From nobody Sun Feb 8 03:58:08 2026 Received: from mail-pl1-f177.google.com (mail-pl1-f177.google.com [209.85.214.177]) (using TLSv1.2 with cipher ECDHE-RSA-AES128-GCM-SHA256 (128/128 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id E752F2FD697 for ; Fri, 6 Feb 2026 12:57:19 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=209.85.214.177 ARC-Seal: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1770382640; cv=none; b=qkgIs7XgzzUU24t36KQWQLFIuTLI37FRggEErzvioDfMCHY2hec5QoDhZWUC2bOydG0gr6aVBxdSJ9pZ6OSCGlm9N4fqcaH5fwkVAgkcHcxpGyytKISB16Nf0/o1PsEVCTSu3EI5d4w8yf6iztRRnKHPe38GbhRlOM4X5hYKRuA= ARC-Message-Signature: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1770382640; c=relaxed/simple; bh=Gm/45C6aiyq1VubFEgZhyjA7HQmfRnDcaftZAQwtYDk=; h=From:To:Cc:Subject:Date:Message-ID:In-Reply-To:References: MIME-Version; b=Pwh6ZmVg5CN7JHEkS6mfOhOlGdCXFw0WcV8M0tp0p+sNp43qSJeM4UpDKHc5VwqG+o3yLXJf1RfO/WjdRwnMvxj0IssZ4FxoIX2Tp58Qirx58dFFI2pifhcM78r4S7J5+srQiKlmbfn8EyI62XXKHbGODTqsp7zhPo9xY/F1jbU= ARC-Authentication-Results: i=1; smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=gmail.com; spf=pass smtp.mailfrom=gmail.com; dkim=pass (2048-bit key) header.d=gmail.com header.i=@gmail.com header.b=YWOqyAHo; arc=none smtp.client-ip=209.85.214.177 Authentication-Results: smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=gmail.com Authentication-Results: smtp.subspace.kernel.org; spf=pass smtp.mailfrom=gmail.com Authentication-Results: smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=gmail.com header.i=@gmail.com header.b="YWOqyAHo" Received: by mail-pl1-f177.google.com with SMTP id d9443c01a7336-2a743050256so14561665ad.3 for ; Fri, 06 Feb 2026 04:57:19 -0800 (PST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20230601; t=1770382639; x=1770987439; darn=vger.kernel.org; h=content-transfer-encoding:mime-version:references:in-reply-to :message-id:date:subject:cc:to:from:from:to:cc:subject:date :message-id:reply-to; bh=9Nj7rTmIxrIyoM/Zv2E7TPav3Q6NYtriqtqId7+NMO4=; b=YWOqyAHo5FT1cTWCmeiUcL3s80iYsRy0X6JKYQWHTuO3yGnzO9HYtu99CrIPywTpeZ wlaxUVbfyvqo5mnLljSlHou7F0Mgk0pCLcY+xLTuh0FTorwc+ujO9LX98Pn/3kMsyb6i 8cO1yqWFD7ksKuCtQBME7C9//3pF2PKGlnySQ/QKKyTQ5Dn4S3hCUBH27heoV4D+Swww Wk1CT33aYego5MOwZNtsKi92RzaeVIwqCqnuZvI7BhRG+NNwnjVjMaRH4+fLktKexpyd SFKjke4g3qo831W3IXzs7t0CgM17ZmE4uwaLH8BWOySe63B0/dBsy1E7gtqXwUDp4WPx f2sg== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20230601; t=1770382639; x=1770987439; h=content-transfer-encoding:mime-version:references:in-reply-to :message-id:date:subject:cc:to:from:x-gm-gg:x-gm-message-state:from :to:cc:subject:date:message-id:reply-to; bh=9Nj7rTmIxrIyoM/Zv2E7TPav3Q6NYtriqtqId7+NMO4=; b=gDSiIGl+CsOCAbwqnxGdUO3BRLZdxFrh+AwJroJ1zYADJwnwxt0aTgZF+khS0nDeDH NMq9W5BfSvAr8EQwcsdxtTei7TaNGnuLFvKcwgr8VpmhhcIyYsj8H6PQ2S4Q6BzDRPk2 