Re: [PATCH] hid:intel-ish-hid: add MSI interrupt support

[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index]

 



On Mon, 2018-12-17 at 16:48 +0100, Jiri Kosina wrote:
> On Tue, 11 Dec 2018, hongyan.song@xxxxxxxxx wrote:
> 
> > From: Song Hongyan <hongyan.song@xxxxxxxxx>
> > 
> > Now ish hid ipc only support sideband interrupt but on some
> > platforms
> > they use MSI interrupt.
> > In order to make the interrupt type coverage all the scenario add
> > single MSI interrupt support, it can match all interrupt types.
> 
> Let's add Srinivas to CC as well.
> 
> > 
> > Signed-off-by: Song Hongyan <hongyan.song@xxxxxxxxx>
Acked-by: Srinivas Pandruvada <srinivas.pandruvada@xxxxxxxxxxxxxxx>

> > ---
> > v2: update the comments, add more description about this patch.
> > 
> >  drivers/hid/intel-ish-hid/ipc/pci-ish.c | 7 ++++++-
> >  1 file changed, 6 insertions(+), 1 deletion(-)
> > 
> > diff --git a/drivers/hid/intel-ish-hid/ipc/pci-ish.c
> > b/drivers/hid/intel-ish-hid/ipc/pci-ish.c
> > index 8793cc4..a6e1ee7 100644
> > --- a/drivers/hid/intel-ish-hid/ipc/pci-ish.c
> > +++ b/drivers/hid/intel-ish-hid/ipc/pci-ish.c
> > @@ -117,6 +117,7 @@ static int ish_probe(struct pci_dev *pdev,
> > const struct pci_device_id *ent)
> >  {
> >  	int ret;
> >  	struct ish_hw *hw;
> > +	unsigned long irq_flag = 0;
> >  	struct ishtp_device *ishtp;
> >  	struct device *dev = &pdev->dev;
> >  
> > @@ -156,8 +157,12 @@ static int ish_probe(struct pci_dev *pdev,
> > const struct pci_device_id *ent)
> >  	pdev->dev_flags |= PCI_DEV_FLAGS_NO_D3;
> >  
> >  	/* request and enable interrupt */
> > +	ret = pci_alloc_irq_vectors(pdev, 1, 1, PCI_IRQ_ALL_TYPES);
> > +	if (!pdev->msi_enabled && !pdev->msix_enabled)
> > +		irq_flag = IRQF_SHARED;
> > +
> >  	ret = devm_request_irq(dev, pdev->irq, ish_irq_handler,
> > -			       IRQF_SHARED, KBUILD_MODNAME, ishtp);
> > +			       irq_flag, KBUILD_MODNAME, ishtp);
> >  	if (ret) {
> >  		dev_err(dev, "ISH: request IRQ %d failed\n", pdev-
> > >irq);
> >  		return ret;
> > -- 
> > 2.7.4
> > 
> 
> 




[Index of Archives]     [Linux Media Devel]     [Linux USB Devel]     [Video for Linux]     [Linux Audio Users]     [Yosemite News]     [Linux Kernel]     [Linux SCSI]     [Linux Wireless Networking]     [Linux Omap]

  Powered by Linux