lkml.org 
[lkml]   [2018]   [May]   [16]   [last100]   RSS Feed
Views: [wrap][no wrap]   [headers]  [forward] 
 
Messages in this thread
/
From
Date
SubjectRe: [PATCH 1/4] amba: Export amba_bustype
On Tue, May 8, 2018 at 10:06 PM, Kim Phillips <kim.phillips@arm.com> wrote:
> This patch is provided in the context of allowing the Coresight driver
> subsystem to be loaded as modules. Coresight uses amba_bus in its call
> to bus_find_device() in of_coresight_get_endpoint_device() when
> searching for a configurable endpoint device. This patch allows
> Coresight to reference amba_bustype when built as a module.

> --- a/drivers/amba/bus.c
> +++ b/drivers/amba/bus.c
> @@ -197,6 +197,7 @@ struct bus_type amba_bustype = {
> .pm = &amba_pm,
> .force_dma = true,
> };
> +EXPORT_SYMBOL_GPL(amba_bustype);

Oh,

What wrong with the approach let's say similar to PCI bus?

Whenever you have a struct device you may use two helpers:

dev_is_pci() -> is the device of PCI bus type?
to_pci_dev() -> get's container of struct device for PCI bus case

--
With Best Regards,
Andy Shevchenko

\
 
 \ /
  Last update: 2018-05-16 11:16    [W:0.073 / U:20.884 seconds]
©2003-2018 Jasper Spaans|hosted at Digital Ocean and TransIP|Read the blog|Advertise on this site