From: Sam Ravnborg <sam@ravnborg.org>
To: Paul Cercueil <paul@crapouillou.net>
Cc: Krzysztof Kozlowski <krzysztof.kozlowski+dt@linaro.org>,
Rob Herring <robh+dt@kernel.org>,
Conor Dooley <conor+dt@kernel.org>,
Alim Akhtar <alim.akhtar@samsung.com>,
Neil Armstrong <neil.armstrong@linaro.org>,
devicetree@vger.kernel.org, linux-arm-kernel@lists.infradead.org,
linux-samsung-soc@vger.kernel.org, linux-kernel@vger.kernel.org,
dri-devel@lists.freedesktop.org
Subject: Re: [PATCH 2/3] drm/panel: ld9040: Register a backlight device
Date: Wed, 5 Jul 2023 19:45:50 +0200 [thread overview]
Message-ID: <20230705174550.GC106478@ravnborg.org> (raw)
In-Reply-To: <20230703214715.623447-3-paul@crapouillou.net>
Hi Paul,
On Mon, Jul 03, 2023 at 11:47:14PM +0200, Paul Cercueil wrote:
> Register a backlight device to be able to switch between all the gamma
> levels.
>
> Signed-off-by: Paul Cercueil <paul@crapouillou.net>
> ---
> drivers/gpu/drm/panel/panel-samsung-ld9040.c | 40 ++++++++++++++++++++
> 1 file changed, 40 insertions(+)
>
> diff --git a/drivers/gpu/drm/panel/panel-samsung-ld9040.c b/drivers/gpu/drm/panel/panel-samsung-ld9040.c
> index 7fd9444b42c5..b4f87d6244cb 100644
> --- a/drivers/gpu/drm/panel/panel-samsung-ld9040.c
> +++ b/drivers/gpu/drm/panel/panel-samsung-ld9040.c
> @@ -8,6 +8,7 @@
> * Andrzej Hajda <a.hajda@samsung.com>
> */
>
> +#include <linux/backlight.h>
> #include <linux/delay.h>
> #include <linux/gpio/consumer.h>
> #include <linux/module.h>
> @@ -311,8 +312,40 @@ static int ld9040_parse_dt(struct ld9040 *ctx)
> return 0;
> }
>
> +static int ld9040_bl_update_status(struct backlight_device *dev)
> +{
> + struct ld9040 *ctx = dev_get_drvdata(&dev->dev);
There is also the helper bl_get_data() - that do the same.
Sam
next prev parent reply other threads:[~2023-07-05 17:47 UTC|newest]
Thread overview: 11+ messages / expand[flat|nested] mbox.gz Atom feed top
2023-07-03 21:47 [PATCH 0/3] Galaxy S2 (i9100) panel updates Paul Cercueil
2023-07-03 21:47 ` [PATCH 1/3] drm/panel: ld9040: Use better magic values Paul Cercueil
2023-07-05 13:55 ` Neil Armstrong
2023-07-03 21:47 ` [PATCH 2/3] drm/panel: ld9040: Register a backlight device Paul Cercueil
2023-07-03 23:49 ` 대인기/Tizen Platform Lab(SR)/삼성전자
2023-07-05 9:38 ` Paul Cercueil
2023-07-05 13:57 ` Neil Armstrong
2023-07-05 14:38 ` Paul Cercueil
2023-07-05 17:39 ` Sam Ravnborg
2023-07-05 17:45 ` Sam Ravnborg [this message]
2023-07-03 21:47 ` [PATCH 3/3] ARM: dts: exynos/i9100: Fix LCD screen's physical size Paul Cercueil
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