From mboxrd@z Thu Jan 1 00:00:00 1970 Delivery-date: Mon, 27 Oct 2025 07:31:21 +0100 Received: from metis.whiteo.stw.pengutronix.de ([2a0a:edc0:2:b01:1d::104]) by lore.white.stw.pengutronix.de with esmtps (TLS1.3) tls TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384 (Exim 4.96) (envelope-from ) id 1vDGlF-00CFKp-0t for lore@lore.pengutronix.de; Mon, 27 Oct 2025 07:31:21 +0100 Received: from bombadil.infradead.org ([2607:7c80:54:3::133]) by metis.whiteo.stw.pengutronix.de with esmtps (TLS1.3:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.92) (envelope-from ) id 1vDGlE-00084C-Nh for lore@pengutronix.de; Mon, 27 Oct 2025 07:31:21 +0100 DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=lists.infradead.org; s=bombadil.20210309; h=Sender:List-Subscribe:List-Help :List-Post:List-Archive:List-Unsubscribe:List-Id:Content-Transfer-Encoding: MIME-Version:References:In-Reply-To:Message-ID:Date:Subject:Cc:To:From: Reply-To:Content-Type:Content-ID:Content-Description:Resent-Date:Resent-From: Resent-Sender:Resent-To:Resent-Cc:Resent-Message-ID:List-Owner; bh=vs/kJQJaRYqLBQxDJTiITuOvy38NAC2psijyKEj/pBE=; b=G0VaPdIN//t1mH/BVMl9uznQly 3+qrE9gAmmgaYYGRCLobogSeao7QkPWhsDvIkedGX0MhgBZ/8FicgpeL0RbSATXT2PPeMMixNaveo fJE5RE7rd9lS47tRDY0xd58JTIFiZYYgR/C0UhzXudX32pexwSDNtzMcnKBs+IkGYGCtFmCNhdSaK wxci+QQhwVKoTw4n7grTsPjQR6HWrV7L5O33fv0LcbAxG/yuS2kbA010omLTr84KmMf9CvKSA8DGn l3HmtQIhTvC+RBNuths+tqQ8hUz/UNHo7qR39t2siJEBCE2FpW2BjTaA/AdT/A04+gof+vUQ9uu2+ 7ViFkt1Q==; Received: from localhost ([::1] helo=bombadil.infradead.org) by bombadil.infradead.org with esmtp (Exim 4.98.2 #2 (Red Hat Linux)) id 1vDGkn-0000000DCL7-38Kr; Mon, 27 Oct 2025 06:30:53 +0000 Received: from desiato.infradead.org ([2001:8b0:10b:1:d65d:64ff:fe57:4e05]) by bombadil.infradead.org with esmtps (Exim 4.98.2 #2 (Red Hat Linux)) id 1vDGkm-0000000DCKD-0sBd for barebox@bombadil.infradead.org; Mon, 27 Oct 2025 06:30:52 +0000 DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=infradead.org; s=desiato.20200630; h=Content-Transfer-Encoding:MIME-Version :References:In-Reply-To:Message-ID:Date:Subject:Cc:To:From:Sender:Reply-To: Content-Type:Content-ID:Content-Description; bh=vs/kJQJaRYqLBQxDJTiITuOvy38NAC2psijyKEj/pBE=; b=IYMmVWbf9Oj3D1Uo4iVaS+npbn fz/t1hlvyPFB9bWsd7zWYWCpBbgyZNMCJE/nDih4m40VEDZTTnUdk7eEHjLoeOpJJpbIncg7WaMeo gaCHZPRBOIXGPu9kxhnvWgYpYICU6H09YiNT9c4tR1DVnjRMtxPNSO3Xh5pTw9sIj66ArN/9/T5CE 1QSSsYtjekZaaT2dL/Bzt+SbnTaKmJ/9EdSdFpCpBowC3ThZZ234K5T1LODLewgY88fkizRrHAFc9 LZmBJ0ieckCIw/AinLribrJDeaWuYcM6DQzul1+Kjw8GoarqnA+O0sKb9IeUkI1sfEg9ZQcxgxb3E wvSEPWnQ==; Received: from metis.whiteo.stw.pengutronix.de ([2a0a:edc0:2:b01:1d::104]) by desiato.infradead.org with esmtps (Exim 4.98.2 #2 (Red Hat Linux)) id 1vDFsz-00000001RjT-1OQw for barebox@lists.infradead.org; Mon, 27 Oct 2025 