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Date:	Tue, 7 Oct 2014 10:12:13 +0100
From:	Lee Jones <lee.jones@...aro.org>
To:	Krzysztof Kozlowski <k.kozlowski@...sung.com>
Cc:	Sebastian Reichel <sre@...nel.org>,
	Dmitry Eremin-Solenikov <dbaryshkov@...il.com>,
	David Woodhouse <dwmw2@...radead.org>,
	Samuel Ortiz <sameo@...ux.intel.com>,
	linux-kernel@...r.kernel.org, linux-pm@...r.kernel.org,
	Rob Herring <robh+dt@...nel.org>,
	Pawel Moll <pawel.moll@....com>,
	Mark Rutland <mark.rutland@....com>,
	Ian Campbell <ijc+devicetree@...lion.org.uk>,
	Kumar Gala <galak@...eaurora.org>, devicetree@...r.kernel.org,
	linux-api@...r.kernel.org, Ben Dooks <ben-linux@...ff.org>,
	Kukjin Kim <kgene.kim@...sung.com>,
	Russell King <linux@....linux.org.uk>,
	Javier Martinez Canillas <javier.martinez@...labora.co.uk>,
	linux-arm-kernel@...ts.infradead.org,
	linux-samsung-soc@...r.kernel.org,
	Kyungmin Park <kyungmin.park@...sung.com>,
	Marek Szyprowski <m.szyprowski@...sung.com>,
	Bartlomiej Zolnierkiewicz <b.zolnierkie@...sung.com>,
	Tomasz Figa <tomasz.figa@...il.com>
Subject: Re: [PATCH 1/7] mfd: max77693: Add defines for MAX77693 charger
 driver

On Thu, 02 Oct 2014, Krzysztof Kozlowski wrote:

> Prepare for adding support for Maxim 77693 charger by adding necessary
> new defines and structure for device tree parsed data.
> 
> Signed-off-by: Krzysztof Kozlowski <k.kozlowski@...sung.com>
> ---
>  include/linux/mfd/max77693-private.h | 108 +++++++++++++++++++++++++++++++++++
>  include/linux/mfd/max77693.h         |   8 +++
>  2 files changed, 116 insertions(+)

