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SubjectRe: [PATCH 0/7] Move dell-led to drivers/platform/x86
Date
On Thursday 08 December 2016 15:26:37 Jacek Anaszewski wrote:
> Hi Michał,
>
> Thanks for the patch set.
>
> On 12/08/2016 01:36 PM, Michał Kępień wrote:
> > This patch series moves the dell-led driver from the LED subsystem
> > to the x86 platform driver subsystem. I decided to also CC the
> > sound subsystem contacts for the whole series as
> > sound/pci/hda/dell_wmi_helper.c is also affected.
> >
> > The original motivation behind this effort was to move all code
> > using the dell-smbios module to the x86 platform driver subsystem.
> > While I was investigating the possibilites to do that, it quickly
> > emerged that dell-led can and in fact should be moved to the x86
> > platform driver subsystem in its entirety.
> >
> > dell-led consists of two major parts:
> > - the part exposing a microphone mute LED interface, introduced
> > in
> >
> > db6d8cc ("dell-led: add mic mute led interface"); this
> > interface is used by sound/pci/hda/dell_wmi_helper.c; while
> > the original implementation used a WMI interface, it was
> > changed to use dell-smbios in cf0d7ea ("dell-led: use
> > dell_smbios_find_token() for finding mic DMI tokens") and
> > 0c41a08 ("dell-led: use
> > dell_smbios_send_request() for performing SMBIOS calls"),
> >
> > - the part handling an activity LED present in Dell Latitude 2100
> >
> > netbooks, introduced in 72dcd8d ("leds: Add Dell Business Class
> > Netbook LED driver"); it binds to a specific WMI GUID and then
> > registers a LED device which is controlled using WMI (i.e. it
> > is basically a WMI driver).
> >
> > Patches 1-4 clean up the microphone mute LED interface to minimize
> > the amount of code moved around.
> >
> > Patch 5 moves the microphone mute LED interface to
> > drivers/platform/x86/dell-laptop.c, effectively causing
> > sound/pci/hda/dell_wmi_helper.c to depend on CONFIG_DELL_LAPTOP
> > instead of CONFIG_LEDS_DELL_NETBOOKS.
> >
> > Patch 6 reverts dell-led to the state it was in after its initial
> > commit 72dcd8d ("leds: Add Dell Business Class Netbook LED
> > driver") by removing all remnants of the microphone mute LED
> > handling code.
> >
> > Patch 7 moves all that is left of dell-led (i.e. the activity LED
> > part, as originally implemented), to a new module which is placed
> > in drivers/platform/x86/dell-wmi-led.c.
> >
> > This patch series is based on linux-leds/for-4.11 as the LED
> > subsystem is affected by all patches except patch 3.
> >
> > If anyone reading this has access to a Dell device which has an
> > activity LED and/or a microphone mute LED currently supported by
> > dell-led, I would love to hear from you as I do not have the
> > hardware needed to practically test this patch series.
>
> I think that it is necessary to find someone who will give their
> Tested-by.
>
> What I can accept immediately is moving the driver in the current
> shape to x86 platform drivers. I could expose a stable branch with
> that patch for the x86 platform maintainers then.

Adding Mario Limonciello from @dell to discussion.

Mario, any chance you could be able to test this patch series?

> > drivers/leds/Kconfig | 9 ---
> > drivers/leds/Makefile | 1 -
> > drivers/platform/x86/Kconfig | 8 +++
> > drivers/platform/x86/Makefile | 1 +
> > drivers/platform/x86/dell-laptop.c | 28 ++++++++
> > .../dell-led.c => platform/x86/dell-wmi-led.c} | 75
> > +++------------------- include/linux/dell-led.h
> > | 6 +- sound/pci/hda/dell_wmi_helper.c
> > | 18 +++--- 8 files changed, 55 insertions(+), 91 deletions(-)
> > rename drivers/{leds/dell-led.c => platform/x86/dell-wmi-led.c}
> > (73%)

--
Pali Rohár
pali.rohar@gmail.com
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