05:35:19 +0000 Received: from ptz.office.stw.pengutronix.de ([2a0a:edc0:0:900:1d::77] helo=geraet.lan) by metis.whiteo.stw.pengutronix.de with esmtp (Exim 4.92) (envelope-from ) id 1vDGkg-0007sa-Lm; Mon, 27 Oct 2025 07:30:46 +0100 From: Ahmad Fatoum To: barebox@lists.infradead.org Cc: Ahmad Fatoum Date: Mon, 27 Oct 2025 07:30:39 +0100 Message-ID: <20251027063045.2396578-4-a.fatoum@barebox.org> X-Mailer: git-send-email 2.47.3 In-Reply-To: <20251027063045.2396578-1-a.fatoum@barebox.org> References: <20251027063045.2396578-1-a.fatoum@barebox.org> MIME-Version: 1.0 Content-Transfer-Encoding: 8bit X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20251027_053517_437853_6EE1F2B9 X-CRM114-Status: UNSURE ( 9.21 ) X-CRM114-Notice: Please train this message. X-BeenThere: barebox@lists.infradead.org X-Mailman-Version: 2.1.34 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Sender: "barebox" X-SA-Exim-Connect-IP: 2607:7c80:54:3::133 X-SA-Exim-Mail-From: barebox-bounces+lore=pengutronix.de@lists.infradead.org X-Spam-Checker-Version: SpamAssassin 3.4.2 (2018-09-13) on metis.whiteo.stw.pengutronix.de X-Spam-Level: X-Spam-Status: No, score=-4.1 required=4.0 tests=AWL,BAYES_00,DKIMWL_WL_HIGH, DKIM_SIGNED,DKIM_VALID,HEADER_FROM_DIFFERENT_DOMAINS, MAILING_LIST_MULTI,SPF_HELO_NONE,SPF_NONE autolearn=unavailable autolearn_force=no version=3.4.2 Subject: [PATCH 4/4] backlight: support setting brightness as percentage X-SA-Exim-Version: 4.2.1 (built Wed, 08 May 2019 21:11:16 +0000) X-SA-Exim-Scanned: Yes (on metis.whiteo.stw.pengutronix.de) From: Ahmad Fatoum Unlike the PWN duty cycle, we already have a parameter for the brightness, so we can't retroactively redefine it to be in terms of percentages. By setting the scale, we allow users to enter percentages between 0% and 100% over the same parameter as well. Signed-off-by: Ahmad Fatoum --- drivers/video/backlight.c | 7 +++++-- 1 file changed, 5 insertions(+), 2 deletions(-) diff --git a/drivers/video/backlight.c b/drivers/video/backlight.c index 51d245a80fdb..6d8146ee5aa0 100644 --- a/drivers/video/backlight.c +++ b/drivers/video/backlight.c @@ -69,6 +69,7 @@ static int backlight_brightness_set(struct param_d *p, void *priv) int backlight_register(struct backlight_device *bl) { + struct param_d *param; int ret; dev_set_name(&bl->dev, "backlight"); @@ -78,8 +79,10 @@ int backlight_register(struct backlight_device *bl) if (ret) return ret; - dev_add_param_uint32(&bl->dev, "brightness", backlight_brightness_set, - NULL, &bl->brightness, "%u", bl); + param = dev_add_param_uint32(&bl->dev, "brightness", backlight_brightness_set, + NULL, &bl->brightness, "%u", bl); + param_int_set_scale(param, bl->brightness_max); + dev_add_param_uint32(&bl->dev, "slew_time_ms", NULL, NULL, &bl->slew_time_ms, "%u", NULL); -- 2.47.3