfd_cells[] = {
>  	 * BD70528 clock gate are the register address and mask.
>  	 */
>  	{ .name = "bd71828-clk", },
> -	{ .name = "bd71827-power", },
>  	{
> +		.name = "bd71828-power",
> +		.resources = bd71828_power_irqs,
> +		.num_resources = ARRAY_SIZE(bd71828_power_irqs),
> +	}, {
>  		.name = "bd71828-rtc",
>  		.resources = bd71828_rtc_irqs,
>  		.num_resources = ARRAY_SIZE(bd71828_rtc_irqs),
> diff --git a/include/linux/mfd/rohm-bd71828.h b/include/linux/mfd/rohm-bd71828.h
> index ce786c96404a3..73a71ef691525 100644
> --- a/include/linux/mfd/rohm-bd71828.h
> +++ b/include/linux/mfd/rohm-bd71828.h
> @@ -189,6 +189,69 @@ enum {
>  /* Charger/Battey */
>  #define BD71828_REG_CHG_STATE		0x65
>  #define BD71828_REG_CHG_FULL		0xd2
> +#define BD71828_REG_CHG_EN		0x6F
> +#define BD71828_REG_DCIN_STAT		0x68
> +#define BD71828_MASK_DCIN_DET		0x01
> +#define BD71828_REG_VDCIN_U		0x9c
> +#define BD71828_MASK_CHG_EN		0x01
> +#define BD71828_CHG_MASK_DCIN_U		0x0f
> +#define BD71828_REG_BAT_STAT		0x67
> +#define BD71828_REG_BAT_TEMP		0x6c
> +#define BD71828_MASK_BAT_TEMP		0x07
> +#define BD71828_BAT_TEMP_OPEN		0x07
> +#define BD71828_MASK_BAT_DET		0x20
> +#define BD71828_MASK_BAT_DET_DONE	0x10
> +#define BD71828_REG_CHG_STATE		0x65
> +#define BD71828_REG_VBAT_U		0x8c
> +#define BD71828_MASK_VBAT_U		0x0f
> +#define BD71828_REG_VBAT_REX_AVG_U	0x92
> +
> +#define BD71828_REG_OCV_PWRON_U		0x8A
> +
> +#define BD71828_REG_VBAT_MIN_AVG_U	0x8e
> +#define BD71828_REG_VBAT_MIN_AVG_L	0x8f
> +
> +#define BD71828_REG_CC_CNT3		0xb5
> +#define BD71828_REG_CC_CNT2		0xb6
> +#define BD71828_REG_CC_CNT1		0xb7
> +#define BD71828_REG_CC_CNT0		0xb8
> +#define BD71828_REG_CC_CURCD_AVG_U	0xb2
> +#define BD71828_MASK_CC_CURCD_AVG_U	0x3f
> +#define BD71828_MASK_CC_CUR_DIR		0x80
> +#define BD71828_REG_VM_BTMP_U		0xa1
> +#define BD71828_REG_VM_BTMP_L		0xa2
> +#define BD71828_MASK_VM_BTMP_U		0x0f
> +#define BD71828_REG_COULOMB_CTRL	0xc4
> +#define BD71828_REG_COULOMB_CTRL2	0xd2
> +#define BD71828_MASK_REX_CC_CLR		0x01
> +#define BD71828_MASK_FULL_CC_CLR	0x10
> +#define BD71828_REG_CC_CNT_FULL3	0xbd
> +#define BD71828_REG_CC_CNT_CHG3		0xc1
> +
> +#define BD71828_REG_VBAT_INITIAL1_U	0x86
> +#define BD71828_REG_VBAT_INITIAL1_L	0x87
> +
> +#define BD71828_REG_VBAT_INITIAL2_U	0x88
> +#define BD71828_REG_VBAT_INITIAL2_L	0x89
> +
> +#define BD71828_REG_IBAT_U		0xb0
> +#define BD71828_REG_IBAT_L		0xb1
> +
> +#define BD71828_REG_IBAT_AVG_U		0xb2
> +#define BD71828_REG_IBAT_AVG_L		0xb3
> +
> +#define BD71828_REG_VSYS_AVG_U		0x96
> +#define BD71828_REG_VSYS_AVG_L		0x97
> +#define BD71828_REG_VSYS_MIN_AVG_U	0x98
> +#define BD71828_REG_VSYS_MIN_AVG_L	0x99
> +#define BD71828_REG_CHG_SET1		0x75
> +#define BD71828_REG_ALM_VBAT_LIMIT_U	0xaa
> +#define BD71828_REG_BATCAP_MON_LIMIT_U	0xcc
> +#define BD71828_REG_CONF		0x64
> +
> +#define BD71828_REG_DCIN_CLPS		0x71
> +
> +#define BD71828_REG_MEAS_CLEAR		0xaf
>  
>  /* LEDs */
>  #define BD71828_REG_LED_CTRL		0x4A
> 
> -- 
> 2.39.5
> 

-- 
Lee Jones [李琼斯]