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Fri, 31 Jul 2026 04:37:20 -0700 (PDT) From: Svyatoslav Ryhel To: Lee Jones , Daniel Thompson , Jingoo Han , Pavel Machek , Rob Herring , Krzysztof Kozlowski , Conor Dooley , Jonathan Cameron , David Lechner , =?UTF-8?q?Nuno=20S=C3=A1?= , Andy Shevchenko , Helge Deller , Svyatoslav Ryhel Cc: Johan Hovold , dri-devel@lists.freedesktop.org, linux-leds@vger.kernel.org, devicetree@vger.kernel.org, linux-kernel@vger.kernel.org, linux-iio@vger.kernel.org, mfd@lists.linux.dev, linux-fbdev@vger.kernel.org Subject: [PATCH v6 13/14] video: backlight: lm3533_bl: Implement backlight_scale property Date: Fri, 31 Jul 2026 14:36:31 +0300 Message-ID: <20260731113632.158440-14-clamor95@gmail.com> X-Mailer: git-send-email 2.53.0 In-Reply-To: <20260731113632.158440-1-clamor95@gmail.com> References: <20260731113632.158440-1-clamor95@gmail.com> Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Transfer-Encoding: 8bit Since the device supports linear and non-linear modes, implement the backlight_scale property to describe this state. Signed-off-by: Svyatoslav Ryhel Reviewed-by: Daniel Thompson (RISCstar) --- 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 666213cab667a..adcd6ac7cf229 100644 --- a/drivers/video/backlight/lm3533_bl.c +++ b/drivers/video/backlight/lm3533_bl.c @@ -141,6 +141,7 @@ static ssize_t store_linear(struct device *dev, struct device_attribute *attr, { struct lm3533_bl *bl = dev_get_drvdata(dev); int ctrlbank = lm3533_bl_get_ctrlbank_id(bl); + struct backlight_device *bd = bl->bd; unsigned long linear; int ret; @@ -152,6 +153,9 @@ static ssize_t store_linear(struct device *dev, struct device_attribute *attr, if (ret) return ret; + bd->props.scale = linear ? BACKLIGHT_SCALE_LINEAR : + BACKLIGHT_SCALE_NON_LINEAR; + return len; } @@ -294,6 +298,8 @@ 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); -- 2.53.0