[yocto] [PATCH 0/7][KERNEL] add usb and mei features

[Darren Hart]

On 05/04/2012 03:07 PM, tom.zanussi at intel.com wrote:
> From: Tom Zanussi <tom.zanussi at intel.com>
> 
> This adds a few new features, one each for usb/[xeou]hci-hcd and
> another for amt/mei, and refactors existing config options into a new
> usb/base, which are then used in crownbay.
> 
> v2: after suggestions from Bruce and Darren of a preference for a more
> flattened feature tree structure, moved all the features into a single
> usb/ feature dir.  I did however retain the common 'base' feature
> because inlining that in each feature would mean that the same common
> set would be repeated in multiple config fragments if more than one usb
> feature was included in a BSP.

As things stand now, a BSP would have to include both the base and the
*hcd right?

include usb/base.scc
include ehci-hcd.scc

Seems to me we should manage the dependencies wherever we can. When I've
created fragments I've been including their requirements as well to make
it easier on the integrator. Since you've put the dependencies in their
own fragment, why not include the fragment in the *hcd.scc files?

+++ b/meta/cfg/kernel-cache/features/usb/ehci-hcd.scc
@@ -0,0 +1,4 @@
+define KFEATURE_DESCRIPTION "Enable options for ehci (USB 2.0)"
+define KFEATURE_COMPATIBILITY board
+
+ include base.scc
+kconf hardware ehci-hcd.cfg

Now if someone need only include the one line for the *hcd. Since it's
only a total of 3 lines of CONFIG settings we're packaging up here, it
seems to me we should be able to enable it with only 1 line of meta data.

--
Darren

> 
> Please pull into linux-yocto-3.2.
> 
> Thanks,
> 
> Tom
> 
> The following changes since commit b14a08f5c7b469a5077c10942f4e1aec171faa9d:
>   Yang Shi (1):
>         meta: Clean up BSPs kernel config
> 
> are available in the git repository at:
> 
>   git://git.yoctoproject.org/linux-yocto-2.6.37-contrib.git tzanussi/xhcd-mei-features
>   http://git.yoctoproject.org/cgit.cgi//log/?h=tzanussi/xhcd-mei-features
> 
> Tom Zanussi (7):
>   meta: add usb/base feature
>   meta: add usb/xhci-hcd feature
>   meta: add usb/ehci-hcd feature
>   meta: add usb/ohci-hcd feature
>   meta: add usb/uhci-hcd feature
>   meta/crownbay: use usb features
>   meta: add mei feature
> 
>  meta/cfg/kernel-cache/bsp/crownbay/crownbay.cfg |    6 ------
>  meta/cfg/kernel-cache/bsp/crownbay/crownbay.scc |    5 +++++
>  meta/cfg/kernel-cache/features/amt/mei/mei.cfg  |    3 +++
>  meta/cfg/kernel-cache/features/amt/mei/mei.scc  |    4 ++++
>  meta/cfg/kernel-cache/features/usb/base.cfg     |    3 +++
>  meta/cfg/kernel-cache/features/usb/base.scc     |    4 ++++
>  meta/cfg/kernel-cache/features/usb/ehci-hcd.cfg |    1 +
>  meta/cfg/kernel-cache/features/usb/ehci-hcd.scc |    4 ++++
>  meta/cfg/kernel-cache/features/usb/ohci-hcd.cfg |    1 +
>  meta/cfg/kernel-cache/features/usb/ohci-hcd.scc |    4 ++++
>  meta/cfg/kernel-cache/features/usb/uhci-hcd.cfg |    1 +
>  meta/cfg/kernel-cache/features/usb/uhci-hcd.scc |    4 ++++
>  meta/cfg/kernel-cache/features/usb/xhci-hcd.cfg |    1 +
>  meta/cfg/kernel-cache/features/usb/xhci-hcd.scc |    4 ++++
>  14 files changed, 39 insertions(+), 6 deletions(-)
>  create mode 100644 meta/cfg/kernel-cache/features/amt/mei/mei.cfg
>  create mode 100644 meta/cfg/kernel-cache/features/amt/mei/mei.scc
>  create mode 100644 meta/cfg/kernel-cache/features/usb/base.cfg
>  create mode 100644 meta/cfg/kernel-cache/features/usb/base.scc
>  create mode 100644 meta/cfg/kernel-cache/features/usb/ehci-hcd.cfg
>  create mode 100644 meta/cfg/kernel-cache/features/usb/ehci-hcd.scc
>  create mode 100644 meta/cfg/kernel-cache/features/usb/ohci-hcd.cfg
>  create mode 100644 meta/cfg/kernel-cache/features/usb/ohci-hcd.scc
>  create mode 100644 meta/cfg/kernel-cache/features/usb/uhci-hcd.cfg
>  create mode 100644 meta/cfg/kernel-cache/features/usb/uhci-hcd.scc
>  create mode 100644 meta/cfg/kernel-cache/features/usb/xhci-hcd.cfg
>  create mode 100644 meta/cfg/kernel-cache/features/usb/xhci-hcd.scc
> 

-- 
Darren Hart
Intel Open Source Technology Center
Yocto Project - Linux Kernel