Re: [PATCH v2 6/7] i3c: master: Add driver for Cadence IP

From: Randy Dunlap <rdunlap@infradead.org>
To: Boris Brezillon <boris.brezillon@free-electrons.com>
Cc: Wolfram Sang <wsa@the-dreams.de>,
	linux-i2c@vger.kernel.org, Jonathan Corbet <corbet@lwn.net>,
	linux-doc@vger.kernel.org,
	Greg Kroah-Hartman <gregkh@linuxfoundation.org>,
	Arnd Bergmann <arnd@arndb.de>,
	Przemyslaw Sroka <psroka@cadence.com>,
	Arkadiusz Golec <agolec@cadence.com>,
	Alan Douglas <adouglas@cadence.com>,
	Bartosz Folta <bfolta@cadence.com>, Damian Kos <dkos@cadence.com>,
	Alicja Jurasik-Urbaniak <alicja@cadence.com>,
	Cyprian Wronka <cwronka@cadence.com>,
	Suresh Punnoose <sureshp@cadence.com>,
	Thomas Petazzoni <thomas.petazzoni@free-electrons.com>,
	Nishanth Menon <nm@ti.com>, Rob Herring <robh+dt@kernel.org>,
	Pawel Moll <pawel.moll@arm.com>,
	Mark Rutland <mark.rutland@arm.com>,
	Ian Campbell <ijc+devicetree@hellion.org.uk>,
	Kumar Gala <galak@codeaurora.org>,
	devicetree@vger.kernel.org, linux-kernel@vger.kernel.org,
	Vitor Soares <Vitor.Soares@synopsys.com>,
	Geert Uytterhoeven <geert@linux-m68k.org>,
	Linus Walleij <linus.walleij@linaro.org>
Subject: Re: [PATCH v2 6/7] i3c: master: Add driver for Cadence IP
Date: Thu, 14 Dec 2017 14:10:06 -0800	[thread overview]
Message-ID: <3ea7ec44-3cf7-9f2f-c6e2-161fad939aa3@infradead.org> (raw)
In-Reply-To: <20171214214442.55902041@bbrezillon>

On 12/14/2017 12:44 PM, Boris Brezillon wrote:
> On Thu, 14 Dec 2017 12:25:14 -0800
> Randy Dunlap <rdunlap@infradead.org> wrote:
> 
>> On 12/14/2017 12:17 PM, Boris Brezillon wrote:
>>>>> +	events.events = I3C_CCC_EVENT_HJ | I3C_CCC_EVENT_MR;
>>>>> +	ret = i3c_master_enec_locked(m, I3C_BROADCAST_ADDR, &events);
>>>>> +	if (ret)
>>>>> +		pr_info("Failed to re-enable H-J");    
>>>> 		Not very good info...  
>>> What do you mean? Is it the H-J that bothers you (I can replace it by
>>> 'Hot-Join'), or is it something else?  
>>
>> Who is the message for?  If it's for developers, you could use
>> pr_debug().  If it's for users, it needs more clarity.
> 
> I think it's of interest to anyone including users. If we fail to
> re-enable Hot-Join that means hotplug is no longer working which is
> a bad news.
> 
>>
>> Does it print the source of the message? (module name e.g.)
> 
> I could replace it by
> 
> 	dev_err(m->parent, "Failed to re-enable Hot-Join");
> 

Yes, that's a good plan.

Thanks.

> 
> 
>> and yes, Hot-Join would be better IMO.

-- 
~Randy