Aw: Re: Re: Driver load order

[Frank Wunderlich]

Hi

> Gesendet: Donnerstag, 19. Mai 2022 um 15:10 Uhr
> Von: "Sascha Hauer" <sha at pengutronix.de>
>
> I gave it a test with your rk808 driver. It just works \o/
>
> regulator_get() triggers probing of the rk808 regulator driver and
> returns a valid regulator.

Added rk808 drivers to my and added basic Kconfig/Makefile entry for mfd driver.

chip-id of my pmic is read:

rk808 rk8090: chip id: 0x8090

looks like regulators are enabled during access from my iodomain driver :) except vccio4/5

rk_iodomain fdc20000.syscon at fdc20000:io-domains.of: DEBUG reg:pmuio1 (00000000404b0450) uV:3300000
rk_iodomain fdc20000.syscon at fdc20000:io-domains.of: DEBUG reg:pmuio2 (00000000404b0980) uV:3300000
rk_iodomain fdc20000.syscon at fdc20000:io-domains.of: DEBUG reg:vccio1 (00000000404b0eb0) uV:900000
rk_iodomain fdc20000.syscon at fdc20000:io-domains.of: DEBUG reg:vccio3 (000000004049c720) uV:3300000
rk_iodomain fdc20000.syscon at fdc20000:io-domains.of: DEBUG reg:vccio4 (000000004049cc50) uV:-22
rk_iodomain fdc20000.syscon at fdc20000:io-domains.of: DEBUG reg:vccio5 (000000004049a180) uV:-22
rk_iodomain fdc20000.syscon at fdc20000:io-domains.of: DEBUG reg:vccio6 (000000004049a6a8) uV:1800000
rk_iodomain fdc20000.syscon at fdc20000:io-domains.of: DEBUG reg:vccio7 (000000004049abd8) uV:-22

vccio 4/5 using regulator with name SWITCH_REG1, maybe this is not registered?

&pmu_io_domains {
    pmuio1-supply = <&vcc3v3_pmu>;
    pmuio2-supply = <&vcc3v3_pmu>;
    vccio1-supply = <&vccio_acodec>;
    vccio3-supply = <&vccio_sd>;
    vccio4-supply = <&vcc_3v3>;
    vccio5-supply = <&vcc_3v3>;
    vccio6-supply = <&vcc_1v8>;
    vccio7-supply = <&vcc_3v3>;
    status = "okay";
};

regards Frank