[PATCH v3 10/11] video: backlight: lm3533_bl: Implement backlight_scale property
From: Svyatoslav Ryhel <hidden>
Date: 2026-06-01 15:19:15
Also in:
dri-devel, linux-devicetree, linux-iio, linux-leds, lkml
Subsystem:
backlight class/subsystem, framebuffer layer, the rest · Maintainers:
Lee Jones, Daniel Thompson, Jingoo Han, Helge Deller, Linus Torvalds
Since the device supports linear and non-linear modes, implement the backlight_scale property to describe this state. Signed-off-by: Svyatoslav Ryhel <redacted> --- drivers/video/backlight/lm3533_bl.c | 6 ++++++ 1 file changed, 6 insertions(+)
diff --git a/drivers/video/backlight/lm3533_bl.c b/drivers/video/backlight/lm3533_bl.c
index f0d88b7bc229..945625c54fc4 100644
--- a/drivers/video/backlight/lm3533_bl.c
+++ b/drivers/video/backlight/lm3533_bl.c@@ -161,6 +161,7 @@ static ssize_t store_linear(struct device *dev, const char *buf, size_t len) { struct lm3533_bl *bl = dev_get_drvdata(dev); + struct backlight_device *bd = bl->bd; int id = lm3533_bl_get_ctrlbank_id(bl); unsigned long linear; int ret;
@@ -174,6 +175,9 @@ static ssize_t store_linear(struct device *dev, if (ret) return ret; + bd->props.scale = linear ? BACKLIGHT_SCALE_LINEAR : + BACKLIGHT_SCALE_NON_LINEAR; + return len; }
@@ -309,6 +313,8 @@ static int lm3533_bl_probe(struct platform_device *pdev) bl->linear = device_property_read_bool(&pdev->dev, "ti,linear-mapping-mode"); + props.scale = bl->linear ? BACKLIGHT_SCALE_LINEAR : + BACKLIGHT_SCALE_NON_LINEAR; bd = devm_backlight_device_register(&pdev->dev, name, &pdev->dev, bl, &lm3533_bl_ops, &props);
--
2.51.0