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[82.37.195.13]) by smtp.gmail.com with ESMTPSA id 5b1f17b1804b1-4909d6975e2sm49548585e9.6.2026.05.29.04.00.14 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Fri, 29 May 2026 04:00:15 -0700 (PDT) Date: Fri, 29 May 2026 12:00:12 +0100 From: Daniel Thompson To: Svyatoslav Ryhel Cc: Lee Jones , Daniel Thompson , Jingoo Han , Pavel Machek , Rob Herring , Krzysztof Kozlowski , Conor Dooley , Jonathan Cameron , David Lechner , Nuno =?iso-8859-1?Q?S=E1?= , Andy Shevchenko , Helge Deller , 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, linux-fbdev@vger.kernel.org Subject: Re: [PATCH v2 2/6] mfd: lm3533: Convert to use OF bindings Message-ID: References: <20260528135123.103745-1-clamor95@gmail.com> <20260528135123.103745-3-clamor95@gmail.com> Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <20260528135123.103745-3-clamor95@gmail.com> On Thu, May 28, 2026 at 04:51:19PM +0300, Svyatoslav Ryhel wrote: > Since there are no users of this driver via platform data, remove the > platform data support and switch to using Device Tree bindings. > Additionally, optimize functions used only by platform data. The last sentence is a little vague and makes us have to hunt for the changes in a relatively large patch. If it is referring to the change to common up the init and update code then it's would better to say that explicitly! > Signed-off-by: Svyatoslav Ryhel > --- > drivers/iio/light/lm3533-als.c | 95 ++++------ > drivers/leds/leds-lm3533.c | 51 ++++-- > drivers/mfd/lm3533-core.c | 268 ++++++++++------------------ > drivers/video/backlight/lm3533_bl.c | 52 ++++-- > include/linux/mfd/lm3533.h | 51 +----- Just one comment for backlight, below: > diff --git a/drivers/video/backlight/lm3533_bl.c b/drivers/video/backlight/lm3533_bl.c > index babfd3ceec86..42da652df58d 100644 > --- a/drivers/video/backlight/lm3533_bl.c > +++ b/drivers/video/backlight/lm3533_bl.c > @@ -295,13 +293,20 @@ static int lm3533_bl_probe(struct platform_device *pdev) > bl->cb.id = lm3533_bl_get_ctrlbank_id(bl); > bl->cb.dev = NULL; /* until registered */ > > + name = devm_kasprintf(&pdev->dev, GFP_KERNEL, "%s-%d", > + pdev->name, pdev->id); > + if (!name) > + return -ENOMEM; > + > memset(&props, 0, sizeof(props)); > props.type = BACKLIGHT_RAW; > props.max_brightness = LM3533_BL_MAX_BRIGHTNESS; > - props.brightness = pdata->default_brightness; Given the big changes to the driver is there any chance of putting a good value in props.scale (BACKLIGHT_SCALE_LINEAR or BACKLIGHT_SCALE_NON_LINEAR)? If the difference between 50% and 100% *looks* like 50% then the scale is non-linear (since humn perception of brightness is not linear). Daniel.