[M] Change in coreboot[main]: soc/mediatek/mt8196: Add PMIC mt6363 adc driver

[Yidi Lin (Code Review)]

Attention is currently required from: Hung-Te Lin, Jarried Lin, Yu-Ping Wu.

Yidi Lin has posted comments on this change by Jarried Lin. ( https://review.coreboot.org/c/coreboot/+/85128?usp=email )

Change subject: soc/mediatek/mt8196: Add PMIC mt6363 adc driver
......................................................................

Patch Set 4:

(7 comments)

Commit Message:

https://review.coreboot.org/c/coreboot/+/85128/comment/4aba3c8b_a0b3ced2?usp... :
PS4, Line 7: mt6363
MT6363 ADC

https://review.coreboot.org/c/coreboot/+/85128/comment/d647bb77_4b29261c?usp... :
PS4, Line 9: auxadc
AUXADC

https://review.coreboot.org/c/coreboot/+/85128/comment/df0f6124_36435e29?usp... :
PS4, Line 9: add
Add

File src/soc/mediatek/common/include/soc/mt6363_sdmadc.h:

https://review.coreboot.org/c/coreboot/+/85128/comment/42a735e9_d8636881?usp... :
PS4, Line 88: enum auxadc_val_type type);
move to the next line

File src/soc/mediatek/common/mt6363_sdmadc.c:

https://review.coreboot.org/c/coreboot/+/85128/comment/be0b7e6e_eab146b0?usp... :
PS4, Line 61: static struct pmif *pmif_arb = NULL;
            : 
            : static u32 mt6363_auxadc_read_value(u32 reg)
            : {
            : 	u32 data;
            : 
            : 	assert(pmif_arb);
            : 	pmif_arb->read(pmif_arb, SPMI_SLAVE_4, reg, &data);
            : 	return data;
            : }
            : 
            : static void mt6363_auxadc_write_value(u32 reg, u8 reg_val)
            : {
            : 	assert(pmif_arb);
            : 	pmif_arb->write(pmif_arb, SPMI_SLAVE_4, reg, reg_val);
            : }
            : 
            : static u32 mt6363_auxadc_read_value16(u32 reg)
            : {
            : 	u16 rdata = 0;
            : 
            : 	assert(pmif_arb);
            : 	pmif_arb->read16(pmif_arb, SPMI_SLAVE_4, reg, &rdata);
            : 	return rdata;
            : }
move those functions to `common/mt6363.c`.

https://review.coreboot.org/c/coreboot/+/85128/comment/d52d517e_56f9d793?usp... :
PS4, Line 135: 
             : void mt6363_sdmadc_init(void)
             : {
             : 	if (!pmif_arb) {
             : 		pmif_arb = get_pmif_controller(PMIF_SPMI, SPMI_MASTER_1);
             : 		assert(pmif_arb);
             : 	}
             : 
             : 	if (pmif_arb->is_pmif_init_done(pmif_arb))
             : 		die("ERROR - Failed to initialize pmif spi");
             : 
             : 	printk(BIOS_INFO, "[%s]CHIP ID =  0x%x\n", __func__,
             : 			   mt6363_auxadc_read_value(PMIC_SWCID1));
             : }
Remove. We can just call `mt6363_init_pmif_arb`.

File src/soc/mediatek/mt8196/Makefile.mk:

https://review.coreboot.org/c/coreboot/+/85128/comment/333d88ea_b6cd2540?usp... :
PS4, Line 32: romstage-y += ../common/mt6363_sdmadc.c
We don't need ADC in romstage.