Acked-by: Lee Jones <lee.jones@...aro.org>

> diff --git a/include/linux/mfd/max77693-private.h b/include/linux/mfd/max77693-private.h
> index fc17d56581b2..e1b2b61285b9 100644
> --- a/include/linux/mfd/max77693-private.h
> +++ b/include/linux/mfd/max77693-private.h
> @@ -144,10 +144,118 @@ enum max77693_pmic_reg {
>  #define FLASH_INT_FLED1_SHORT	BIT(3)
>  #define FLASH_INT_OVER_CURRENT	BIT(4)
>  
> +/* Fast charge timer in in hours */
> +#define DEFAULT_FAST_CHARGE_TIMER		4
> +/* microamps */
> +#define DEFAULT_TOP_OFF_THRESHOLD_CURRENT	150000
> +/* minutes */
> +#define DEFAULT_TOP_OFF_TIMER			30
> +/* microvolts */
> +#define DEFAULT_CONSTANT_VOLT			4200000
> +/* microvolts */
> +#define DEFAULT_MIN_SYSTEM_VOLT			3600000
> +/* celsius */
> +#define DEFAULT_THERMAL_REGULATION_TEMP		100
> +/* microamps */
> +#define DEFAULT_BATTERY_OVERCURRENT		3500000
> +/* microvolts */
> +#define DEFAULT_CHARGER_INPUT_THRESHOLD_VOLT	4300000
> +
> +/* MAX77693_CHG_REG_CHG_INT_OK register */
> +#define CHG_INT_OK_BYP_SHIFT		0
> +#define CHG_INT_OK_BAT_SHIFT		3
> +#define CHG_INT_OK_CHG_SHIFT		4
> +#define CHG_INT_OK_CHGIN_SHIFT		6
> +#define CHG_INT_OK_DETBAT_SHIFT		7
> +#define CHG_INT_OK_BYP_MASK		BIT(CHG_INT_OK_BYP_SHIFT)
> +#define CHG_INT_OK_BAT_MASK		BIT(CHG_INT_OK_BAT_SHIFT)
> +#define CHG_INT_OK_CHG_MASK		BIT(CHG_INT_OK_CHG_SHIFT)
> +#define CHG_INT_OK_CHGIN_MASK		BIT(CHG_INT_OK_CHGIN_SHIFT)
> +#define CHG_INT_OK_DETBAT_MASK		BIT(CHG_INT_OK_DETBAT_SHIFT)
> +
> +/* MAX77693_CHG_REG_CHG_DETAILS_00 register */
> +#define CHG_DETAILS_00_CHGIN_SHIFT	5
> +#define CHG_DETAILS_00_CHGIN_MASK	(0x3 << CHG_DETAILS_00_CHGIN_SHIFT)
> +
> +/* MAX77693_CHG_REG_CHG_DETAILS_01 register */
> +#define CHG_DETAILS_01_CHG_SHIFT	0
> +#define CHG_DETAILS_01_BAT_SHIFT	4
> +#define CHG_DETAILS_01_TREG_SHIFT	7
> +#define CHG_DETAILS_01_CHG_MASK		(0xf << CHG_DETAILS_01_CHG_SHIFT)
> +#define CHG_DETAILS_01_BAT_MASK		(0x7 << CHG_DETAILS_01_BAT_SHIFT)
> +#define CHG_DETAILS_01_TREG_MASK	BIT(7)
> +
> +/* MAX77693_CHG_REG_CHG_DETAILS_01/CHG field */
> +enum max77693_charger_charging_state {
> +	MAX77693_CHARGING_PREQUALIFICATION	= 0x0,
> +	MAX77693_CHARGING_FAST_CONST_CURRENT,
> +	MAX77693_CHARGING_FAST_CONST_VOLTAGE,
> +	MAX77693_CHARGING_TOP_OFF,
> +	MAX77693_CHARGING_DONE,
> +	MAX77693_CHARGING_HIGH_TEMP,
> +	MAX77693_CHARGING_TIMER_EXPIRED,
> +	MAX77693_CHARGING_THERMISTOR_SUSPEND,
> +	MAX77693_CHARGING_OFF,
> +	MAX77693_CHARGING_RESERVED,
> +	MAX77693_CHARGING_OVER_TEMP,
> +	MAX77693_CHARGING_WATCHDOG_EXPIRED,
> +};
> +
> +/* MAX77693_CHG_REG_CHG_DETAILS_01/BAT field */
> +enum max77693_charger_battery_state {
> +	MAX77693_BATTERY_NOBAT			= 0x0,
> +	/* Dead-battery or low-battery prequalification */
> +	MAX77693_BATTERY_PREQUALIFICATION,
> +	MAX77693_BATTERY_TIMER_EXPIRED,
