Re: [PATCH v6 1/4] ipmi: ssif_bmc: Add SSIF BMC driver

Jae Hyun Yoo
2022-03-14T18:16:13Z

Hi Quan,

[...]

> +static void on_read_requested_event(struct ssif_bmc_ctx *ssif_bmc, u8 *val)
> +{
> + if (ssif_bmc->state == SSIF_READY ||
> + ssif_bmc->state == SSIF_START ||
> + ssif_bmc->state == SSIF_REQ_RECVING ||
> + ssif_bmc->state == SSIF_RES_SENDING) {
> + ssif_bmc->state = SSIF_BAD_SMBUS;
> + dev_warn(&ssif_bmc->client->dev,
> + "Warn: %s unexpected READ REQUESTED in state=%s\n",
> + __func__, state_to_string(ssif_bmc->state));

It will print out that the case happens in SSIF_BAD_SMBUS state always
because ssif_bmc->state is already assigned as SSIF_BAD_SMBUS above.
Move the assignment to after the dev_warn printing.

[...]

> +static const struct of_device_id ssif_bmc_match[] = {
> + { .compatible = "ampere,ssif-bmc" },

Does this driver have any Ampere specific handling? If not, it could be
"ssif-bmc" as a generic SSIF driver.

> + { },
> +};

Add 'MODULE_DEVICE_TABLE(of, ssif_bmc_match);'

> +
> +static const struct i2c_device_id ssif_bmc_id[] = {
> + { DEVICE_NAME, 0 },
> + { },
> +};
> +

Remove this blank line.

> +MODULE_DEVICE_TABLE(i2c, ssif_bmc_id);
> +
> +static struct i2c_driver ssif_bmc_driver = {
> + .driver = {
> + .name = DEVICE_NAME,
> + .of_match_table = ssif_bmc_match,
> + },
> + .probe = ssif_bmc_probe,
> + .remove = ssif_bmc_remove,
> + .id_table = ssif_bmc_id,
> +};
> +

Remove this blank line too.

-Jae

> +module_i2c_driver(ssif_bmc_driver);
> +
> +MODULE_AUTHOR("Quan Nguyen <quan@os.amperecomputing.com>");
> +MODULE_AUTHOR("Chuong Tran <chuong@os.amperecomputing.com>");
> +MODULE_DESCRIPTION("Linux device driver of the BMC IPMI SSIF interface.");
> +MODULE_LICENSE("GPL"); …