R7xWmTxtGM5LeAovnKpwgrchO/w6u6Br89d+kxjiRa1pcHgrFW8KPTdyXbCkisBmRoOw pgpL0jjtIv0+QuS3D02p1Qhyu0wFvU+bvf0Z/BSnoFytym5n9EeR44QpET9ffAvHl2r+ 76aZ+aBaqnzJ9tCzoL6BPWFk2dImRqgUN2Rk0tndtheKqYeTy5l3zeUPZB/hiT5/Bep7 F7hA== X-Forwarded-Encrypted: i=1; AJvYcCUCCQ1exw2ks6o0mPIy5wbO9ySDprEKMcZBTv6TPfhU/R75dNn8kdIKodKXTyh1eZaEDD1TpXeJQmGONVg=@vger.kernel.org X-Gm-Message-State: AOJu0Yxo0QvFMNyvHwGx+vnxUxu1IucADoiTUzqetGE7W3flbhHuyCo9 Js7KB1UXQky/664iwDlZ0P/oHAfs3tIyGZzvYsJ1uCGdXmShv8PDlrc= X-Gm-Gg: AZuq6aIsCPulmxMZmHjz3Ql4d+rgxly1CS7ekYmaxEBO3yRkkUY6hvdCzzSVYsGr0fe QEpKwdJ8GpLNVq690iok9Zo/xCmIY/Ilg4QJr6hW99tJZ4UpFDLzxQaXrxtcv8cD8lKP/KynjHw 8QIvHV7T1nbuf9sHvd5RlQSL95l3oR0jIaZQHfJvRNH3VDwGRZAfzcg0FbommDg6Fg7ZxGE6GJ2 W6peFi7zXJCTpy/T7fDjUZm77u6Z5pR5DIXA/zNQuzLbkDM580MyJVX/6VWGvICMjzcMxV/4Z5c H7v9R4uHrtcQA1xWeoUfwuPvBsh+VesLyWf3lW9pvRQU55jSIxcScLFgWu/y3ItyAiGVR2Dc/aL ftrGNOJgAkAgD2cp1SLBB7KJf6QQyPhxgYiVfbfOpMPvOY2k6MgPxoYbtVO3WGNCfAPiIBPDwg5 HShN0RwQnw+t7R6qsGiuK0b4cXOQ== X-Received: by 2002:a17:902:da91:b0:2a0:c5a6:c8df with SMTP id d9443c01a7336-2a9516cd2fbmr27802775ad.21.1770382639301; Fri, 06 Feb 2026 04:57:19 -0800 (PST) Received: from at.. ([171.61.167.190]) by smtp.gmail.com with ESMTPSA id d9443c01a7336-2a951a636aasm23336005ad.12.2026.02.06.04.57.15 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Fri, 06 Feb 2026 04:57:18 -0800 (PST) From: Atharva Tiwari To: Cc: Lukas Wunner , Atharva Tiwari , Ard Biesheuvel , Hans de Goede , =?UTF-8?q?Ilpo=20J=C3=A4rvinen?= , linux-kernel@vger.kernel.org, linux-efi@vger.kernel.org, platform-driver-x86@vger.kernel.org Subject: [PATCH 2/2] platform/apple-gmux: use apple_brightness to save brightness to EFI Date: Fri, 6 Feb 2026 12:56:22 +0000 Message-ID: <20260206125641.12983-3-atharvatiwarilinuxdev@gmail.com> X-Mailer: git-send-email 2.43.0 In-Reply-To: <20260206125641.12983-1-atharvatiwarilinuxdev@gmail.com> References: <20260206125641.12983-1-atharvatiwarilinuxdev@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: quoted-printable Content-Type: text/plain; charset="utf-8" use apple_brightness to save brightness to EFI. (tested on iMac20,1) Signed-off-by: Atharva Tiwari --- drivers/platform/x86/apple-gmux.c | 7 +++++++ 1 file changed, 7 insertions(+) diff --git a/drivers/platform/x86/apple-gmux.c b/drivers/platform/x86/apple= -gmux.c index 1417e230edbd..cfb20c115eb0 100644 --- a/drivers/platform/x86/apple-gmux.c +++ b/drivers/platform/x86/apple-gmux.c @@ -22,6 +22,7 @@ #include #include #include +#include #include #include =20 @@ -960,6 +961,12 @@ static int gmux_probe(struct pnp_dev *pnp, const struc= t pnp_device_id *id) } =20 gmux_init_debugfs(gmux_data); + if (IS_ENABLED(CONFIG_APPLE_BRIGHTNESS)) { + ret =3D apple_brightness_probe(gmux_data->bdev, &gmux_get_brightness); + if (ret) + pr_warn("Unable to Enable EFI brightness saver: %d\n", ret); + } + return 0; =20 err_register_handler: --=20 2.43.0