[RFC v3 04/18] firmware: thead: Add AON firmware protocol driver

Michal Wilczynski m.wilczynski at samsung.com
Tue Jan 28 16:27:10 UTC 2025



On 1/28/25 16:54, Michal Wilczynski wrote:
> 
> 
> On 1/21/25 10:56, Krzysztof Kozlowski wrote:
> 
>>> diff --git a/include/linux/firmware/thead/thead,th1520-aon.h b/include/linux/firmware/thead/thead,th1520-aon.h
>>> new file mode 100644
>>> index 000000000000..3daa17c01d17
>>> --- /dev/null
>>> +++ b/include/linux/firmware/thead/thead,th1520-aon.h
>>> @@ -0,0 +1,186 @@
>>> +/* SPDX-License-Identifier: GPL-2.0 */
>>> +/*
>>> + * Copyright (C) 2021 Alibaba Group Holding Limited.
>>> + */
>>> +
>>> +#ifndef _THEAD_AON_H
>>> +#define _THEAD_AON_H
>>> +
>>> +#include <linux/device.h>
>>> +#include <linux/types.h>
>>> +
>>> +#define AON_RPC_MSG_MAGIC (0xef)
>>> +#define TH1520_AON_RPC_VERSION 2
>>> +#define TH1520_AON_RPC_MSG_NUM 7
>>> +
>>> +extern struct th1520_aon_chan *aon_chan;
>>
>> Drop all externs.
> 
> This is required so the code will compile as the
> int th1520_aon_call_rpc(struct th1520_aon_chan *aon_chan, void *msg);
> is non static and exposed in the same header.
> 
> I really would like to keep th1520_aon_call_rpc in this header, as it
> could be useful for other drivers to construct their own RPC calls to
> reboot or shutdown the system e.g watchdog.

Oh I get it, simply drop extern not the whole expression, sorry it's
fine.

> 
>>
>>
>> Best regards,
>> Krzysztof
>>
>>


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