linux-kernel - Re: [PATCH v1 1/4] backlight: hx8357: Make use of device properties

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Message-ID: <20240124171953.GA15539@aspen.lan>
Date: Wed, 24 Jan 2024 17:19:53 +0000
From: Daniel Thompson <daniel.thompson@...aro.org>
To: Andy Shevchenko <andriy.shevchenko@...ux.intel.com>
Cc: dri-devel@...ts.freedesktop.org, linux-fbdev@...r.kernel.org,
	linux-kernel@...r.kernel.org, Lee Jones <lee@...nel.org>,
	Jingoo Han <jingoohan1@...il.com>, Helge Deller <deller@....de>
Subject: Re: [PATCH v1 1/4] backlight: hx8357: Make use of device properties

On Sun, Jan 14, 2024 at 05:25:08PM +0200, Andy Shevchenko wrote:
> Convert the module to be property provider agnostic and allow
> it to be used on non-OF platforms.
>
> Include mod_devicetable.h explicitly to replace the dropped of.h
> which included mod_devicetable.h indirectly.
>
> Signed-off-by: Andy Shevchenko <andriy.shevchenko@...ux.intel.com>
> ---
>  drivers/video/backlight/hx8357.c | 14 ++++++++------
>  1 file changed, 8 insertions(+), 6 deletions(-)
>
> diff --git a/drivers/video/backlight/hx8357.c b/drivers/video/backlight/hx8357.c
> index bf18337ff0c2..c7fd10d55c5d 100644
> --- a/drivers/video/backlight/hx8357.c
> +++ b/drivers/video/backlight/hx8357.c
> @@ -8,9 +8,9 @@
>  #include <linux/delay.h>
>  #include <linux/gpio/consumer.h>
>  #include <linux/lcd.h>
> +#include <linux/mod_devicetable.h>
>  #include <linux/module.h>
> -#include <linux/of.h>
> -#include <linux/of_device.h>
> +#include <linux/property.h>
>  #include <linux/spi/spi.h>
>
>  #define HX8357_NUM_IM_PINS	3
> @@ -564,6 +564,8 @@ static struct lcd_ops hx8357_ops = {
>  	.get_power	= hx8357_get_power,
>  };
>
> +typedef int (*hx8357_init)(struct lcd_device *);
> +
>  static const struct of_device_id hx8357_dt_ids[] = {
>  	{
>  		.compatible = "himax,hx8357",
> @@ -582,7 +584,7 @@ static int hx8357_probe(struct spi_device *spi)
>  	struct device *dev = &spi->dev;
>  	struct lcd_device *lcdev;
>  	struct hx8357_data *lcd;
> -	const struct of_device_id *match;
> +	hx8357_init init;

As somewhere else in this thread, I'd find this a lot more readable
as:
	hx8357_init_fn init_fn;

Other than that, LGTM.


Daniel.