[PATCH] serial: 8250: 8250_core: Use dev_name() during request_irq()
vigneshr at ti.com
Wed Mar 15 04:42:17 PDT 2017
On Tuesday 14 March 2017 09:29 PM, Andy Shevchenko wrote:
> On Tue, Mar 14, 2017 at 3:44 PM, Vignesh R <vigneshr at ti.com> wrote:
>> On Monday 13 March 2017 01:35 AM, Andy Shevchenko wrote:
>>> On Wed, Mar 8, 2017 at 2:19 PM, Vignesh R <vigneshr at ti.com> wrote:
>>>> Passing "serial" as name during request_irq() results in all serial port
>>>> irqs have same name. This does not help much to easily identify which
>>>> irq belongs to which serial port instance. Therefore pass dev_name()
>>>> during request_irq() so that better identifiable name is listed for
>>>> serial ports in cat /proc/interrupts output.
>>>> Output of cat /proc/interrupts
>>>> Before this patch:
>>>> 26: 689 0 GICv2 309 Edge serial
>>>> After this patch:
>>>> 26: 696 0 GICv2 309 Edge 2530c00.serial
>> But, this change is making interrupt name more descriptive
> It doesn't in PCI case, it makes it worse.
> (The world is not DT-centric)
>>> Besides that imagine what would be the name of PCI device here.
>>> I would suggest adding ID if you need one in a form like
>>> "serial%d", where ID may or may not be supplied by the actual 8250 drivers.
>> Are you suggesting to use serial_index() as ID?
Ok thanks, I will send on incremental fix as this patch is already applied.
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