Thread (4 messages) flat view 4 messages, 2 authors, 2017-05-22

Re: gpio-exar: Why filtering out Commtech devices?

From: Sudip Mukherjee <sudip.mukherjee@codethink.co.uk>
Date: 2017-05-21 20:08:48
Also in: linux-gpio, lkml

Hi Jan,

On 21/05/17 12:46, Jan Kiszka wrote:
Hi Sudip,

why do we carry

	if (pcidev->vendor != PCI_VENDOR_ID_EXAR)
		return -ENODEV;

in gpio_exar_probe? This effectively prevents that

	EXAR_DEVICE(COMMTECH, COMMTECH_4222PCIE, pbn_exar_XR17V35x),
	EXAR_DEVICE(COMMTECH, COMMTECH_4224PCIE, pbn_exar_XR17V35x),
	EXAR_DEVICE(COMMTECH, COMMTECH_4228PCIE, pbn_exar_XR17V35x),

gain GPIO support. Do those devices lack access to the pins? Or can we
drop the filter. I don't have access to those devices, just wondering
because the code is not explaining the reason.
Same here. I do not have these devices and have no idea if they support 
the gpio pins or not.

Adding Matt Schulte in the Cc list, maybe he can comment.


-- 
Regards
Sudip
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