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Date:   Mon, 16 Jan 2017 21:49:54 +0100
From:   Jacek Anaszewski <jacek.anaszewski@...il.com>
To:     Michał Kępień <kernel@...pniu.pl>,
        Richard Purdie <rpurdie@...ys.net>,
        Pavel Machek <pavel@....cz>,
        Pali Rohár <pali.rohar@...il.com>,
        Darren Hart <dvhart@...radead.org>,
        Jaroslav Kysela <perex@...ex.cz>, Takashi Iwai <tiwai@...e.com>
Cc:     Andy Shevchenko <andy.shevchenko@...il.com>,
        Anthony Wong <anthony.wong@...onical.com>,
        linux-leds@...r.kernel.org, platform-driver-x86@...r.kernel.org,
        alsa-devel@...a-project.org, linux-kernel@...r.kernel.org
Subject: Re: [PATCH v2 6/6] dell-led: move driver to
 drivers/platform/x86/dell-wmi-led.c

Hi Michał,

Thanks for the patch set.

Would you mind fixing also the following issues raised by
checkpatch.pl?:

WARNING: Missing a blank line after declarations
#376: FILE: drivers/platform/x86/dell-wmi-led.c:64:
+	struct bios_args args;
+	args.length = length;

WARNING: Block comments use * on subsequent lines
#460: FILE: drivers/platform/x86/dell-wmi-led.c:148:
+	/* The Dell LED delay is based on 125ms intervals.
+	   Need to round up to next interval. */

WARNING: Block comments use a trailing */ on a separate line
#460: FILE: drivers/platform/x86/dell-wmi-led.c:148:
+	   Need to round up to next interval. */

WARNING: Comparisons should place the constant on the right side of the test
#463: FILE: drivers/platform/x86/dell-wmi-led.c:151:
+	if (0 == on_eighths)

WARNING: Comparisons should place the constant on the right side of the test
#470: FILE: drivers/platform/x86/dell-wmi-led.c:158:
+	if (0 == off_eighths)

The fixes could be placed in an incremental patch after this one.

