linux-kernel - Re: [PATCH v1 1/1] mfd: intel-lpss: Switch over to MSI interrupts

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Date: Tue, 26 Mar 2024 18:21:47 +0200
From: Andy Shevchenko <andriy.shevchenko@...ux.intel.com>
To: Bjorn Helgaas <helgaas@...nel.org>
Cc: Lee Jones <lee@...nel.org>, linux-kernel@...r.kernel.org
Subject: Re: [PATCH v1 1/1] mfd: intel-lpss: Switch over to MSI interrupts

On Mon, Mar 25, 2024 at 04:19:15PM -0500, Bjorn Helgaas wrote:
> On Tue, Mar 12, 2024 at 06:59:05PM +0200, Andy Shevchenko wrote:

..

> > -	ret = pci_alloc_irq_vectors(pdev, 1, 1, PCI_IRQ_LEGACY);
> > +	ret = pci_alloc_irq_vectors(pdev, 1, 1, PCI_IRQ_ALL_TYPES);
> >  	if (ret < 0)
> >  		return ret;
> 
> I guess at least some of these devices do support INTx, since we
> always used INTx previously, right?
> 
> There are a bunch of bug reports complaining about a lack of _PRT
> entries for them, e.g., these from
> https://bugzilla.kernel.org/show_bug.cgi?id=212261#c24:

But this is not related to my patch, and the mentioned bug report seems about
all AMD and Intel platforms.

Can you, please, elaborate what the relation to my patch?

-- 
With Best Regards,
Andy Shevchenko