From nobody Thu Dec 18 10:01:37 2025 Received: from bali.collaboradmins.com (bali.collaboradmins.com [148.251.105.195]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id 980592512F6; Tue, 11 Feb 2025 11:34:54 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=148.251.105.195 ARC-Seal: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1739273696; cv=none; b=KmKtrtGbopmHmbbJFluRGOp2Z2LBksJZIwlTiMvla1Hqu1XYhLcU00hue2Uw5AjJiCKM7Z/z4CkcTSKyvRM/cY1egWAjIN33D1rS9RWRiuexurVZMLZYIAeEHx7hGiwmsu8RUwqKS+/co8FsJpE+QkoCweT4L6cnSRiilThp4Kk= ARC-Message-Signature: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1739273696; c=relaxed/simple; bh=1g+QX7fFBKnJwOhQKLJmfrV1RgOf/ayILX6PftD7LPs=; h=From:To:Cc:Subject:Date:Message-ID:In-Reply-To:References: MIME-Version; b=kg6uE3tokHF9ExWP1aFltjx2Rd0kHqod4h13v9P8Iip3Zu1nucQJagAi7Okzb7jScA9MSsNiQL1r1eIbCH0mIxYkDPIxW25paXU2d8wNkzSlVL6ACzs0Q+4X5fUegY4pioSMysFxm0LWZ7V7jMg2p4r/1ffBDcTIk75mAAhCVQ4= ARC-Authentication-Results: i=1; smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=collabora.com; spf=pass smtp.mailfrom=collabora.com; dkim=pass (2048-bit key) header.d=collabora.com header.i=@collabora.com header.b=WtJ/Rj+n; arc=none smtp.client-ip=148.251.105.195 Authentication-Results: smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=collabora.com Authentication-Results: smtp.subspace.kernel.org; spf=pass smtp.mailfrom=collabora.com Authentication-Results: smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=collabora.com header.i=@collabora.com header.b="WtJ/Rj+n" DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=collabora.com; s=mail; t=1739273693; bh=1g+QX7fFBKnJwOhQKLJmfrV1RgOf/ayILX6PftD7LPs=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=WtJ/Rj+n+0Mwr0yPHhZgLLdpCfBmVHGdRptLUJVu0tu98tfMfKLFkGxalLm3PU4SO /e0355YNLOGwdMClfxBC8FQZMHU+t18emP+P9ST3twd+pLFJAExpWnKbc605RYE0B/ wn4szlidqi9jkfHvyHPEIWTOfuktMuFRUZKn1Zdol6K7hREL7KCGUFYQefzx4GZR3v jcilZ3biAtrk/Iob3kozO4LbkHbCcfKvbRrijVRrKzEbTyoduqO+Zne4sfcuSAObdK qR88MGAZ18vyVObvB7NUYnW8Av0y7FvkSwSpy8ik4V+TC15/0pSWLyK3UCuOQHDUU9 kOjsTdVlZdMyQ== Received: from IcarusMOD.eternityproject.eu (2-237-20-237.ip236.fastwebnet.it [2.237.20.237]) (using TLSv1.3 with cipher TLS_AES_256_GCM_SHA384 (256/256 bits) key-exchange X25519 server-signature RSA-PSS (4096 bits) server-digest SHA256) (No client certificate requested) (Authenticated sender: kholk11) by bali.collaboradmins.com (Postfix) with ESMTPSA id DE01517E1548; Tue, 11 Feb 2025 12:34:51 +0100 (CET) From: AngeloGioacchino Del Regno To: chunkuang.hu@kernel.org Cc: p.zabel@pengutronix.de, airlied@gmail.com, simona@ffwll.ch, maarten.lankhorst@linux.intel.com, mripard@kernel.org, tzimmermann@suse.de, robh@kernel.org, krzk+dt@kernel.org, conor+dt@kernel.org, matthias.bgg@gmail.com, angelogioacchino.delregno@collabora.com, ck.hu@mediatek.com, jitao.shi@mediatek.com, jie.qiu@mediatek.com, junzhi.zhao@mediatek.com, dri-devel@lists.freedesktop.org, linux-mediatek@lists.infradead.org, devicetree@vger.kernel.org, linux-kernel@vger.kernel.org, linux-arm-kernel@lists.infradead.org, kernel@collabora.com, dmitry.baryshkov@linaro.org, lewis.liao@mediatek.com, ives.chenjh@mediatek.com, tommyyl.chen@mediatek.com, jason-jh.lin@mediatek.com Subject: [PATCH v6 22/42] drm/mediatek: mtk_hdmi: Move N/CTS setting to new function Date: Tue, 11 Feb 2025 12:33:49 +0100 Message-ID: <20250211113409.1517534-23-angelogioacchino.delregno@collabora.com> X-Mailer: git-send-email 2.48.1 In-Reply-To: <20250211113409.1517534-1-angelogioacchino.delregno@collabora.com> References: <20250211113409.1517534-1-angelogioacchino.delregno@collabora.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" In preparation for splitting common bits of this driver, moving the hdmi_rec_n_table struct array, and the hdmi_recommended_n(), hdmi_mode_clock_to_hz(), hdmi_expected_cts() functions, add one function called mtk_hdmi_get_ncts() that sets both N and CTS in a single call. Reviewed-by: CK Hu Signed-off-by: AngeloGioacchino Del Regno --- drivers/gpu/drm/mediatek/mtk_hdmi.c | 10 ++++++++-- 1 file changed, 8 insertions(+), 2 deletions(-) diff --git a/drivers/gpu/drm/mediatek/mtk_hdmi.c b/drivers/gpu/drm/mediatek= /mtk_hdmi.c index b5245ac15801..8a26cfc9fc61 100644 --- a/drivers/gpu/drm/mediatek/mtk_hdmi.c +++ b/drivers/gpu/drm/mediatek/mtk_hdmi.c @@ -682,6 +682,13 @@ static unsigned int hdmi_expected_cts(unsigned int aud= io_sample_rate, 128 * audio_sample_rate); } =20 +static void mtk_hdmi_get_ncts(unsigned int sample_rate, unsigned int clock, + unsigned int *n, unsigned int *cts) +{ + *n =3D hdmi_recommended_n(sample_rate, clock); + *cts =3D hdmi_expected_cts(sample_rate, clock, *n); +} + static void do_hdmi_hw_aud_set_ncts(struct mtk_hdmi *hdmi, unsigned int n, unsigned int cts) { @@ -712,8 +719,7 @@ static void mtk_hdmi_hw_aud_set_ncts(struct mtk_hdmi *h= dmi, { unsigned int n, cts; =20 - n =3D hdmi_recommended_n(sample_rate, clock); - cts =3D hdmi_expected_cts(sample_rate, clock, n); + mtk_hdmi_get_ncts(sample_rate, clock, &n, &cts); =20 dev_dbg(hdmi->dev, "%s: sample_rate=3D%u, clock=3D%d, cts=3D%u, n=3D%u\n", __func__, sample_rate, clock, n, cts); --=20 2.48.1