From patchwork Fri Feb 10 22:56:20 2023 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 8bit X-Patchwork-Submitter: Laurent Pinchart X-Patchwork-Id: 13136569 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by smtp.lore.kernel.org (Postfix) with ESMTP id 71C93C636D4 for ; Fri, 10 Feb 2023 22:56:28 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S229538AbjBJW41 (ORCPT ); Fri, 10 Feb 2023 17:56:27 -0500 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:48128 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S229520AbjBJW40 (ORCPT ); Fri, 10 Feb 2023 17:56:26 -0500 Received: from perceval.ideasonboard.com (perceval.ideasonboard.com [213.167.242.64]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id DB7AD26586; Fri, 10 Feb 2023 14:56:25 -0800 (PST) Received: from pendragon.ideasonboard.com (213-243-189-158.bb.dnainternet.fi [213.243.189.158]) by perceval.ideasonboard.com (Postfix) with ESMTPSA id 55668886; Fri, 10 Feb 2023 23:56:24 +0100 (CET) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=ideasonboard.com; s=mail; t=1676069784; bh=HlMIBUjC0BU9Jb7s8XXv15LvZLpgq8Ao2/R1GtyHTyc=; h=From:To:Cc:Subject:Date:From; b=Spbqt+F0Fb7K4oY7iRoLM6lvzR6BJlMHqyC4NIdtpCnbrYP9/hFQ5aGqnydXw9xGI OF2Rz8Df1Mm5++YNouLe21f3fs6PstMuvq65VnOJMqfZc/r3kwKVPGz5bqnU9kj+0A vULxcvY/MiirfH8W2rzCXEV286EWaW4iwG5hi3S0= From: Laurent Pinchart To: linux-media@vger.kernel.org Cc: linux-renesas-soc@vger.kernel.org, Hans Verkuil Subject: [PATCH 0/2] media: i2c: adv7604: Fix handling of video adjustments Date: Sat, 11 Feb 2023 00:56:20 +0200 Message-Id: <20230210225622.24411-1-laurent.pinchart+renesas@ideasonboard.com> X-Mailer: git-send-email 2.39.1 MIME-Version: 1.0 Precedence: bulk List-ID: X-Mailing-List: linux-renesas-soc@vger.kernel.org Hello, This small series fixes two issues with video adjustments (brightness, contrast, saturation and hue) in the adv7604 driver. Patch 1/2 makes those controls effective (they currently have no effect), and patch 2/2 fixes the range of the hue control. I have successfully tested the series with an ADV7612. The ADV7604 and ADV7611 documentation of the hue control differs from the ADV7612, but I believe that's because earlier documentation was incorrect. It could still be useful to test the series with an ADV7604 or ADV7611. In patch 2/2 I've decided to represent the hue value as an unsigned 8-bit integer, mapping to the [0°, 360°[ range. Using a signed value would map to the [-180°, 180°[ range instead, without making any other difference (and without requiring any modification to the patch other than changing the range). I don't have a strong preference between the two options, and I'm pretty sure we can freely pick one without any fear of an impact on existing userspace applications as patch 1/2 shows that the hue control has currently no effect. Laurent Pinchart (2): media: i2c: adv7604: Enable video adjustment media: i2c: adv7604: Fix range of hue control drivers/media/i2c/adv7604.c | 5 ++++- 1 file changed, 4 insertions(+), 1 deletion(-)