lkml.org 
[lkml]   [2022]   [Jun]   [10]   [last100]   RSS Feed
Views: [wrap][no wrap]   [headers]  [forward] 
 
Messages in this thread
Patch in this message
/
Date
From
SubjectRe: [PATCH] staging: ftbft: Use backlight helper
Hi Stephen,

On Tue, Jun 07, 2022 at 08:55:16PM +0200, Stephen Kitt wrote:
> backlight_properties.fb_blank is deprecated. The states it represents
> are handled by other properties; but instead of accessing those
> properties directly, drivers should use the helpers provided by
> backlight.h.
>
> Instead of manually checking the power state in struct
> backlight_properties, use backlight_is_blank().
>
> Signed-off-by: Stephen Kitt <steve@sk2.org>
> Cc: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
> Cc: "Noralf Trønnes" <noralf@tronnes.org>
> Cc: Thomas Zimmermann <tzimmermann@suse.de>
> Cc: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
> Cc: Javier Martinez Canillas <javierm@redhat.com>
> Cc: Len Baker <len.baker@gmx.com>
> Cc: dri-devel@lists.freedesktop.org
> Cc: linux-fbdev@vger.kernel.org
> Cc: linux-staging@lists.linux.dev
> ---
> drivers/staging/fbtft/fb_ssd1351.c | 3 +--
> drivers/staging/fbtft/fbtft-core.c | 3 +--
> 2 files changed, 2 insertions(+), 4 deletions(-)
>
> diff --git a/drivers/staging/fbtft/fb_ssd1351.c b/drivers/staging/fbtft/fb_ssd1351.c
> index 6fd549a424d5..b8d55aa8c5c7 100644
> --- a/drivers/staging/fbtft/fb_ssd1351.c
> +++ b/drivers/staging/fbtft/fb_ssd1351.c
> @@ -196,8 +196,7 @@ static int update_onboard_backlight(struct backlight_device *bd)
> "%s: power=%d, fb_blank=%d\n",
> __func__, bd->props.power, bd->props.fb_blank);
Could you try to kill this use of props.fb_blank too? ^^^^^^
A local variable should do the trick.

Sam

>
> - on = (bd->props.power == FB_BLANK_UNBLANK) &&
> - (bd->props.fb_blank == FB_BLANK_UNBLANK);
> + on = !backlight_is_blank(bd);
> /* Onboard backlight connected to GPIO0 on SSD1351, GPIO1 unused */
> write_reg(par, 0xB5, on ? 0x03 : 0x02);
>
> diff --git a/drivers/staging/fbtft/fbtft-core.c b/drivers/staging/fbtft/fbtft-core.c
> index 60b2278d8b16..9b3eaed80cdd 100644
> --- a/drivers/staging/fbtft/fbtft-core.c
> +++ b/drivers/staging/fbtft/fbtft-core.c
> @@ -137,8 +137,7 @@ static int fbtft_backlight_update_status(struct backlight_device *bd)
> "%s: polarity=%d, power=%d, fb_blank=%d\n",
> __func__, polarity, bd->props.power, bd->props.fb_blank);
>
> - if ((bd->props.power == FB_BLANK_UNBLANK) &&
> - (bd->props.fb_blank == FB_BLANK_UNBLANK))
> + if (!backlight_is_blank(bd))
> gpiod_set_value(par->gpio.led[0], polarity);
> else
> gpiod_set_value(par->gpio.led[0], !polarity);
>
> base-commit: f2906aa863381afb0015a9eb7fefad885d4e5a56
> --
> 2.30.2

\
 
 \ /
  Last update: 2022-06-10 22:25    [W:0.069 / U:0.228 seconds]
©2003-2020 Jasper Spaans|hosted at Digital Ocean and TransIP|Read the blog|Advertise on this site