Best regards,
Jacek Anaszewski


On 01/16/2017 02:22 PM, Michał Kępień wrote:
> The dell-led driver handles a specific WMI GUID present on some Dell
> laptops and as such it belongs in the x86 platform driver subsystem.
> Source code is moved along with the relevant Kconfig and Makefile
> entries, with some minor modifications:
> 
>   - Kconfig option is renamed from CONFIG_LEDS_DELL_NETBOOKS to
>     CONFIG_DELL_WMI_LED,
> 
>   - the X86 Kconfig dependency is removed as the whole
>     drivers/platform/x86 menu depends on it, so there is no need to
>     duplicate it,
> 
>   - the name of the module's source file is removed from the header
>     comment to avoid the need to update it in the future.
> 
> Signed-off-by: Michał Kępień <kernel@...pniu.pl>
> ---
>  drivers/leds/Kconfig                                     | 8 --------
>  drivers/leds/Makefile                                    | 1 -
>  drivers/platform/x86/Kconfig                             | 8 ++++++++
>  drivers/platform/x86/Makefile                            | 1 +
>  drivers/{leds/dell-led.c => platform/x86/dell-wmi-led.c} | 2 --
>  5 files changed, 9 insertions(+), 11 deletions(-)
>  rename drivers/{leds/dell-led.c => platform/x86/dell-wmi-led.c} (99%)
> 
> diff --git a/drivers/leds/Kconfig b/drivers/leds/Kconfig
> index f29b8698ca88..5af3fb2f52e4 100644
> --- a/drivers/leds/Kconfig
> +++ b/drivers/leds/Kconfig
> @@ -454,14 +454,6 @@ config LEDS_ADP5520
>  	  To compile this driver as a module, choose M here: the module will
>  	  be called leds-adp5520.
>  
> -config LEDS_DELL_NETBOOKS
> -	tristate "External LED on Dell Business Netbooks"
> -	depends on LEDS_CLASS
> -	depends on X86 && ACPI_WMI
> -	help
> -	  This adds support for the Latitude 2100 and similar
> -	  notebooks that have an external LED.
> -
>  config LEDS_MC13783
>  	tristate "LED Support for MC13XXX PMIC"
>  	depends on LEDS_CLASS
> diff --git a/drivers/leds/Makefile b/drivers/leds/Makefile
> index 6b8273736478..558d24675454 100644
> --- a/drivers/leds/Makefile
> +++ b/drivers/leds/Makefile
> @@ -52,7 +52,6 @@ obj-$(CONFIG_LEDS_REGULATOR)		+= leds-regulator.o
>  obj-$(CONFIG_LEDS_INTEL_SS4200)		+= leds-ss4200.o
>  obj-$(CONFIG_LEDS_LT3593)		+= leds-lt3593.o
>  obj-$(CONFIG_LEDS_ADP5520)		+= leds-adp5520.o
> -obj-$(CONFIG_LEDS_DELL_NETBOOKS)	+= dell-led.o
>  obj-$(CONFIG_LEDS_MC13783)		+= leds-mc13783.o
>  obj-$(CONFIG_LEDS_NS2)			+= leds-ns2.o
>  obj-$(CONFIG_LEDS_NETXBIG)		+= leds-netxbig.o
> diff --git a/drivers/platform/x86/Kconfig b/drivers/platform/x86/Kconfig
> index 81b8dcca8891..f9018e8c1e49 100644
> --- a/drivers/platform/x86/Kconfig
> +++ b/drivers/platform/x86/Kconfig
> @@ -143,6 +143,14 @@ config DELL_WMI_AIO
>  	  To compile this driver as a module, choose M here: the module will
>  	  be called dell-wmi-aio.
>  
> +config DELL_WMI_LED
> +	tristate "External LED on Dell Business Netbooks"
> +	depends on LEDS_CLASS
> +	depends on ACPI_WMI
> +	help
> +	  This adds support for the Latitude 2100 and similar
> +	  notebooks that have an external LED.
> +
>  config DELL_SMO8800
>  	tristate "Dell Latitude freefall driver (ACPI SMO88XX)"
>  	depends on ACPI
> diff --git a/drivers/platform/x86/Makefile b/drivers/platform/x86/Makefile
> index 2efa86d2a1a7..b061817ecaf1 100644
> --- a/drivers/platform/x86/Makefile
> +++ b/drivers/platform/x86/Makefile
> @@ -15,6 +15,7 @@ obj-$(CONFIG_DELL_SMBIOS)	+= dell-smbios.o
>  obj-$(CONFIG_DELL_LAPTOP)	+= dell-laptop.o
>  obj-$(CONFIG_DELL_WMI)		+= dell-wmi.o
>  obj-$(CONFIG_DELL_WMI_AIO)	+= dell-wmi-aio.o
> +obj-$(CONFIG_DELL_WMI_LED)	+= dell-wmi-led.o
>  obj-$(CONFIG_DELL_SMO8800)	+= dell-smo8800.o
>  obj-$(CONFIG_DELL_RBTN)		+= dell-rbtn.o
>  obj-$(CONFIG_ACER_WMI)		+= acer-wmi.o
> diff --git a/drivers/leds/dell-led.c b/drivers/platform/x86/dell-wmi-led.c
> similarity index 99%
> rename from drivers/leds/dell-led.c
> rename to drivers/platform/x86/dell-wmi-led.c
> index e5c57389efd6..d0232c7f1909 100644
> --- a/drivers/leds/dell-led.c
> +++ b/drivers/platform/x86/dell-wmi-led.c
> @@ -1,6 +1,4 @@
>  /*
> - * dell_led.c - Dell LED Driver
> - *
>   * Copyright (C) 2010 Dell Inc.
>   * Louis Davis <louis_davis@...l.com>
>   * Jim Dailey <jim_dailey@...l.com>
> 


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