[PATCH v4 2/7] mfd: simple-mfd-i2c: add SpacemiT P1 support

Alex Elder elder at riscstar.com
Fri Jun 27 06:36:39 PDT 2025


On 6/27/25 7:51 AM, Lee Jones wrote:
>> @@ -93,12 +93,30 @@ static const struct simple_mfd_data maxim_mon_max77705 = {
>>   	.mfd_cell_size = ARRAY_SIZE(max77705_sensor_cells),
>>   };
>>   
>> +static const struct regmap_config spacemit_p1_regmap_config = {
>> +	.reg_bits = 8,
>> +	.val_bits = 8,
>> +	.max_register = 0xaa,
>> +};
> Suggest making this more widely useful by adding the 'max_register'
> attribute to 'struct simple_mfd' and conditionally overriding
> regmap_config_8r_8v's value during probe.

So you're suggesting I make a general improvement to
"simple-mfd-i2c.c", because everybody else just uses
the generic fallback regmap config?

(I'm asking because at first I didn't understand your
statement, and the "more widely useful" comment).

I would be happy to do this, and it's not that hard.
Can I do it as a follow-on patch though?  It's adding
scope (again), beyond what I anticipated and honestly
I'm ready to be done with this...

Anyway, if you say "no" I'll send another version of
this series today.

					-Alex


> 
>> +static const struct mfd_cell spacemit_p1_cells[] = {
>> +	{ .name = "spacemit-p1-regulator", },
>> +	{ .name = "spacemit-p1-rtc", },
>> +};
>> +




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