linux-kernel - Re: [PATCH v4 08/12] mfd: da9063: Add custom regmap for DA9063L

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Date:   Wed, 6 Jun 2018 11:47:19 +0200
From:   Marek Vasut <marek.vasut@...il.com>
To:     Lee Jones <lee.jones@...aro.org>
Cc:     linux-kernel@...r.kernel.org,
        Marek Vasut <marek.vasut+renesas@...il.com>,
        Geert Uytterhoeven <geert+renesas@...der.be>,
        Mark Brown <broonie@...nel.org>,
        Steve Twiss <stwiss.opensource@...semi.com>,
        Wolfram Sang <wsa+renesas@...g-engineering.com>,
        linux-renesas-soc@...r.kernel.org
Subject: Re: [PATCH v4 08/12] mfd: da9063: Add custom regmap for DA9063L

On 06/06/2018 08:39 AM, Lee Jones wrote:
> On Wed, 06 Jun 2018, Marek Vasut wrote:
> 
>> The DA9063L does not have an RTC. Add custom regmap for DA9063L to
>> prevent access into that register block.
>>
>> Signed-off-by: Marek Vasut <marek.vasut+renesas@...il.com>
>> Cc: Geert Uytterhoeven <geert+renesas@...der.be>
>> Cc: Lee Jones <lee.jones@...aro.org>
>> Cc: Mark Brown <broonie@...nel.org>
>> Cc: Steve Twiss <stwiss.opensource@...semi.com>
>> Cc: Wolfram Sang <wsa+renesas@...g-engineering.com>
>> Cc: linux-renesas-soc@...r.kernel.org
>> ---
>> V3: New patch
>> V4: Drop mention of buggy datasheet in the commit message
>> ---
>>  drivers/mfd/da9063-i2c.c | 91 ++++++++++++++++++++++++++++++++++++++++++++++++
>>  1 file changed, 91 insertions(+)
>>
>> diff --git a/drivers/mfd/da9063-i2c.c b/drivers/mfd/da9063-i2c.c
>> index 048ce55ebc5b..f0d92a37df6b 100644
>> --- a/drivers/mfd/da9063-i2c.c
>> +++ b/drivers/mfd/da9063-i2c.c
>> @@ -208,6 +208,93 @@ static const struct regmap_access_table da9063_bb_volatile_table = {
>>  	.n_yes_ranges = ARRAY_SIZE(da9063_bb_volatile_ranges),
>>  };
>>  
>> +static const struct regmap_range da9063l_bb_readable_ranges[] = {
>> +	{
>> +		.range_min = DA9063_REG_PAGE_CON,
>> +		.range_max = DA9063_REG_MON_A10_RES,
>> +	}, {
>> +		.range_min = DA9063_REG_SEQ,
>> +		.range_max = DA9063_REG_ID_32_31,
>> +	}, {
>> +		.range_min = DA9063_REG_SEQ_A,
>> +		.range_max = DA9063_REG_AUTO3_LOW,
>> +	}, {
>> +		.range_min = DA9063_REG_T_OFFSET,
>> +		.range_max = DA9063_BB_REG_GP_ID_19,
>> +	}, {
>> +		.range_min = DA9063_REG_CHIP_ID,
>> +		.range_max = DA9063_REG_CHIP_VARIANT,
>> +	},
>> +};
>> +
>> +static const struct regmap_range da9063l_bb_writeable_ranges[] = {
>> +	{
>> +		.range_min = DA9063_REG_PAGE_CON,
>> +		.range_max = DA9063_REG_PAGE_CON,
>> +	}, {
>> +		.range_min = DA9063_REG_FAULT_LOG,
>> +		.range_max = DA9063_REG_VSYS_MON,
>> +	}, {
>> +		.range_min = DA9063_REG_SEQ,
>> +		.range_max = DA9063_REG_ID_32_31,
>> +	}, {
>> +		.range_min = DA9063_REG_SEQ_A,
>> +		.range_max = DA9063_REG_AUTO3_LOW,
>> +	}, {
>> +		.range_min = DA9063_REG_CONFIG_I,
>> +		.range_max = DA9063_BB_REG_MON_REG_4,
>> +	}, {
>> +		.range_min = DA9063_BB_REG_GP_ID_0,
>> +		.range_max = DA9063_BB_REG_GP_ID_19,
>> +	},
>> +};
>> +
>> +static const struct regmap_range da9063l_bb_volatile_ranges[] = {
>> +	{
>> +		.range_min = DA9063_REG_PAGE_CON,
>> +		.range_max = DA9063_REG_EVENT_D,
>> +	}, {
>> +		.range_min = DA9063_REG_CONTROL_A,
>> +		.range_max = DA9063_REG_CONTROL_B,
>> +	}, {
>> +		.range_min = DA9063_REG_CONTROL_E,
>> +		.range_max = DA9063_REG_CONTROL_F,
>> +	}, {
>> +		.range_min = DA9063_REG_BCORE2_CONT,
>> +		.range_max = DA9063_REG_LDO11_CONT,
>> +	}, {
>> +		.range_min = DA9063_REG_DVC_1,
>> +		.range_max = DA9063_REG_ADC_MAN,
>> +	}, {
>> +		.range_min = DA9063_REG_ADC_RES_L,
>> +		.range_max = DA9063_REG_MON_A10_RES,
>> +	}, {
>> +		.range_min = DA9063_REG_SEQ,
>> +		.range_max = DA9063_REG_SEQ,
>> +	}, {
>> +		.range_min = DA9063_REG_EN_32K,
>> +		.range_max = DA9063_REG_EN_32K,
>> +	}, {
>> +		.range_min = DA9063_BB_REG_MON_REG_5,
>> +		.range_max = DA9063_BB_REG_MON_REG_6,
>> +	},
>> +};
> 
> Not sure why the regmap_reg_range() MACRO is lower case, but still,
> please make use of it to save a few lines.

Ha, OK

> Once changed, please add my:
> 
> For my own reference:
>   Acked-for-MFD-by: Lee Jones <lee.jones@...aro.org>
> 


-- 
Best regards,
Marek Vasut