[PATCH v14 6/6] firmware: drivers: imx: adds miscdev

Pankaj Gupta pankaj.gupta at nxp.com
Tue Apr 1 23:19:36 PDT 2025


>> diff drivers/firmware/imx/ele_common.c
...
>> +			err = -EPERM;
>> +			goto exit;
>> +		}
>> +	}
>> +	set_se_rcv_msg_timeout(SE_RCV_MSG_LONG_TIMEOUT);

> you set default TIMEMOUT at suspend, but set LONG TIMEOUT here.
> What's happen, if one instance already resumed, and set
SE_RCV_MSG_LONG_TIMEOUT
> the other instance still in suspend, which will wrong use
SE_RCV_MSG_LONG_TIMEOUT.

You are correct. Since the interface is single here. It is not a problem.
For multiple interfaces, It is required to be put in priv structure.
Will update this in v15.

>> +
>> +	err = ele_msg_send_rcv(dev_ctx,
>> +			       tx_msg,
>> +			       cmd_snd_rcv_rsp_info.tx_buf_sz,
>> +			       rx_msg,

>> a/drivers/firmware/imx/se_ctrl.c b/drivers/firmware/imx/se_ctrl.c 
>> index 144a727bbfe0..9dbe866b7b13 100644
>> --- a/drivers/firmware/imx/se_ctrl.c

>> +char *get_se_if_name(u8 se_if_id)
>> +{
>> +	switch (se_if_id) {
>> +	case SE_TYPE_ID_DBG: return SE_TYPE_STR_DBG;
>> +	case SE_TYPE_ID_HSM: return SE_TYPE_STR_HSM;

> If only use once, needn't define macro, just
>	return "dbg".

It will be used multiple times in coming patches.
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