linux-kernel - Re: [PATCH 1/2] clk: mvebu: set flags in CP110 gate clock

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Date:   Wed, 24 Aug 2016 10:28:34 +0200
From:   Marcin Wojtas <mw@...ihalf.com>
To:     Andrew Lunn <andrew@...n.ch>
Cc:     linux-kernel@...r.kernel.org,
        "linux-arm-kernel@...ts.infradead.org" 
        <linux-arm-kernel@...ts.infradead.org>, linux-clk@...r.kernel.org,
        Stephen Boyd <sboyd@...eaurora.org>,
        Michael Turquette <mturquette@...libre.com>,
        Sebastian Hesselbarth <sebastian.hesselbarth@...il.com>,
        Jason Cooper <jason@...edaemon.net>,
        Thomas Petazzoni <thomas.petazzoni@...e-electrons.com>,
        Gregory Clément 
        <gregory.clement@...e-electrons.com>, nadavh@...vell.com,
        Lior Amsalem <alior@...vell.com>,
        Tomasz Nowicki <tn@...ihalf.com>,
        Grzegorz Jaszczyk <jaz@...ihalf.com>
Subject: Re: [PATCH 1/2] clk: mvebu: set flags in CP110 gate clock

HI Andrew,

2016-08-23 16:16 GMT+02:00 Andrew Lunn <andrew@...n.ch>:
> On Tue, Aug 23, 2016 at 08:26:48AM +0200, Marcin Wojtas wrote:
>> Armada CP110 system controller comprise its own routine responsble
>> for registering gate clocks. Among others 'flags' field in
>> struct clk_init_data was not set, using a random values, which
>> may cause an unpredicted behavior.
>>
>> This patch fixes the problem by setting CLK_IS_BASIC flag for
>> all gated clocks of Armada 7k/8k SoCs family.
>>
>> Fixes: d3da3eaef7f4 ("clk: mvebu: new driver for Armada CP110 system ...")
>>
>> Signed-off-by: Marcin Wojtas <mw@...ihalf.com>
>> ---
>>  drivers/clk/mvebu/cp110-system-controller.c | 1 +
>>  1 file changed, 1 insertion(+)
>>
>> diff --git a/drivers/clk/mvebu/cp110-system-controller.c b/drivers/clk/mvebu/cp110-system-controller.c
>> index 7fa42d6..0835e1d 100644
>> --- a/drivers/clk/mvebu/cp110-system-controller.c
>> +++ b/drivers/clk/mvebu/cp110-system-controller.c
>> @@ -144,6 +144,7 @@ static struct clk *cp110_register_gate(const char *name,
>>
>>       init.name = name;
>>       init.ops = &cp110_gate_ops;
>> +     init.flags = CLK_IS_BASIC;
>>       init.parent_names = &parent_name;
>>       init.num_parents = 1;
>
> Hi Marcin
>
> How about adding a memset for init? That would also help if new fields
> every get added to clk_init_data.
>

Sure, it can be added.

Best regards,
Marcin