On Sun, 2021-10-17 at 22:08 +0300, Andy Shevchenko wrote:
> On Sun, Oct 17, 2021 at 7:16 PM Tsuchiya Yuto <kitakar@xxxxxxxxx> wrote:
> > On Microsoft Surface 3 (uses Intel's Atom Cherry Trail SoC), executing
> > intel_soc_pmic_exec_mipi_pmic_seq_element() results in the following
> > error message:
> >
> > [ 7196.356682] intel_soc_pmic_exec_mipi_pmic_seq_element: Not implemented
> > [ 7196.356686] intel_soc_pmic_exec_mipi_pmic_seq_element: i2c-addr: 0x6e reg-addr 0x57 value 0x63 mask 0xff
> >
> > Surface 3 uses the PMIC device INT33FD, and the DSDT describes its _HRV
> > value is 0x02 [1]:
> >
> > Scope (PCI0.I2C7)
> > {
> > Device (PMIC)
> > {
> > Name (_ADR, Zero) // _ADR: Address
> > Name (_HID, "INT33FD" /* Intel Baytrail Power Management IC */) // _HID: Hardware ID
> > Name (_CID, "INT33FD" /* Intel Baytrail Power Management IC */) // _CID: Compatible ID
> > Name (_DDN, "CRYSTAL COVE+ AIC") // _DDN: DOS Device Name
> > Name (_HRV, 0x02) // _HRV: Hardware Revision
> > Name (_UID, One) // _UID: Unique ID
> > Name (_DEP, Package (0x01) // _DEP: Dependencies
> > {
> > I2C7
> > })
> > [...]
> >
> > Due to this _HRV value, intel_pmic_bytcrc is used as the PMIC driver.
> > However, the i2c address is currently not defined in this driver.
> > This commit adds the missing i2c address 0x6e to the intel_pmic_bytcrc
> > driver.
> >
> > [1] https://github.com/linux-surface/acpidumps/blob/f8db3d150815aa21530635b7e646eee271e3b8fe/surface_3/dsdt.dsl#L10868
>
> > References: cc0594c4b0ef ("ACPI / PMIC: Add i2c address for thermal control")
>
> Not sure what this tag means.
Thanks!
I thought I could use this tag to mean "I made this patch with this
commit as a reference". If I used this tag incorrectly, I'll avoid using
it in the future and instead write with my words.
Regards,
Tsuchiya Yuto
