RE: [PATCH v6 4/4] i2c: designware: Add doorbell support for Mendocino

Limonciello, Mario
2023-03-27T17:07:12Z

[Public]

> > static int psp_send_i2c_req(enum psp_i2c_req_type i2c_req_type)
> > {
> > struct psp_i2c_req *req;
> > @@ -87,7 +101,7 @@ static int psp_send_i2c_req(enum psp_i2c_req_type
> i2c_req_type)
> > req->type = i2c_req_type;
> >
> > start = jiffies;
> > - ret = read_poll_timeout(psp_send_i2c_req_cezanne, status,
> > + ret = read_poll_timeout(_psp_send_i2c_req, status,
> > (status != -EBUSY),
> > PSP_I2C_REQ_RETRY_DELAY_US,
> > PSP_I2C_REQ_RETRY_CNT *
> PSP_I2C_REQ_RETRY_DELAY_US,
> The timeout error handling message after this has "acquire" and
> "release" flopped.
>

Thx, will fix.

> > @@ -275,6 +291,13 @@ int i2c_dw_amdpsp_probe_lock_support(struct
> dw_i2c_dev *dev)
> > if (psp_i2c_dev)
> > return -EEXIST;
> >
> > + /* Cezanne uses platform mailbox, Mendocino and later use doorbell
> */
> > + rdev = pci_get_domain_bus_and_slot(0, 0, PCI_DEVFN(0, 0));
> > + if (rdev->device == 0x1630)
> > + _psp_send_i2c_req = psp_send_i2c_req_cezanne;
> > + else
> > + _psp_send_i2c_req = psp_send_i2c_req_mendocino;
> Thinking about naming again, perhaps "mendocino" should be dropped
> from the function name as the logic applies to all platforms except
> cezanne.

OK.