From: Sam Ravnborg <sam@ravnborg.org>
To: Stephen Kitt <steve@sk2.org>
Cc: Lee Jones <lee@kernel.org>,
Daniel Thompson <daniel.thompson@linaro.org>,
Jingoo Han <jingoohan1@gmail.com>,
linux-fbdev@vger.kernel.org, Helge Deller <deller@gmx.de>,
linux-kernel@vger.kernel.org, dri-devel@lists.freedesktop.org
Subject: Re: [PATCH RESEND 2/4] backlight: arcxcnn: Use backlight helper
Date: Fri, 6 Jan 2023 18:44:49 +0100 [thread overview]
Message-ID: <Y7heER7NIHVFQY8a@ravnborg.org> (raw)
In-Reply-To: <20230106164856.1453819-3-steve@sk2.org>
On Fri, Jan 06, 2023 at 05:48:53PM +0100, Stephen Kitt wrote:
> Instead of retrieving the backlight brightness in struct
> backlight_properties manually, and then checking whether the backlight
> should be on at all, use backlight_get_brightness() which does all
> this and insulates this from future changes.
>
> Signed-off-by: Stephen Kitt <steve@sk2.org>
Reviewed-by: Sam Ravnborg <sam@ravnborg.org>
> ---
> drivers/video/backlight/arcxcnn_bl.c | 5 +----
> 1 file changed, 1 insertion(+), 4 deletions(-)
>
> diff --git a/drivers/video/backlight/arcxcnn_bl.c b/drivers/video/backlight/arcxcnn_bl.c
> index 555b036643fb..e610d7a1d13d 100644
> --- a/drivers/video/backlight/arcxcnn_bl.c
> +++ b/drivers/video/backlight/arcxcnn_bl.c
> @@ -130,12 +130,9 @@ static int arcxcnn_set_brightness(struct arcxcnn *lp, u32 brightness)
> static int arcxcnn_bl_update_status(struct backlight_device *bl)
> {
> struct arcxcnn *lp = bl_get_data(bl);
> - u32 brightness = bl->props.brightness;
> + u32 brightness = backlight_get_brightness(bl);
> int ret;
>
> - if (bl->props.state & (BL_CORE_SUSPENDED | BL_CORE_FBBLANK))
> - brightness = 0;
> -
> ret = arcxcnn_set_brightness(lp, brightness);
> if (ret)
> return ret;
> --
> 2.30.2
next prev parent reply other threads:[~2023-01-06 17:44 UTC|newest]
Thread overview: 4+ messages / expand[flat|nested] mbox.gz Atom feed top
2023-01-06 16:48 [PATCH RESEND 2/4] backlight: arcxcnn: Use backlight helper Stephen Kitt
2023-01-06 17:44 ` Sam Ravnborg [this message]
2023-01-09 10:17 ` Daniel Thompson
2023-01-19 21:38 ` Lee Jones
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