linux-kernel - Re: [PATCH v3 2/3] backlight: dwi_bl: Add Apple DWI backlight driver

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Message-ID: <w5niokvjfwajnzz3muccb45jsvqzg7lql7g5tg5s6iat3mtqkk@qu2a5zcp3rs7>
Date: Tue, 10 Dec 2024 09:32:16 +0100
From: Krzysztof Kozlowski <krzk@...nel.org>
To: Nick Chan <towinchenmi@...il.com>
Cc: Lee Jones <lee@...nel.org>, Daniel Thompson <danielt@...nel.org>, 
	Jingoo Han <jingoohan1@...il.com>, Pavel Machek <pavel@....cz>, Rob Herring <robh@...nel.org>, 
	Krzysztof Kozlowski <krzk+dt@...nel.org>, Conor Dooley <conor+dt@...nel.org>, Helge Deller <deller@....de>, 
	Hector Martin <marcan@...can.st>, Sven Peter <sven@...npeter.dev>, 
	Alyssa Rosenzweig <alyssa@...enzweig.io>, dri-devel@...ts.freedesktop.org, linux-leds@...r.kernel.org, 
	devicetree@...r.kernel.org, linux-kernel@...r.kernel.org, linux-fbdev@...r.kernel.org, 
	asahi@...ts.linux.dev, linux-arm-kernel@...ts.infradead.org
Subject: Re: [PATCH v3 2/3] backlight: dwi_bl: Add Apple DWI backlight driver

On Mon, Dec 09, 2024 at 03:58:34PM +0800, Nick Chan wrote:
> Add driver for backlight controllers attached via Apple DWI 2-wire
> interface, which is found on some Apple iPhones, iPads and iPod touches
> with a LCD display.
> 

Nothing improved here.

> Signed-off-by: Nick Chan <towinchenmi@...il.com>
> ---
>  drivers/video/backlight/Kconfig  |  12 +++
>  drivers/video/backlight/Makefile |   1 +
>  drivers/video/backlight/dwi_bl.c | 126 +++++++++++++++++++++++++++++++
>  3 files changed, 139 insertions(+)
>  create mode 100644 drivers/video/backlight/dwi_bl.c
> 
> diff --git a/drivers/video/backlight/Kconfig b/drivers/video/backlight/Kconfig
> index 3614a5d29c71..e64cc3d51ac5 100644
> --- a/drivers/video/backlight/Kconfig
> +++ b/drivers/video/backlight/Kconfig
> @@ -166,6 +166,18 @@ config BACKLIGHT_EP93XX
>  	  To compile this driver as a module, choose M here: the module will
>  	  be called ep93xx_bl.
>  
> +config BACKLIGHT_APPLE_DWI
> +	tristate "Apple DWI 2-Wire Interface Backlight Driver"
> +	depends on ARCH_APPLE || COMPILE_TEST
> +	default y
> +	help
> +          Say Y to enable the backlight driver for backlight controllers
> +          attached via the Apple DWI 2-wire interface which is found in some
> +          Apple iPhones, iPads and iPod touches.
> +
> +	  To compile this driver as a module, choose M here: the module will
> +	  be called dwi_bl.
> +
>  config BACKLIGHT_IPAQ_MICRO
>  	tristate "iPAQ microcontroller backlight driver"
>  	depends on MFD_IPAQ_MICRO
> diff --git a/drivers/video/backlight/Makefile b/drivers/video/backlight/Makefile
> index 8fc98f760a8a..0a569d7f0210 100644
> --- a/drivers/video/backlight/Makefile
> +++ b/drivers/video/backlight/Makefile
> @@ -28,6 +28,7 @@ obj-$(CONFIG_BACKLIGHT_BD6107)		+= bd6107.o
>  obj-$(CONFIG_BACKLIGHT_CLASS_DEVICE)	+= backlight.o
>  obj-$(CONFIG_BACKLIGHT_DA903X)		+= da903x_bl.o
>  obj-$(CONFIG_BACKLIGHT_DA9052)		+= da9052_bl.o
> +obj-$(CONFIG_BACKLIGHT_APPLE_DWI)	+= dwi_bl.o

Nothing improved here.

Best regards,
Krzysztof