linux-kernel - Re: [PATCH] mailbox: tegra: Fix superfluous IRQ error message

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Date:   Tue, 12 Nov 2019 12:02:02 +0000
From:   Jon Hunter <jonathanh@...dia.com>
To:     Thierry Reding <thierry.reding@...il.com>,
        Greg Kroah-Hartman <gregkh@...uxfoundation.org>,
        Jassi Brar <jassisinghbrar@...il.com>
CC:     <linux-kernel@...r.kernel.org>, <linux-tegra@...r.kernel.org>
Subject: Re: [PATCH] mailbox: tegra: Fix superfluous IRQ error message

Hi Greg,

On 14/10/2019 14:24, Thierry Reding wrote:
> On Fri, Oct 11, 2019 at 09:34:59AM +0100, Jon Hunter wrote:
>> Commit 7723f4c5ecdb ("driver core: platform: Add an error message to
>> platform_get_irq*()") added an error message to avoid drivers having
>> to print an error message when IRQ lookup fails. However, there are
>> some cases where IRQs are optional and so new optional versions of
>> the platform_get_irq*() APIs have been added for these cases.
>>
>> The IRQs for Tegra HSP module are optional because not all instances
>> of the module have the doorbell and all of the shared interrupts.
>> Hence, since the above commit was applied the following error messages
>> are now seen on Tegra194 ...
>>
>>  ERR KERN tegra-hsp c150000.hsp: IRQ doorbell not found
>>  ERR KERN tegra-hsp c150000.hsp: IRQ shared0 not found
>>
>> The Tegra HSP driver deliberately does not fail if these are not found
>> and so fix the above errors by updating the Tegra HSP driver to use
>> the platform_get_irq_byname_optional() API.
>>
>> Signed-off-by: Jon Hunter <jonathanh@...dia.com>
>> ---
>>  drivers/mailbox/tegra-hsp.c | 4 ++--
>>  1 file changed, 2 insertions(+), 2 deletions(-)
> 
> Perhaps Greg should pick up this patch because he's carrying the patch
> that adds the platform_get_irq_byname_optional() patch for v5.5.
> 
> Greg, would you prefer a copy of this in your mailbox, or does the
> following patchwork link suffice:
> 
> 	http://patchwork.ozlabs.org/patch/1175012/
> 
> Either way, this patch:
> 
> Acked-by: Thierry Reding <treding@...dia.com>
> 
> Thierry

Are you OK to pick this up? Do you need Jassi's ACK as well?

Thanks!
Jon

-- 
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