linux-kernel - Re: [PATCH v2 11/19] ARM: at91/PMC: make register base soc independent

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Date:	Thu, 23 Feb 2012 09:38:15 +0100
From:	Nicolas Ferre <nicolas.ferre@...el.com>
To:	Ryan Mallon <rmallon@...il.com>
CC:	plagnioj@...osoft.com, linux-arm-kernel@...ts.infradead.org,
	linux-kernel@...r.kernel.org, linux@....linux.org.uk
Subject: Re: [PATCH v2 11/19] ARM: at91/PMC: make register base soc independent

On 02/22/2012 11:50 PM, Ryan Mallon :
> On 22/02/12 20:39, Nicolas Ferre wrote:
> 
>> From: Jean-Christophe PLAGNIOL-VILLARD <plagnioj@...osoft.com>
>>
>> Signed-off-by: Jean-Christophe PLAGNIOL-VILLARD <plagnioj@...osoft.com>
>> Acked-by: Nicolas Ferre <nicolas.ferre@...el.com>
>> Reviewed-by: Ryan Mallon <rmallon@...il.com>
>> ---
> 
> <snip>
> 
>> -	seq_printf(s, "SCSR = %8x\n", scsr = at91_sys_read(AT91_PMC_SCSR));
>> -	seq_printf(s, "PCSR = %8x\n", pcsr = at91_sys_read(AT91_PMC_PCSR));
>> -	seq_printf(s, "MOR  = %8x\n", at91_sys_read(AT91_CKGR_MOR));
>> -	seq_printf(s, "MCFR = %8x\n", at91_sys_read(AT91_CKGR_MCFR));
>> -	seq_printf(s, "PLLA = %8x\n", at91_sys_read(AT91_CKGR_PLLAR));
>> +	seq_printf(s, "SCSR = %8x\n", scsr = at91_pmc_read(AT91_PMC_SCSR));
>> +	seq_printf(s, "PCSR = %8x\n", pcsr = at91_pmc_read(AT91_PMC_PCSR));
> 
> 
> I realise the original code is wrong, so doesn't need to be fixed in
> this patch, but can we please move the assignments out of the seq_printf
> calls.

Well, I would not say "wrong". But ugly, for sure. I queue a patch to
correct this just before this one.

> <snip>
> 
>>  void __init at91_ioremap_ramc(int id, u32 addr, u32 size)
>> @@ -208,7 +207,7 @@ void __init at91_ioremap_ramc(int id, u32 addr, u32 size)
>>  	}
>>  	at91_ramc_base[id] = ioremap(addr, size);
>>  	if (!at91_ramc_base[id])
>> -		pr_warn("Impossible to ioremap ramc.%d 0x%x\n", id, addr);
>> +		panic("Impossible to ioremap ramc.%d 0x%x\n", id, addr);
> 
> 
> This is in the wrong patch, and should be folded into the correct patch.

Absolutely, this belongs to the previous patch. Thanks for highlighting
this.

Best regards,
-- 
Nicolas Ferre
--
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