> +	MAX77693_BATTERY_GOOD,
> +	MAX77693_BATTERY_LOWVOLTAGE,
> +	MAX77693_BATTERY_OVERVOLTAGE,
> +	MAX77693_BATTERY_OVERCURRENT,
> +	MAX77693_BATTERY_RESERVED,
> +};
> +
> +/* MAX77693_CHG_REG_CHG_DETAILS_02 register */
> +#define CHG_DETAILS_02_BYP_SHIFT	0
> +#define CHG_DETAILS_02_BYP_MASK		(0xf << CHG_DETAILS_02_BYP_SHIFT)
> +
>  /* MAX77693 CHG_CNFG_00 register */
>  #define CHG_CNFG_00_CHG_MASK		0x1
>  #define CHG_CNFG_00_BUCK_MASK		0x4
>  
> +/* MAX77693_CHG_REG_CHG_CNFG_01 register */
> +#define CHG_CNFG_01_FCHGTIME_SHIFT	0
> +#define CHG_CNFG_01_CHGRSTRT_SHIFT	4
> +#define CHG_CNFG_01_PQEN_SHIFT		7
> +#define CHG_CNFG_01_FCHGTIME_MASK	(0x7 << CHG_CNFG_01_FCHGTIME_SHIFT)
> +#define CHG_CNFG_01_CHGRSTRT_MASK	(0x3 << CHG_CNFG_01_CHGRSTRT_SHIFT)
> +#define CHG_CNFG_01_PQEN_MAKS		BIT(CHG_CNFG_01_PQEN_SHIFT)
> +
> +/* MAX77693_CHG_REG_CHG_CNFG_03 register */
> +#define CHG_CNFG_03_TOITH_SHIFT		0
> +#define CHG_CNFG_03_TOTIME_SHIFT	3
> +#define CHG_CNFG_03_TOITH_MASK		(0x7 << CHG_CNFG_03_TOITH_SHIFT)
> +#define CHG_CNFG_03_TOTIME_MASK		(0x7 << CHG_CNFG_03_TOTIME_SHIFT)
> +
> +/* MAX77693_CHG_REG_CHG_CNFG_04 register */
> +#define CHG_CNFG_04_CHGCVPRM_SHIFT	0
> +#define CHG_CNFG_04_MINVSYS_SHIFT	5
> +#define CHG_CNFG_04_CHGCVPRM_MASK	(0x1f << CHG_CNFG_04_CHGCVPRM_SHIFT)
> +#define CHG_CNFG_04_MINVSYS_MASK	(0x7 << CHG_CNFG_04_MINVSYS_SHIFT)
> +
> +/* MAX77693_CHG_REG_CHG_CNFG_06 register */
> +#define CHG_CNFG_06_CHGPROT_SHIFT	2
> +#define CHG_CNFG_06_CHGPROT_MASK	(0x3 << CHG_CNFG_06_CHGPROT_SHIFT)
> +
> +/* MAX77693_CHG_REG_CHG_CNFG_07 register */
> +#define CHG_CNFG_07_REGTEMP_SHIFT	5
> +#define CHG_CNFG_07_REGTEMP_MASK	(0x3 << CHG_CNFG_07_REGTEMP_SHIFT)
> +
> +/* MAX77693_CHG_REG_CHG_CNFG_12 register */
> +#define CHG_CNFG_12_B2SOVRC_SHIFT	0
> +#define CHG_CNFG_12_VCHGINREG_SHIFT	3
> +#define CHG_CNFG_12_B2SOVRC_MASK	(0x7 << CHG_CNFG_12_B2SOVRC_SHIFT)
> +#define CHG_CNFG_12_VCHGINREG_MASK	(0x3 << CHG_CNFG_12_VCHGINREG_SHIFT)
> +
>  /* MAX77693 CHG_CNFG_09 Register */
>  #define CHG_CNFG_09_CHGIN_ILIM_MASK	0x7F
>  
> diff --git a/include/linux/mfd/max77693.h b/include/linux/mfd/max77693.h
> index f0b6585cd874..88ef24b28294 100644
> --- a/include/linux/mfd/max77693.h
> +++ b/include/linux/mfd/max77693.h
> @@ -63,6 +63,14 @@ struct max77693_muic_platform_data {
>  	int path_uart;
>  };
>  
> +struct max77693_charger_platform_data {
> +	u32 constant_volt;
> +	u32 min_system_volt;
> +	u32 thermal_regulation_temp;
> +	u32 batttery_overcurrent;
> +	u32 charge_input_threshold_volt;
> +};
> +
>  /* MAX77693 led flash */
>  
>  /* triggers */

-- 
Lee Jones
Linaro STMicroelectronics Landing Team Lead
Linaro.org │ Open source software for ARM SoCs
Follow Linaro: Facebook | Twitter | Blog
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